{"id":22637,"date":"2025-10-22T01:22:57","date_gmt":"2025-10-21T23:22:57","guid":{"rendered":"https:\/\/www.jgclassics.com\/2025\/10\/22\/sistemes-de-ventilacio-del-carter-als-motors-ventoux\/"},"modified":"2025-10-22T10:26:48","modified_gmt":"2025-10-22T08:26:48","slug":"sistemes-de-ventilacio-del-carter-als-motors-ventoux","status":"publish","type":"post","link":"https:\/\/www.jgclassics.com\/ca\/2025\/10\/22\/sistemes-de-ventilacio-del-carter-als-motors-ventoux\/","title":{"rendered":"Sistemes de ventilaci\u00f3 del c\u00e0rter als motors Ventoux"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"22637\" class=\"elementor elementor-22637 elementor-22596\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-5753eadc elementor-section-boxed elementor-section-height-default 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elementor-top-section elementor-element elementor-element-138c4407 elementor-section-full_width elementor-section-height-min-height elementor-section-stretched elementor-section-height-default elementor-section-items-middle\" data-id=\"138c4407\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3bd6d333\" data-id=\"3bd6d333\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7ad34c86 elementor-invisible elementor-widget elementor-widget-image\" data-id=\"7ad34c86\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInUp&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1019\" height=\"770\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final.jpg\" class=\"attachment-1536x1536 size-1536x1536 wp-image-22626\" alt=\"Motor Renault Ventoux 670-01\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final.jpg 1019w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final-300x227.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final-768x580.jpg 768w\" sizes=\"(max-width: 1019px) 100vw, 1019px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6882606a elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"6882606a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInDown&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Sistemes de ventilaci\u00f3 del c\u00e0rter als motors Ventoux<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-42e091c elementor-widget__width-inherit elementor-invisible elementor-widget elementor-widget-heading\" data-id=\"42e091c\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_animation&quot;:&quot;fadeInDown&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Respirar o rebentar: com Renault va resoldre la ventilaci\u00f3 del c\u00e0rter als motors Ventoux dels anys 50 i 60<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f6bcab6 elementor-widget elementor-widget-post-info\" data-id=\"4f6bcab6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"post-info.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-inline-items elementor-icon-list-items elementor-post-info\">\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-6869cb2 elementor-inline-item\" itemprop=\"author\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/ca\/author\/jgclassics_hikp0z\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-user-circle\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-author\">\n\t\t\t\t\t\t\t\t\t\tJG Classics Administrator\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-a911f47 elementor-inline-item\" itemprop=\"datePublished\">\n\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/ca\/2025\/10\/22\/\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-calendar\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-date\">\n\t\t\t\t\t\t\t\t\t\t<time>octubre 22, 2025<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t<\/li>\n\t\t\t\t<li class=\"elementor-icon-list-item elementor-repeater-item-5aa2e53 elementor-inline-item\">\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"far fa-clock\"><\/i>\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text elementor-post-info__item elementor-post-info__item--type-time\">\n\t\t\t\t\t\t\t\t\t\t<time>1:22 am<\/time>\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-11d7b4e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"11d7b4e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-742acb2\" data-id=\"742acb2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c3ec336 elementor-widget elementor-widget-heading\" data-id=\"c3ec336\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">El principi general<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6024b31 elementor-widget elementor-widget-text-editor\" data-id=\"6024b31\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En un motor de combusti\u00f3, una petita part dels gasos de la c\u00e0mera passa entre els c\u00e8rcols del pist\u00f3 cap al c\u00e0rter: \u00e9s el que es coneix com a <em>blow-by<\/em> .<br> Aquesta barreja de gasos i vapor d&#8217;oli augmenta la pressi\u00f3 interna i, si no s&#8217;evacua correctament, acaba empenyent l&#8217;oli per qualsevol punt feble: juntes, retens o fins i tot per la vareta de nivell.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-438693c elementor-widget elementor-widget-text-editor\" data-id=\"438693c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La missi\u00f3 del sistema de ventilaci\u00f3 del c\u00e0rter \u00e9s tan simple com vital: <strong>mantenir la pressi\u00f3 interna equilibrada<\/strong> i permetre que aquests gasos surtin sense arrossegar oli.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9eac785 elementor-widget elementor-widget-text-editor\" data-id=\"9eac785\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En els motors moderns, una <a href=\"https:\/\/es.wikipedia.org\/wiki\/Sistema_de_ventilaci%C3%B3n_de_gases_del_c%C3%A1rter_(PCV)\" target=\"_blank\" rel=\"noopener\">v\u00e0lvula PCV<\/a> connecta el c\u00e0rter amb l&#8217;admissi\u00f3, usant la depressi\u00f3 del col\u00b7lector per aspirar els gasos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d3c5e37 elementor-widget elementor-widget-text-editor\" data-id=\"d3c5e37\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La funci\u00f3 principal del <strong>respirador del c\u00e0rter<\/strong> \u00e9s alleujar la pressi\u00f3 acumulada pels gasos de blow-by que es filtren des dels cilindres, evitant que aquesta pressi\u00f3 forci l&#8217;oli a sortir per retens i juntes. Si la ventilaci\u00f3 \u00e9s deficient o obstru\u00efda, el motor intentar\u00e0 expulsar la pressi\u00f3 \u201cper on pugui\u201d, provocant fuites d&#8217;oli en retens, juntes i fins i tot fent saltar parcialment la vareta de nivell d&#8217;oli. Moltes vegades \u00e9s com\u00fa passar per alt aquest sistema, per\u00f2 en motors veterans una ventilaci\u00f3 inadequada pot ser el \u201cculpable silenci\u00f3s\u201d de consums d&#8217;oli an\u00f2mals i fugides persistents.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-0759a5c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0759a5c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7fc11af\" data-id=\"7fc11af\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6589a44 elementor-widget elementor-widget-heading\" data-id=\"6589a44\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">La respiraci\u00f3 del carter als motors Ventoux<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-d180327 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d180327\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-6b3535e\" data-id=\"6b3535e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b8fe71f elementor-widget elementor-widget-image\" data-id=\"b8fe71f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/motor-670-05.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"motor 670-05\" data-elementor-lightbox-description=\"Motor Renault Dauphine Gordini 670-05\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MjcsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9tb3Rvci02NzAtMDUuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"937\" height=\"788\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/motor-670-05.jpg\" class=\"attachment-large size-large wp-image-22627\" alt=\"Motor Renault Dauphine Gordini 670-05\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/motor-670-05.jpg 937w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/motor-670-05-300x252.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/motor-670-05-768x646.jpg 768w\" sizes=\"(max-width: 937px) 100vw, 937px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-93a3591\" data-id=\"93a3591\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6a96fb4 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"6a96fb4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Els motors Renault Ventoux (4CV, Dauphine, Gordini, Ondine i primers Floride) <strong>no tenien depressi\u00f3 d&#8217;admissi\u00f3<\/strong> : depenien de respiradors passius i de l&#8217;equilibri de pressions naturals dins del bloc i feien servir un sistema obert que deixava escapar els gasos i vapors d&#8217;oli directament a l&#8217;atmosfera.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c3a087 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2c3a087\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Al llarg de la vida del motor Ventoux, Renault va adoptar diferents solucions: des de simples taps respiradors amb reixeta, fins a tubs de ventilaci\u00f3 ubicats a la tapa de balancins o al bloc. A continuaci\u00f3, veurem l&#8217;evoluci\u00f3 hist\u00f2rica d&#8217;aquestes solucions segons les versions del motor (identificades per refer\u00e8ncies com <em>Type 662<\/em> al 4CV, <em>670-01\/02<\/em> a Dauphine est\u00e0ndard, <em>670-04<\/em> i <em>670-05<\/em> a Dauphine Gordini. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-78e898e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"78e898e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c66ce86\" data-id=\"c66ce86\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-568d5dd elementor-widget elementor-widget-heading\" data-id=\"568d5dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Primeres versions: Renault 4CV (motor Tipus 662)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-9e776c4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9e776c4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-ebb569d\" data-id=\"ebb569d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-72b889c elementor-widget elementor-widget-text-editor\" data-id=\"72b889c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El petit Renault 4CV, produ\u00eft des del 1947, va inaugurar la fam\u00edlia de motors Billancourt\/Ventoux amb cilindrades de 760 cc (versi\u00f3 inicial Type 662-1) i despr\u00e9s 747 cc (Type 662-2). En els seus primers anys, la ventilaci\u00f3 del c\u00e0rter del 4CV era es confiava a : <\/p>\n<ul>\n<li><strong>Un respirador<\/strong> era el propi <strong>tap d&#8217;ompliment d&#8217;oli<\/strong> , dissenyat amb un element filtrant intern per deixar sortir els vapors. Aquesta configuraci\u00f3 era t\u00edpica en motors de l\u00e8poca, sense connexions al filtre daire ni v\u00e0lvules antiretorn. <\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bb00d9 elementor-widget elementor-widget-image\" data-id=\"3bb00d9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Motor Ventoux Renault 4CV\" data-elementor-lightbox-description=\"Motor Ventoux Renault 4CV. Veure respirador del c\u00e0rter en bloc motor. \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MjgsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9yZW5hdWx0NENWX21vdG9yX3Jlc3BpcmFkZXJvLXNjYWxlZC5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"709\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-1024x709.jpg\" class=\"attachment-large size-large wp-image-22628\" alt=\"Motor Ventoux Renault 4CV. Respirador c\u00e0rter\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-1024x709.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-300x208.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-768x531.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-1536x1063.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault4CV_motor_respiradero-2048x1417.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3555430\" data-id=\"3555430\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a0e0aaf elementor-widget elementor-widget-image\" data-id=\"a0e0aaf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventilo-tapa-valvulas.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Renault 4CV tapa de balancins\" data-elementor-lightbox-description=\"Renault 4CV tapa de balancins (model 1062). Totes elles utilitzen el tap ventilat. Tot i que algunes tenen pipeta de ventilaci\u00f3.  \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MjksInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC92ZW50aWxvLXRhcGEtdmFsdnVsYXMuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"826\" height=\"770\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventilo-tapa-valvulas.jpg\" class=\"attachment-large size-large wp-image-22629\" alt=\"Renault 4CV tapa de balancins\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventilo-tapa-valvulas.jpg 826w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventilo-tapa-valvulas-300x280.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventilo-tapa-valvulas-768x716.jpg 768w\" sizes=\"(max-width: 826px) 100vw, 826px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d45b927 elementor-widget elementor-widget-text-editor\" data-id=\"d45b927\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><strong>Un respirador al lateral dret del bloc<\/strong> motor que evacuava l&#8217;exc\u00e9s de pressi\u00f3 a l&#8217;atmosfera. Respirador la longitud del tub del qual (exactament 67 mm) estava acuradament mesurada per generar la sortida de gasos segurament ajudar a la seva evacuaci\u00f3 per efecte Venturi durant la marxa del vehicle, i evitar que aquest respirador es convert\u00eds en una font de \u201ccontrapressi\u00f3\u201d cap al c\u00e0rter (causant l&#8217;efecte contrari al desitjat). Podeu veure <a href=\"https:\/\/www.jgclassics.com\/ca\/2025\/10\/22\/sistemes-de-ventilacio-del-carter-als-motors-ventoux\/#RESPIRADERO_4CV\" data-wplink-edit=\"true\">aqu\u00ed una il\u00b7lustraci\u00f3<\/a> del manual de l&#8217;\u00e8poca<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-78209c8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"78209c8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-0144428\" data-id=\"0144428\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6b88518 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"6b88518\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En algunes versions posteriors del Renault 4CV \u00e9s possible trobar un <strong>tub respirador addicional<\/strong> ubicat a la part superior del motor. Aquest tub sortia de la tapa de balancins i permetia un <strong>\u201cesplaiament\u201d<\/strong> m\u00e9s efica\u00e7 dels gasos del c\u00e0rter. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2d5f8f1 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"2d5f8f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En altres paraules, el 4CV (depenent de les versions) va arribar a tenir <strong>tres punts de<\/strong> respiraci\u00f3 disponibles en les quals era possible instal\u00b7lar tap tancat tenint llavors <strong>dos punts de respiraci\u00f3<\/strong> (pipeta al bloc motor+tub sortint de la tapa de balancins) <strong>&#8211; o tres punts de ventilaci\u00f3<\/strong> (pipeta al bloc motor+tub sortint de la tapa de balancins+tapa) <strong>.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f4fe58a\" data-id=\"f4fe58a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-47e8571 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"47e8571\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"renault 4CV motor\" data-elementor-lightbox-description=\"Renault 4CV motor. Observar respirador al lateral posterior dret de la tapa de balancins \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzAsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9yZW5hdWx0LTRDVi1tb3Rvci5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"937\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor-1024x937.jpg\" class=\"attachment-large size-large wp-image-22630\" alt=\"Renault 4CV motor. Observar respirador al lateral posterior dret de la tapa de balancins\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor-1024x937.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor-300x275.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor-768x703.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/renault-4CV-motor.jpg 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Renault 4CV motor. Observar respirador al lateral posterior dret de la tapa de balancins <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-0369f7e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0369f7e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a0b28b0\" data-id=\"a0b28b0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-726b28b elementor-widget elementor-widget-text-editor\" data-id=\"726b28b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Sigui com<\/em> sigui, la criticitat d&#8217;aquests punts \u00e9s emp\u00edricament comprovada. la ventilaci\u00f3. (en realitat nosaltres <a href=\"https:\/\/www.jgclassics.com\/ca\/2025\/10\/18\/el-meu-cotxe-classic-perd-oli-v-problemes-del-respirador-del-motor-i-ventilacio-del-carter\/\" target=\"_blank\" rel=\"noopener\">tamb\u00e9 en podem donar fe<\/a> :-)) <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-ea25c50 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ea25c50\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dc5512a\" data-id=\"dc5512a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d9a7dac elementor-widget elementor-widget-menu-anchor\" data-id=\"d9a7dac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"RESPIRADERO_4CV\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-9f8a87e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9f8a87e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-5c8bf82\" data-id=\"5c8bf82\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-da5e87b elementor-widget elementor-widget-image\" data-id=\"da5e87b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"respirador bloc motor renault 4CV\" data-elementor-lightbox-description=\"respirador bloc motor renault 4CV\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzEsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9yZXNwaXJhZGVyby1ibG9xdWUtbW90b3ItcmVuYXVsdC00Q1YuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"380\" height=\"297\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV.jpg\" class=\"attachment-large size-large wp-image-22631\" alt=\"respirador bloc motor renault 4CV\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV.jpg 380w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV-300x234.jpg 300w\" sizes=\"(max-width: 380px) 100vw, 380px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">respirador bloc motor renault 4CV<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-a9e8345\" data-id=\"a9e8345\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d4dc98f elementor-widget elementor-widget-image\" data-id=\"d4dc98f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV-cotas.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"respirador bloc motor renault 4CV-cotes\" data-elementor-lightbox-description=\"respirador bloc motor renault 4CV. Detall cotes de muntatge \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzIsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9yZXNwaXJhZGVyby1ibG9xdWUtbW90b3ItcmVuYXVsdC00Q1YtY290YXMuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"272\" height=\"363\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV-cotas.jpg\" class=\"attachment-large size-large wp-image-22632\" alt=\"respirador bloc motor renault 4CV. Detall cotes de muntatge\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV-cotas.jpg 272w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/respiradero-bloque-motor-renault-4CV-cotas-225x300.jpg 225w\" sizes=\"(max-width: 272px) 100vw, 272px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-6224e68\" data-id=\"6224e68\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-935631d elementor-widget elementor-widget-text-editor\" data-id=\"935631d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong data-start=\"209\" data-end=\"227\">Primera imatge (foto)<\/strong> , el cl\u00e0ssic <em data-start=\"240\" data-end=\"251\">reniflard<\/em> lateral del bloc motor del Renault 4CV: un tub calibrat que evacua els vapors del c\u00e0rter cap a l&#8217;exterior.<br data-start=\"364\" data-end=\"367\"><strong data-start=\"367\" data-end=\"383\">Segona imatge (dibuix)<\/strong> , l&#8217;esquema original del manual de taller que indica la longitud exacta (67 mm) que ha de sobresortir el tub, imprescindible per evitar tant l&#8217;aspiraci\u00f3 d&#8217;aire Venturi com la projecci\u00f3 d&#8217;oli a l&#8217;exterior.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-665964c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"665964c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c216c64\" data-id=\"c216c64\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d3faab5 elementor-widget elementor-widget-heading\" data-id=\"d3faab5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Renault Dauphine est\u00e0ndard (motor Tipus 670)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3db49d4 elementor-widget elementor-widget-text-editor\" data-id=\"3db49d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El Renault Dauphine (projecte R1090), llan\u00e7at el 1956, equipava una versi\u00f3 ampliada del motor Ventoux \u2013 845 cc \u2013 coneguda com <em>a Type 670-01<\/em> (27\u201331 CV segons norma). Des del seu inici, el Dauphine va incorporar un sistema de ventilaci\u00f3 molt similar a l&#8217;\u00faltim esquema del 4CV, \u00e9s a dir, amb <g id=\"gid_1\">un respirador fix muntat<\/g> al bloc <g id=\"gid_2\">m\u00e9s un tap d&#8217;omplert ventilat<\/g> . El sistema del respirador fixat al bloc va desapar\u00e8ixer al motor 670-02 i ja no va tornar a apar\u00e8ixer al Dauphine (o Gordini) deixant-se o b\u00e9 el tap ventilat, el tub lateral (670-05) o una combinaci\u00f3 de tots dos  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-ed3208f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed3208f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-e083ce7\" data-id=\"e083ce7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1cc5d9a elementor-widget elementor-widget-image\" data-id=\"1cc5d9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Motor Renault Ventoux 670-02\" data-elementor-lightbox-description=\"Motor Renault Ventoux 670-01. Al 670-01 encara es conserva la pipeta de ventilaci\u00f3 del c\u00e0rter al bloc motor. \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MjYsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC82NzAtMDFfZGV0YWlsX2ZpbmFsLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1019\" height=\"770\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final.jpg\" class=\"attachment-large size-large wp-image-22626\" alt=\"Motor Renault Ventoux 670-01\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final.jpg 1019w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final-300x227.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-01_detail_final-768x580.jpg 768w\" sizes=\"(max-width: 1019px) 100vw, 1019px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Motor Renault Ventoux 670-01. Al 670-01 encara es conserva la pipeta de ventilaci\u00f3 del c\u00e0rter al bloc motor. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9d8317a\" data-id=\"9d8317a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2cef7da elementor-widget elementor-widget-image\" data-id=\"2cef7da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Motor Renault Ventoux 670-02\" data-elementor-lightbox-description=\"Motor Renault Ventoux 670-02. Observar l&#039;abs\u00e8ncia de pipeta de ventilaci\u00f3 per al c\u00e0rter al bloc motor \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzMsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC82NzAtMDJfZGV0YWlsX2ZpbmFsLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"840\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final-1024x840.jpg\" class=\"attachment-large size-large wp-image-22633\" alt=\"Motor Renault Ventoux 670-02\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final-1024x840.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final-300x246.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final-768x630.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/670-02_detail_final.jpg 1405w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Motor Renault Ventoux 670-02. Observar l'abs\u00e8ncia de pipeta de ventilaci\u00f3 per al c\u00e0rter al bloc motor <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-42e43c0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"42e43c0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-92ec8fb\" data-id=\"92ec8fb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40fe452 elementor-widget elementor-widget-text-editor\" data-id=\"40fe452\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Al motor <strong data-start=\"162\" data-end=\"180\">Renault 670-04<\/strong> , la ventilaci\u00f3 del c\u00e0rter es realitzava a trav\u00e9s d&#8217;un <strong data-start=\"285\" data-end=\"331\">tap d&#8217;ompliment amb respirador integrat<\/strong> , visible a la part superior de la tapa de balancins. Aquest tap, equipat amb una petita <strong data-start=\"425\" data-end=\"455\">reixeta met\u00e0l\u00b7lica filtrant<\/strong> , permetia el pas dels gasos del c\u00e0rter cap a l&#8217;exterior, mantenint equilibrada la pressi\u00f3 interna.<br data-start=\"560\" data-end=\"563\"> La tapa incorporava a m\u00e9s un <strong data-start=\"593\" data-end=\"623\">petit deflector interior<\/strong> que actuava com a separador d&#8217;oli, evitant que les gotes en suspensi\u00f3 sortissin juntament amb els vapors. Aquest sistema, encara que simple, va resultar efica\u00e7 per als r\u00e8gims i condicions de funcionament del Dauphine de s\u00e8rie i va ser la base sobre la qual Renault va evolucionar els posteriors motors Ventoux de tipus 670-05 de les versions Gordini.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c914312\" data-id=\"c914312\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-13f8179 elementor-widget elementor-widget-image\" data-id=\"13f8179\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Motor Renault Dauphine: Tapa balancins motor 670-04\" data-elementor-lightbox-description=\"Motor Renault Dauphine: Tapa balancins motor 670-04. \u00das de tap ventilat amb respirador. \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzQsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9kYXVwaGluZV82NzAtMDRfZGVzcGllY2UuMS5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"673\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-1024x673.jpg\" class=\"attachment-large size-large wp-image-22634\" alt=\"Motor Renault Dauphine: Tapa balancins motor 670-04\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-1024x673.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-300x197.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-768x505.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-1536x1009.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-04_despiece.1-2048x1346.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Motor Renault Dauphine: Tapa balancins motor 670-04. \u00das de tap ventilat amb respirador. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-b181e11 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b181e11\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a53da45\" data-id=\"a53da45\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe9d590 elementor-widget elementor-widget-text-editor\" data-id=\"fe9d590\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sigui com sigui, la funci\u00f3 tant del tap ventilat com la de la sortida de gasos de la tapa de balancins era retenir les part\u00edcules d&#8217;oli (que tornaven a c\u00f3rrer al motor) i deixar passar nom\u00e9s els gasos.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ed7e748 elementor-widget elementor-widget-text-editor\" data-id=\"ed7e748\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>El Dauphine igual que el R4CV tampoc no recirculava aquests gasos a l&#8217;admissi\u00f3; simplement els expulsava. Com assenyala una publicaci\u00f3 t\u00e8cnica, <strong>els motors Ventoux confiaven tota la seva ventilaci\u00f3 a aquestes sortides directes a atmosfera<\/strong> . <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f157ad6 elementor-widget elementor-widget-text-editor\" data-id=\"f157ad6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A la pr\u00e0ctica, un Dauphine en bon estat amb prou feines treia fum pel respirador; per\u00f2 en unitats gastades era notori veure la <em>\u201csegona fuita\u201d<\/em> fent fum blanc-blau pel tubet de la tapa de balancins. Aix\u00f2 era s\u00edmptoma de <em>blow-by<\/em> excessiu (segments de pist\u00f3 desgastats) i no una fallada del respirador en si. Tot i aix\u00f2, <strong>si el respirador es taponava<\/strong> , encara que el motor estigu\u00e9s sa, la pressi\u00f3 interna pujava r\u00e0pidament en rodar a la carretera, amb resultats desastrosos: oli for\u00e7at per retens, vareta d&#8217;oli expulsada i possibilitat de c\u00e0rter buidat en pocs quil\u00f2metres.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e50803e elementor-widget elementor-widget-heading\" data-id=\"e50803e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Versions esportives Gordini: motors 670-05<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-670dafb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"670dafb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-def2fff\" data-id=\"def2fff\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f644b69 elementor-widget elementor-widget-text-editor\" data-id=\"f644b69\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Renault va oferir des de 1957-58 una versi\u00f3 potenciada del Dauphine desenvolupada per Am\u00e9d\u00e9e Gordini. A finals de 1960, va apar\u00e8ixer una evoluci\u00f3 identificada com <g id=\"gid_0\">a Type 670-05<\/g> , de pot\u00e8ncia 40 CV SAE, ~36 CV DI per\u00f2 amb canvis de disseny intern. Pel que fa al <strong>sistema de ventilaci\u00f3 del c\u00e0rter<\/strong> , hi va haver difer\u00e8ncies?  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2aeaf61 elementor-widget elementor-widget-text-editor\" data-id=\"2aeaf61\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>La resposta \u00e9s <strong>s\u00ed<\/strong> , principalment relacionades amb millores en el sistema de retenci\u00f3 de l&#8217;oli al cigonyal del darrere (o sigui el costat de la caixa de canvis).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2fb2f0 elementor-widget elementor-widget-text-editor\" data-id=\"c2fb2f0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Al motor 670-05 (usat des de 1960 a Gordini R1091\/1092, i tamb\u00e9 al R8 base anys despr\u00e9s) es va introduir una modificaci\u00f3 a la part posterior del cigonyal: <strong>un estriat helico\u00efdal \u201ccua de porc\u201d<\/strong> al voltant del mony\u00f3 del darrere, l&#8217;efecte del qual era retornar l&#8217;oli cap al motor per acci\u00f3.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c3f1aa6\" data-id=\"c3f1aa6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5aa3e7d elementor-widget elementor-widget-image\" data-id=\"5aa3e7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Motor Renault Dauphine: Tapa balancins motor 670-05\" data-elementor-lightbox-description=\"Motor Renault Dauphine: Tapa balancins motor 670-05. \u00das de tap tancat confiant la ventilaci\u00f3 al respirador lateral. \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI2MzUsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9kYXVwaGluZV82NzAtMDVfZGVzcGllY2UuMS1zY2FsZWQuanBnIn0%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"659\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-1024x659.jpg\" class=\"attachment-large size-large wp-image-22635\" alt=\"Motor Renault Dauphine: Tapa balancins motor 670-05\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-1024x659.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-300x193.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-768x494.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-1536x988.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/dauphine_670-05_despiece.1-2048x1317.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Motor Renault Dauphine: Tapa balancins motor 670-05. \u00das de tap tancat confiant la ventilaci\u00f3 al respirador lateral. <\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-fc0bc15 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fc0bc15\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6bd949c\" data-id=\"6bd949c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-94cbb53 elementor-widget elementor-widget-text-editor\" data-id=\"94cbb53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Aquest disseny (similar a l&#8217;usat en motors VW i altres d&#8217;\u00e8poca) millorava l&#8217;estanque\u00eftat a la sortida del darrere <strong>reduint fuites d&#8217;oli<\/strong> , encara que seguia sense muntar gu\u00e0rdies de goma. Renault, confiant en aquesta millora, <strong>va eliminar el tap d&#8217;oli ventilat als 670-05<\/strong> , equipant-los amb un tap segellat normal. \u00c9s a dir, al Gordini 670-05 l&#8217;\u00fanica via activa de respiraci\u00f3 era el tub del c\u00e0rter superior (cache-culbuteurs).  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-ae0c228 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ae0c228\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-f52900b\" data-id=\"f52900b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a2159df elementor-widget elementor-widget-image\" data-id=\"a2159df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"cigonyal cua de porc\" data-elementor-lightbox-description=\"Renault Dauphine engine - Cigonyal &quot;cua de porc&quot; per a control de l&#039;oli (versi\u00f3 nova)\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI1MDUsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9jaWd1ZW5hbC1jb2xhLWRlLWNlcmRvLXNjYWxlZC5qcGcifQ%3D%3D\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"652\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-1024x652.jpg\" class=\"attachment-large size-large wp-image-22505\" alt=\"Renault Dauphine engine - Cigonyal &quot;cua de porc&quot; per a control de l&#039;oli (versi\u00f3 nova)\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-1024x652.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-300x191.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-768x489.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-1536x978.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-cola-de-cerdo-2048x1305.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Renault Dauphine engine - Cigonyal \"cua de porc\" per a control de l'oli (versi\u00f3 nova)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-5e6ae61\" data-id=\"5e6ae61\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-22a3a9b elementor-widget elementor-widget-image\" data-id=\"22a3a9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"cigonyal estries\" data-elementor-lightbox-description=\"Renault Dauphine engine - Cigonyal &quot;estries rectes&quot; per a control de l&#039;oli (versi\u00f3 antiga)\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI1MDYsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC9jaWd1ZW5hbC1lc3RyaWFzLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"725\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-1024x725.jpg\" class=\"attachment-large size-large wp-image-22506\" alt=\"Renault Dauphine engine - Cigonyal &quot;estries rectes&quot; per a control de l&#039;oli (versi\u00f3 antiga)\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-1024x725.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-300x212.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-768x544.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-1536x1087.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ciguenal-estrias-2048x1449.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Renault Dauphine engine - Cigonyal \"estries rectes\" per a control de l'oli (versi\u00f3 antiga)<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-d7831a1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d7831a1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7678baf\" data-id=\"7678baf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8bcb2ff elementor-widget elementor-widget-text-editor\" data-id=\"8bcb2ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En teoria, l&#8217;h\u00e8lix \u201ccua de porc\u201d havia de ser suficient per controlar l&#8217;oli i la ventilaci\u00f3 original era suficient.  <strong>Qu\u00e8 podia succeir a la pr\u00e0ctica?<\/strong><\/p>\n<ul>\n<li>Per al respirador, la zona de filtraci\u00f3 oli\/gasos \u00e9s a l&#8217;interior de la tapa de balancins aix\u00ed que una obstrucci\u00f3 per brut\u00edcia no \u00e9s evident de veure. I si aquesta sortida s&#8217;obstrueix, el fet de ser l&#8217;\u00fanica fa que la funcionalitat d&#8217;evacuaci\u00f3 de gasos del c\u00e0rter es vegi seriosament compromesa. <\/li>\n<li>Si per alguna ra\u00f3 en un motor 670-05 es munta un cigonyal antic -nom\u00e9s amb estries rectes que, encara que menys efectiva que l&#8217;espiral queue de couchon o cua de porc per retenir oli \u00e9s t\u00e8cnicament possible-, la ventilaci\u00f3 original pot resultar insuficient.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97d4183 elementor-widget elementor-widget-text-editor\" data-id=\"97d4183\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Justament aix\u00f2 va passar en la restauraci\u00f3 del <a href=\"https:\/\/www.jgclassics.com\/ca\/2025\/10\/18\/el-meu-cotxe-classic-perd-oli-v-problemes-del-respirador-del-motor-i-ventilacio-del-carter\/\" target=\"_blank\" rel=\"noopener\">nostre Gordini fa poques setmanes<\/a> : es va instal\u00b7lar un cigonyal nou d&#8217;estoc antic (tipus estries fines, corresponent a motor 670-04) en un bloc 670-05. El resultat va ser que, tot i el respirador de tapa net, el motor seguia traient una mica d&#8217;oli per la campana d&#8217;embragatge en usos exigents.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56449c9 elementor-widget elementor-widget-text-editor\" data-id=\"56449c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00c9s important esmentar que els sistemes de retenci\u00f3 d&#8217;oli sense retingues de goma basats en mecanitzaci\u00f3 d&#8217;estries o espirals funcionen b\u00e9, per\u00f2 es basen en una premissa: <strong>Les pressions a banda i banda de la paret del c\u00e0rter d&#8217;oli han d&#8217;estar equilibrades.<\/strong> Una sobrepressi\u00f3 far\u00e0 que les estries o espirals es converteixin precisament a la via de sortida.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-b1c9638 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b1c9638\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-560bb7d\" data-id=\"560bb7d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8179d67 elementor-widget elementor-widget-text-editor\" data-id=\"8179d67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>I una soluci\u00f3 \u00e9s afegir la ventilaci\u00f3 que amb aquests cigonyals \u201cantics\u201d d&#8217;estries simples els calia: <strong>reempla\u00e7ar el tap herm\u00e8tic per un tap ventilat per omplir d&#8217;oli<\/strong> , del mateix tipus que feien servir els motors Ventoux anteriors (alguns 4CV, Juvaquatre i Dauphine est\u00e0ndard). Aquest tap especial incorpora un respirador amb reixeta, augmentant el cabal de ventilaci\u00f3 del c\u00e0rter. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-9b240dd\" data-id=\"9b240dd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9fef741 elementor-widget elementor-widget-image\" data-id=\"9fef741\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-scaled.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Tap Renault amb ventilaci\u00f3 (v\u00e0lida per a totes les s\u00e8ries 4CV, Dauphine, Gordini)\" data-elementor-lightbox-description=\"Tap Renault amb ventilaci\u00f3 (v\u00e0lida per a totes les s\u00e8ries 4CV, Dauphine, Gordini). Observar els forats perif\u00e8rics per permetre la sortida de gasos. \" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MjI1MDQsInVybCI6Imh0dHBzOlwvXC93d3cuamdjbGFzc2ljcy5jb21cL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzEwXC90YXBvbl92ZW50aWxhZG9faW50ZXJpb3ItMDEtc2NhbGVkLmpwZyJ9\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-1024x576.jpg\" class=\"attachment-large size-large wp-image-22504\" alt=\"Tap Renault amb ventilaci\u00f3 (v\u00e0lida per a totes les s\u00e8ries 4CV, Dauphine, Gordini)\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-1024x576.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-300x169.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-768x432.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-1536x864.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/tapon_ventilado_interior-01-2048x1153.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-3c61edf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3c61edf\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8733ed6\" data-id=\"8733ed6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d54ba49 elementor-widget elementor-widget-text-editor\" data-id=\"d54ba49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Amb el tap ventilat addicional, el problema de sobrepressi\u00f3 -i &#8216;llan\u00e7ament\u201d d&#8217;oli- al nostre Gordini va desapar\u00e8ixer per complet.De fet, la mateixa Renault va tornar a emprar ambd\u00f3s respiradors en la versi\u00f3 de competici\u00f3 <strong>Dauphine 1093<\/strong> (1962\u201363, ~55 CV), assegurant-se aix\u00ed la m\u00e0xima evacuaci\u00f3 de la vapor. mantenir net el tam\u00eds del respirador i clar el conducte.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-61c207a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"61c207a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a6de99b\" data-id=\"a6de99b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1b7ac3b elementor-widget-divider--view-line_icon elementor-view-default elementor-widget-divider--element-align-center elementor-widget elementor-widget-divider\" data-id=\"1b7ac3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon elementor-divider__element\">\n\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-info-circle\"><\/i><\/div>\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-83af2ee elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"83af2ee\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2a61f88\" data-id=\"2a61f88\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3c23292 elementor-widget elementor-widget-heading\" data-id=\"3c23292\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><p><b>Com comprovar el sistema de ventilaci\u00f3 en un motor Ventoux<\/b><\/p><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-4a12a07 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4a12a07\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-df6e5bb\" data-id=\"df6e5bb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a84fa07 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"a84fa07\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En el seu moment es va atribuir a una possible fissura al c\u00e0rter, a juntes deteriorades o fins i tot a un additiu que dies abans s&#8217;havia afegit per \u201cnetejar\u201d el circuit de lubricaci\u00f3.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa6b63b elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"aa6b63b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol>\n<li><strong>Revisar la tapa de balancins:<\/strong>\n<ul>\n<li>Desmuntar i netejar a fons la c\u00e0mera interior. Pots fer-ho amb benzina i un pinzell o amb un desgreixador de motors potent. <\/li>\n<li>Assegureu-vos que la sortida de 14 mm no estigui obstru\u00efda per dip\u00f2sits antics.<\/li>\n<li>Si el tub t\u00e9 corba o prolongaci\u00f3, cal verificar que no hagi condensat ni oli solidificat a l&#8217;interior.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Verificar el tub lateral del bloc (si n&#8217;hi ha):<\/strong>\n<ul>\n<li>Comprovar longitud i posici\u00f3 (als 4CV: 67 mm des de la base).<\/li>\n<li>Confirmeu que el tub no estigui doblegat ni tapat amb pintura, massilla o brut\u00edcia.<\/li>\n<li>Observar si hi ha restes d&#8217;oli: una lleugera pel\u00b7l\u00edcula \u00e9s normal, degoteig continu no.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tap d&#8217;oli:<\/strong>\n<ul>\n<li>Si \u00e9s del tipus ventilat, netegeu la malla met\u00e0l\u00b7lica interna amb benzina o dissolvent.<\/li>\n<li>Si \u00e9s tancat i no hi ha cap altre respirador actiu del que es tenen sospites, pots substituir temporalment per un ventilat per comprovar si les fuites desapareixen. Ho pots aconseguir <strong><a href=\"https:\/\/recambiosclasicos.com\/producto\/tapon-aceite-tapa-valvulas-renault-4-4-con-filtro-respiracion\/\" target=\"_blank\" rel=\"noopener\">aqu\u00ed (Espanya)<\/a><\/strong> i <strong><a href=\"https:\/\/boutique.techni-tacot.com\/moteur\/1828-bouchon-reniflard-huile-renault-goelette-r2087-fregate-prairie.html\" target=\"_blank\" rel=\"noopener\">aqu\u00ed (Fran\u00e7a)<\/a><\/strong> <\/li>\n<\/ul>\n<\/li>\n<li><strong>Prova pr\u00e0ctica:<\/strong> amb motor a ralent\u00ed posa la m\u00e0 al voltant de les sortides del respirador. Has de notar un \u201ccolpeig\u201d suau i polsant al ritme del motor dels gasos sortint. Si acceleres suaument, no has d&#8217;observar fum.  <\/li>\n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38c9227 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"38c9227\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-12e5f4f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"12e5f4f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0fdc509\" data-id=\"0fdc509\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bb6b3b4 elementor-widget elementor-widget-heading\" data-id=\"bb6b3b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusi\u00f3 t\u00e8cnica<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-2cb1d04 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2cb1d04\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ec5473e\" data-id=\"ec5473e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44e32dd elementor-widget elementor-widget-text-editor\" data-id=\"44e32dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A tots els motors la ventilaci\u00f3 del c\u00e0rter no \u00e9s un detall menor: \u00e9s <strong>part de l&#8217;equilibri din\u00e0mic del motor<\/strong> .<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c23d9c6 elementor-widget elementor-widget-text-editor\" data-id=\"c23d9c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Si observes p\u00e8rdues importants d&#8217;oli o descensos al nivell que no ets capa\u00e7 d&#8217;explicar, considera si el respirador del c\u00e0rter pot ser la causa. Pensa que si hi ha sobrepressi\u00f3, els vapors intentaran escapar-se pel punt m\u00e9s f\u00e0cil o m\u00e9s feble. En el nostre cas van escapar primer trencant una retenci\u00f3 deteriorada, i despr\u00e9s per la sortida posterior del cigonyal.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79b3654 elementor-widget elementor-widget-text-editor\" data-id=\"79b3654\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En el cas de p\u00e8rdues per sobrepressi\u00f3, \u00e9s f\u00e0cil confondre les conseq\u00fc\u00e8ncies amb les causes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-35a65c1 elementor-widget elementor-widget-text-editor\" data-id=\"35a65c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En el cas dels motors Ventoux: Un <strong>tap ventilat net<\/strong> , un <strong>tub de tapa de balancins clar<\/strong> i \u2014si n&#8217;hi ha\u2014 un <strong>respirador lateral calibrat correctament<\/strong> garanteixen la pressi\u00f3 justa al c\u00e0rter i eviten fuites sense necessitat d&#8217;additius ni miracles. Per a qualsevol motor del teu cotxe, et suggereixo que busquis a la documentaci\u00f3 t\u00e8cnica perqu\u00e8 segur que trobar\u00e0s on fer les comprovacions de la respiraci\u00f3 del c\u00e0rter d&#8217;oli. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-section elementor-top-section elementor-element elementor-element-92a99b8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"92a99b8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8a21f9a\" data-id=\"8a21f9a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-353d172 elementor-widget elementor-widget-image\" data-id=\"353d172\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-1024x1024.jpg\" class=\"attachment-large size-large wp-image-22636\" alt=\"\" srcset=\"https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-1024x1024.jpg 1024w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-300x300.jpg 300w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-150x150.jpg 150w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-768x768.jpg 768w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-1536x1536.jpg 1536w, https:\/\/www.jgclassics.com\/wp-content\/uploads\/2025\/10\/ventoux4cv_a-2048x2048.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Al llarg de la vida del motor Ventoux, Renault va adoptar diferents solucions per al respirador dels gasos d&#8217;oli: des de simples taps respiradors amb reixeta, fins a tubs de ventilaci\u00f3 ubicats a la tapa de balancins o al bloc. Tot seguit veurem l&#8217;evoluci\u00f3 hist\u00f2rica d&#8217;aquestes solucions segons les versions del motor. <\/p>\n","protected":false},"author":1,"featured_media":22636,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[495],"tags":[],"class_list":["post-22637","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novetats"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Sistemes de ventilaci\u00f3 del c\u00e0rter als motors Ventoux<\/title>\n<meta name=\"description\" content=\"Al llarg de la vida del motor Ventoux, Renault va adoptar diferents solucions per al respirador del c\u00e0rter: des de simples taps respiradors amb reixeta, fins a tubs de ventilaci\u00f3 ubicats a la tapa de balancins o al bloc. 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