{"id":1302,"date":"2016-06-13T14:57:34","date_gmt":"2016-06-13T12:57:34","guid":{"rendered":"https:\/\/www.oreca-store.com\/blog\/comment-roder-des-soupapes\/"},"modified":"2024-01-10T18:45:49","modified_gmt":"2024-01-10T17:45:49","slug":"comment-roder-des-soupapes","status":"publish","type":"post","link":"https:\/\/www.oreca-store.com\/blog\/tutoriels-cat\/comment-roder-des-soupapes\/","title":{"rendered":"Comment roder des soupapes ?"},"content":{"rendered":"<h2 style=\"text-align: justify;\">Pourquoi roder les soupapes ?<\/h2>\n<p style=\"text-align: justify;\">Les soupapes garantissent la bonne compression et une \u00e9tanch\u00e9it\u00e9 maximale par un remplissage optimum de la chambre de combustion. Un bon contact entre la soupape et son si\u00e8ge assure ainsi de parfaites phases d\u2019admission et d\u2019\u00e9chappement et donc <strong>un rendement et un fonctionnement optimal du moteur<\/strong>. <br \/>Or, lorsque ce dernier a beaucoup tourn\u00e9 ou a \u00e9t\u00e9 utilis\u00e9 de mani\u00e8re intensive, comme c\u2019est le cas dans une pratique sport auto, les port\u00e9es des soupapes et de leurs si\u00e8ges finissent par s\u2019user et n\u2019assurent plus une parfaite \u00e9tanch\u00e9it\u00e9. Cela se caract\u00e9rise par des petits points noirs ou zones d\u2019ombres sur les port\u00e9es. Il en r\u00e9sulte une perte de compression du moteur, ce qui est synonyme d\u2019alt\u00e9ration des performances de votre moteur : acc\u00e9l\u00e9rations difficiles, perte de puissance g\u00e9n\u00e9rale, surconsommation etc. <\/p>\n<p>Si les <a href=\"https:\/\/www.oreca-store.com\/vehicule\/moteur\/pieces-moteur\/soupape-ressort-coupelle-poussoir.html\">soupapes d&rsquo;admission<\/a> ne sont pas toujours l\u2019unique cause de ces probl\u00e8mes, <strong>un rodage s\u00e9rieux va permettre de r\u00e9tablir l\u2019\u00e9tanch\u00e9it\u00e9 de la chambre de combustion<\/strong> et de retrouver la compression initiale du moteur. Plus g\u00e9n\u00e9ralement, le rodage des soupapes doit imp\u00e9rativement s\u2019effectuer apr\u00e8s tout d\u00e9-culassage ou toute op\u00e9ration effectu\u00e9e sur la culasse. De m\u00eame, si vos soupapes sont trop ab\u00eem\u00e9es et que vous d\u00e9sirez les remplacer, sachez qu\u2019il va falloir \u00e9galement roder les soupapes neuves pour les \u00ab r\u00e9-accoupler \u00bb avec leurs si\u00e8ges. <br \/>Cette op\u00e9ration n\u00e9cessite au pr\u00e9alable la d\u00e9pose de votre culasse ainsi que de votre rampe de culbuteur.<\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #ff6600;\">Ce tutoriel du rodage de soupapes a \u00e9t\u00e9 r\u00e9alis\u00e9 sur moteur de R5 GTL<\/span><\/p>\n<p><a href=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3784  aligncenter\" src=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance.jpg\" srcset=\"https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance-300x200.jpg 300w, https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance-640x426.jpg 640w, https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance-285x190.jpg 285w, https:\/\/www.oreca-store.com\/blog\/wp-content\/uploads\/2016\/06\/Photo-ambiance.jpg 650w\" alt=\"Photo-ambiance\" width=\"431\" height=\"287\" data-sizes=\"(max-width: 680px) 70vw, (max-width: 1199px) 40vw, (min-width: 1200px) 650px, 650px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pourquoi roder les soupapes ? Les soupapes garantissent la bonne compression et une \u00e9tanch\u00e9it\u00e9 maximale par un remplissage optimum de la chambre de combustion. Un bon contact entre la soupape et son si\u00e8ge assure ainsi de parfaites phases d\u2019admission et d\u2019\u00e9chappement et donc un rendement et un fonctionnement optimal du moteur. Or, lorsque ce dernier [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[14,7],"tags":[],"class_list":["post-1302","post","type-post","status-publish","format-standard","hentry","category-moteur","category-tutoriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comment roder des soupapes ? 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