http://forum.lowyat.net/ Sat, 06 Jun 2026 01:24:07 +0800 FeedCreator 1.7.2 http://forum.lowyat.net/topic/2457055 Hi all. <br />browsed for similar topic within lowyat, but nothing.<br />I am wondering if there are services that provide Intake (and Exhaust) valve cleaning here? <br />Particularly blasting it with soft and fine walnut shell to clean the caked-carbon deposited at the valves and area surrounding and vacuuming the debris out...then repeat it on other valves.Just need to open teh intake manifold.<br />BMW&#39;s DI Engine particularly in the 335i and 135i are prone to this issue, and this method is being used by BMW in NA and some EU to physically cleans the gunk out. <!--emo&:hmm:--><img src='http://static.lowyat.net/style_emoticons/default/hmm.gif' border='0' style='vertical-align:middle' alt='hmm.gif' /><!--endemo--> <br />Same can be applied to other DI engines as well.<br /><br />Port and Polish ...maybe polish may help, but would require alot of work.<br />Any info is much appreciated.<br />some pics attached.<br />[attachmentid=2983921][attachmentid=2983922] tmac83 The Fast &amp; The Furious Sun, 05 Aug 2012 06:52:33 +0800