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Interior and Cockpit
Engine sound inside the cockpit
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<blockquote data-quote="selespeed" data-source="post: 196448" data-attributes="member: 1388"><p><img src="http://www.bmwclubmalaysia.com/forums/C:\Documents and Settings\tan teohen\My Documents\My Pictures\BMW" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p> </p><p>it is likely due to your worn cam, if it is an m40. it is a known problem for seriously worn camshaft. i had the same annoying noise too and can hear the engine "diesel-like" sond through the sterring.</p><p> </p><p>a top overhaul will do. this involves replacing the camshaft, rocker arms, etc... it's worth the effort and the rough engine noise is gone after that.</p><p> </p><p>the rocker arms and lifters are the ones below the cam lobes, "rocking" the valves</p></blockquote><p></p>
[QUOTE="selespeed, post: 196448, member: 1388"] [IMG]http://www.bmwclubmalaysia.com/forums/C:\Documents and Settings\tan teohen\My Documents\My Pictures\BMW[/IMG] it is likely due to your worn cam, if it is an m40. it is a known problem for seriously worn camshaft. i had the same annoying noise too and can hear the engine "diesel-like" sond through the sterring. a top overhaul will do. this involves replacing the camshaft, rocker arms, etc... it's worth the effort and the rough engine noise is gone after that. the rocker arms and lifters are the ones below the cam lobes, "rocking" the valves [/QUOTE]
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