digipalms Posted January 28, 2009 Share Posted January 28, 2009 Hi all I have the p90 head and ready to put on my engine. However I can not adjust the cold valve clearance on both intake and exhaust on the head specially the one on the middle of the head. There is no clearance at all with the valve rocker pivot turn all the way down. Does it mean my head trash or what ? thans Quote Link to comment Share on other sites More sharing options...
1 fast z Posted January 28, 2009 Share Posted January 28, 2009 Sunk valves, too thick of lash pad. Quote Link to comment Share on other sites More sharing options...
TimZ Posted January 28, 2009 Share Posted January 28, 2009 Somebody else had a similar dilema not too long ago... http://forums.hybridz.org/showthread.php?t=141159&highlight=sunk+valves Quote Link to comment Share on other sites More sharing options...
digipalms Posted January 28, 2009 Author Share Posted January 28, 2009 Thanks for reply. Can I just shim the cam towers and run like that. Quote Link to comment Share on other sites More sharing options...
jc052685 Posted January 28, 2009 Share Posted January 28, 2009 that will affect your cam timming Quote Link to comment Share on other sites More sharing options...
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