WE PULLED THE HEAD TODAY. CYL. 3&4 HAVE BURNED EXHAUST VALVES. THIS IS AFTER A FAIRLY LONG DRIVE. 200 MILES THROUGH HILLS IN NORTHERN CALIFORNIA. SO THIS ENGINE WAS PUT THROUGH ITS PACES. IM WONDERING WHAT WOULD CAUSE THIS KIND OF UPPER CLYNDER HEAT.? AIR MASS...

FIX posted 7/26/2010

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