Quote:
Originally Posted by rocket1
no problem before changing head? could that exhaust valve be hitting the head for some reason,adjustable lifter no clearance at valve?
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One thing for sure, If it was running with a bent valve that wouldn't close completely it would have had a dead miss that would have been obvious at all times. A bent valve would cause the engine to only run on three cylinders but wouldn't likely cause overheating in itsself unless the engine was straining or lugging. I figure the over heating was caused by expansion of hot pistons that didn't have enough clearance.