by KE4AVB » Tue Jun 10, 2014 9:39 am
gatcoequip wrote:How long has it been since the valves were adjusted. As the engine warms up the OHV engine get tighter.
True that valve clearance close up some as the engine heats up but the OHV engine valve clearance would open up from wear of the push rod and rocker arm over time and clearance would actually be greater if not adjusted in a long time. I have seen OHV engine with so much wear in the valve train that push rods actually fall out.
This is the opposite with L-head engines where these clearances can reduce to zero from wear of the valve face and seat leading to valves not seating fully.
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