Quote:
Originally Posted by George Bongert
Greetings, Dennis!
It most likely is a valve that is stuck in the open position that is your problem. Continuing to crank the engine over in this case would result in a bent valve, and possible piston damage. It is also possible to have a valve stuck in the closed position, in which case continuing to crank the engine over would result in a bent pushrod. A sticking lifter is highly unlikely, since the lifters on these engines are in a well lubricated area.
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Our engine is a non-interference engine (with either valve fully open it will not touch the piston). If the engine had ever had old gas in it while the engine was running will cause the intake valve(s) to stick. I would pull the valve covers and the rocker arm assemblies. Then rotate the engine by hand. If it turn, then a valve job is in order. If you have the same problem then it something in the cylinder(s).