Re: Question on cam gear marks
Russ, one way to be sure the cam timing is correct: With the head off,when any piston is at tdc on the overlap stroke (exhaust valve closing while intake is opening) both valves for that cyl. should be open almost exactly the same amount.
Rotating the engine a bit either way will cause one valve to completely close...rotating the opposite way will cause the other valve to completely close.
This will be correct valve timing no matter what the marks say.
Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick)
'41 Merc Town Sedan / 260" 8CM engine
'66 Fairlane four door / "warmed up" 302
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