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Reply to "Rough Start to New Year"

There is no way you can do this without at least partially pulling the engine apart and you should not turn the engine over further unless by hand. You may be lucky and as it's 3" the stud is caught in an intake valve, but as Marlin said the seize was likely due to the piston hitting the valve, so at a minimum expect a bent valve or pushrod and potentially damaged piston and possibly bent rod. Only way to confirm is start pulling it apart. I'd pull the intake and rocker covers first to look in the runners and at the pushrods / rockers and see where it binds turning over by hand.

But honestly that is all just an autopsy attempt, if it were me I'd just pull the engine and strip it down.

Last edited by joules
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