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Old 09-13-2017, 08:39 PM   #33
Chilly178
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Join Date: May 2016
Location: Green Bay Wisconsin
Posts: 28
Re: Any idea on what this knocking is 72 C20 350

Yeah I know the rear main seal leaked probably long before I got it I just kept dumping oil in it.
I'll either get this engine rebuilt or get a built 350 that I know someone has in a Chevelle for 3,000. I'll look into those shims and post back eventually with the lifters out. I might even take the oil pan off if that isn't too hard and check if everything is tight underneath. If anyone else has anymore ideas I would be willing to try them.

Last edited by Chilly178; 09-13-2017 at 09:30 PM.
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