Quote:
Originally posted by Jeff Higgins
Stuck valve? Broken timing chain or stripped cam gear (I think they have plastic teeth)? Pull the valve covers and see if they all open and close. The "rat-a-tat-tat" of that impact gun might have done something to the timing chain. Unlike turning it over by hand now, it probably has enough oomph to keep turning past valves hitting pistons. That would make it very ugly inside that 350. Hopefully it's something more innocuous than that.
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Excellent suggestion, I'm forgetting that I'm dealing with a single large timing chain here. I'll pull the valve covers off tonight after I get home. And honestly if the engine is shot, I'll part this thing out, it was left to me by my brother before he disappeared. It's been sitting in my garage for years and the wife wants it out.