Re: Balancing an engine at home (Newbie)
Chances are that that the flywheel housing will be radial cracked around the bolt holes, almost every one is..
I don't recall whether or not that I read that you replaced that 4 inch tube that drains oil from they rear main. The engine can leak quite a bit of oil if it's missing (Don't ask me how I know) Also, there is a tiny tack weld that prevents it from turning itself out.
If you have access to a large lathe, turn some weight off that monster flywheel (63 lbs) There are drawings of where the extra stock should be removed. Then have the flywheel professionally balanced. (cost, about $60-80) This will reduce the rotating mass.
Check your compression! Ideally each cylinder should be within a few lbs of the others.
Terry
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