Quote:
Originally Posted by norcalal
Model a engine had a rattle starting with just medium throttle in second gear. Center main was over .003 then, brought it to.015, spun fine, I took a shim out of one side of the rear main, now extremely hard to crank, but starter will turn it freely. PlastIguage shows .015. don't want to burn up a bearing, should I reassemble with too much clearance according to specs? Please advise!! thank you
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If you want to be safe from a slightly tight bearing, pull it around the block a time or two.
Water and oil in, gas off, and spark plugs out.
High gear, and about 15 miles an hour, never more.