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Old 12-11-2002, 06:18 PM
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sounds like maybe one of the pistons galled a skirt, a common problem on rebuilds that have been in storage for years, the oil that the engine was assembled with has migrated somewhere else leaving a dry cylinder dry piston skirt and when you fire it the skirt trys to weld itself to the wall because of no lube. this lets the piston rock at idle and make noise. also check to see if the piston is clearing the crank counterweight and the crank is clearing the windage or oil pan baffle.
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