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Old 06-09-2019, 02:46 PM   #8
Tom Wesenberg
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Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
Default Re: Two piece crank shaft pulley

The thin wall of the cast iron V is fragile, and I've seen them broken several times by careless handling.
The last engine I bought had a 2 piece cast aluminum pulley, which I planed to keep on the engine and use. I bumped it and broke the V, so I replaced it with a good original cast iron one piece. I feel good with either one or two piece, as long as they are installed correctly and kept tight. The V belt doesn't need to be any tighter than just enough so the fan and generator don't slip.
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