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Old 06-26-2022, 04:48 PM   #7
chrs1961815
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Join Date: Jul 2018
Location: Spring Grove, Illinois
Posts: 1,371
Default Re: Water Pump Replacement

The washer is not original and not really needed. The nut needs to be tight to keep the fan from galling the shaft. Whoever did yours did not tighten it nearly enough. You need to make sure you got the key in the keyway and it is on square all the way. Tighten the nut until you can tighten no more. Cotter pin it and it won't ever come loose.
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