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Old 06-12-2019, 11:13 AM   #3
mfarley
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Join Date: Jun 2017
Location: Bismarck, ND
Posts: 67
Default Re: Help me identify engine noise?

Yes, I've run the engine without the belt. Since it stops when the engine does, running without the belt doesn't usually result in the noise. To chase this, I have run both generator and alternator, two different fan belts, steel fan and aluminum fan, and the water pump is an eighteen months old leakless. I've also spun each of these by hand and no issues. The noise is too low in the engine compartment for me to seriously consider the water pump.
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