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Old 07-26-2021, 04:14 PM
Fifty150hs Fifty150hs is offline
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Quote:
Originally Posted by cn90 View Post
1+,

- My guess is the belt system, probably some dry pulley bearings...

- Search forum for "Partial cooling overhaul" I wrote a few yrs ago...
+2

Sounds like bearings for the idler and tensioner pullies. Had a similar issue several years ago. Used a stethoscope to pin it down. Replaced the pullies and no more noise.
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