Quote:
Originally Posted by Brentco
I have the exact same problem — squeal starting around 3k rpm, and I too just replaced the fan clutch. I swapped out the standard duty for a heavy duty and did the mod to the bimetallic strip to start it sooner.
I roughed up the pulley grooves a smidge and I’m going to try slightly wider belts.
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So you've dramatically increased the load on the belt, beyond what the fan system was engineered for, and you're wondering why it slips?