Anybody run a fan belt that is not wrapped or a cogged belt. Mine developed a squeak that wasn't consistent with valve train noise nor crankshaft or rods.I have all three fan pulley, crankshaft, and alternator new with about 1500 miles on them. They look new. I never have had luck with the wrapped belts. Any suggestions?
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First, to insure it is the belt that is squeaking, remove it and run the engine to see if that is the problem. If it is, you can use soap or belt dressing to help remove the squeak, or just run the belt a bit looser.You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!
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Already ran it off the engine. Look at the pictures Wiz. It's falling apart. The alternator pulley is just too small diameter for a wrapped belt. I need a cogged belt. I bought one from a place last year online for my truck, a cogged belt and it works perfect.
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I actually have one from the auto parts house, narrower but works fine for my alternator. I just took a string and measured around the pulleys and got 3 different lengths, used the one that fit, took the other 2 back.You wana look waaay far up da road and plan yer route because the brakes are far more of a suggestion than a command!
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Ok, who is your auto parts house? Is it a cogged belt?
I think I found the place I ordered from the last time for my truck. $2.38 each. Shipping is more than the belt. I can't drive to a parts store that has one for that much. I'll post back when I get it and try it out.
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The cog belt is a better choice when running an alternator. The gates # BX40 or BX42 works nice
Fwiw ,,,,i don't like to use any belt soap or dressings as the noise usually gets worse or is temporary at best
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Belts are sold by Car Quest now bought out by Advance Auto Parts here.
These belts are for trucks and are a little wider than some and work well with the wide pulleys on Model A.
The notches allow belt to go around the small pulleys on alternators without damage to belt.
A notched belt is good idea on Alternators as it wraps tighter and slips less I think.
Notched belts use a different number system
Truck and Bus Series made by Gates
This one fits the smaller alternator pulleys ... smaller than the ones on a stock Chevy V8 alternator
Numbers on label are:
TR22425
15A1080
11/16ths by 43-1/8th
They are NOT wrapped and are cut rubber on the part that goes into the pulley groove.
Last edited by benson; 08-07-2017, 12:15 PM.
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Originally posted by DaWizard View PostFirst, to insure it is the belt that is squeaking, remove it and run the engine to see if that is the problem. If it is, you can use soap or belt dressing to help remove the squeak, or just run the belt a bit looser.
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I have used the BX40 with good results for many years. The internal cogs let it curve around the small alternator pully nicely.
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