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02-17-2014, 09:54 AM
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#1 |
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Registered User
Join Date: Dec 2011
Location: Sapulpa, OK
Posts: 187
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Stupid Belt Noise
I've got a 1962 235, and the belt noise is driving me nuts.
The Crank pulley looks a little wider than the water pump and alternator pulleys. (the belt is farther "down" into the crank pulley) I can squirt a little belt dressing on and it gets silent (heaven!), but only for a minute. The alignment looks right, and the belt is tight. Is there an easy fix? |
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02-17-2014, 11:46 AM
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#2 |
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Registered User
Join Date: Feb 2013
Location: Sapulpa Oklahoma
Posts: 197
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Re: Stupid Belt Noise
I have used a old trick of rubbing bar soap on the belt .
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02-17-2014, 12:02 PM
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#3 |
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Registered User
 
Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
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Re: Stupid Belt Noise
I had the issue slightly when I had the 40+ year old belt still on....I got one of Napa's premium belts and even on cold mornings nothing squeaks. My pullleys are a little narrower I think.
__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw |
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02-17-2014, 01:44 PM
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#4 |
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Registered User
Join Date: Dec 2011
Location: Sapulpa, OK
Posts: 187
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Re: Stupid Belt Noise
I put a new, premium belt on - helped, but not 100%
I'll try the soap - thanks Jim. |
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02-17-2014, 02:53 PM
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#5 |
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Registered User
Join Date: Dec 2013
Location: Oak Ridge, Mo.
Posts: 301
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Re: Stupid Belt Noise
Belt noise can also be caused by the pulleys being worn out. The belt will actually slip as it goes around the pulley no matter how tight the belt is.
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02-17-2014, 04:22 PM
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#6 |
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Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: Stupid Belt Noise
It is likely the pulleys are not compatible. I no longer remember the angles, but the really wide original pulleys may have required a 40 or 45 degree side angle on the belt. I think the newer (thin) belts were pretty standard at 37 degrees (or something close to that). The only permanent cure may be replacing that lower pulley with one that matches the water pump and alternator.
__________________
My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=444502 |
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02-17-2014, 04:23 PM
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#7 |
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Account Suspended
Join Date: Oct 2012
Location: here
Posts: 2,408
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Re: Stupid Belt Noise
Same here....I've learned to love it...sounds like a gear drive cam shaft....increasing in pitch with rpm till eventually it blends in with the sound of a cinderblock wall being pushed thru a hurricane at 70 mph!
Check pully alignment....I tweaked my alternator position with shims and thinning of the bracket tab and eliminated a buncha that whine. |
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02-17-2014, 07:45 PM
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#8 |
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Who Me?
Join Date: Sep 2010
Location: Royal Palm Beach, FL
Posts: 4,067
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Re: Stupid Belt Noise
Make sure all the pulleys are lined up too.
__________________
Steve1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold) |
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02-17-2014, 10:02 PM
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#9 |
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Registered User
Join Date: Jan 2013
Location: Las Vegas, NV
Posts: 1,857
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Re: Stupid Belt Noise
Take the "Shine" out of the pulley with sandpaper or the like. Stop using belt dressing it just makes it slip more.
__________________
1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081 |
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02-18-2014, 08:58 AM
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#10 |
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Registered User
Join Date: Dec 2011
Location: Sapulpa, OK
Posts: 187
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Re: Stupid Belt Noise
Thanks for all the advice!
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