Best quality V belts?
Thread Starter
Race Director
Joined: Dec 2003
Posts: 14,146
Likes: 936
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
Best quality V belts?
I've got a new set of belts on my 75 and regardless how tight they are I've got one that keeps squealing. Not thinking it's a bad bearing somewhere, it would be consistent and this makes noice only under high RPMs. Who makes a quality belt and would anybody happen to know the part numbers for everything but the A.C. compressor?
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
I will bet you a chili dog, fries and a chocolate shake, it's not the belts no matter which brand you try.
Rust / road grime / fluids, inside each & every pulley groove will do that.
Rust / road grime / fluids, inside each & every pulley groove will do that.
Thread Starter
Race Director
Joined: Dec 2003
Posts: 14,146
Likes: 936
From: Fremont Ca
2022 C4 of the Year Finalist - Modified
They do have surface rust on the exposed areas of the pulleys . I've had the car since 9/22 and might have put 200 miles on it,been apart for most of the time I've owned it. So just short of removing the pulleys and cleaning them up,over time they will eventually clean up.
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
What belts are you using now? I know Gates are what I use for everything. One of the issues with the c3 is that stock belt size is 7/16 and no one makes that anymore. All of the interchange numbers I see are for a 3/8 belt. Some of these 3/8 may sit too far down in the pulley and not ride at the proper position. You may want to consider moving up to a 1/2 belt.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
And then there are the ones ribbed on the inside. Talk about losing half the strength of the belt, half the rubber is gone.
Makes no sense.
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Race Director
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
What belts are you using now? I know Gates are what I use for everything. One of the issues with the c3 is that stock belt size is 7/16 and no one makes that anymore. All of the interchange numbers I see are for a 3/8 belt. Some of these 3/8 may sit too far down in the pulley and not ride at the proper position. You may want to consider moving up to a 1/2 belt.
Advanced
Joined: Aug 2021
Posts: 58
Likes: 24
From: Knoxville TN
I'm running Dayco belts on my 75 L48 without a single bit of noise, squeak or problems.
Alt - 15535
P/S - 15360
AC - no belt at this time but will add in the future when I get the AC operable again.
Of note is the P/S belt that was on the car when I got it was about 3/4" - 1" longer that the 15360 and I couldn't get the top/dipstick out of the P/S pump.as it hit the lower alt bracket.
Good luck
Alt - 15535
P/S - 15360
AC - no belt at this time but will add in the future when I get the AC operable again.
Of note is the P/S belt that was on the car when I got it was about 3/4" - 1" longer that the 15360 and I couldn't get the top/dipstick out of the P/S pump.as it hit the lower alt bracket.
Good luck