C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Pulleys

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Old Jun 25, 2020 | 03:14 AM
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Default Pulleys

My ‘89 is making weird noise when I turn it on, I’ve told it was the pulleys, so I want to hear it from you guys, if you can help me find all the pulleys that I need and good brands, I have an L98 engine, keep me updated guys thank you!
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Old Jun 25, 2020 | 07:33 AM
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Telling you which pulleys you need is something we can't really tell from behind a Keyboard. Someone needs to put an Ear to it, pull the drive belt and feel for looseness and seen if they turn smoothly.
Is your drive belt old and Cracked?

Last edited by s carter; Jun 25, 2020 at 07:36 AM.
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Old Jun 25, 2020 | 04:17 PM
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Originally Posted by s carter
Telling you which pulleys you need is something we can't really tell from behind a Keyboard. Someone needs to put an Ear to it, pull the drive belt and feel for looseness and seen if they turn smoothly.
Is your drive belt old and Cracked?
no but the tensioner pulley is lose, it wobbles, and then the pulley next to the radiator, the previous owner idk what he did but it was welded and it’s a bit pushed back. I don’t know what the problem is I’ve taken it to 3 mechanics and they all say it’s this pulley and that pulley, and I’m just so confused lol hhhhhhhalppp
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Old Jun 25, 2020 | 04:24 PM
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Photos Please

Last edited by s carter; Jun 25, 2020 at 04:33 PM.
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Old Jun 27, 2020 | 02:01 AM
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Have you tried removing the serp. belt and spinning each pully in turn to isolate the sound to one pully?

First off I would tighten or replace the tensioner pully/assembly to eliminate that one as a problem source.

If one pulley does not align with all others it could be a problem with noise and belt wear.
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Old Jun 28, 2020 | 09:38 AM
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Default Pulley

About 20 years ago, there were some guys remaking pulleys with different diameters to lessen the load on the engine to gain free horsepower
i thought it was a little dangerous, since i thought they didnt know what they were doing.
i have probably all the pullies from another car.
it was an 86.
i have a tensioner with a new bearing as well.
hillenger 512@***.net
mention pullies, and maybe we can fix the problem.
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Old Jun 29, 2020 | 01:24 PM
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Originally Posted by coupeguy2001
About 20 years ago, there were some guys remaking pulleys with different diameters to lessen the load on the engine to gain free horsepower
i thought it was a little dangerous, since i thought they didnt know what they were doing.
Under drive pulleys were pretty common and not that dangerous.
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Old Jun 29, 2020 | 03:20 PM
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Which pulley is out of alignment? Tensioner, Power steering. if there is not a close Alignment things can get a little noisy and tare up belts
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Old Jun 29, 2020 | 04:55 PM
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Originally Posted by Jorge Rivas
no but the tensioner pulley is lose, it wobbles, and then the pulley next to the radiator, the previous owner idk what he did but it was welded and it’s a bit pushed back.
None of that sounds right... under drives did not require welding by design. If your tensioner is loose, please tighten it first and make sure the pulley spins smoothly.
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