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

Pulleys

Thread Tools
 
Search this Thread
 
Old Jun 25, 2020 | 03:14 AM
  #1  
Jorge Rivas's Avatar
Jorge Rivas
Thread Starter
8th Gear
 
Joined: Jul 2019
Posts: 8
Likes: 0
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!
Reply
Old Jun 25, 2020 | 07:33 AM
  #2  
s carter's Avatar
s carter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2014
Posts: 2,891
Likes: 591
From: New Port Richey FL
Default

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.
Reply
Old Jun 25, 2020 | 04:17 PM
  #3  
Jorge Rivas's Avatar
Jorge Rivas
Thread Starter
8th Gear
 
Joined: Jul 2019
Posts: 8
Likes: 0
Default

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
Reply
Old Jun 25, 2020 | 04:24 PM
  #4  
s carter's Avatar
s carter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2014
Posts: 2,891
Likes: 591
From: New Port Richey FL
Default

Photos Please

Last edited by s carter; Jun 25, 2020 at 04:33 PM.
Reply
Old Jun 27, 2020 | 02:01 AM
  #5  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default

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.
Reply
Old Jun 28, 2020 | 09:38 AM
  #6  
coupeguy2001's Avatar
coupeguy2001
Le Mans Master
15 Year Member
 
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
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.
Reply
Old Jun 29, 2020 | 01:24 PM
  #7  
KyleF's Avatar
KyleF
Drifting
Liked
Loved
Community Favorite
 
Joined: Jun 2018
Posts: 1,678
Likes: 229
From: Michigan
Default

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.
Reply
Old Jun 29, 2020 | 03:20 PM
  #8  
s carter's Avatar
s carter
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2014
Posts: 2,891
Likes: 591
From: New Port Richey FL
Default

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
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jun 29, 2020 | 04:55 PM
  #9  
KyleF's Avatar
KyleF
Drifting
Liked
Loved
Community Favorite
 
Joined: Jun 2018
Posts: 1,678
Likes: 229
From: Michigan
Default

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.
Reply

Get notified of new replies

To Pulleys





All times are GMT -4. The time now is 04:13 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE