crankshaft pully/harmonic balancer
Thread Starter
Intermediate
Joined: Jul 2004
Posts: 28
Likes: 0
crankshaft pully/harmonic balancer
My 2001 Vet coupe has 21,000 miles on it. Had it at the dealer for a strange engine noise (which they never did diagnose) and they told me the crankshaft pulley was "wobbling" slightly and would require replacing in the "near future" at $900. Is this a reasonable price?
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
LMAO!... no way is that reasonable!... a brand new pulley is about $70, $5 for a new bolt, and you can buy a puller and install tool for about $100... it isn't a hard job but is a little time consuming... the rack will need to be moved out of the way to get to the crank bolt... now would be a good time to consider a cam and pinning the crank as well
Drifting
Joined: Feb 2008
Posts: 1,596
Likes: 67
From: Bahama North Carolina
My 2001 Vet coupe has 21,000 miles on it. Had it at the dealer for a strange engine noise (which they never did diagnose) and they told me the crankshaft pulley was "wobbling" slightly and would require replacing in the "near future" at $900. Is this a reasonable price?
Melting Slicks
Joined: Aug 1999
Posts: 3,452
Likes: 3
From: Spring, TX
Depends upon what your dealership charges per hour for labor. Parts are a couple hundred bucks.
It's a common problem on the ls1.
Don't replace with a stock part. Aftermarket is the way to go. The wobble is caused by the rubber layer separating from the hub and the outer ring starting to move.
If you ever thought of doing cam on the car now is the time. You have pull a lot off the car to get to it. It's a big job if you are not mechanically inclined.
It's a common problem on the ls1.
Don't replace with a stock part. Aftermarket is the way to go. The wobble is caused by the rubber layer separating from the hub and the outer ring starting to move.
If you ever thought of doing cam on the car now is the time. You have pull a lot off the car to get to it. It's a big job if you are not mechanically inclined.
Race Director
Joined: Apr 2007
Posts: 19,688
Likes: 523
From: Ideals are peaceful...History is violent...St.Charles, MO.
2020 Corvette of the Year Finalist (appearance mods)
C5 of Year Winner (appearance mods) 2019
St. Jude Donor '08-'09-'12 thru'22
Don't replace with a stock part. Aftermarket is the way to go. The wobble is caused by the rubber layer separating from the hub and the outer ring starting to move.
If you ever thought of doing cam on the car now is the time. You have pull a lot off the car to get to it. It's a big job if you are not mechanically inclined.
$900 sounds like the stealership. As previously mentioned, a good 'Vette shop or a 'Vette guru in your area will save you hundreds.
When you do this do it right, a good SLP or Powerbond pulley with an ARP bolt. Also remember that you will need to purchase a new drive and accessory belts. Good luck
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Age wise, It may very well need done. My 99's failed at 70k miles. But $900 is very steep. I paid $750 to have an ATI installed AND pinned to the crank. The pinning is around $100-150 itself in labor.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
I even think $100-150 to pin the crank is still way too high unless that includes the price of the kit... a pin kit for stock balancers is about $75 and for your ati is prob around $120... in my opinion they shouldn't charge any extra labor (only for parts) to pin it once they are in there, it takes just a few mins to do... pinning is where you drill a small hole into the end of the crank/balancer... half of the hole is in the crank area and the other half in the balancer and you insert a small pin into that hole which prevents the balancer from spinning on the crank... it is mandatory if you ever supercharge the car so its a good idea to do it while you have the chance because it can save you a lot of time in the future... and a cam swap is also a good idea because removing the balaner is a great deal of what is involved with a cam swap
Melting Slicks
Joined: Mar 2008
Posts: 2,453
Likes: 347
From: SC
Just curious, and this may be off this topic, but how many higher mileage c5's out there that haven't had a failed balancer? And how many miles and still good? 77,000 on my original and no problems.
Let's here it!
Let's here it!
5th Gear
Joined: Jul 2013
Posts: 5
Likes: 0
From: IN
I have a 2001 vert with 80k and it started making a vibration that comes and goes like a sine wave at 70+MPH. It is not an extremely noticeable vibration, but it is there. The car has new tires and rims. I am going to take a look at this damper tonight to see if it is a possible source of my problem. If it looks ok, then I will have the wheels and tires rebalanced.