Harmonic Balancer
Le Mans Master
Joined: May 2015
Posts: 5,187
Likes: 1,216
From: Las Vegas Nevada
Burning Brakes
Joined: Jan 2008
Posts: 1,226
Likes: 7
From: Wailuku Hawaii
Wobble Gone!.........for now?????
Just got mine replaced last week at the dealership here, not much of a choice, having a few health issues recently so can't tackle myself, the belt churps were really irritating, so got it done. Car is running fine, only problem is, I asked that the mechanic give me all the replaced parts, I got the original H.B., and the washer, I did not receive the original balancer bolt. Not a warm and fuzzy feeling here. I was warned by a few members here not to take it to the dealer, GM will use the same H.B. that failed originally and there is a good chance I will have to do this over again. If the GM mechanic reused the original bolt then there is a definite chance that the already stretched bolt will fail. I voiced my concern with the service adviser and she stated that it was added to my service history in case of a future failure, oh by the way it's only covered for one year. 
Sorry for all that have to go thru this, still love the car, not a fan of GM's customer service, as stated by someone earlier, will probably be buried in this car, won't buy another one anytime soon, 
Sorry for all that have to go thru this, still love the car, not a fan of GM's customer service, as stated by someone earlier, will probably be buried in this car, won't buy another one anytime soon,
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
Wondering here, where oh where is that GM Customer service person that posts in some of our threads once in a while, where indeed 
Just leaves a bad taste in your mouth ya know. I love my Vette but boy this problem STINKS and GM knows it, does nothing
NSF
Just leaves a bad taste in your mouth ya know. I love my Vette but boy this problem STINKS and GM knows it, does nothing
NSF
Melting Slicks
Joined: Mar 2012
Posts: 2,074
Likes: 294
From: Texas
Originally Posted by tri08sbc
I'm planning on having mine replaced. If I get the ATI and the ARP bolt, what else do I need for install not including tools ?
Be sure and COMPLETELY remove all oil residue from where the seal goes in or it will leak.
Melting Slicks
Joined: Mar 2012
Posts: 2,074
Likes: 294
From: Texas
Originally Posted by tri08sbc
Thanks. So it's just clean oil residue, ATI HB, and ARP bolt ?
And even tho he was carefull to clean seal it just did not take. I guess the seal "burns" on to the block when Vette is started. So i had to take back to him to have another seal. Just wanted to let you know about that...
The ATI and ARP bolt is reuseable where the stock one is not.
Last edited by choppychop; Mar 19, 2017 at 09:22 AM.
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Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
if having your hb changed and you don't do it yourself mark the hb bolt so you will know that it has been done.mark the balancer also and you will know if the bolt has loosened
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
I will mark them both thou 
NSF
Last edited by Not So Fast; Mar 19, 2017 at 11:13 AM.
Pro
Joined: Jul 2012
Posts: 539
Likes: 86
From: Newington CT
Hb
My advice is that if you think you have a HB problem start looking now for the part. When I took my 06 w/45k miles out of storage last year and discovered the HB problem everybody was out including GM. JEGS was 4-6 weeks out and Summit was 2 weeks out. I ordered one from Summit and was told they had 45 on order and I was 14th on the waiting list! Good luck, Ron
Pro
Joined: Jul 2012
Posts: 539
Likes: 86
From: Newington CT
YES, here's what I had done: Balancer supplied by me, bolt, seal, washer, tensioner and both serpentine belts. I used the Summit SUM-C2501 balancer recommended by the mechanic at the Chevy dealership.
Racer
Joined: Mar 2012
Posts: 295
Likes: 13
How difficult is it to remove the seal with the cover on? Of course it's not a bad idea, but the might as well" thought process never ends. If you pull the cover, check the/swap the chain too? Etc..etc
I would just swap the balancer unless the seal is currently leaking. Don't fix it if it ain't broke
I would just swap the balancer unless the seal is currently leaking. Don't fix it if it ain't broke
Pro
Joined: Jul 2012
Posts: 539
Likes: 86
From: Newington CT
How difficult is it to remove the seal with the cover on? Of course it's not a bad idea, but the might as well" thought process never ends. If you pull the cover, check the/swap the chain too? Etc..etc
I would just swap the balancer unless the seal is currently leaking. Don't fix it if it ain't broke
I would just swap the balancer unless the seal is currently leaking. Don't fix it if it ain't broke