2008 Harmonic Balancer ?
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
Jay,
You need to do a search here on the Corvette Forum .... There have been many many many posts all about the harmonic balancer.
Look at this: https://www.corvetteforum.com/forums...rchid=71385612
But, to simply answer your question ... Yes, the balancer has been problematic in the LS2 and LS3.
Usually, the first sign is squeeking of the belts ... then it gets worse
_____________________________
BTW ... You have been a member here since way back in 2007 ... I guess you don't spend very much time here anymore ??
.
You need to do a search here on the Corvette Forum .... There have been many many many posts all about the harmonic balancer.
Look at this: https://www.corvetteforum.com/forums...rchid=71385612
But, to simply answer your question ... Yes, the balancer has been problematic in the LS2 and LS3.
Usually, the first sign is squeeking of the belts ... then it gets worse
_____________________________
BTW ... You have been a member here since way back in 2007 ... I guess you don't spend very much time here anymore ??
.
Last edited by Turbo6TA; Jul 28, 2018 at 06:50 PM.
Advanced
Joined: Nov 2017
Posts: 99
Likes: 55
From: Utah
It's a total crap shoot on if your Harmonic Balancer is going to go bad. And if so, when it will happen. "Always" is the wrong word to use. There are plenty of people on here who have changed out the Balancer because it started to squeal the belt (myself included and while my car is a 2005 it only had 20,000 mikes on it when I changed it). Others have put over 130,000 miles on their cars with absolutely no problem.
There is most definitely a large number of LS2 and LS3 motors that have had the Balancer go bad. It was a very weak design. The good news is that it's happened enough that it is very easy to find someone to fix it using a much better designed after market part. I had a independent shop fix mine and it was about $700 out the door parts included.
There is most definitely a large number of LS2 and LS3 motors that have had the Balancer go bad. It was a very weak design. The good news is that it's happened enough that it is very easy to find someone to fix it using a much better designed after market part. I had a independent shop fix mine and it was about $700 out the door parts included.
1st Gear
Joined: Jun 2015
Posts: 1
Likes: 0
The Diamond Embedded Friction Washer butts up against the oil pump gearing once installed. This allows more surface area & increased friction coefficient to spin the HB. This adds to the pinning force of the crank bolt. I believe with ARP parts, it is a 30k lb normal force.
I am assuming GM did this as they went moved away from pinning for manufacturability reasons.
I am assuming GM did this as they went moved away from pinning for manufacturability reasons.
