LS2 damper
Thread Starter
Drifting
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
LS2 damper
The crank pully was wobbling on my 07' LS2 so I brought it back to the stealership and they replaced the damper but the crank pully is still wobbling (not oscilating but front and back movement less than an 1/8") is this normal? The tec(I use this term loosely) had to borow a puller from another dealer to get the job done, and said that it is rubber on metal and will never be perfect. My buddy has an 06' GTO and his crank pully is dead nuts straight. Did GM do something different in 07'?What do I do? I am planning on using an AnA blower in the near future.
Melting Slicks
Joined: Jan 2005
Posts: 2,326
Likes: 5
From: louisville "derby city" kentucky
it should be running dead true. if you are going to install a blower, you are going to have to go back and pull the balancer and pin the crank. i would suggest getting a aftermarket balancer and a arp crank bolt. good luck 
Melting Slicks
Joined: Mar 2008
Posts: 2,835
Likes: 5
From: Avon Park FLORIDA
St. Jude Donor '08-'09-'10
dead true!!They scammed you
a new balancer will not wobble at all
I would try another dealer and ask them what can be done
If doing a Sc you should pin it and ARP bolt for sure
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
If you are doing a supercharger, go ahead and put an SFI rated pulley on it. I keyed the stock pulley and left it on mine. I threw a belt one day and it turned out that I had spun the outer half of the pulley on the inner half (which couldn't spin because it was pinned) where the rubber is. The outer half moved forward about 1/4" which messed up the alignment on the belts.
Pro
Joined: Sep 2007
Posts: 747
Likes: 0
From: S. Jersey .............. Low 11sec club
St. Jude Donor '11
Thread Starter
Drifting
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Im gonna put a dial ind. on the inside belt rib tomorow and if it is out of GM's loos **** specs ,im gonna freak on the stealer ship that has had this car in the garage twice for this. Who can I call if they keep trying to send me home with a busted car? the Better buisness bureau? Is there a place to call for crap dealers?
ps. the reason I am using this dealer is because I just bought the car from them about a month ago and I dont want to spend the $100 ded. for a pre existing prob.
ps. the reason I am using this dealer is because I just bought the car from them about a month ago and I dont want to spend the $100 ded. for a pre existing prob.
Last edited by 383; Mar 30, 2011 at 10:42 PM.
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Thread Starter
Drifting
Joined: Jun 2010
Posts: 1,944
Likes: 48
From: CT
Ok so I zip tied the dial ind. to the thermostat housing(crappy magnet wont stick to alum?!?) but I dont have a scoket small enough to get inbetween the rack to turm the crank! When I spin the alt. pully the belt just slips! Who sells a short scoket? Maby ill just cut a crappy one down 1/4". Thoughts?
Thanks
Chris
Thanks
Chris
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
Not true. New harmonic balancers will routinely exhibit some runout. I've installed them and seen it myself. Or go to a dealer, fire up several new C6s and check out the pulleys at idle - some are better than others.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Burning Brakes
Joined: May 2007
Posts: 934
Likes: 0
From: jax fl
damper
don't mean to hijack your thread, but i was just about to start a new thread on this, so my ls2 has a vibration at 2k rpms and looking at the crank i can see a wobble. as my car is head and cam should i just go with a ATI damper and what part # is recommended from ATI, as i will be adding a blower this summer thank's.
