Harmonic Balancers
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10 Second Club
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Harmonic Balancers Hi there to you all
i have been having some srange vibration in my vette a 2002 Z06 and my mecanic is telling me it is from the Harmonic Balancers and i need to change it if so ,
has any one had the same semptoms vibration from 3000 to about 3800 RPM , any recomendations on what to chick what to look for ?
and what damper would you recomend ??
thanks for your help guys
i have been having some srange vibration in my vette a 2002 Z06 and my mecanic is telling me it is from the Harmonic Balancers and i need to change it if so ,
has any one had the same semptoms vibration from 3000 to about 3800 RPM , any recomendations on what to chick what to look for ?
and what damper would you recomend ??
thanks for your help guys
11 Second Club
Joined: Jun 2005
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From: Was New Orleans, but swam to Baton Rouge
Over on the Z06 board my friend had this problem cause by two things. The clutch was out of balance and the drive shaft was warped as well. I would expect those two items to fail before a balancer.
Teching In
Joined: Dec 2005
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From: Waveland, MS
Originally Posted by sultan(ZR-1)KSA
Hi there to you all
i have been having some srange vibration in my vette a 2002 Z06 and my mecanic is telling me it is from the Harmonic Balancers and i need to change it if so ,
has any one had the same semptoms vibration from 3000 to about 3800 RPM , any recomendations on what to chick what to look for ?
and what damper would you recomend ??
thanks for your help guys
i have been having some srange vibration in my vette a 2002 Z06 and my mecanic is telling me it is from the Harmonic Balancers and i need to change it if so ,
has any one had the same semptoms vibration from 3000 to about 3800 RPM , any recomendations on what to chick what to look for ?
and what damper would you recomend ??
thanks for your help guys
If you have a stock clutch, and you plan to do any major mods to the car, you may think about changing the clutch anyway. Now, since you have the LS6 clutch, this may not be as necessary as the crappy C5 clutch, but you may want to think about it. Reason being, if you plan to change the clutch anyway, you can change that first to eliminate the problem. If I had to guess what would cause a vibration first out of the crank pulley (harmonic balancer), crank, or flywheel/clutch assembly, I would have to say it is the clutch. The balancer is a little easier to change, but not by much over the clutch.
Tip, if you do change the balancer, make sure you pin it. A&A corvette will sell you the pinning kit. I used the pinning tool to set my new balancer and make the jig for the pin to insert through. It was money well spent.
Thread Starter
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Joined: Jun 2004
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Originally Posted by newgene
That doesn't sound like a balancer. It really does sound like a clutch. Is it an M12 transmission? Have you had any clutch work done? Either way, if a flywheel bolt loosened up, it could do that. I would take it to a different mechanic. You should be able to inspect the balancer while running to see if the runout is correct. Changing the balancer is a heck of a job on the vette because the steering rack is in the way. I just changed mine, and it is a bear. The balancer usually doesn't go out like that. Mine actually delaminated and started to come off of the rubber hub. I believe that is common for these cars.
If you have a stock clutch, and you plan to do any major mods to the car, you may think about changing the clutch anyway. Now, since you have the LS6 clutch, this may not be as necessary as the crappy C5 clutch, but you may want to think about it. Reason being, if you plan to change the clutch anyway, you can change that first to eliminate the problem. If I had to guess what would cause a vibration first out of the crank pulley (harmonic balancer), crank, or flywheel/clutch assembly, I would have to say it is the clutch. The balancer is a little easier to change, but not by much over the clutch.
Tip, if you do change the balancer, make sure you pin it. A&A corvette will sell you the pinning kit. I used the pinning tool to set my new balancer and make the jig for the pin to insert through. It was money well spent.
If you have a stock clutch, and you plan to do any major mods to the car, you may think about changing the clutch anyway. Now, since you have the LS6 clutch, this may not be as necessary as the crappy C5 clutch, but you may want to think about it. Reason being, if you plan to change the clutch anyway, you can change that first to eliminate the problem. If I had to guess what would cause a vibration first out of the crank pulley (harmonic balancer), crank, or flywheel/clutch assembly, I would have to say it is the clutch. The balancer is a little easier to change, but not by much over the clutch.
Tip, if you do change the balancer, make sure you pin it. A&A corvette will sell you the pinning kit. I used the pinning tool to set my new balancer and make the jig for the pin to insert through. It was money well spent.
Thanks for the reply
I do have a spec3+ cluch one the car could that be the reason i am geting the vibration ?
i dont have any one to blance but i will check for loose bolts
Also, look at the balancer and see if it is wobbling. The balancer also tends to cause issues with the belt, check the belt for any different wear. When did they put in the clutch, did this start long after the clutch was in the car?
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11 Second Club
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From: Was New Orleans, but swam to Baton Rouge
Originally Posted by sultan(ZR-1)KSA
Thanks for the reply
I do have a spec3+ cluch one the car could that be the reason i am geting the vibration ?
i dont have any one to blance but i will check for loose bolts
I do have a spec3+ cluch one the car could that be the reason i am geting the vibration ?
i dont have any one to blance but i will check for loose bolts
http://www.zo6vette.com/forums/showt...=105724&page=3
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TECH Senior Member
Joined: Apr 2004
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From: Texas
ill be putting a ati super dampener from thunder
http://www.thunderracing.com/catalog...vid=7&pcid=112
but i dont think thats your problem. i would start with the clutch
http://www.thunderracing.com/catalog...vid=7&pcid=112
but i dont think thats your problem. i would start with the clutch
Teching In
Joined: Dec 2005
Posts: 23
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From: Waveland, MS
Actually, take a close look at the balancer. Put a new one next to it if you have to. If the outer race is starting to delaminate from the rubber hub like mine did, it may throw you out of balance. Probably not, but it may. The outer race should flush with the edge of the rubber across the front face of the pulley. I don't have it in front of me, but if it starts to come off, it will almost be right against your steering rack. But then again, it probably has less than a half inch between the two anyway.
