Bad Harmonic Balancer..Need help

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Nov 2, 2009 | 10:27 PM

frc99c5

Thread Starter

Intermediate

Joined: Sep 2009

Posts: 42

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From: St. George Utah

Bad Harmonic Balancer..Need help

So today i noticed a burnt oil smell coming from my car.. i lifted the rear end up..saw no oil leaks at all.. then i figured out my jack wouldnt fit under the front so i started the engine to see if i could see anything anyway...

I saw no oil leaks but i did notice a very slight wobble in the harmonic balancer pulley.. I believe the oil is coming through the bad seal..

Is it better to buy OEM or buy an upgraded pulley? if so which?

ANd how hard is this job to do?

Thanks

Nov 2, 2009 | 10:41 PM

Gray Ghost GS

"AlohaC5" Senior Member

Joined: Jun 2003

Posts: 3,562

Likes: 44

From: Madison, AL

Don't waste your time with another OEM balancer pulley - I had them fail on me too. You want to buy a Powerbond 10% UD pulley. The quality is excellent, reasonable price and will not fail you. I am very happy with mine and I push my vette to the limits on the road courses. Good luck.

Nov 3, 2009 | 01:38 AM

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

The exact same thing happened to me. I let my son drive my ZO6 for 2 weeks upon his return from 15 months in Iraq. When I got it back the ENTIRE bottom of the car was oil soaked.

I was ready to beat some ****.

Then I figured out where the oil was coming from:

Bad timing Cover seal and damper sealing surface.

Nothing that he did to cause it to fail!

Get ya a POWER BOND damper!

You will NOT be sorry! Very quality piece that will withstand a beating!

I love mine!!

BC

Nov 3, 2009 | 07:46 AM

Chris@East Coast Supercharging

Premium Supporting Vendor

Joined: Jan 2001

Posts: 17,681

Likes: 11

From: Central Jersey

Cruise-In II Veteran

Cruise-In III Veteran

Cruise-In V Veteran

Let me know if you have any questions or if you decide to so an under drive pulley we always have them in stock.

Nov 3, 2009 | 08:25 PM

road dog

Burning Brakes

Joined: Aug 2005

Posts: 798

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From: Notorious Miami sunny south florida

power bond fluiddapner on mine I love it

Nov 3, 2009 | 10:55 PM

frc99c5

Thread Starter

Intermediate

Joined: Sep 2009

Posts: 42

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From: St. George Utah

taking it to a mechanic here in town whos worked on vettes for years. No way in hell would i try this project by myself! quote was $430 with everything... reasonable plus ill feel better! there putting back an oem pulley but its warrantied.. ill deal with it again down the road if i have to..

Thanks again everyone for the advice and feedback, you rule

ttyl

Nov 4, 2009 | 10:01 PM

Meech

Advanced

Joined: Apr 2009

Posts: 52

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From: San Antonio TX

I have some wobble as well but no burnt oil smell. Is a little wobble normal? Had a squeak but replaced the tensioner pulley and threw on a gatorback belt. No squeaks now that I can hear but still a little wobble??

Nov 4, 2009 | 10:52 PM

Slow Z06

Le Mans Master

Joined: Oct 2006

Posts: 6,080

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From: Houston TX

if it wobbles, get rid of it. I got a power bond ud pulley, used here. If you get in houston Ill sell it cheap. I got a new stock ratio pulley for my new build