Harmonic balance wobble
Race Director
Joined: Dec 2005
Posts: 11,393
Likes: 984
From: Carlsbad Ca
They don't make much noise, but they're easy to examine, if you lean over the passenger fender and watch it, when the engine is running. If you see it move at all, then it's not a bad idea to replace it with a quality aftermarket unit. (An "underdrive" unit isn't advised if you want you're A/C to be as good as it was previously.)
If you replace it with an OEM unit, expect to replace it again, down the line.
If you replace it with an OEM unit, expect to replace it again, down the line.
Team Owner
Joined: May 2000
Posts: 53,888
Likes: 5,654
From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
If I was you, get it check, mind made whining noise, sorry to say ignored till decided to do thousand of dollars to damage, destroying my A/C compressor crank pulley lot more.
Get it checked if asked you must be concerned so get it checked for peace of mind.
Get it checked if asked you must be concerned so get it checked for peace of mind.
Retired & lovin' it!
Joined: Mar 2005
Posts: 4,475
Likes: 549
From: Jackson NJ
Replacement of the HB by a reputable Corvette specialty shop runs around $2K to $2.5K...at least here in the NJ area. Make a counter offer to discount by that amount. If the wobble is obvious, as it sounds lie it is, you will need to have the replacement done. And DO NOT use the GM OEM pulley....use PowerBond or ATI.
Team Owner
Joined: May 2000
Posts: 53,888
Likes: 5,654
From: Plantation Florida USAF(Retired) 1966-1990
U.S. Air Force
St. Jude Donor '05 thru '26
NCM Sinkhole Donor
I would pass, or have them replacement part, cause more then likely when a tech gets into, he will find more problems then simple costly replacement.
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