Harmonic Blancer
Racer
Joined: Oct 2012
Posts: 335
Likes: 7
I want to hear from somebody, anybody, who has personally had an HB actually fail on a stock LS2/LS3. We are all out there replacing our HB's like *****'s, and more than half the people who own C6's don't even know what it is, where it is, or what it does. They just drive on, miles upon miles, and we never here of a single incident from anyone it personally happened to.
I'm not being contrary, but I have yet to read of one, single, failure on a stock LS2/3. Have we unnecessarily created a cottage industry of HB replacement???
I'm not being contrary, but I have yet to read of one, single, failure on a stock LS2/3. Have we unnecessarily created a cottage industry of HB replacement???
Melting Slicks
Joined: Mar 2016
Posts: 3,189
Likes: 145
From: the island of misfit toys
Windy, that is exactly my point/question. Everyone says they had their "defective" HB replaced, some say it "failed" and was replaced. But, I would think there would be a quantifiable definition of allowable runout before the part has reached "failure". Up to this point, "wobbling" is the defining term....pretty vague.
I heard chirping a couple of weeks ago, which gave me a clue.
I've read that the A/C unit is linked to all this, and it gets hot here.
7th Gear
Joined: Jun 2016
Posts: 7
Likes: 0
From: Colorado
I had mine replaced under used car limited warranty. I asked if they would replace the HB with an aftermarket I purchased and they said no because they can't warranty the aftermarket HB. Unfortunately, the "new" HB wobbles just as much, if not more. The belts aren't chirping yet, but I'm sure it's a matter of time. Has anyone had a "run-out" test performed on the crankshaft when new HBs don't correct the wobble problem?
