Harmonic Blancer
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
Another very good HB ...
Dayco 'PowerBond' Harmonic Balancer
P/N: PB1117SS
$ 222.97 Shipped
https://www.summitracing.com/parts/p...model/corvette
Personally, I wouldn't go through all the trouble replacing it until it actually starts to wobble ... Some engines will go forever without a problem, while some balancers will fail early in life (it's a crap shoot).
Dayco 'PowerBond' Harmonic Balancer
P/N: PB1117SS
$ 222.97 Shipped
https://www.summitracing.com/parts/p...model/corvette
Personally, I wouldn't go through all the trouble replacing it until it actually starts to wobble ... Some engines will go forever without a problem, while some balancers will fail early in life (it's a crap shoot).
Race Director
Joined: Mar 2011
Posts: 13,262
Likes: 3,151
From: SW Florida
2021 C6 of the Year Finalist - Modified
That would be a good time to replace the HB with a quality aftermarket HB.
The HB has to be removed anyway in order to replace the camshaft.
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
Mine is wobbling a little. (Relative term). I'm under warranty but don't know if they will replace it simply because it's wobbling. However if I wait for it to cause major damage (assuming it will someday) then they will have to replace much more than the HB.
Not to hijack the OP's thread but has anybody had it replaced under warranty simply because it wobbles a bit? I'm sure many techs would simply say "yeah, they all do that!"
Also if they do replace it can I upgrade to a better aftermarket unit and pay the difference?
Not to hijack the OP's thread but has anybody had it replaced under warranty simply because it wobbles a bit? I'm sure many techs would simply say "yeah, they all do that!"
Also if they do replace it can I upgrade to a better aftermarket unit and pay the difference?
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
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Drifting
Joined: Nov 2017
Posts: 1,327
Likes: 582
From: Conway South Carolina
Burning Brakes
Joined: Jan 2017
Posts: 1,122
Likes: 199
From: TX
If it's wobbling, you'll see it.
I paid $250 for the TrickFlow balancer with Continental belts and a $10 GM crank bolt.
I paid ~$800 for installation
Le Mans Master
Joined: Sep 2014
Posts: 7,001
Likes: 988
From: lake havasu city arizona
Another very good HB ...
Dayco 'PowerBond' Harmonic Balancer
P/N: PB1117SS
$ 222.97 Shipped
https://www.summitracing.com/parts/p...model/corvette
Personally, I wouldn't go through all the trouble replacing it until it actually starts to wobble ... Some engines will go forever without a problem, while some balancers will fail early in life (it's a crap shoot).
Dayco 'PowerBond' Harmonic Balancer
P/N: PB1117SS
$ 222.97 Shipped
https://www.summitracing.com/parts/p...model/corvette
Personally, I wouldn't go through all the trouble replacing it until it actually starts to wobble ... Some engines will go forever without a problem, while some balancers will fail early in life (it's a crap shoot).
So I bought mine from Rock Auto, little more pricey but it was perfect, FYI I'm sure it has been corrected by now as this was about 4 months ago
NSF
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
Burning Brakes
Joined: Jan 2017
Posts: 1,122
Likes: 199
From: TX
Drifting
Joined: Oct 2007
Posts: 1,388
Likes: 19
From: Chicago, IL
Racer
Joined: May 2017
Posts: 478
Likes: 105
From: Diamond Bar Ca.
So I've heard but I've tried from that side and can't see it. Mine is only visible from the drivers side. And clearly so. 2010 GS. I dunno'.
Maybe what I'm thinking is the HB is clearly some other pulley and my HB is completely wobble free, as anything I see from the passenger side is running true. It is only the lower left pulley only visible from my drivers side that wobbles. If it isn't the HB then what is it?
Maybe what I'm thinking is the HB is clearly some other pulley and my HB is completely wobble free, as anything I see from the passenger side is running true. It is only the lower left pulley only visible from my drivers side that wobbles. If it isn't the HB then what is it?
Last edited by danzio56; Dec 5, 2017 at 03:42 PM.
Burning Brakes
Joined: Apr 2016
Posts: 1,120
Likes: 110
From: Chattanooga TN
I have a powerbond 25% Underdrive for sale PBU1117SS25 like new. Will for the GS auto and the base C6 wet sump. Will not fit the GS 6-speed dry sump. $160 shipped
Last edited by jaybee924; Dec 5, 2017 at 04:06 PM.
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario