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Replace harmonic balancer

Old Oct 18, 2021 | 02:40 PM
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Default Replace harmonic balancer

So it’s about that time unfortunately at 45k miles 🙃 I’m needing to replace my harmonic balancer but not sure which one to go with. Aiming towards a aftermarket/upgraded version. Any suggestions?
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Old Oct 18, 2021 | 02:44 PM
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Been covered a whole lot, but go with a stock style PowerBond PB1117N or slightly better (and more expensive) PB1117SS. Get an ARP crank bolt too while you're at it.
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Old Oct 18, 2021 | 02:58 PM
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FYI
I have been quoted 1k for this service at a well know corvette repair place and would be using above parts
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Old Oct 18, 2021 | 03:01 PM
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ATI and the ARP bolt
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Old Oct 21, 2021 | 08:09 AM
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I went with the ATI and ARP bolt as well. No more rubber to go bad. I had the oil seal behind it replaced at the same time. It'll save labor cost down the road. My '03 Z only had 11k on it when I got it last year and the balancer already had a slight wobble. The rubber breaks down over time, regardless of miles.

Last edited by slapshot12; Oct 21, 2021 at 08:11 AM.
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Old Oct 21, 2021 | 03:17 PM
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Originally Posted by G_Loc
Been covered a whole lot, but go with a stock style PowerBond PB1117N or slightly better (and more expensive) PB1117SS. Get an ARP crank bolt too while you're at it.
Yup. And a cover seal.
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Old Oct 21, 2021 | 03:32 PM
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That 1k plus quote is enough incentive for me to start ripping it apart myself..it’s not all that hard … With the correct tools ..get a crows foot wrench recommend for the power steering lines

Last edited by Speedy007; Oct 21, 2021 at 03:34 PM.
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Old Oct 26, 2021 | 11:10 AM
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I went with an ASP 25% underdrive balancer, 11 years ago. No issues, although the 25% UD isn't for everyone, especially in the SW, and Southern states. But I'm in Michigan, and in Florida during Winter. Still, I've rarely gone over 205°, even on 90°+ days. If you're insistent on 25% UD, I'd definitely go with a 160° stat, and an aftermarket radiator, like DeWitts or BeCool, or???? Hope this helps......
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Old Oct 26, 2021 | 01:12 PM
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I remember when I got quoted $5,000 for a Harmonic Balancer replacement.

hehehe, what a day that was for me
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Old Oct 26, 2021 | 03:51 PM
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Originally Posted by ArcticWhite98_
I remember when I got quoted $5,000 for a Harmonic Balancer replacement.

hehehe, what a day that was for me
Jeez. Did that include a new engine or something?
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Old Oct 26, 2021 | 03:56 PM
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It is a fair amount of labor hours, but $5k is really taking the **** if a serious quote! I think that's the price you get when they really don't want the job and don't want to learn how to do the job and don't want to deal with a corvette. So, probably not a serious quote.

$1k is probably about right, given the labor involved, if you live in a higher cost-of-living area.

OP: I would recommend you look into "pinning the crank" as well. I would not recommend an under-drive pulley; I think the power gained is relatively small, and not worth doing. That's my 2c. Other than that, most recommend the same ATI part and ARP stud.
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Old Oct 26, 2021 | 05:54 PM
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Basically they tried telling me it was a 30 hour job & that the engine had to come out, I had a bit of a rage about it here on the forums a few months ago.
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Old Oct 26, 2021 | 06:07 PM
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Originally Posted by ArcticWhite98_
Basically they tried telling me it was a 30 hour job & that the engine had to come out, I had a bit of a rage about it here on the forums a few months ago.
Ummmm. No.
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