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Corvette Forum Archive (38 950 posts)
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Subject:
Re: Bad Harmonic Balancer
Date: Mon, 09 Jan 2006 19:55:57 -0800
From: Crabs <IHateSpam(at)SpamSucks.com>
Subject: Re: Bad Harmonic Balancer
Lines: 38
NNTP-Posting-Host: 24.2.59.142
________________________________________________
Steve:
> I reported in earlier posts that my belts on my `98 C5 were squeaking. I
> took it to a friend`s shop and he found that the rubber in the harmonic
> balancer is all worn and wobbling. He said the belts are old and dry too.
> The job is going to cost $679 total, new belts and all. He said it`s a 4
> hour job to get the harmonic balancer changed. Does that sound about right?
Seems about right. It`s a rats nest of pipes, hoses, belts, and god
knows what in front of the LS1, and there`s little to no room to get at
anything. All the accessories probably have to come off of the front of
the motor to access the harmonic balancer, and maybe even the radiator
and cooling hoses, can`t really tell from the pictures I`ve found.
Regardless, there`s a lot to be moved around just to get a hand down to
the area of interest.
>
> What gets me is that I just had the car at the dealer and they replaced two
> tensioners. They said it needed new belts to stop the squeaking. Why didn`t
> they spot the bad harmonic balancer? Can I get away with not replacing it?
> What happens when one fails?
It`s kind of hard to see from the top, maybe easier from the bottom.
It`s not something that usually fails. Before I`d let them work on it
I`d check to see if there`s any TSB`s out on it.
To be quite honest, I smell a rat. I`ve owned quite a few cars over the
years (and most were GM, but not all...) and I`ve NEVER had a harmonic
balancer go bad.
Now, I`m not saying that it doesn`t happen. It seems to be a common
failure on newer Mercedes (went surfing the NG`s via Google). Didn`t see
anything on LS1 HB`s, so I doubt it a big failure item.
Get a second or third opinion.
What happens if it fails completely? As it wobbles it`ll chew up the
front of the motor including timing chain cover & seal, as well as maybe
the lower pulley and serpentine belt. It could conceivably cause timing
chain problems and maybe even early crankshaft failure.
Good luck!
TomC
`90 ZR1 #792
>
Subject: Re: Bad Harmonic Balancer
From: "Steve Horrillo" <usenet(at)stephenhorrillo.com>
Lines: 30
Date: Tue, 10 Jan 2006 05:30:59 GMT
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On 9-Jan-2006, Crabs <IHateSpam(at)SpamSucks.com> wrote:
> > What gets me is that I just had the car at the dealer and they replaced
> > two
> > tensioners. They said it needed new belts to stop the squeaking. Why
> > didn`t
> > they spot the bad harmonic balancer? Can I get away with not replacing
> > it?
> > What happens when one fails?
> It`s kind of hard to see from the top, maybe easier from the bottom.
> It`s not something that usually fails. Before I`d let them work on it
> I`d check to see if there`s any TSB`s out on it.
> To be quite honest, I smell a rat. I`ve owned quite a few cars over the
> years (and most were GM, but not all...) and I`ve NEVER had a harmonic
> balancer go bad.
He put it up on the lift and showed me. The rubber part in the center of the
pully is all cracked and about an inch around the circumference there is no
rubber at all that I can see. When the engine is running it is slightly
wobbling. And it`s in a real tight spot. He showed me on a Taurus how easy
it is to get to it. But on the Vette it`s inches from the front of what
looks like the frame.
BTW, do you know the URL for Corvette TSB`s?
--
Warmest regards,
Steve
Date: Tue, 10 Jan 2006 06:57:02 -0800
From: Crabs <IHateSpam(at)SpamSucks.com>
Subject: Re: Bad Harmonic Balancer
Lines: 10
NNTP-Posting-Host: 24.2.59.142
________________________________________________
Steve:
> BTW, do you know the URL for Corvette TSB`s?
>
http://www.alldata.com/TSB/10/981006iS.html
Here`s a start.
Good luck!
TomC
`90 ZR1 #792
Last "Cars" Post on Wordpress:
Title: Peep a Pic: The Arabs love Fine Cars
Date: Fri, 25 Sep 2009 22:05:30 +0000
Author: Desert Diaries
Ibn Mansi Autos - Jeddah, KSA
The Arabs love fine cars just as much as they love fine perfumes,
More on: http://desertdiaries.wordpress.com/2009/09/25/peep-a-pic-the-arabs-love-fine-cars/
____________________________________________
Title: Volkswagen Golf R
Date: Fri, 25 Sep 2009 11:36:24 +0000
Author: symo
Primo: bisogna trovare una vera erede mk6 della sempreverde R32. Secondo: non è possibile che la Ford Focus RS sia sempre cosi avanti anni luce da tutte le altre (o quasi), bisogna trovare un modo di avvicinarsi alla concorrenza. Probabilmente questa può essere la volta buona, in Volkswagen sembra abbiano pensato davvero a tutto nella creazione di questa Gof R.
Dal punto di vista meccanico la R è mossa dall’ormai famoso TSI 2.0 litri 4 cilindri che abbiamo già visto su Audi S3, TTS o Scirocco R. Questo motore permette di erogare la bellezza di 270 CV a 6 mila giri/min e una coppia massima di 350 Nm in un range di 2500 giri/min (da 2500 a 5000 per la precisione).
Le prestazioni sono di assoluto rilievo: la massima è limitata a 250 km/h e l’accelerazione 0-100 varia di 2 decimi di secondo in base all’adozione del cambio manuale (5,7 secondi) o automatico DSG (5,5 secondi). More on: http://wrongpassword.wordpress.com/2009/09/25/volkswagen-golf-r/
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