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Subject:
Re: Bad Harmonic Balancer

From: "Dad" <knockers(at)fisher.net>

Subject: Re: Bad Harmonic Balancer

Date: Sat, 14 Jan 2006 10:15:30 -0500

Lines: 79

NNTP-Posting-Host: 216.201.40.128

________________________________________________









Did you just tighten the bolt to see if it had allowed it to "wobble"?

If you note his pictures the bolt head is off center, my guess is that

it`s loose, not discentagrating. I`m sure replacing a good balancer

and tighten the bolt will also correct the problem, but costs more

than to tighten the bolt on the old one. Of course I`m still guessing

but if I had gone to the trouble of taking the pictures I might have

tried to tighten the bolt also. The rubber looked OK, although it did

have a bigger than normal gap.



--

Dad

05 C6 Silver/Red 6spd Z51

72 Shark Black/Black/4spd



"sbright" <sbright(at)comcast.net> wrote in message

news:hcqdndUTT8r2RVXeRVn-sQ(at)comcast.com...

> Dad-

>

> I know what you`re saying..but.. I had an annoying squeeky belt on

> my 2000 C5. Ultimately, it was quited down by replacing the

> crankshaft pulley. Hard to believe.. but it was "wobbly". Car had

> about 50K miles on it at the > time.

>

> Steve- The pulley is reaplaced from the underneath. The steering

> rack needs to come out to get at it. Procharger (ATI) has a kit to

> pin the pulley to the crank. You basically drill a hole in the pin

> of the crank which goes into the pulley and put a pin in it. In

> addition to being bolted on with the big bolt which by the way is

> not supposed to be reused. I`m telling you this because if you

> ever decide to supercharge your car(highly recommended), your

> mechanic would have to repeat what he is doing here. Four hours

> sounds right for the job.

>

> -Stan

> `99 Blown C5 Vert

> `00 Coupe

>

> "Steve Horrillo" <usenet(at)stephenhorrillo.com> wrote in message

> news:l2Ywf.160166$aS5.128798(at)bignews4.bellsouth.net...

>>

>> On 10-Jan-2006, "Dad" <knockers(at)fisher.net> wrote:

>>

>>> > 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.

>>>

>>> I doubt this is the case, it may be loose but no way the rubber is

>>> worn in the balancer. Just to let you know the LS1 has an oil

>>> filled

>>> crankshaft and if the bolt comes loose it will allow a black

>>> residue

>>> to form. Would have said something earlier but I block spamm.

>>

>> I posted a up couple of close up pictures at

>> http://stephenhorrillo.com/C5_harmonic_balancer.htm. Let me know

>> what you

>> think. Notice the gap, the cracking rubber and the way it`s pushed

>> in on one

>> side and hanging out on the other. If you need pictures with a

>> higher

>> resolution or a movie of it spinning let me know.

>>

>> Should I replace it? If I just replace the belts should the

>> squeaking stop?

>> When I spray belt dressing on the main belt the sqeaking stops for

>> a little

>> while but there`s still a sort of rattleling sound.

>>

>> --

>> Many thanks Dad and everyone,

>>

>> Steve

>

>








Subject: Re: Bad Harmonic Balancer

From: "Stephen Horrillo" <usenet(at)stephenhorrillo.com>

Lines: 22

Date: Mon, 16 Jan 2006 03:40:21 GMT

________________________________________________











On 14-Jan-2006, "Dad" <knockers(at)fisher.net> wrote:



> Did you just tighten the bolt to see if it had allowed it to "wobble"?

> If you note his pictures the bolt head is off center, my guess is that

> it`s loose, not discentagrating. I`m sure replacing a good balancer

> and tighten the bolt will also correct the problem, but costs more

> than to tighten the bolt on the old one. Of course I`m still guessing

> but if I had gone to the trouble of taking the pictures I might have

> tried to tighten the bolt also. The rubber looked OK, although it did

> have a bigger than normal gap.



I took the picture by driving up the parking stop. It wasn`t up high enough

to check the bolt. Just high enough to stich my arm under the car. Great

observation though. Thanks. I`ll have it retorqued and centered if possible.

Seems odd that it`s possible that the mounting hole in the flywheel would be

large enough to be that far off center?



--

All the best,



Stephen






Subject: Bad Harmonic Balancer

From: "Stephen" <usenet(at)+++.com>

Lines: 13

Date: Sun, 30 Jul 2006 14:33:05 GMT

________________________________________________









I have a `98/C5. The rubber that separates the harmonic balancer from the

flywheel has broken off. So I guess it needs the whole assembly. Is there

any altenative? I understand when a blower is put in there`s a way to lock

the two together. Can the rubber relaced? If indeed the whole balancer needs

replacement what should be a fair cost? Is this something I should take it

to a dealer for or use a trusted mechanic?



PS: does anyone have the repair instructions for this job?



--

All the best,



Stephen



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