Harmonic balancer question.

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Oct 20, 2002 | 10:52 AM

Larry B.

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Le Mans Master

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From: Orlando Floriduh

Harmonic balancer question.

As I posted earlier about my balancer... Well it is off. It wasn't that hard to pull off. just took a little time. Anyway here is the question. I now have two pieces with no rubber. I did find a piece of the old rubber. It was not vulcanized but farther just a strip of rubber. Luckily the piece I found had the size embossed into it. 1.060 X .139. Since there an no moving parts and only two pieces it seems that it could be rebuilt very easily. Anyone tried this? I think I am going to try as mine is rather expensive. (427). :confused:

Oct 20, 2002 | 10:57 AM

Jvette73

Safety Car

Joined: Jun 2001

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From: Severna Park Md

Re: Harmonic balancer question. (silvervetteman)

From all accounts ive heard, if it has seperated or even so much as slipped, it needs to be replaced. Ive never heard of any backyard method of succesfully putting one back togeather. Its not a part you want to take any chances with. When mine slipped I replaced it with a "fluidampr"

Oct 20, 2002 | 11:06 AM

Scott78

Drifting

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Re: Harmonic balancer question. (Jvette73)

Replace it, you can get from Summit an OEM blancer for your 427 for $77
Part #SUM-162396. Depending on how you use the motor that should suffice. I've never heard of a process to "rebuild" balancer that the common guy can do.

Scott

Oct 20, 2002 | 07:27 PM

Larry B.

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Le Mans Master

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From: Orlando Floriduh

Re: Harmonic balancer question. (silvervetteman)

I work with plastics and rubber molds and stuff like that everyday. I am a model maker and we use two part vucanizing rubber all the time. My balancer is 7", not the more common 8" one tha you linked me to at summit. What I need to know is where the timing mark is aligned in relation to the crankshaft keyway... Anybody?

Oct 20, 2002 | 08:15 PM

Duke94

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From: Ann Arbor Michigan

Re: Harmonic balancer question. (silvervetteman)

I have a new balancer I haven't installed yet (6 3/4"). I'm not sure how to actuatly measure where the TDC mark is relative to the key. Tell me how, and I'll give it a shot.

Oct 20, 2002 | 08:38 PM

Larry B.

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Le Mans Master

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From: Orlando Floriduh

Re: Harmonic balancer question. (Duke94)

It is going on a 390/427. Is that what you have? Books seem to list 396/427 as the 7" variety. You can use a common protractor to relate the position of the "tdc" mark to the keyway. Thanks

Oct 21, 2002 | 01:33 AM

jackson

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From: Unreconstructed, South Carolina

Re: Harmonic balancer question. (silvervetteman)

I have worked in auto mfg ... rubber molds & vulcanizing too ... making safety products (brake booster diaphragms). I would not attempt to rebuild myself ... there are specialty rebuilders that can. Yours may have failed because it was not properly vulcanized. Without considerable time & expense I could not determine whether correct rubber (CR, nitrile, whatever) ... nor what proper time & temp curve for vulcanization & bonding. If that ring comes off again you may not be as lucky as you were this time. Do your baby a favor and get an OE replacement ... heck phone your dealer ... maybe NOS. Then find a balancer rebuilder to fix yours if need be.