LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Harmonic Balancer came off?

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Old Jul 4, 2005 | 04:46 PM
  #1  
heatz's Avatar
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From: Bath, NY
Harmonic Balancer came off?

Has anybody had this problem. I was driving the car home and suddenly lost all the acceseries. When I look at it the harmonic balancer puller had backed itself off the snout of the crank. It chewed the harmonic balancer up pretty bad inside were it slips over the crank. I know the bolt was tight last time we worked on the car. Anyway the harmonic balancer is now junk. I hope the crank is ok. Does anybody know what the crank snout should be for a diameter range? Is the harmonic balancer a one or two piece component? Any help would be great.

Thanks
Ben
Old Jul 4, 2005 | 05:52 PM
  #2  
fbodyfreak's Avatar
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Re: Harmonic Balancer came off?

the Lt1 balancer is two piece. did you loose the hub as well, ie. all you see is crank snout. was the center bolt torqued on.
Old Jul 4, 2005 | 09:15 PM
  #3  
chuckd4more's Avatar
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Re: Harmonic Balancer came off?

We should save this for all the peolple who can't seem to get theirs off
Sounds nasty, good luck with it.
Sorry to clown at your expense buddy.
Old Jul 4, 2005 | 10:12 PM
  #4  
heatz's Avatar
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From: Bath, NY
Re: Harmonic Balancer came off?

The bolt was torqued on when we put the opti on. I know that for a fact because I did it. I did not loose any of the parts because the belt got wedged between the pulley and the spercharger housing. So the pulley stoped and the crank kept spinning in the hub. So I have all the parts. I just need a new hub for it. I need to get a set of mics to make sure I did not toast the crank.

Thanks
Ben
Old Jul 4, 2005 | 10:38 PM
  #5  
Lonnie Pavtis's Avatar
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Joined: Aug 1998
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From: Perryopolis, Pa
Re: Harmonic Balancer came off?

I thought this was an odd problem, until you mentioned the supercharger. Then it is a common problem to spin the balancer on the crank.

They sell keyed replacement hubs as well as complete balancers to prevent this problem. You got off easy as it usually takes out the opti or damages the intercooler if you have a 2 core.
Old Jul 4, 2005 | 10:41 PM
  #6  
shoebox's Avatar
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Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Re: Harmonic Balancer came off?

Yeah, the mention of the supercharger is the thing. Mention that next time in your first post. (better yet, make a sig) Anyone with a supercharger should have a keyed hub.
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