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Harmonic balancer appears to be wobbling at idle? WHAT!?

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Old 03-13-2006, 10:31 AM
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Default Harmonic balancer appears to be wobbling at idle? WHAT!?

Not buying a car new you never know what to expect or all of it's history. Seems my crank pulley has a wobble to it. I'm not exactly sure what would have caused this. What does?

Is it possible it was pressed on crooked? Is the bolt cross-threaded? I'm not sure as I haven't looked at it yet. I know this can't be fixed by a post on the internet, but if you can offer some information please do.

The wobble is fairly noticable- I'd say 125 thousands. This is on my '98 with the stock balancer.

Thanks in advance.
Ben T.
Old 03-14-2006, 10:11 AM
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I guess this isn't a common problem...?

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Old 03-14-2006, 11:03 AM
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Take a look and see if it's actually wobbling or if some nim rob smaked it on with a hammer and dinged one of the belt runners. If it is wobbling I suggest you take it off and inspect. Sounds like a perfect reason to get an under drive. Look at the distance between the back of the balancer and timing cover. It may give you a better idea if it walked off any.
Old 03-14-2006, 11:34 AM
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I have not seen one yet that doesnt have a litte wobble to it.
Old 03-14-2006, 09:10 PM
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I took my under drive off because it had a wobble to it at idle. Put the stock one on and it ran fine. Got a different under drive and runs fine now. If it is not hurting the belt I would not worry about it to much.
Old 03-14-2006, 09:18 PM
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Originally Posted by Studytime
I guess this isn't a common problem...?

Ben T.
Pretty common..... but time to think about replacing. A wobble means the elastomer is slipping (the rubber part). The wobble can cause it to come loose also. LS1 balancers have no key and are basically a press fit. You can find "balancer came loose" threads about a hundred times around here.
Old 03-14-2006, 09:20 PM
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You do not want any wobble to your balancer. That will eventually F!@# your motor bearings up if It has'nt already. I wouldnt run it personally untill I fixed it.

Last edited by Oatmeal; 03-14-2006 at 09:25 PM.



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