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Old 07-15-2010, 02:39 PM   #1
Aaron104
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harmonic balancer

i have a 5.7 350 and i cant get my harmonic balancer on all the way. the bolt will barely bite but thats it. i've hammered it on with a metal bar but it just wont budge on any more. ne ideas?

Last edited by Aaron104; 07-15-2010 at 02:40 PM.
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Old 07-15-2010, 02:42 PM   #2
my67chevytruck
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Re: harmonic balancer

dont hammer on it! go to the local parts store, leave a deposit, and rent a Harmonic balancer installer.
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Old 07-15-2010, 04:38 PM   #3
hayhauler71
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Re: harmonic balancer

As said do not hammer on it you could destroy the thrust bearing on your crankshaft.
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Old 07-15-2010, 04:50 PM   #4
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Re: harmonic balancer

did anyone elses hair on the back of the neck stand up and git chiles
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Old 07-15-2010, 05:02 PM   #5
Aaron104
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Re: harmonic balancer

hah i take it i shouldnt hammer it...
it says you CAN hammer it tho.
well i'll go get an installer but i have a feeling that it wont change ne thing...
thanks guys!
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Old 07-15-2010, 05:57 PM   #6
68gmsee
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Re: harmonic balancer

Quote:
Originally Posted by Aaron104 View Post
hah i take it i shouldnt hammer it...
it says you CAN hammer it tho....
Within reason -and if you know how to do it.

Tapping it with a hammer is okay to get it started then you should use the replacement tool to install it the rest of the way. I've hammered them on before on untapped crankshafts without any problems but I used a piece of 2X4 to hit on. However, if the crank is already tapped why take a chance...
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Old 07-15-2010, 09:13 PM   #7
Shyguy
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Re: harmonic balancer

You might want to take the harmonic balancer off and make sure the key is in the keyway ok.

My grandson had the same problem getting the harmonic balancer on so that is what he did. He used the installation tool the next time he tried to put the harmonic balancer back on and it went ok.
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Old 07-15-2010, 09:24 PM   #8
JRBECK64
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Re: harmonic balancer

Ive actually seen those keys messed up and until you change the key you wont have much luck getting it on.

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