Is it okay to reuse the harmonic balancer bolt?

Is it okay to reuse the harmonic balancer bolt?

Postby ritous1 [OP] » November 14th 2014, 1:27am

I'm trying to finish up a cam swap and just wondering if it's necessary to replace the center balancer bolt. My service manual doesn't say to replace it, but most information I find online suggests to do so. It's not an expensive part, but the local dealership can't have it til Monday and I wanted to get the van running this weekend.
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby chevymaher » November 14th 2014, 1:41am

I always do. I never had a problem. It isn't holding squat and it big enough to hold the Titanic.
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby RECox286 » November 14th 2014, 2:38am

Not a problem in all my years of twisting wrenches.

There are only a small number of "do not reuse" bolts but this isn't one of them.

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Re: Is it okay to reuse the harmonic balancer bolt?

Postby markmitch » November 14th 2014, 2:50am

I third that!
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby thegreenmachine » November 14th 2014, 3:01am

I fourth.

But why not? You're already in there.....
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby Astrofarian » November 14th 2014, 6:28am

It's up to you...I've never had a problem re-using the bolt nor have I heard anyone having a failure on a street engine. Maybe your cam manufacturer is just covering their butts in case of a race application failure? I can't say but myself. I wouldn't sweat it. Just make sure to torque it to spec and you're good to go.
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby ritous1 [OP] » November 14th 2014, 7:08am

Thanks guys.
99 rwd 139k miles
paxton supercharger
bosch 36lb injectors
walbro 255 pump
aluminum radiator & dual efans
accel billet distributor
crane hi-6 ignition & race coil
magnaflow cat/ypipe
doug thorley dual exhaust
sonnax shift kit & vette servo
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby pauldeere » November 14th 2014, 11:09am

I agree with everyone else. I don't ever remember replacing one. Suggest cleaning the threads and using blue Locktite....
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby Lumpy » November 14th 2014, 11:43am

This guy needs a harmonica balancer -

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Re: Is it okay to reuse the harmonic balancer bolt?

Postby Big_kid » November 14th 2014, 1:49pm

I've always reused them and never had a problem either.
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Re: Is it okay to reuse the harmonic balancer bolt?

Postby RECox286 » November 14th 2014, 3:16pm

Hey gang, looks like the vote is in, we've been wrong all these years !

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