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Harmonic Balancer gone bad after hitting bump ? [VIDEO]

 
Old 09-10-2016, 10:58 AM
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Ahzuz
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Last edited by Ahzuz; 11-24-2017 at 06:48 PM.
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Old 09-10-2016, 12:16 PM
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VET4LES
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Check a friends balancer. Most of them wobble a little. Mine is similar to yours.
I don't know how a bump would make it bad.
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Old 09-10-2016, 12:42 PM
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Not So Fast
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Mine does a "little", that's not a little IMHO but I'm sure the gurus will check in
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Old 09-10-2016, 01:06 PM
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Blk 08 C6
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I would replace it.didnt even wait for mine to do that.8 rib aftermarket here and pinned.
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Old 09-10-2016, 01:09 PM
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Sorry, but I'm done with this topic.
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Old 09-10-2016, 01:13 PM
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HBsurfer
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I don't see how hitting a bump could do that unless something actually got up there and hit the balancer.
FYI, Mine was not as bad at yours when I replaced it. The new aftermarket balancer has no wobble at all. And just like every other car I have ever owned, I don't even think about my harmonic balancer anymore

If I was selling the car in two years, I would just watch it. Good chance it will never get worse while you own it.

Last edited by HBsurfer; 09-10-2016 at 01:16 PM.
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Old 09-11-2016, 12:00 AM
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Frankie15
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Don't mean to take this thread off topic, but how would I know if my harmonic balancer is bad without actually looking under the hood? What are some symptoms? Just curious.
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Old 09-11-2016, 10:57 AM
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Mike's LS3
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Originally Posted by Frankie15 View Post
Don't mean to take this thread off topic, but how would I know if my harmonic balancer is bad without actually looking under the hood? What are some symptoms? Just curious.
1. Not looking under the hood, chirping belt can be one symptom.

2. Then actually looking under the hood, besides the obvious wobble,
inspect the silicone seal between the inner and outer shell of the
HB. When the seal starts to fail, the HB will start to wobble.

3. In the video, you not only see the wobble, but hear the serpentine belt chirp. That is a good indication
that the HB wobble has caused misalignment which is fraying the belts edge and causing the chirping
belt.

My HB always had a slight wobble, but after 65k miles it worsen and caused belt chirp. Replaced it with an ATI HB and the birds stopped chirping. It's been quiet for the past 10k miles.

Last edited by Mike's LS3; 09-11-2016 at 11:04 AM.
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Old 09-12-2016, 08:12 AM
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Ahzuz
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Originally Posted by HBsurfer View Post
I don't see how hitting a bump could do that unless something actually got up there and hit the balancer.
FYI, Mine was not as bad at yours when I replaced it. The new aftermarket balancer has no wobble at all. And just like every other car I have ever owned, I don't even think about my harmonic balancer anymore

If I was selling the car in two years, I would just watch it. Good chance it will never get worse while you own it.
The bird chirping makes the car undrivable, in the video it's a cold start so it doesn't sound that much but believe me once it's warm it sounds like a 1990 Pontiac Sunfire

Originally Posted by Mike's LS3 View Post
1. Not looking under the hood, chirping belt can be one symptom.

2. Then actually looking under the hood, besides the obvious wobble,
inspect the silicone seal between the inner and outer shell of the
HB. When the seal starts to fail, the HB will start to wobble.

3. In the video, you not only see the wobble, but hear the serpentine belt chirp. That is a good indication
that the HB wobble has caused misalignment which is fraying the belts edge and causing the chirping
belt.

My HB always had a slight wobble, but after 65k miles it worsen and caused belt chirp. Replaced it with an ATI HB and the birds stopped chirping. It's been quiet for the past 10k miles.
Great post, that sums it up.
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