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Chirp after HB replacement

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Old Oct 3, 2018 | 10:26 AM
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Default Chirp after HB replacement-Solved

Replaced harmonic balancer, seal, and new Continental Elite belts. There was no chirp before. Two weeks later, chirping. Do these new belts have any break in period? Live in Chicago so there is a recent weather change, but 70's today. Any thoughts on why two weeks later the noise starts? Thanks! 10/7/18 Solved - we were able to isolate the chirping to the A/C pulley. From replacing the belts, the extra tension caused an already bad tensioner to start chirping. Should have replaced all pulleys when HB was replaced. Replaced all now with Dayco pulleys, noise gone.

Last edited by VetteJ; Oct 7, 2018 at 09:02 AM.
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Old Oct 3, 2018 | 11:09 AM
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ARP. If it was coming loose I assume I would see a wobble, I will check. It was done by a technician and I am pretty confident he torqued correctly.
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Old Oct 3, 2018 | 11:22 AM
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Originally Posted by 8VETTE7
Perhaps the bolt for the balancer was not properly torqued and it is loosening up??

Was a new bolt used???

OEM or ARP??
Do you think its possible tensioner went bad after from having a new tight belt?
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Old Oct 3, 2018 | 03:34 PM
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No wobble from HB. Drove it again, 90% of chirp at idle is gone, mostly now when accelerating.
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Old Oct 4, 2018 | 04:03 PM
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Idlers and tensioners would probably fix it.
I had a new balancer installed and went ahead and replaced all the idlers and tensioners and belts. No chirping.
Good luck!
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