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Crank bolt: can it be reused?

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Old Apr 3, 2024 | 08:40 AM
  #1  
gw204's Avatar
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Crank bolt: can it be reused?

This seems like a simple question...but I've been searching and haven't been able to come up with a concrete answer.

Replacing the harmonic balancer on my son's '86 Firebird this weekend and I'm going to try and get my hands on a new bolt, but in case I can't come up with one is it OK to reuse the existing one? I think this will be at least the second time it's been removed and reinstalled.

Thanks.
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Old Apr 3, 2024 | 09:29 AM
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heat seeker's Avatar
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Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: Crank bolt: can it be reused?

If not damaged, sure can.
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Old Apr 3, 2024 | 09:29 AM
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Car: '83 Firebird (T/A Clone)
Engine: 350 with L-69 components
Transmission: 700R-4, 2000 RPM stall converter
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Re: Crank bolt: can it be reused?

I re-used mine. It's not like your damper is gonna fly off, since it's a press-fit...
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Old Apr 3, 2024 | 11:39 AM
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Re: Crank bolt: can it be reused?

Since it's not a "TTY" (Torque To Yield) bolt, as long as it isn't damaged, I've never had a problem reusing them

From Google;

"What is a torque-to-yield bolt? It is a one-time-use fastener that is designed to stretch during the torquing process (installation). Because of this stretching, the integrity of the bolt is compromised. These bolts cannot and should not be reused due to the stress caused to the bolt during its first installation."
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