2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Stripped Threading question

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Old Apr 5, 2009 | 04:16 PM
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Phearthe-Rx7's Avatar
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Stripped Threading question

So, I am getting some brand new calipers, but one of them has the bleeder threads stripped apparently

I was thinking of using a Helicoil insert but a guy at Autozone seemed sketchy on that because he wasn't sure how it'd react with brake fluid.....

Any ideas? Possibly can try re-threading it, not sure how bad it is stripped out yet
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Old Apr 5, 2009 | 04:31 PM
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87 t-66's Avatar
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chase/retap it? why would you buy a messed up caliper?

Last edited by 87 t-66; Apr 5, 2009 at 04:40 PM.
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Old Apr 5, 2009 | 10:52 PM
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Originally Posted by 87 t-66
why would you buy a messed up caliper?
+1 return it and get a new one
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Old Apr 6, 2009 | 05:29 AM
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clokker's Avatar
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Originally Posted by Phearthe-Rx7
So, I am getting some brand new calipers, but one of them has the bleeder threads stripped apparently

I was thinking of using a Helicoil insert but a guy at Autozone seemed sketchy on that because he wasn't sure how it'd react with brake fluid.....

Any ideas? Possibly can try re-threading it, not sure how bad it is stripped out yet
The Helicoil doesn't care about brake fluid, but that doesn't solve your problem.
Bleeder screws seal on a taper at the bottom and I don't know how you'd preserve that while installing a Helicoil.

I'm also confused how a "brand new" part comes with a defective bleed screw.
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Old Apr 6, 2009 | 06:01 AM
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same thing happened to me just tapped it and put a bigger bleeder in
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Old Apr 6, 2009 | 08:37 AM
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I am getting the calipers for free minus the shipping charge
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Old Apr 6, 2009 | 10:23 AM
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Sounds like a false economy. A rebuilt caliper from the auto parts store without any stripped threads is $100 + core. How much time and energy will be wasted trying to repair the broken one with the potential of making a caliper that leaks slightly forever? A HeliCoil set is $60.
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Old Apr 6, 2009 | 10:35 AM
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Yeah, I figured if worse comes to worse I will have to buy one new calipers.....but for the $22 of shipping I got one good calipers, one with the stripped bleeder and the brake pads for both, sounds good to me still
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Old Apr 6, 2009 | 11:20 AM
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Originally Posted by Aaron Cake
Sounds like a false economy. A rebuilt caliper from the auto parts store without any stripped threads is $100 + core. How much time and energy will be wasted trying to repair the broken one with the potential of making a caliper that leaks slightly forever? A HeliCoil set is $60.
at the parts stores here if you only need 1 helicoil size, the drill bit and coils and the little install tool is only like 20$, but i personally would tap to a larger size and use a larger bleeder if that was my only option. If you dont get it all perfect the taper won't line up and you will get a leak, and that would be very bad. It might not be enough to make you lose control, but who wants to take that chance.

For slightly more you could rebuild your own calipers, but if you are dead set on repairing these. Make sure you do an awesome job, brakes are not something you want to half ***. you dont wanna hurt yourself or someone else doe to a failure caused by somethig you accidentally messed up.
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Old Apr 6, 2009 | 02:09 PM
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gotcha, so the larger bleeder thread sounds like my best option
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