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Author Topic: Thread stripped and bolt wont come out  (Read 864 times)

Offline Michael Cummings

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Thread stripped and bolt wont come out
« on: July 10, 2006, 12:12:24 pm »
So while trying to put in a new 2g exhaust manifold I ran into some issues with the exhaust manifold to turbo bolts.  I got the 3 bolts out fine but the nut on the stud was siezed.  I ended up trying to get the actual stud out, but it was stripped.  I eventually got it out, but didn't realize that the actual thread in the turbo exhaust hosing is now stripped aswell.  So I attempted to screw in a new bolt.  And now the bolt is part way threaded in, and now is stuck.  I can turn the bolt but it will not move up or down, even with me pulling up on the bolt while turning it.

I'm not sure what to do with it at this point.  Do I have to try to hammer it and break the threads inside?  Am I going to have to rip it all apart again and bring the exhaust housing to a shop to get it re-threaded?
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Offline mitchell hamilton

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Thread stripped and bolt wont come out
« Reply #1 on: July 10, 2006, 06:09:45 pm »
Heat my friend, think heat. Know anyone with a oxy setup? Heat the surrounding area (not the bolt) red hot and then turn. Don't break it off a lot more work.
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Offline Michael Cummings

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Thread stripped and bolt wont come out
« Reply #2 on: July 10, 2006, 06:17:42 pm »
The bolt isn't seized, it turns easily, but wont move up or down.
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1990 Chev Astro (RIP)
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Offline mitchell hamilton

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Thread stripped and bolt wont come out
« Reply #3 on: July 10, 2006, 07:05:23 pm »
Oh sorry, I misread that, anyway you can get the the turbo in a vice? Pull on the bolt and turn with some vise grips?
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90 Tsi AWD, 4 bolt LSD-Fresh rebuild
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Offline Kevin Jones

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Thread stripped and bolt wont come out
« Reply #4 on: July 10, 2006, 07:53:27 pm »
I don't think you'll find a trick to get that out. You'll have to pull on it while loosening or try to pry it away from the manifold with a screwdriver while spinning it.

Was this new bolt larger than the old one? Was the bolt cutting new threads?

It should come out of there if it went in.

When you get it out, you have to either tap the hole to a larger size yourself, take it somewhere to get it rethreaded, or try to put a heli-coil in there.
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Offline Michael Cummings

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Thread stripped and bolt wont come out
« Reply #5 on: July 10, 2006, 07:59:41 pm »
I tried that, pulling on it while spinning it and didn't have any luck.
I figured seen as the old bolt was stripped maybe when i screwed it out I wrecked the threads.

The bolt was the same as the other 3, so unless the stud is a different size which it didn't appear to be then it was the right sized bolt.
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1992 Talon Tsi (Sold - Owned from 02-09)
1990 Chev Astro (RIP)
1988 Yamaha FZR250 (RIP)
2008 Kawi Ninja250R (daily rider)
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Offline Brodie A Thom

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Thread stripped and bolt wont come out
« Reply #6 on: July 10, 2006, 10:56:07 pm »
too bad ur in victoria id bring out some bolt cutters, but see if a shop near by has some ? or heat the bastard off with a torch. good luck
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Offline Michael Cummings

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Thread stripped and bolt wont come out
« Reply #7 on: July 11, 2006, 09:20:55 am »
I dont understand what bolt cutters would do? That has nothing to do with the problem.  I will try just reefing on it with the vice grips again.
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1992 Talon Tsi (Sold - Owned from 02-09)
1990 Chev Astro (RIP)
1988 Yamaha FZR250 (RIP)
2008 Kawi Ninja250R (daily rider)
1998 Ford Explorer XLT (daily driver)

Offline Andrew Scott

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Thread stripped and bolt wont come out
« Reply #8 on: July 11, 2006, 03:11:34 pm »
I'm pretty sure I stripped that exact bolt a while ago, and bought a helicoil kit for it. I may still have it around, I'll look for you
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Offline Scott Girvin

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Thread stripped and bolt wont come out
« Reply #9 on: July 11, 2006, 08:17:27 pm »
I as well had the same problem. You wouldnt happen to be using an SBR stainless manifold to turbo gasket would you? If so you need to widen the bolt holes in the gasket for proper fitment.

A heli-coil works great for the fix.
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Offline Michael Cummings

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Thread stripped and bolt wont come out
« Reply #10 on: July 12, 2006, 11:05:29 am »
No its a 2g manifold going to a small 16g with stock turbo gasket.  I stipped the stud when taking it out and didn't think that i stripped the actual threaded hole aswell, which is dumb of me.  So I got new bolts and now in this mess.

Andrew if you have that , that would be awesome, maybe we can do an exchange for the shirt i've had sitting brand new in the bag for 2 years for you.

Are there any good writeups on how to do a heli coil, because i've never done one before.

I still have the issue of actually trying to get this bolt out still.
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1992 Talon Tsi (Sold - Owned from 02-09)
1990 Chev Astro (RIP)
1988 Yamaha FZR250 (RIP)
2008 Kawi Ninja250R (daily rider)
1998 Ford Explorer XLT (daily driver)

Offline Michael Cummings

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Thread stripped and bolt wont come out
« Reply #11 on: July 12, 2006, 08:52:05 pm »
So i'm leaning towards this method.  Andrew you still got that piece? if not wheres the best place to get it.
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1992 Talon Tsi (Sold - Owned from 02-09)
1990 Chev Astro (RIP)
1988 Yamaha FZR250 (RIP)
2008 Kawi Ninja250R (daily rider)
1998 Ford Explorer XLT (daily driver)

Offline Jeff Chau

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Thread stripped and bolt wont come out
« Reply #12 on: July 15, 2006, 08:48:42 pm »
So did you ever get it out? No matter what, it looks like it's going to be a pain to extract...

http://www.plymouthlaser.com/tbolt.htm
look at what this guy had to do... :cry:
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Offline Andrew Scott

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Thread stripped and bolt wont come out
« Reply #13 on: July 18, 2006, 03:33:28 am »
I do in fact still have it, I saw it on the weekend at my parents house, but i forgot you wanted it. I'll have it sent over for you.
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Parked: 1989 240sx - Esso 87 octane, Superstore generic 10w30, Japanese automatic climate control, Pioneer AVIC-Z3 navagation, Tien Flex Coilovers, Poly bushings, R34 Brakes (front and rear), Cusco tri-point strut braces (front+rear), 1998 tail lights, rear+side valance, adjustable toe and camber arms, cusco sway bars, helical rear diff, Volk TE37s - For sale!
Daily: 2008 BMW M3 DCT

Offline Andrew Scott

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Thread stripped and bolt wont come out
« Reply #14 on: July 18, 2006, 03:36:15 am »
And helicoils are easy to do. I didn't even fuck up when I did it... you just use the specified drill bit to kill all the old threads, use the included tap to cut new threads for the coil to sit in, then screw the coil in.

The kit I think is 12x1.25, maybe 8x1.25, I forget. Do you know what size the bolt is?
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Parked: 1989 240sx - Esso 87 octane, Superstore generic 10w30, Japanese automatic climate control, Pioneer AVIC-Z3 navagation, Tien Flex Coilovers, Poly bushings, R34 Brakes (front and rear), Cusco tri-point strut braces (front+rear), 1998 tail lights, rear+side valance, adjustable toe and camber arms, cusco sway bars, helical rear diff, Volk TE37s - For sale!
Daily: 2008 BMW M3 DCT
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