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Stuck/cross threaded suspension bolt

Posted: Thu Jan 17, 2008 9:12 pm
by Goatse.AJ
Ok, went to fit some new front shocks today, but found that the tard that fitted them did a really shitty job. The shocks were replaced under warranty when I bought the vehicle, and I'm guessing that they gave the job to a first year apprentoid who seems to have cross threaded just about everything he touched on the job :cry: :cry:

I've managed to get everything undone except for the one bottom bolt on the rhs front shock. Any advice on how to extract the farker? I DON'T have access to oxy or anything to heat it. I've tried a couple of things to try and "push" it through while unscrewing, but it comes out about 2 - 3mm and that's it. A couple of pics below:

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Posted: Thu Jan 17, 2008 9:20 pm
by MART
Got a ball joint breaker , seeing your changing the shock hammer it into the side where the nut is to preload bolt , then undo and hold pressure on it , rattle gun is the best , otherwise drill it out and bolt and nut it , Cheers Paul.

Posted: Thu Jan 17, 2008 11:03 pm
by MightyMouse
CRC in the thread area, work it back and forward as much as is possible.

Keep adding CRC - keep working it and who knows, but its worth a try.

If all else fails grind or cold chisel the nut off and as MART said use a nut and bolt ( best make it grade 8 and use a nylock nut ). You can get it plenty tight as the steel sleeve in the bottom eye will stop it crushing the mount.

Hope the "doggies" live up to expectations, otherwise all the drama isn't going to make you a happy chap :cry:

Posted: Thu Jan 17, 2008 11:34 pm
by cloughy
Bigger breaker or rattler and some spray, CRC, Inox, Yield etc

Posted: Thu Jan 17, 2008 11:51 pm
by Goatse.AJ
Sorry, should've clarified things. Thread is farked from being cross threaded. I can turn it, but it only comes out 2-3mm. I'll try a balljoint breaker and CRC tomorrow. Failing that I'll take it round to the workshop and hit it with the rattle gun.

Posted: Fri Jan 18, 2008 11:15 am
by bogged
drill it and easy out?

Posted: Fri Jan 18, 2008 11:19 am
by RAY185
Is there enough thread on the other side of that fixed nut to start threading in another bolt? If so, wind another bolt in from the other side while undoing the offending bolt and it should come out. Plenty of CRC as stated.

Posted: Fri Jan 18, 2008 11:53 am
by Goatse.AJ
RAY185 wrote:Is there enough thread on the other side of that fixed nut to start threading in another bolt? If so, wind another bolt in from the other side while undoing the offending bolt and it should come out. Plenty of CRC as stated.
Might have to try that :D

Trouble is it needs rto be pushed or pulled out as the thread is stuffed :cry:

Posted: Fri Jan 18, 2008 1:03 pm
by bogged
AJFeroza wrote:
RAY185 wrote:Is there enough thread on the other side of that fixed nut to start threading in another bolt? If so, wind another bolt in from the other side while undoing the offending bolt and it should come out. Plenty of CRC as stated.
Might have to try that :D

Trouble is it needs rto be pushed or pulled out as the thread is stuffed :cry:
drill it out, and heli-coil the biatch

Posted: Fri Jan 18, 2008 1:59 pm
by RoldIT
Grind the captive nut off and either replace with standard nut or weld new captive nut on.

Posted: Fri Jan 18, 2008 2:38 pm
by shakes
bogged wrote:
AJFeroza wrote:
RAY185 wrote:Is there enough thread on the other side of that fixed nut to start threading in another bolt? If so, wind another bolt in from the other side while undoing the offending bolt and it should come out. Plenty of CRC as stated.
Might have to try that :D

Trouble is it needs rto be pushed or pulled out as the thread is stuffed :cry:
drill it out, and heli-coil the biatch
x2

Posted: Fri Jan 18, 2008 2:45 pm
by RoldIT
shakes wrote:
bogged wrote:
AJFeroza wrote:
RAY185 wrote:Is there enough thread on the other side of that fixed nut to start threading in another bolt? If so, wind another bolt in from the other side while undoing the offending bolt and it should come out. Plenty of CRC as stated.
Might have to try that :D

Trouble is it needs rto be pushed or pulled out as the thread is stuffed :cry:
drill it out, and heli-coil the biatch
x2
Why? It's a dodge captive nut. Why would you bother with the time and expense to helicoil it when you can cut and replace in half the time with virtually no cost. Helicoils are for things that HAVE to be repaired as the alternative is much more expensive, like engine block or head. Dosen't make sense to me ... :?

Posted: Fri Jan 18, 2008 2:57 pm
by shakes
look's like you'd have a prick of a time swinging a grinder around in there.

maybe drill it out and weld a nut onto the existing for cheapness

Posted: Sat Jan 19, 2008 3:59 pm
by brad 93hilux
you can buy a freeze spray made by locktite (can get from repco $15).

Spray this on the bolt and if it is corroded it might shock it into releasing (same idea as using oxy but without burning everthing :? ), and use impact or breaker bar with a impact socket and a piece of pipe, having failed that, cut it off and tack weld a new nut on... :cool:

Brad

Posted: Sat Jan 19, 2008 7:59 pm
by Patroler
get a mate with a pin punch and hammer to tap it from the back while you turn it slowly and wd40 never hurts either.
Then ideally you'd grind the nut off and weld a newy on, but if you don't have the gear just get bolt of the same size thread and pitch and nylock nut as mentioned - to make the thread fit through the old nut you can drill the stuffed thread, if a drill won't fit use a tap - same thread as new bolt and a small shifter to re cut a path for the new bolt - make sure you put a new nut as well as the old one will now be too weak.

Posted: Sun Jan 20, 2008 8:53 pm
by DIRTY ROCK STAR
how did you go with it?

i had a similar problem. when it came out, the thread came out with it...
so i bodgied it up with a longer bolt so it still got into what was left of the thread. 80 series though.

Posted: Sun Jan 20, 2008 9:24 pm
by Goatse.AJ
Haven't had a chance to look at it yet :cry: I'll try to catch up with a mate who is at least partially mechanically competent next weekend and see if he can give it a tap as i try to unscrew it. If the other side is anything to go by, the nut should be ok, it's just the thread on the bolt that's rooted.