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fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 2:36 pm
by michi
Hey guys, i swapped in new brake pads in my car and made everything nice and cleaned everything. When i bolted the calipers back in i had the problem that one bolt wont get bolted in so i looked and i saw that the thread is fucked up so i cant bolt my caliper back in place... OMG.

I am already about to get another steering knuckle but does anyone got some ideas to fix that? I already tried to re-thread but wont work since the hole is a little bit bigger now :(

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 2:59 pm
by Slinky
Buy a tap that size and run it through the hole, it will clear out and reform the tapped hole

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 3:10 pm
by Asylum
You may be able to tap it bigger then heli-coil it, but I wouldn't!

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 3:22 pm
by 3X00-Modified
a proper helicoil job is just as strong as original.

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 3:25 pm
by Asylum
3X00-Modified wrote:a proper helicoil job is just as strong as original.
Ya but that is tough stuff and if the hole is fubarred already???

Depends how bad it is.

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 3:40 pm
by 3X00-Modified
Yeah but if the hole is messed up you drill it out to the new size and re-tap it over sized then coil it back down to original... typically it get's all the crap out and leaves you will good strong threads. I did my cylinder heads and I don't regret it in the least.

Re: fucked up steering knuckle thread - HELP

Posted: Fri Jul 19, 2013 4:12 pm
by michi
Thanks guys! havent thought about helicoils yet ;) I am trying to find some so i can fix that. hope it works :)

Re: fucked up steering knuckle thread - HELP

Posted: Sat Jul 20, 2013 11:48 pm
by Cliff8928
They do make oversize thread pins for this purpose...

Re: fucked up steering knuckle thread - HELP

Posted: Sun Jul 21, 2013 7:58 pm
by Asylum
Cliff8928 wrote:They do make oversize thread pins for this purpose...
I have to admit I'm not sure what that is!

Re: fucked up steering knuckle thread - HELP

Posted: Sun Jul 21, 2013 11:29 pm
by Cliff8928
Sorry, guide pins for the caliper...

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RockAuto has the dorman variety. You can also get official GM ones at the dealer.