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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Stubborn @$$ Bolt!

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Post by 77mali Sat Apr 25, 2015 8:21 pm

Evil or Very Mad

So today I was changing an E-rake cable on the truck and I busted a bolt on a mounting bracket that the cable will need to attach to.

I was able to take the bracket off as it mounts behind the bolt that holds the R/R shock...tried heat, on the vice, with MAP gas, PB Blast & pliers to try and "uncrew" it.  It spins about 1/64 of a turn and then that's it- either way.

I really don't want to drill it out...any other ideas?
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Post by Joe73 Sat Apr 25, 2015 8:37 pm

Ive had some stubborn ones over the years. Heat is always the way I get it out. If mapp on the surrounding area dosent work then you have to go with acetylene.
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Post by chevellelaguna Sat Apr 25, 2015 8:43 pm

Heat just need more of it...can also weld a washer on the broken bolt and weld a nut to the washer, that works for me every time.
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Post by 77mali Sat Apr 25, 2015 8:49 pm

I have no access to welding tools sadly. I'll try again with a longer dwell time w/ the map gas. Have to find my vice grips & see if I can get better leverage vs pliers too.

If all else fails I might take it up to the Firestone shop near me tomorrow...ugh.

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Post by Joe73 Sat Apr 25, 2015 9:36 pm

Stupid question but your heating the area around the bolt, right? Not the bolt itself. Heat the hell out of the area around the bolt. Then try to turn.
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Post by 77mali Sat Apr 25, 2015 9:51 pm

Yeah Joe.  There's a nut welded to the bracket on the bottom where the bolt threads through & I heated to the left & right of it.  I'll try and get it at least pink or purple before trying to turn it again.  There is a small recess where that welded nut meets the top of the bracket (Chevy engineering!) & there's a lot of rust that has expanded to pretty much solidify those threads that are not exposed.  That seems to be the issue.  What a pain in the butt!
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Post by chevellelaguna Sat Apr 25, 2015 10:42 pm

Try hitting the nut with a hammer..and a dolly to support the hammer blows... Then heat the nut red.
Can't just drill a hole beside the broken bolt and nut and bolt the e brake bracket back on? Or just drill out the broken bolt and the nut behind it and nut and bolt it thru the old nut... It's for the e brake... Dunno if I've ever used the e brake on any of my vehicles.
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Post by 77mali Sun Apr 26, 2015 2:55 pm

Put it back on the vice and just kept twisting the bracket around both ways with some brute force until it started moving more. Took about 10 minutes & I was ale to unscrew the bolt. What a P.I.T.A. Rolling Eyes
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