Bolt stuck! [Archive] - Forum


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02-16-2009, 10:42 PM
Lower caliper bracket bolt.

I went at it with a ratchet, breaker bar, and vicegrips for hours to no avail. Now the end is a bit tapered(narrower towards the tip), and the bolt is very rounded off.

So, I punch it, and drill it with a small bit, then a slightly larger bit, then I hammered in an easy-out. Tried vice-gripping it, impact drilling it, and no luck, it actually grinded the teeth on a channel lock down and caused sparks from the force. Still, bolt will not budge, I'm just glad I was able to get the easy-out out, and didn't break it. :)

Not sure what to do at this point. I've never had to fully drill a bolt out (i.e, all the way to the threads), so I'm unsure how to do that. I figure if I did drill it out, instead of tapping it for new threads, I'd just get a new bracket. The idea of two different sized bracket bolts on 1 bracket sounds like a future irritation. I've never used a helicoil either.

I'm not sure if a propane torch will get hot enought to heat the bracket up quickly enough without heating up the bolt. I might be able to get my hands on an acetylene torch, but not completely sure.

Any suggestions?!

02-17-2009, 05:01 AM
Head to Sears and get a set of bolt outs.

02-17-2009, 11:07 AM
PB Blaster, let it soak, it'll come right out.

02-17-2009, 01:02 PM
Head to Sears and get a set of bolt outs.

Used those, but by a different brand. It's a 13mm bolt, and neither the 12.5 nor the 14mm bolt extractor worked. The bolt is tapered towards the tip, so as you apply torque it just spins off.

PB Blaster, let it soak, it'll come right out.

Is PB Blaster significantly stronger than other penetrating fluids? I used something called moovit.

Plus PB Blaster isn't sold in Canada.

02-17-2009, 01:28 PM
propane torch. but heat the bracket. Watch the rubbers of the caliper and surrounding stuff. Try tightening some too when you're doing it to loosen it off. Thats what I had to do with my axle nuts.

02-17-2009, 01:59 PM
idk i got myself pb blaster, knocks any bolt loose without breaking them. oh, and let it soak for long time, i heard pb blaster is one of best.

2000 GT Coupe
02-17-2009, 02:17 PM
PB blaster is very good stuff and it penetrates you let it soak for a good long time it will help, however with out the bolt head its going to be difficult no matter what.

02-17-2009, 03:09 PM
x5 on PB blast

02-18-2009, 01:46 AM
It finally came off after its surrounding area was subjected to a LOT of heat. :)

I would have tried PB blaster, but like I said, it's not available in Canada.

Lab Rat
02-18-2009, 05:19 AM
Liquid Wrench is better than nothing. But glad you got it off.

02-18-2009, 07:23 AM
order a couple cans from USA, than you got them :"p

02-19-2009, 11:49 AM
Are bolts supposed to seize so much after only 60k (at most? Not sure if brakes have been replaced before)that they need to be torched?

2000 GT Coupe
02-19-2009, 12:00 PM
no, but if they used alot of salt or even sanding on the roads in the winter the corrosion can get that way that is why its best to soak them down the day before you plan on taking them off with PB Blaster, or the best stuff you can get ahold of.