mourad

In changing the front rotors, Haynes says you have to remove the entire caliper assembly which makes sense.

The caliper body itself seems to be held by one deep bolt, it took some serious back breaking effort to take that one off.

The last step is to remove the caliper assembly which is retained by two large bolts. I have no idea how I managed to take the top one off but the bottom one won't come out.

I used my jack to provide leverage to the wrench, there was so much pressure that my shocks were compressing. The bolt was so seized that its edges are somewhat rounded now so my socket won't fit it anymore. I think what I need is an impact tool that hugs the bolt on all sides instead of the outter edges only.

Any advice?:cry:

Brett

Heat always works well try using a small propane torch to heat the nut up nice and hot. As for the edges being rounded you may need to use a hammer to beat the next size down onto the head. Probably a 16mm, im thinking those caliper nuts are 17mm.

imported_mrchaos

yup heat....i had to heat mine

not even a 300 ft lbs impact wrench took them off

imported_loudsubz

you need bigg man

imported_bevboyy

Or a huge rachet with a 3ft handle..

NipZ

or maybe those are one of those bolts that have that little pin underneath it... check for a pin the width of a paperclip.. make sure that's not in there... i had the same problem... unless we're talking about a different part of the suspension.

spracingsports

just put a ratchet on it and get a piece of pipe to go around the ratchet and have like 3 people sit on it

imported_Syphon

yup.. thats how i did mine... well, 2 people anyways.

mourad

I thought heat will expand the bolt and make things worse! Plus I'd have to be careful not to burn the brake hose.

In order to untighten the bolt, I have to lift the wrench so I used my jack to apply huge pressure. That didn't even work.

hmm, propane torch... Will try that, but I still would like to try an air tool first since the first bolt did come off just with shear power from my gigantic biceps

imported_mrchaos

you have to lift the bolt???? that doesn't seem right....this is the bolt holding on the caliper bracket right?

and i will guess this is the lower of the two that is stuck

imported_fine2ne

you need more torque get a 3 ft pole and break em, it works. I did mine like last week only problem was when i broke them the thread striped right off the bracket. So i had to have them tapped and used the next size bolt up. Good luck. Also the screws that hold the rotors on all had to be drilled too. It was a mess but well worth it, i can smoke my tires if i brake to hard.

Whiplash

heat the bolt..
it causes the bolt to expand breaking up the "shyt" around the threads that is causing it to hold firm..
let it sit for a few seconds after heating it and all should be good..

hitting it with a "persuader" you run the risk of snapping the head off the bolt...you think things are hard now, break the bolt and then try getting it out

mourad

Yup, since the bolt is behind the caliper, I'd need to turn it clockwise to remove it. This means putting the wrench behind the wheel and lifting the wrench's end to achieve clockwise motion.

I just went through that, talk about pain. I even snapped a drill bit in the process. I think I'm out of luck now since dealerships are closed until tuesday. No replacement screws.

Ah, so heat it then let it cool then. Makes sense. Thanks.

zoomzoom

good post man

Whiplash

nice *last* post

imported_94EG6HB

Thanks..

mourad

Plan A - use force worked. My problem is solved.

I got a diamond shaped socket from my neighbor that hugs the nut on all sides, then used a giant $150 wrench. It took a small amount of force to turn it.

Lesson is: Don't complain if you're using crappy tools. There's a tool for every job.

Thanks guys, the pyrotechnics will have to wait for the next stubborn bolt.

imported_loudsubz

glad to hear it all worked Mo'

Marty, what is this persauder you talk about?

imported_bevboyy

I suspect - hammer.

mattharper

i had no problem with seized bolts when i changed my rotors and pads
i guess they had been removed soon before i bought the car