Brake caliper bolts

[Bryan topping]

Hey guys, I'm trying to take the front calipers off to do some suspension work, left side was easy but the right side top caliper bolt is really tough. It almost seems to tighten the further I go even after dowsing it with PB Blaster. Am I just being too impatient with the penetrating oil? It's been over an hour now.

[Topless]

If it is really stuck, soak it in penetrating oil and let stand overnight. I have had luck by starting the process by turning clockwise just enough to break it loose and then backing it out. Sometimes the bolt is just corrosion-welded to the wheel carrier and nothing will prevent it from stripping out. Then you will need a timesert or fresh wheel carrier.

[WhipE350]

Bryan - How many miles on the car? Does it look like the brakes have ever been serviced? Also how long a breaker bar did you use, it might just need close to 100lb to get loose. Post a picture if you can take one.

[Bryan topping]

It moves a little at a time using about a 18" breaker bar. I'll try soaking it a bit more & try it in the morning.
The car has 124k on it, I'm sure the brakes have been done in that time even though there is quite a ridge on the edges of the discs, but that is gonna be another project.

[Topless]

Originally Posted by Bryan topping

It moves a little at a time using about a 18" breaker bar. I'll try soaking it a bit more & try it in the morning.
The car has 124k on it, I'm sure the brakes have been done in that time even though there is quite a ridge on the edges of the discs, but that is gonna be another project.

hehe,

When I am pulling calipers I often add a 4' galvanized pipe as a helper to the breaker bar. Let soak long time and give her a try. Do mic your rotors and replace if beyond runout spec.

[Bryan topping]

I'm gonna let it soak all night, reapplying every now & then. Brakes are my next big project too.

[RandallNeighbour]

Bryan, you're lucky. My top bolts up front reamed out the threads in the wheel carrier and I had to use timeserts. What a pain.

[Bruce Wayne]

had a galled thread on one of mine too, ended up getting them removed by a guy who goes by the name of the thread doctor (mobile unit) and he re-did the threads (30 pounds or $50 to you) replaced all the caliper bolts with the new design torx heads.

a 3ft breaker bar is the way to go on those !

[srad34]

If soaking does not budge it, get some heat on it, that will do the job.