Brake caliper bolts

[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.

[Spinnaker]

Sounds an awful lot like a seized/galled thread to me. Be patient and let it soak, and then work the bolt back and forth to work the penetrant into the threads. Hopefully it will come out without too much damage.

[perksy]

I had this with the rear caliper bolts on my 2002 Boxster S

The bolt did come out eventually (with a lot of force) but the bolt was useless afterwards - you could see what corrosion had done to the end that was exposed to the elements for 10 years. Then, winding that through the hub carrier did quite a bit of damage to the threads.

However, I managed to get new bolts back in without too much fuss (basically cutting a new thread to a certain extent) and they torqued up well.

Definitely get new bolts.

James

[Jittsl]

I had this on mine and has been stated it will be a galled thread. What you are actually doing is dragging the thread out with the bolt. Once removed I had mine retreaded with an insert - too important to leave to chance and not very expensive to do.