Stuck Caliper piston

These guys do good work
http://www.goldlinebrakes.com/

 

Put a plug in the hole where the line connects then attach a grease gun to the bleed screw and pump it full. The grease will force out even the hardest pistons. The whole thing will have to be flushed with cleaner to get the grease out, but it's a sure fire way to get the piston out without being dangerous.

 

Have you looked at the rebuild procedure on Birdman's site? BIRDMANFERRARI.com. Might be helpful

 

mine was a bear to get out as well. soaking in penetrating oil and beating on it with wood and plastic drifts for several days finally worked. lots of cussing was also quite helpful. the rebuild is quite simple. use birdmans' procedure. there are some porsche sites that have valuable info as well. get the parts from superformance in the uk. great price, fast delivery and knowledgeable staff. perseverance furthers

 

put it back on the car, hook it up, put a thin piece of wood where the brake pad would go and pump the brakes to push the stuck one out.

calipers are easy to rebuild. just did one last night, start to finish was about 2 hours, and that includes jacking the car up, taking the wheel off, etc. cost all of $15.

 

Did the same to mine. Right rear. Not a real hard job.

 

Yeah, never been beat yet. As advised, bolt it back up and use the hydraulics to push it out with something to fill the gap. If may not fly out, it should just stop coming out once it's past the seal. Of course there'll be fluid all over the place, so cover things up - you could even put it in a carrier bag when you push it out.

It's fun to rebuild callipers but take your time and do it properly with a "clean-room" attitude - an air line helps but use eye protection. I use rubber grease around the dust seal when rebuilding to keep it from going dry and rusting, but check the temp rating of the grease if you are going to drive fast.

Rear callipers are of course more complicated, but not really any ore difficult.

Lee

'77 GT4