Guys,
I just took apart one of my Z32 calipers intending to sent them to get powder coated and then rebuld them with a seal kit I ordered from courtesyparts.com I followed this write up (which was excellent)...
http://www.importfanatix.com/Forums/...p?t=584&page=2
I attached my air source to the port where the brake line went and popped out my caliper's pistons, but only 1 piston came out fully and all the other 3 remained basically seated. So with 1 piston out the air had an way to escape and I could no longer use air to pop the remaining 3 pistons out.
Thus the only way I thought to remove the 3 remaining pistons out were remove the dust covers off each, then put a cloth over the exposed top of the piston and use a vise grip to wiggle the piston out. Twisting back and forth for almost 5 mins each the teeth of the vise grips gouged the outter edge of the pistons (where the dust cover went over). On two of the pistons I made some gouges on the piston's outside smooth surface just below where the dust cover covers. I believe these gouges are above the sealing piston o-rings so I believe the gouges wont affect performance or reliability. But I would like your opinions and recommendions as to the condition of the 2 gouged pistons and if they are still usable.
Also if I am removing them correcly with vise grips since I have another caliper left in the same state with 1 piston popped out and the remaing 3 still seated in the caliper.
Your help is appreciated!
Will