i am getting my calipers powdercoated and obviously need to remove the pistons from the calipers. not really sure on the proper way to do this. i was just thinking of removing the caliper, then the brake pads, and then getting inside the car and pressing the brakes which will the compress the pistons. does this sound about right?? thanks for any help

adam

 

I think most people leave them in the heat is not going to hurt them. just tape off before you spray the powder on.

 

Use compressed air, small shots of air.

 

May be obvious but it helps to take out bleeder fitting so as to have a place to blow that air

 

one would assume that the op has taken the caliper off the car so you would put the air in where the banjo bolt enters the backside of the caliper,no need to take the bleeders off

 

enjoy...!

http://club4g.org/board/suspension/9...breakdown.html

 

^that is awesome, now i need a spare set of brembos....

 

OP, what color do you plan to powdercoat your calibers? Are you doing it yourself or having a shop do them?

 

You can use compressed air but be very careful! put a pice of wood between the opposite facing pistons and barely give it air and watch your hands! If you give it too much air it will shoot out faster and with more force than you can imagine lol

 

You have to remove them because of the o-rings and the dust seals.
I powdercoated mine a couple of years ago. It is real simple. Take a board or something similiar stick it between the pistons but leaving enough room to remove two at a time. One side at a time. Remove the brake bleeder on one side and put 30 or so psi to it and that side should pop out. Then go to the other side and do the same thing. If only one comes out push it back in and try again. Its an art form just work with it. If you need more air just turn it up a little at a time.
Did you get the brembo stickers to put back on afterward? When you get them back from powdercoating just clean them off and stick them on and spray them with caliper paint clear coat or the high temp clear and your good to go.!!!!!

HAVE FUN!!!!

 

Very true. I've just stuck my hand in the middle and gritted my teeth; but it hurts.

Make sure to wear eye protection (or close your eyes). You'll probably shoot out brake fluid during the process too. Take the opportunity to flush out the system while your at it.

 

having done this in every way possible, the best way to do it is to leave the pistons in the calipers and just tape it all off.

first set were the ones on my street car, i completely disassembled them, even the caliper halves. went back together but they creek really loud and sound terrible. brake feel has never been as firm after even with extensive bleeding

next, i tried doing them by removing the pistons only... this also isn't a good method because unless your powdercoater is amazing, your going to get sand and grit in the pot from sand blasting them. also, by doing this method, you can tear the piston boots which are expensive to replace, and any scratching of the piston can cause brake feel issues as they are extremely tight tolerance. this method does work, i just think leaving them all together except for the bleeder valves (remove them and plug the hole), and taping off the pistons works the best.