iam putting new pads on and my rear calipers.their piston is frozen.. it wont go all the way in so i can install the new ones, the fronts were really stuck so i had to pry them open (the pistons) to install the new ones how do i get the rears to open.. both bleeders are open any help thanks

 

btw 88 vert.

 

The rear pistons turn clockwise, they are not pushed into the bore. If they won't turn, time for another set. Same as fronts, if you find the pistons push in extremely hard, better replace them, or they will freeze in the bores. Chances are it's the lower pistons on the fronts if 4 piston calipers.

 

yea i just replaced my pads and rotors yesterday, you gotta spin the rear pistons clockwise to make em go in and ur gonna have a hell of a time bleeding those btw.........i couldnt even do it......jeez good luck

 

Yeah, one of these makes the job much easier.

 

what happens when they freeze in the bores?(no brakes???) they turned but kinda tough although i didnt have proper tools it wasent that easy... also the rear calipers have two bleeders do both of these need to be bleed? or is it for convenince?

 

I tried using that. It did nothing for me. I had to take the calipers in to the shop I work at and one of the brake guys had a special corkscrew looking device that braced against the plate that the pad sits on. Guess its time for new ones, or a rebuild. Has anyone used that rebuild kit from racing beat? how difficult is the process?

As for those duel bleeder valves, I'm not sure what the bottom one is all about, but I was able to bleed mine using the top one only.

 

Having the pistons freeze in their bores will cause the pads to stay against the rotor, and not release. The pads will wear quickly, and cause binding. A way to check is that at a light, or stopped, the car should roll very easily, forward or backwards with the clutch in. If the car doesn't roll, the brakes are creating resistance. I'm not speaking of being on a hill, just flat pavement and the car will roll into an indentation in the asphalt, or a groove in the cement.

As far as the bleeders, the top is used to bleed an already existing system, while the bottom, then the top are used to bleed a new caliper installation.

 

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hmm, I forgot no html. Here.

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yeah you can. your supposed to use [img] addy [/img]