so after doing a brake job and bleeding my brakes, I noticed my pedal still went to the floor unless I pumped it. for some reason I was stupid and replaced the brake master cylinder

turns out my upper pistons are failing on one of my brembo's in the front, and the other one needs a rebuild kit badly

will the rebuild kit fix my issue or is that caliper done?

it looks like fluid is leaking out from behind the failing pistons. is this just a seal that needs to be replaced?


Tia

 

As long as pistons are in good shape (which most likely they are) you can just buy the seal and dust ring kit and rebuild them .

 

^
Cool thanks!

are there any how to's on rebuilding them?


Now to get a rebuild kit before Monday so i can go to the track :-/

 

Take the calipers off the car and get some compressed air as it is the easiest
way to get the pistons out. Be VERY careful while doing this, as the pistons tend to shoot out.

Use a block of wood to prevent any damage to your hands or the pistons.

Call Giro Disc and get the rebuild kits, and re install. Lube the pistons when you go to put them in and MAKE SURE that they are even and just press em back in.

I used a c clamp and one of those round spark plug gap tools over the piston as it is the perfect size. You must you equal pressure across the piston to get her back in. GL.

 

^
Thanks

 

To retain the fluid in your system when you remove the caliper...use a valve stem. Just wedge it where the banjo bolt comes out of. I would rebuild all of em too. Kits are pretty cheap.

 

besides Girodisk (they want $70 for overnight) where can I order the kits from?

thanks for the info, its much appreciated!

 

When I was in a pinch, Martin was the man. Its where I ordered mine from...sorry.

 

I just gave em a call and am waiting for a call back,....I'll do it if it means I can go to the track day.

 

try $hitsubishi stealership, they might have these parts. the rebuild is pretty simple, i found out the hard way last time i did my brakes :P also, i better not find hella $hit missing/swapped from my car when i get back...

 

LOL that was my back up plan! your not using those calipers at the moment.........I called and every dealer in the game doesn't have them. the rebuild kit form the dealer is like 165 a caliper anyway


currently waiting for call back from Works and Girodisk

 

girodisc hooked it up! the price on the web site is wrong (for shipping)

although I could have taken my chances with ground because they are so close i choose to pay 20 bucks more for guaranteed overnight

 

That made me spit iced tea all over my laptop screen lol still so funny.

~Sean

 

Those in the same boat may also consider Centric rebuid kits for Brembo calipers - those are much cheaper and are visibly excellent (I will rebuild mine in week or two, so will see whether they are as good practically, but there are a lot of good reports on them al over the web).

 

montu, how many miles does your car have?