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166 Posts
Discussion Starter · #1 · (Edited)
So I installed a BBK on my RS this weekend and all was going well until pressed down on the brake pedal and brake fluid started squirting around in the Master Cylinder. Weirdest thing I've ever seen, I'm thinking there may still be air in the system? The brake pedal didn't feel rock solid and it felt more like a stock rs pedal. Can't drive the car on the road because its been up on jack stands since last sept.... project car. Anybody ever run into this?

Here's a vid:
http://www.youtube.com/watch?v=VBmwYuAsKKk

Info:
Car- MY00 RS
ABS- Yes
Brakes- Wilwood 6/4 pots
Brake Fluid- ATE Super Blue
MC- '05 STi MC & Booster
Bleeding Method- Used a Power Bleeder and started furthest from the MC.
http://store.nexternal.com/shared/S...reType=BtoC&Count1=646114528&Count2=563254952
 

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166 Posts
Discussion Starter · #4 ·
Thats the thing though the cover is on and that still happens, never seen it before. I also did not realize that subaru has a specific bleed order, so I'm going to try to rebleed tonight and see if that solves the problem.

I don't really understand what your describing, fluid squirts upward in the resivor when the cover is off? If thats what your describing that is normal an happens on alot of cars but your brakes still might need a good bleeding.
 

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95 aegean blue L from hell
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no bleed order..you always start bleeding the furthest caliper from the master. then to the closest.

or its very possible that the new master you have has a secondary/primary seal blown out so it doesnt contain/pressurize the fluid and is forced back out the replenishing ports hence the squirt back in the resevoir and soft pedal feel.
 

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98 OBS, Black/Grey
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3,187 Posts
no bleed order..you always start bleeding the furthest caliper from the master. then to the closest.

or its very possible that the new master you have has a secondary/primary seal blown out so it doesnt contain/pressurize the fluid and is forced back out the replenishing ports hence the squirt back in the resevoir and soft pedal feel.
according to this pdf there is a bleeding order. RF->LR->LF->RR

http://savefile.com/files/1723521

EDIT - heres a link for bleeding procedure from the RS FSM

http://www.savefile.com/files/1723532
 

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166 Posts
Discussion Starter · #13 ·
I spoke with Jamie and I ordered a rebuild kit yesterday. It looks rather tedious, lots of small pieces and what nots go in there. But I've gone through the trouble of fixing and replacing most things on the car already....whats one more part gonna hurt. Either way I'm still waiting on my tires so its not a major set back.

+1 Never seen that before...im guessing a seal is blown but not 100%, I have no idea if suabru master cylinders can be rebuilt or not but on most other vehicles its pretty cheap but time consuming and tedious.
 
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