Please Help !! Brake System Probs

[Novette_71]

dear friends,

i have a problem with my brake system and it is killing me. i cannot fix it and i dont know what to do next.

my nova has :

- brembo 4 piston calipers front
- corvette C4 calipers rear
- brake proportioning valve in middle console
- brandnew booster
- brandnew wilwood mastercylinder
- stainless steel hoses D-03


i bench bleeded the master cylinder. i bleeded the whole system like you normally do it with a partner .... open caliper valve - push pedel - close valve - release pedal .....

problem is when you release the pedal you have lots of bubbles in the rear chamber of the master cylinder. i have no braking power on the rear wheels. if i jack up the car and go into D with engine running, the rear rotors rotate although i am on the brakes (a bit slower but they do rotate). my braking power was poor in general.

now i switched to stahlbus(.com) valves .... they allow bleeding the system without a partner so everything should be just fine. i even added these bleed valves at the master cylinder.

now at the calipers in the rear there comes pure bubblefree fluid out of the system. the master cylinder (see video 2 mentioned below) shows the same thing .... but still i have no braking power.

also bad is that the air that is released builds up an overpressure when i have the reservoir closed .... because when u open the wilwood cover, you hear how the overpressure is being released.

i tried bench bleeding, "bench bleeding" with MC installed in the car, reverse flushing the MC, old school bleeding with partner and new style bleeding with these special bleed valves ..... WTF.

anyone ever had such a problem ? can you check my youtube vids i am so frustrated.


https://www.youtube.com/watch?v=biiWK5kG1LU

https://www.youtube.com/watch?v=gim7We8N3j8