front Brake losing pressure
Ok so heres the dealio, I bought a 06 636, the guy installed ss front brake lines, and it has always been spongy, and just kept getting worse. Las weekend I rebled the brake lines, and it was perfect for a day or two, then it got spongy fast, and lost nearly all its pressure in a few days. I thought maybe I didnt tighten the top bleeder nipple very tight because it looked like it was leaking ever so slowly out the top. I rebled them, and this time cranked the top bleeder nipple down (I now know after reading this was a mistake) and I can feel them starting to loose pressure.
How do I correct this? I imagine the previous owner tightened it down too much previously and now I need a new master cyl?
2006 r1 50th anniversary- BMC race filter, Graves Velocity stacks, AIS removed, Power Commander III USB, Two Brothers Carbon-Fiber pipes, Akrapovic Y pipe