Not Ranked
Clois is right you must bench bleed a mc first which many do not. The damage can occur by pushing the piston too far into the cylinder. Many MC's are not polished inside the bore past the point of natural extention of the piston. Many have a ridge inside. When you pump bleed you typically depress the pedal to the floor. The o-rings can become scraped and allow fluid to pass. This too will cause a sinking pedal.
|