I'm having an issue with my Wilwood master cylinder. The car also has the 4 piston Wilwood dynalite calipers.

Pretty much nothing comes out when its mounted on the car and the pedal is pressed.
Took it apart and all the seals and pistons look fine.

Not sure whats up, or if i'm doing something wrong.

I tried to bench bleed it again today.
Looks like I can actually get fluid to come out of the hoses. Bubbles would come out of the tubes that were going back in to the resevoir and stopped after about 5 minutes of manually pressing the piston.
Thought all air would be out so I hooked it back up on the car and nothing..

The pushrod seems to be the correct length aswell.

What exactly is the procedure to hooking up a bled master to empty brake lines and then bleeding?? If I depress the pedal and get someone to open the bleeder the fluid level doesn't go down. Wilwood 4 piston calipers with 2 bleeders on top. The instructions on the wilwood website seem to suck.


Thanks
Mike

 

thats what you need to do. I never bleed brakes with the brake pedal. Bench bleed the master, and hook it up to the brake lines, then go to one wheel at a time with a vacuum bleeder, manual pump or power, whatever you want, and pull the air and fluid through the lines. Be sure to keep the reservoir full at all times.