Hi all,
I have a 1976 Fj55 that I am converting to rear disk brakes. I am using rotors from trail gear and GM Camaro calipers. I am running into issues with a spongy pedal that goes all the way to the firewall. I have the stock MC installed with new seals, and also verified that it was working properly pre-conversion. I have bled the system many times with the standard 2-person method and with a vacuum bleeder. The flow out of the bleed points is clear of bubbles every time. No matter what I do the vehicle stops slowly with a super soft pedal feel that goes all the way to the floor. The booster push rod seems to be set correctly as I found by capping off the line to the rear brakes and depressing the pedal, the pedal immediately stops moving without much free play.
Has anyone had experience with this, my next thought is to try a MC with a larger piston size to increase the volume to the rear.
I have a 1976 Fj55 that I am converting to rear disk brakes. I am using rotors from trail gear and GM Camaro calipers. I am running into issues with a spongy pedal that goes all the way to the firewall. I have the stock MC installed with new seals, and also verified that it was working properly pre-conversion. I have bled the system many times with the standard 2-person method and with a vacuum bleeder. The flow out of the bleed points is clear of bubbles every time. No matter what I do the vehicle stops slowly with a super soft pedal feel that goes all the way to the floor. The booster push rod seems to be set correctly as I found by capping off the line to the rear brakes and depressing the pedal, the pedal immediately stops moving without much free play.
Has anyone had experience with this, my next thought is to try a MC with a larger piston size to increase the volume to the rear.