oxford
Jedi Hopeful
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Hi everyone
I am having the Devil of a problem bleeding the brakes on my BN4.
The fronts are drum.
I have a new master cylinder, new slaves on the front and rebuilt rears.
There are no leaks.
The shoes are adjusted so they can just be heard rubbing on the drums.
After endless bleeding the pedal just goes to the floor. Even after pumping there is no pedal and sometimes the brakes seem to work at the bottom of pedal travel, sometimes not.
I am using DOT 4 fluid.
I have been pressure bleeding using my compressor on a very low PSI. this seems to get the air out of the system, but if I do it the 'old fashioned way' with a faithful helper on the pedal, I seem to be continuously pumping air with the fluid. It's almost as if air is being drawn into the system.
I tested the MC by blocking off the outlet with a bolt and the pedal was rock solid. I also bled the MC by fitting a hose to the outlet and into the reservoir.
I'm thinking there is something wrong with the MC, but I'd like to know before I lash out and but a new one.
This is driving me (no pun intended) to distraction. No matter what I do I can't get any pedal.
Anyone got any brilliant ideas?
Cheers
Matthew
I am having the Devil of a problem bleeding the brakes on my BN4.
The fronts are drum.
I have a new master cylinder, new slaves on the front and rebuilt rears.
There are no leaks.
The shoes are adjusted so they can just be heard rubbing on the drums.
After endless bleeding the pedal just goes to the floor. Even after pumping there is no pedal and sometimes the brakes seem to work at the bottom of pedal travel, sometimes not.
I am using DOT 4 fluid.
I have been pressure bleeding using my compressor on a very low PSI. this seems to get the air out of the system, but if I do it the 'old fashioned way' with a faithful helper on the pedal, I seem to be continuously pumping air with the fluid. It's almost as if air is being drawn into the system.
I tested the MC by blocking off the outlet with a bolt and the pedal was rock solid. I also bled the MC by fitting a hose to the outlet and into the reservoir.
I'm thinking there is something wrong with the MC, but I'd like to know before I lash out and but a new one.
This is driving me (no pun intended) to distraction. No matter what I do I can't get any pedal.
Anyone got any brilliant ideas?
Cheers
Matthew