4x4 saph, just tried bleed the brakes back up, cant get a firm peddle.
i ran silicone fluid before, Had all the calipers re sealed, any chance ive fucked up the master cylinder ?
All bled correctly.

Cheers

 

was the master cylinder dry?

 

not sure, possibly as all the brake lines have been off, but everthing in the engine bay stayed on.

 

sometimes it can take a while to get air out of the master cylinder

 

This weekend my sapph 4x4 actually developed a problem with the ABS valve block. In your case it could also be caused by that. Some valves in the valve block can actually direct the fluid back to the reservoir, so if those valves are open (which they normally shouldn't be) you will not get fluid pressure at the calipers.

Do your brakes actually work, but it is the pedal spongy? In that case I think there will still be air in the system.

 

yeah i can get brakes but pedal goes down, i can get half a pedal if that makes sence, i was told silicone fluid knackers the seals,