Ducati Sporting Club UK > Model Specific - Discussion, Technical Problems and Help > General Motorcycles only > MOT failure!! rear brake has no pressure!!

[Chief R.B.]

Ooh err missus...!!

cheers Frank!, ill give that a try.

[Chief R.B.]

Ok, been trying to bleed the air out all night i get so much out and still more air. Can't find any leaks and ive completely drained the system,started again, got a small amount of oil coming out constantly but no where near enough to create any pressure at the brake lever.. so i start the process again, pump the lever,hold it, open the nipple and get air coming out and then a small amount of oil again.

No change in the amount if air though and ive repeated it countless times.

Anyone got any ideas???

Thanks

ant

[Iconic944ss]

Bad luck - sounds like a seal may have gone.

I'd suspect master cylinder first rather than a caliper seal but I stand to be corrected. A full strip down sounds in order and the master cylinder is where I'd be starting.

Frank

[Tonio600]

As Franck said, if your rear brake in USD mounted, you need to reverse it when bleeding it. I don't think you need to have it higher than the master cylinder (I never had to anyway...) but for sure you want the bleeding bolt to be at the top of the caliper...