[sal]

i just changed my fornt brake lines and have been bledding the for an hour and still dont have any pressre. dose anyone know what the problem is?

 

[firstraptor]

Had a the same problem, pumped them for some time before I got the fluid to move. Seems that the air in the line is enough to keep the fluid "stuck" in the mastercylinder. At least that the impression I had.
Been told a few tricks since, one is to open the bleader and walk away, check it on occasion to be sure the resivour has fluid. Another is to use a syringe to push fluid into the caliper and up to the mastercylinder.