Discussion Starter · #1 ·
I am trying to bleed my front breaks in the conventional manner using a clear hose attached to the bleed valve at one end and the other end flowing into a jar with a small amount of dot 4 fluid. When I pull on the brake lever the fluid flows well but doesnâ€™t built up pressure. My question is, does the master cylinder reservoir cover have to closed and sealed tightly for the pressure to build up or can it be kept open. In some posts I have gotten the impression that I should be adding fluid as I operate the lever to make sure the master cylinder reservoir doesnâ€™t become empty?