Mud-club
Vehicle & Technical => Defender => Topic started by: BPM on May 13, 2010, 18:14:32
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Just had new wheel cylinders and rear shoes fitted, then vacuum bled the whole system with new fluid. Now the pedals really low and if you pump up the brake pedal and keep it pressed then the pedal goes back down if you keep the pressure on, it shouldn't do that should it? do you think the vacuum bleeding has blown the master cylinder?
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It is possible that the master cylinder has had it, first try checking to see if the rear shoes are fitted correctly, the return spring at the bottom of the shoes should be connected to the leading shoe and the back plate, it is common for people to put this spring on in correctly by fitting it between both shoes, this compresses the slave cylinder too much resulting in a very long pedal that gets higher as you pump it but returns to being long when released. also check shoe adjustment and try to manually bleed them, start at the furthest wheel from the master cylinder use hose clamps on the other three wheels then bleed that one, moving round until you end up at the wheel closest to the master cylinder. hope this helps :-k