ok so its a wet day here in the deep southso i decided to change the front brake pads on my mistral, took the old one out and pushed the plungers back in with a g clamp fitted the new pads , started it up and pushed the brake pedal down and pumped it a couple of time expecting it to come up tight and it doesbut then slowly goes back down, like there is air in the system, so have bleed the brake front and rear no difference still a spounge pedal, brakes work but pedal goes right down, any ideas of what i have done is there some thing in the master cly i have pushed out of place! an ideas
bert37,
Nov 28, 6:10pm
oh no air in the system and no leaks are visable
thunderbolt,
Nov 28, 6:43pm
Sounds like the master cyl seals have failed, possibly by being pushed over a corroded cylinder bore. Try clamping front and rear hoses, if pedal is hard it's not the master. Then release each clamp and retest until you isolate problem area
toyboy3,
Nov 28, 6:49pm
Pushing the fluid back into the mastercylinder is a bigNO NO. Anyway, first check the pads are the correct ones , then make surethey are correctly seatedand the slides are free in the calipers . then replace the master cylinder
bert37,
Nov 28, 10:30pm
ok sorted thanks guys, was a wee burr on one of the pads that made it bind, few strokes of the file solved the problem
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