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Brake problem...

Posted: 20 Apr 2006, 18:07
by badger
My problems all started after i replaced both front callipers following MOT failure (o/s piston seized).
After bleeding the system, all felt ok, but after leaving the van for a few days and then attempting to use it, found the pedal dropped to the floor.
Thought at first maybe I hadn't tightened something up correctly, so re-checked all connections, re-bled system and all seemed ok again.
Few days later, pedal was soft again, so I replaced master cylinder, bleed system again and all ok....or so I thought. After a few days, pedal was soft again.
So, checked all flexibles and found a small bubble in one of the pipes - so replaced both front flexibles, re-bled etc....still the bl**dy same!
Each time I bleed the system, I can see air in the bleed tube at both callipers, but for the life of me can't suss out how air is getting into the system.
HELP!

Posted: 20 Apr 2006, 18:26
by lhd
Just checking that you are using the top bleed screw and not the bottom drain screw (easy mistake to make).Have you tried using a pressure bleeder?
lhd...................

Posted: 21 Apr 2006, 06:27
by badger
deffinitely using top bleed screw, not tried pressure bleeder though, think it would make a diffeence?

Posted: 21 Apr 2006, 10:19
by tobzman
Pressure bleeders are fantastic bits of kit, I would highly recommend them, a very easy way of completely replacing your brake fluid. However it definately sounds like you have a leak somewhere, once you have a pressure kit hooked up to your system it might make the leak bubble very slightly making it easier to find.

?

Posted: 21 Apr 2006, 10:22
by ladyeleanor
where do we get these kits from and how much are they?
cheers

Posted: 21 Apr 2006, 10:27
by tobzman
I paid about £15 for mine from a typical generic motorspares shop.
They are made by gunsons and called 'eazibleed'