heliosphan
Post #1
This relates to my father's 106 diesel but the principle is the same as a 6's set-up, I imagine.The car is left overnight, like normal.
It's started in the morning to go to work and the brakes need a massive effort to stop the car. Same as a non servo assisted car: if anyone's ever driven an early Mini, with no servo & drums all around, you'll know what I mean.
This only happens for the first few hundred metres/less than a minute of driving. Afterwards, the brakes operate normally. I've tried the car and the brakes feel perfectly good (for a 106 of this type) so the servo must be working by this stage. Yet initially, they're awful.
Info:
Master cylinder is new.
Front pads are new.
Rear cylinders are new.
Rear shoes are new.
Fluid is new, twice. No air.
One caliper is new.
Questions:
Vacuum hose *seems* OK: not perished/cracked etc. Could it be just the seals?
Is it likely that the pump has failed? Remember that the car has normal-feeling brakes just 200 metres down the road...
Is it the servo that's losing air slowly while stood overnight, and taking a minute to build up it's vacuum after the car's just started?
After the initial bite has come back to the brakes, they work fine for the rest of the day: even after the car's been turned off. Even after a normal 8-odd hour stint in the office car park twiddling its thumbs/wheels, it's fine.
When sat overnight (more like 10 to 12 hours), all is not fine.
Cheers guys.
Posted 28th Sep 2012 at 12:35
