Astra GTE Brake Problems

[DannT]

Hi people, spent the day upgrading my GTE brakes from the early GMF calipers,master cylinder and servo to the later ATE kit, blead the brake using my eeze bleed kit and I haven't got any brake pedal just goes straight to the floor so I swooped back to my old master cylinder and servo re-blead the brake's the pedal still goes straight to the floor, has anybody got any idea what I'm doing wrong. Any ideas gratefully received.

[Astra Dan]

Nipples at the top? Try crimping all 4 hoses, then letting one off at a time to eliminate each caliper.

[Vinci]

Definitely swapped left and right front calipers.... Been there...

[DannT]

Cheers Lads, thanks for the replays I'll get the spanners out again on Saturday and check.

[DarrenH]

additionally, had these symptoms (or rather someone else had, which i spotted) due to the caliper spring being on backwards, pushing the carrier and caliper appart, instead of pulling them together. (so every time you took foot off pedal, spring was compressing caliper piston, then when you reapply pedal you are taking the slack back out and pedal goes to floor)

[Astra Dan]

Oooh, good call Darren. Amazing what difference that little spring makes.

[Vinci]

additionally, had these symptoms (or rather someone else had, which i spotted) due to the caliper spring being on backwards, pushing the carrier and caliper appart, instead of pulling them together. (so every time you took foot off pedal, spring was compressing caliper piston, then when you reapply pedal you are taking the slack back out and pedal goes to floor)

How does this work? I have fitted new brakes two days ago and also have the pedal to the floor problem now....

Astra mk2 GTE with Calibra turbo brakes questions

Here's how they are fitted now:

[Vinci]

Okay, that looks like the problem then!!

[Vinci]

Problem solved, and with extra special thanks to Darren! Wonderful mate! Would never have thought of that....