H13X JW
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Registered: 16th Apr 04
Location: Sunny Old Teeside
User status: Offline
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Hi, i fitted some 16v discs n callipers etc to my '93 1.4 corsa B SRi and the peddle (sp?  ) has gone un-believably soft. I can seem to press it down for ages with nothing happening then all of a sudden they work properly. There doesn't appear to be any air in the system as we bled them about 4 times.
Does anyone have a clue what could be wrong. I was thinking that the master cylinder aint up to it but last time i asked every1 sed it would be fine on the current cylinder. Cheers for any help ppl, 
[Edited on 23-01-2005 by H13X JW]
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modded_corsa
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Registered: 9th May 03
Location: Middlesbrough
User status: Offline
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the brake union and bleed nipple most probably need to go the other way round
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H13X JW
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Registered: 16th Apr 04
Location: Sunny Old Teeside
User status: Offline
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The bleed nipples are at the top on each side Is that the wrong way round
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corsa_sri04
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Registered: 2nd Jul 04
Location: stourbridge
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thats the right way
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H13X JW
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Registered: 16th Apr 04
Location: Sunny Old Teeside
User status: Offline
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Cheers corsa_sri04 i thought it was. Does anyone know if i can uprate the master cylinder say to a vectra 1 or will i hav problems due to my lack of ABS?
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stevegreetham
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Registered: 30th Oct 03
Location: Grimsby/Sheffield
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how do you bleed them? always been unsure
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Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
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did you bleed the backs too? common mistake that people only bleed the fronts when changing them.
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H13X JW
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Registered: 16th Apr 04
Location: Sunny Old Teeside
User status: Offline
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No i didn't bleed the backs M15T XE  We didn't think it would affect it, I will have a go at that sometime this week. Hope that fixes it. Thanx .
Stevegreetham we just used the jam-jar method: Partly fill an empty jam jar with new brake fluid and put it higher than the level of the caliper, get a piece of thin hose from B&Q attatch it to the bleed nipple on the calliper and submerge the other end in the fluid. Then just pump the peddle slowly and watch the air move up the tube into the jar, topping the fluid level up in the resevoir.
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Mistamist
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Registered: 16th Jul 03
Location: Gillingham, Kent
User status: Offline
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that will probably be your problem, there are essentially two circuits on the braking system, Front Nearside- Rear Offside and Front Offside-Rear Nearside, bleed them in this order as well.
they do this so that if one of your brake hoses split, you still have braking on two other wheels.
Good luck
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