Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
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I have fitted some bigger calipers and disks to my track car but can't seem to bleed the brakes. We have used new flexi hoses as well but still nothing. We have also had the caliper off and the piston does move. Fluid is moving as we keep having to top it up when we are trying to bleed them.
Any ideas?
[Edited on 03-11-2012 by deadliner]
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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There may be a leak in the system allowing air in. May well be on one of the new hose joints. Can you bleed 3 but not the other or cant bleed any?
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Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
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quote:
Originally posted by *CorsaCal*
There may be a leak in the system allowing air in. May well be on one of the new hose joints. Can you bleed 3 but not the other or cant bleed any?
I can bleed all so there is no air in them but still no pedal pressure. Is the bleed nipple supposed to be at the top or bottom?
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bigron1988
Member
Registered: 29th Aug 09
Location: Southport, Merseyside
User status: Offline
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Top as air will rise I there at the bottom they won't bleed up
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*CorsaCal*
Member
Registered: 3rd Oct 10
Location: Leicestershire Drives: 20XE Corsa
User status: Offline
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quote:
Originally posted by bigron1988
Top as air will rise I there at the bottom they won't bleed up
It is also posible that the seal in the master cylinder has failed when trying to bleed as the cylinder travels further than normal and may hit a slightly corroded/abrasive surface.
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Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
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quote:
Originally posted by bigron1988
Top as air will rise I there at the bottom they won't bleed up
Cheers Ron, that explains the problem
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VegasPhil
Premium Member
Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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Classic upside down caliper. I had this before 
Corsa 2.0 16v Vegas - Sold
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Jamie-C
Member
Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
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When I was bleeding my Corsa brakes I couldn't get a good pedal either no matter how many times I tried to get the air out. Block of wood and wedged the pedal down over night and the pedal was much better.
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Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
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quote:
Originally posted by Jamie-C
When I was bleeding my Corsa brakes I couldn't get a good pedal either no matter how many times I tried to get the air out. Block of wood and wedged the pedal down over night and the pedal was much better.
Calipers were upside down and now it's done. Pedal is shit and spongy though doesn't kick in till 3/4 of the way down. Reckon that piece of wood trick will work?
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Jamie-C
Member
Registered: 3rd Jun 08
Location: Ballycastle
User status: Offline
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It worked for me, my brakes were terrible and I wedged the pedal down against the seat for a day and they were much better. Give it a bash, over night should do it.
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Christopher
Member
Registered: 14th Oct 10
Location: Eastbourne
User status: Offline
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 Did the exact same thing deadliner! Spent a WHOLE 12 hours bleeding the brakes after fitting my 2.0l ones until realising we'd put them on upside down 
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corsadonk
Premium Member
Registered: 4th Jul 09
Location: Marlborough, Wiltshire
User status: Offline
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Are you bleeding them in the correct order? Also what front brakes have you got? 288's give a shit pedal travel.
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Martin W
Organiser: South East
Premium Member
Registered: 10th Aug 09
Location: Welling, Greater London
User status: Offline
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quote:
Originally posted by corsadonk
Are you bleeding them in the correct order? Also what front brakes have you got? 288's give a shit pedal travel.
288 callipers 280 discs
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Darryl H
Organiser: South Central
Premium Member
Registered: 19th Nov 09
Location: Camberley Drives: Porsche 944
User status: Offline
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288 with 280 disks is what I have, they're a bit spongy but they aren't so bad you can't feel pressure though
[Edited on 04-11-2012 by Darryl H]
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davegreen
Premium Member
Registered: 20th May 12
Location: Oxfordshire
User status: Offline
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have you adjusted the free travel between the pedal and servo? theres a adjuster nut where the pin goes through the pedal, get as little as possible free travel here and you should get better pedal feel! never great with bigger calipers but least youve got better braking effort.
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