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Author Brake Problem - No pressure, even after bleeding several times?!?
Nath
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Registered: 3rd Apr 02
Location: MK
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7th Feb 04 at 17:56   View User's Profile U2U Member Reply With Quote

I fitted 2 litre brakes today but i'm having no luck getting any pressure on the brake pedal. Me and my dad must have bled them about 20 times but its still soft, it goes right to the floor then slowly gets harder. Problem is after 10 seconds of the pedal getting harder it goes right to the floor again.

Air is still in the system somewhere but surely after bleeding it 20+ times the air wouldve gone??

Could it be the cylinder on the calliper? Maybe its not air tight around the seal?



Nath
Adam-D
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Registered: 11th May 02
Location: Cheshire
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7th Feb 04 at 18:03   View User's Profile U2U Member Reply With Quote

could be?
could also be your master cylinder is on its way out and this killed it?
did u only bleed the front brakes?
u hve to do the whole lot in a certain sequence
Adam-D
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Registered: 11th May 02
Location: Cheshire
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7th Feb 04 at 18:07   View User's Profile U2U Member Reply With Quote

also is threre any leaks?
Nath
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Registered: 3rd Apr 02
Location: MK
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7th Feb 04 at 18:11   View User's Profile U2U Member Reply With Quote

No leaks and no i didnt try doing the rears. Didnt think it was necessary. Doesnt say that in Haynes.

Master cylinder? Easy to sort out?
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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7th Feb 04 at 18:14   View User's Profile U2U Member Reply With Quote

yes you will need to bleed the rear brakes, there is 2 circuit and they go in diaganal, front left and back right on one the front right and back left on the other, bleed the rear brakes then try again. you will still be soft as they always are just shouldnt touch the floor
Nath
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Registered: 3rd Apr 02
Location: MK
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7th Feb 04 at 18:21   View User's Profile U2U Member Reply With Quote

You reckon thats whats wrong then Kris? I was expecting it to be spongey but not this spongey, lol.
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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7th Feb 04 at 18:22   View User's Profile U2U Member Reply With Quote

Sounds like youve fooked the seal in the master cylinder. I HOPE you didnt push the pedal right down to the floor when you were bleeding cos thats what nackers them usually... Supposed to go only 3/4 max. Sometimes if you jab the pedal you can get it to flip back the other way. Are you loosing fluid from anywhere?
Greg_M
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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
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7th Feb 04 at 18:23   View User's Profile U2U Member Reply With Quote

fit braded hoses will improve by miles
Mav 3000
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Registered: 16th Aug 01
Location: Leicestershire
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7th Feb 04 at 18:24   View User's Profile U2U Member Reply With Quote

^ Agree. When I did mine I bled the whole system using an electronic pressure thing pumping new fluid in, but didn't do it perfectly so bled the fronts again - this time manually - and it worted it.

When I bled it the first time I heard the air in the rear drums.
Nath
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Registered: 3rd Apr 02
Location: MK
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7th Feb 04 at 18:24   View User's Profile U2U Member Reply With Quote

Sounds like i fucked the master cylinder then. I was following instructions from a website i found and it didnt say otherwise. My dads mechanic mate never said not to go fully down either

No fluid leakage at all. First thing we checked was for a leak.
Greg_M
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Registered: 2nd Sep 03
Location: Grantham, Lincolnshire
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7th Feb 04 at 18:28   View User's Profile U2U Member Reply With Quote

it'll prob be master cylinder mate sounds like it from above ^^^^

i would get braded hoses mate, only cost 40, fit em, and then bleed system properly and top up system

[Edited on 07-02-2004 by Greg12v]
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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7th Feb 04 at 18:29   View User's Profile U2U Member Reply With Quote

If I were you i'd give it a couple more go's at bleeding and then hand it to a garage to check it... What bleeding method are you using? I found the two man method is always best, dont trust these cheapish kits...
Kris TD
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Registered: 25th Mar 02
Location: Ware, Hertfordshire
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7th Feb 04 at 18:30   View User's Profile U2U Member Reply With Quote

no its the rear brakes got air in it, check them first.
AdamF
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Registered: 24th Apr 02
Location: Bexhill, East Sussex
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7th Feb 04 at 18:49   View Garage View User's Profile U2U Member Reply With Quote

no need to bled rears unless you let all the fluid drain form the master cylinder. if you put the caliper on then pushed the piston back in the caliper to fit pads and did it to fast you may well have fooked master cylinder
BeArDy
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Registered: 7th Aug 00
Location: Manchester
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7th Feb 04 at 18:56   View User's Profile U2U Member Reply With Quote

have your got the calipers the right way up?
as in bleed nipple to the top?

the way to bleed then it
Right hand rear brake
Left hand rear brake
Right hand front brake
Left hand front brake


[Edited on 07-02-2004 by BeArDy]
Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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7th Feb 04 at 21:03   View User's Profile U2U Member Reply With Quote

as beardy said are u sure the right way around ive heard a few people with the same probelm they just had the left on the right and vice verse

think the bleed nipples should be on the top??
Ryan L
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Registered: 4th Mar 03
Location: Essex
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7th Feb 04 at 21:18   View User's Profile U2U Member Reply With Quote

i had the exact same problem as Nath

Turned out i had calipers on wrong way
Nath
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Registered: 3rd Apr 02
Location: MK
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8th Feb 04 at 00:34   View User's Profile U2U Member Reply With Quote

PMSL!! Sounds like my callipers are on the wrong way round. How bizarre!?!

I thought they'd be semetrical(sp).

I shall try swapping the callipers over first as thats the easiest solution. Then if i have no luck i'll bleed all FOUR brakes, if i still have no joy then its off to a garage..................very slowly.............
Drew
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Registered: 24th Nov 01
Location: County Durham
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8th Feb 04 at 01:30   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by BeArDy
have your got the calipers the right way up?
as in bleed nipple to the top?

the way to bleed then it
Right hand rear brake
Left hand rear brake
Right hand front brake
Left hand front brake


[Edited on 07-02-2004 by BeArDy]

actually the order is...

Right Rear , Left Front , Left Rear , Right Front .
or
Left Rear , Right Front , Right Rear , Left Front .

Nath
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Registered: 3rd Apr 02
Location: MK
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8th Feb 04 at 16:51   View User's Profile U2U Member Reply With Quote

All sorted............Turned out i had the callipers on the wrong side of the car. Why that makes any difference i do not know

Need bleeding a couple more times i reckon, still a little spongey.

Thanks for everyones help
Adam-D
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Registered: 11th May 02
Location: Cheshire
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8th Feb 04 at 17:55   View User's Profile U2U Member Reply With Quote

your welcome always glad to help anyway i can
Adam-D
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Registered: 11th May 02
Location: Cheshire
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1st Mar 04 at 17:39   View User's Profile U2U Member Reply With Quote

ha ha
just fitted mine
Nath
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Registered: 3rd Apr 02
Location: MK
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1st Mar 04 at 21:45   View User's Profile U2U Member Reply With Quote

I wondered who the feck topped this post and why! Pretty good when warm arent they? Especially if you push the pedal hard.
ainsley_brader
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Registered: 24th Mar 02
Location: Tattershall, Lincolnshire
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2nd Mar 04 at 21:00   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Drew
quote:
Originally posted by BeArDy
have your got the calipers the right way up?
as in bleed nipple to the top?

the way to bleed then it
Right hand rear brake
Left hand rear brake
Right hand front brake
Left hand front brake


[Edited on 07-02-2004 by BeArDy]

actually the order is...

Right Rear , Left Front , Left Rear , Right Front .
or
Left Rear , Right Front , Right Rear , Left Front .




Actually you start with the furthest from the master cylinder so on a corsa would be:

left rear
right rear
left front
right front
Adam-D
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Registered: 11th May 02
Location: Cheshire
User status: Offline
2nd Mar 04 at 21:04   View User's Profile U2U Member Reply With Quote

update....
went out today still pedal half way down before any feel
and brake light comes on when turning corner
got home topped up fluid
and pumped pedal
and there solid now yay

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