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| Home > Help Needed / General Tech Chat > Still having trouble bleeding brakes! | |||||||
 1451 Posts Member #: 328 Post Whore Seaford Rise, South Australia |
21st Aug, 2007 at 05:54:35pm
I mean are the pipes above the level of the master cylinder respective outlets? If the pipe is above the outlet an air bubble will form. If you have no leaks, the brake pads & shoes have not been changed and the pipes are not as described above then either you have a faulty master cylinder or you don't know how to bleed the brakes (not meaning to be overtly rude!). I seriously would consider the investment of an ezi bleed and if you cannot bleed it and get a good pedal with one of these then it can only be the master. On 5th Sep, 2011 Vegard said:
I stand corrected. You should know  |
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365 Posts Member #: 1211 Senior Member Working up the BHP ladder. |
21st Aug, 2007 at 09:08:34pm
On 20th of Aug, 2007 at 02:05pm 1380turbo said:
Rich, are you still using the sh*t brake equalizer valve bolted to the bulkhead? They can be an absolute nightmare! and also are you trying to lock the brakes with the wheels off the ground or driving? If what youre thinking of is what im thinking of the yeppers i still have it on there, basically a cylinder with the unions from the master cyl going inot the top and the pipes to the front/rear systems out of the bottom yeah? Could there be an airlock in this little tyke then? Thats the beastie Rich! Bled my brakes for 2 days before narrowing it down to that valve. Actually i had also just rebuilt the master cylinder. Unfortunately you can't service the valve and there bloomin expensive. Does the opposite wheel on that side of the system lock? Karl |
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 2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
21st Aug, 2007 at 09:10:14pm
Hi guys thanks for the replies!
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
21st Aug, 2007 at 09:14:38pm
On 21st of Aug, 2007 at 09:08pm 1380turbo said:
On 20th of Aug, 2007 at 02:05pm 1380turbo said:
Rich, are you still using the sh*t brake equalizer valve bolted to the bulkhead? They can be an absolute nightmare! and also are you trying to lock the brakes with the wheels off the ground or driving? If what youre thinking of is what im thinking of the yeppers i still have it on there, basically a cylinder with the unions from the master cyl going inot the top and the pipes to the front/rear systems out of the bottom yeah? Could there be an airlock in this little tyke then? Thats the beastie Rich! Bled my brakes for 2 days before narrowing it down to that valve. Actually i had also just rebuilt the master cylinder. Unfortunately you can't service the valve and there bloomin expensive. Does the opposite wheel on that side of the system lock? Karl Luckily I have a spare lying around that I know is working! Will fit it tommorow and see if it helps if nothing else does! Im pretty sure I have the front to rear system on mine. The diagonal system is where if one wheel locks the opposite end and side should lock too? If I do indeed have a diag split system then ive been bleeding it the wrong way according to the HBOL! Rich |
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365 Posts Member #: 1211 Senior Member Working up the BHP ladder. |
21st Aug, 2007 at 09:15:36pm
This should have made the pedal a little higher Rich but would not improve the feel. I have some bleed nipples in the garage somewhere which you could screw directly into the master cylinder to verify you have rebuilt it correctly. Once bled at this point the pedal 'should' barely move and 'should' be solid.
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
21st Aug, 2007 at 09:24:04pm
Ahh righty, yeah ive attempted bleeding the master cylinder by cracking the union and getting someone to push the pedal down and then doing the union back up, got fluid all over the place and eventually bubble-less fluid!
Edited by richminiturbo. on 21st Aug, 2007. |
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 1050 Posts Member #: 764 Post Whore Staffordshire |
22nd Aug, 2007 at 12:01:04am
are the rear shoes on the right way round? |
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 2521 Posts Member #: 417 Post Whore Swindon |
22nd Aug, 2007 at 08:16:18am
To check the master cylinder swage some ends on a couple of inches of brake pipe put the nut on then bend the end over to seal it,screw them in the master leave slightly loose press pedal once to let the air out,screw them up tight.Then if alls good the pedal will be solid.
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 2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
22nd Aug, 2007 at 12:28:35pm
If worse comes to worse you can do that at every point in the system until you find the point it goes wrong at!! Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
22nd Aug, 2007 at 06:30:26pm
On 22nd of Aug, 2007 at 08:16am Dangerous said:
To check the master cylinder swage some ends on a couple of inches of brake pipe put the nut on then bend the end over to seal it,screw them in the master leave slightly loose press pedal once to let the air out,screw them up tight.Then if alls good the pedal will be solid. Will give that a go! Got home from work and started taking the condensor off, first union on the top of it i started to do (right hand side) quite a bit of fluid started seeping out, along with a fair few medium sized bubbles! Not loads but bubbles none the less! Hopefully this means the condensor is fooked and the one ive just put on is gonna be ok! Just waiting for the rain to stop now so i can bleed it all again lol. I would have thought any air in the thing would have been pushed out while bleeding? Or could it have been trapped inside and its not even busted at all / or could it acutally be screwed inside, still letting fluid through but holding air in at the same time? Rich |
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
26th Aug, 2007 at 11:39:20am
Turns out it wasnt the brake compensator thing! Im completely lost as to what it might be now |
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2514 Posts Member #: 1217 I like nice quiet girly Minis Cheltenham, Gloucestershire |
26th Aug, 2007 at 01:15:55pm
Rich,
Every day is a school day ...........
On 27th of Sep, 2007 at 12:45pm Jimster said:
why do you you think I got a girlfriend with small hands? |
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2521 Posts Member #: 417 Post Whore Swindon |
26th Aug, 2007 at 01:28:42pm
You have got the front calipers on with the bleed nipples at the top
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
26th Aug, 2007 at 02:18:55pm
On 26th of Aug, 2007 at 01:15pm RogerM said:
Rich, it's going to be a PITA but you might have to block it off at each union from the master towards the calipers in turn and see at what point you don't get a solid pedal. It can take a while but it'll find the problem eventually. Unlucky mate. I think thats the only option now! A long ass process of elimination! I will have a go at this a bit later and see what i find. On 26th of Aug, 2007 at 01:28pm Dangerous said:
You have got the front calipers on with the bleed nipples at the top Nope I have the calipers on and the nipples are at the bottom! Rich |
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 8604 Posts Member #: 573 Formerly Axel Podland |
26th Aug, 2007 at 02:23:31pm
Well done Dangerous.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
26th Aug, 2007 at 02:54:48pm
!!!! Theyre on the wrong way round are they?? So the bleed nipples are supposed to be at the top?
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 3692 Posts Member #: 1833 Formally mini_majic Auckland, New Zealand |
26th Aug, 2007 at 03:09:34pm
swap them around and watch the air flow! bleed nipple should always be a t the highest point in the thing you are trying to bleed as that is where the air will collect.
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2521 Posts Member #: 417 Post Whore Swindon |
26th Aug, 2007 at 03:52:57pm
Well if you really want to keep the bleed nipples at the bottom,you will have to take the calipers off and hold them upside down to bleed them !!
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2370 Posts Member #: 719 Post Whore Horndean - Near Portsmouth |
26th Aug, 2007 at 05:27:27pm
Haha it makes total sense now! Just bled the front two wheels after swopping the calipers over and the pedal is stiff as fook! Took it for a quick drive and they feel really good so im really happy!
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3692 Posts Member #: 1833 Formally mini_majic Auckland, New Zealand |
26th Aug, 2007 at 09:03:44pm
On 19th of Aug, 2007 at 09:17pm Scruffy said:
All problems are usually simple ones way too true hey! |
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