53 replies to this topic

[Big_Adam]

evening people.

i have a problem but 1st the storie of how this new problem came to be,

well my brakes have gone south once more. i tryed to bleed them (being the mad sort of person i am) after changing a brake cylinder and the brakes being a bit spongey. so i started to un-do the bleed nipple but it would not budge. i grunted and bitched at it then decided "oh sod it" and when to get a new cylinder. got the new cylinder. busted the old one off and began to fit the new one.........found out the threads were diffrent..... ....so i refitted the old cylinder (yes i know. stupid) and used the new brake cylinders bleed nipple (seemed like a good idea) it fitted....sort of. so i began to try to bleed the brakes. brake fluid when everywere so i got off and decided to leave it and take it to lenny tommrow. took it to lenny who bitched and moaned about being a mechanic and basical said no so i went home.

so now i have the new problem. which is twofold.

1, are mini brake cylinders diffrent thread sizes or somthing? do i have a weird sized thread? beacuse a cylinder i bought a few weeks back fitted perfectly.

2, while lenny was bitching and moaning he mention about bleeding the brakes. he said that their a bugger (not his words. he used more swearing) beacuse you can't get that pressure sencor out (type 2 break master cylinder) so you get air stuck in there. is this true?!?! beacuse i think i'm going to end up bleeding the lot.

3, is there some trick to adjusting brakes. everytime i seem to do it, it go'd badly or the brakes bind up at certain points or i get scraping sounds coming from the drums.

so theres my storie and my question. oh its a 1982 Austin Mini HL. all drums.

cheers,

[miniboo]

get an easibleed kit from halfords and u will no longer have any problems bleeding the brakes

not sure about the master cylinders

[Big_Adam]

whats an easybleed kit?

[miniboo]

http://cgi.ebay.co.u...1QQcmdZViewItem

[minislapper]

evening people.

1, are mini brake cylinders diffrent thread sizes or somthing? do i have a weird sized thread? beacuse a cylinder i bought a few weeks back fitted perfectly.

2, while lenny was bitching and moaning he mention about bleeding the brakes. he said that their a bugger (not his words. he used more swearing) beacuse you can't get that pressure sencor out (type 2 break master cylinder) so you get air stuck in there. is this true?!?! beacuse i think i'm going to end up bleeding the lot.

3, is there some trick to adjusting brakes. everytime i seem to do it, it go'd badly or the brakes bind up at certain points or i get scraping sounds coming from the drums.

so theres my storie and my question. oh its a 1982 Austin Mini HL. all drums.

cheers,

I'm sure the thread sizes are the same. The wheel cylinders have a different bore depending on whether you have discs or drums fitted. Sounds like they've given you the wrong one.

Pressure sensor and air stuck in? Don't understand what he's on about.

End up bleeding the lot? You mean as opposed to just bleeding one corner? If you've had it peeing brake fluid all over the place then you would be best bleeding the entire system anyway to be sure.

Adjusting brakes is not something you can describe over a forum. It's a 'hands on' thing. Are you adjusting the drums as they are? Ideally you should put at least one nut onto a stud and make sure the drum is pulled in tight.

You need someone who knows what they're doing to show you.

[1984mini25]

is there some trick to adjusting brakes. everytime i seem to do it, it go'd badly or the brakes bind up at certain points or i get scraping sounds coming from the drums.

Could be that the drums have warped slightly and are no longer round, which would make adjusting them a pain in the

[Big_Adam]

Pressure sensor and air stuck in? Don't understand what he's on about.

i don't have a clue whats he's on about either. he says that air gets stuck around the pressure sencor or somthing to that degree.

@1984mini25, don't think so. they were fine before i started. changed the cylinder then they binded and scraped away nicely.

oh yeah also how do those eezibleed thingys work? i know they use a spare tyre but how dose it work?

Edited by Big_Adam, 10 July 2006 - 10:13 PM.

[1984mini25]

@1984mini25, don't think so. they were fine before i started. changed the cylinder then they binded and scraped away nicely.

Probably only noticed it now as the shoes have been adjusted to sit closer to the inside of the drum.

oh yeah also how do those eezibleed thingys work? i know they use a spare tyre but how dose it work?

You undo the cap on the mater cylinder, and screw the easy bleed one on.
Fill up the bottle with brake fluid (about half) and attach the air line to the valve on a tyre that has 15psi or less or you will the seals in the master cylinder.
And just open the bleed valve on the cylinder you want bleed and wait till all the air is out and you start to get fluid then close off and move onto the next one.

Edited by 1984mini25, 10 July 2006 - 10:28 PM.

[Jammy]

It uses the air pressure in the tyre (any tyre) to force the brake fluid through your brake system, replacing any brake fluid and air removed from the system with the brake fluid contained in the EasyBleed bottle. Which is why its essential you never allow the bottle to run empty, otherwise your putting air back into the system!

I believe your mechanic maybe talking about getting air trapped between the master cylinder and the FAM valve (not a pressure sensor) on the bulkhead. I believe MMJ had to bleed the master cylinder to get his to bleed correctly.

[blacktulip]

isnt there a sequence to bleeding the brakes? im sure i saw it on here ages ago.

[minislapper]

isnt there a sequence to bleeding the brakes? im sure i saw it on here ages ago.

Yes, you start with the corner furthest from the master cylinder then work forwards.

[Big_Adam]

ok changed the cylinder. i now know were to always go for bits now (i bought one from motorfactor then the one mention in this thread that didn't fit came from a diffrent place. went to motorfactors for this cylinder, fitted perfectly) fitted it and blead it. adjusted it all up...on the rear anyway.

and my brakes are still spongey as hell. takes 3 pumps to get them to work. i mean if i keep my foot on the pedal once i got pressure its fine. but if i leave the pedal and go back to brake in 1-2mins time i have to pump again.

damn brakes. ... ... wonder how much an anchor costs?

[1984mini25]

and my brakes are still spongey as hell. takes 3 pumps to get them to work. i mean if i keep my foot on the pedal once i got pressure its fine. but if i leave the pedal and go back to brake in 1-2mins time i have to pump again.

they still need bleeding then.

[Jammy]

Are you bleeding the whole system?!?

[Big_Adam]

oh bugger. i need an assistant or somthing then. you think the whole thingy. front and back need doing?