quick brake question

quick brake question

Author
Discussion

ccharlie6

Original Poster:

773 posts

247 months

Sunday 31st July 2005
quotequote all
i've just finished rebuilding and fitting some cooper S discs on my mini and they work well but if you put the brakes on hard it pulls to the left and i cant really fathom why.

anyone got any ideas?

oh yeah its running EBC green stuff and four groove discs and they have got about 6miles on in total.

>> Edited by ccharlie6 on Sunday 31st July 21:03

miniman

26,321 posts

269 months

Sunday 31st July 2005
quotequote all
Best place to start is to bleed them again. If it's pulling to the left, then the left side brakes are stronger, so I would expect some kind of problem on the right front side.

minimax

11,985 posts

263 months

Monday 1st August 2005
quotequote all
my car randomly pulls to the left, sometimes the right, and often straight ahead...I've come to the conclusion that it's just mini brakes with a mind of their own

it's worse in the wet though, I was told by a former mini engineer that this is because water gets inbetween the pad and discs causing one side to lose friction seems a bit dangerous though!

kleaky88

303 posts

237 months

Monday 1st August 2005
quotequote all
Its brake inbalance and its one of those mot fail things. I would firstly rebleed them just to double check if it's an airlock but it could be related to your discs. I would make absolutely sure that the right disc is on square and is completely flat.

ccharlie6

Original Poster:

773 posts

247 months

Monday 1st August 2005
quotequote all
ok thanks ill rebleed them today and see if that sorts the problem.

on another note has anyone else found the CV boot clips that are supplied by companies absolutely useless?

Cooperman

4,428 posts

257 months

Monday 1st August 2005
quotequote all
I have had this problem a couple of times in the last 3 years. The first time was on a Mini pick-Up and after bleeding and re-adjusting the twin leading-shoe front brakes I changed all the wheel cylinders. It made no difference. Then I changed the flexibles and this cured it.
Then, last year I had the same problem with a Fiesta 1.6 Si. Again I changed the calipers but it didn't cure it, so I changed the flexibles and, Bo's your uncle. I would change the flewxibles on the car in question to Aeroquips from Mini Spares. I bet that cures it.
Bleeding will not normally make any difference as with air in the system the pedal will just go down until the pressures at each caliper/wheel cylinder.
are all equal.
One other question. Have you bedded the EBC pads in properly? If not, that could be causing the problem. EBC are not really hard pads and you don't normally get the sort of grabbing you can get with proper competition pads that ae not bedded-in properly.Personally I'm not a great fan of EBC and the carbon-metallic pads Mini Spares do are much, much better for all fast applications with a better wear rate as well.

ccharlie6

Original Poster:

773 posts

247 months

Monday 1st August 2005
quotequote all
well the pads only have about 6 or 7 miles on them so that could be the problem, i don't think its the flexibles as im using goodridge braided hoses

Cooperman

4,428 posts

257 months

Monday 1st August 2005
quotequote all
Give them a good bedding in by driving along in 3rd at about 50 mph, give it full throttle and hold the speed at 50 by braking with your left foot for about 1/4 mile. Let them cool down and do this about 3 or 4 more times. Then let them cool and then drive the car hard on a twisty road with lots of braking. That will bed them in properly. You may have to adjust the rears after doing this.
The hoses you have don't come much better, so it won't be them.

ccharlie6

Original Poster:

773 posts

247 months

Monday 1st August 2005
quotequote all
will do, thanks for the help

>> Edited by ccharlie6 on Monday 1st August 17:34