Servo or not??
Turbo Mini Forums

Please excuse the thicko question, but (assuming it's standard) does my '91 single-carb Cooper have servo brakes or not?

Need to check as have replaced brake calipers, brake line etc., no leaks and bugger all pressure at the calipers. Am therefore assuming master cylinder is sh@gged

Is this a big job to change? Will one off a Metro Turbo fit?

Jim

i would have thought yours would have a servo is there a big gold round thing on the o/s of your engine bay connected to your master cylinder if yes then thats your servo.

did you bleed the brakes properly after you replaced the pipes etc?

no longer a series, but still 1.3 turbo.

i thought the 90's minis had a servo built into the master cylinder....
probably wrong, but i swear it is true

Edited by clubman_dan on 17th May, 2004.

yeah it'll have a servo, mine has. i cant stand it, i can hardly get eny pressure in my brakes either, should just about scrape the MOT with em. i'm gonna change it to a non servo setup with some 4 pots and vented disks as soon as possible.

are your servos actually working?

I find the later servo set-up excellent - so yours must be goosed 4 pots or no 4 pots...

Agree with Dave, best setup I?ve ever had in a Mini. I have bled my brakes with eezibleed and have had no problems. My mate has had his share of problems with 4-pots and twin master cylinder, even with bleeding with eezibleed. If he blocks the rear brakes then the pedal is rock solid but once the rears are connected the pedal is soft. Go figure...

My servo assisted brakes in my mini 30 ('89) are quite possibly the best i've ever had in a car, fantastic stopping power whilst being progressive.

Well I'm unsure of what to do now. I have usedr a bleeding kit from Halfords and it all seemed to beeld thtough ok. I had clean fluid coming from each nipple with no bubbles. With no visible leaks the brake pedal still goes flat to the floor with pretty much no resistance and no brakes whatsoever...There is a faint wheezing noise coming from themaster cylinder/fluid reservoir - is this relevant?

Jim

Have you adjusted up the back drums?

Iain... what do you mean? All I've done is bleed the nipple at the bottom of each of the back drums. How do I adjust them up and what does this mean/do?

<Oh look - is that my ignorance showing? Yes, i do believe it is....>

Jim

There's a square adjuster on the back of the drums.

Do your self a favour and buy a manual!

BTW
If you don't adjust them often, they seize and are a pain in the arse.
Got to remove the back plate, and free them up in a vice. Or resort to bodgeing. lol

Basically if your drums arent adjusted up then you get to much travel on the pedal and it will never go firm, its amazing how much difference having these adjusted makes to the feel of the pedal.

Ooooh...

Have bought a Haynes manual, but typically it's disappeared into my Dad's garage somewhere. Guess I'll have to go for a dig around...