Dismanteling the brake servo
Turbo Mini Forums

Hi i posted around a week ago about changing engine revs when using the brake, after replacing the non return valve the problem now is that the engine revs drop so i purchased a rebuild kit for a mk3 servo which i beleive is the worng one i was told when i purchashed the car the brake servo was from a cooper s which i beleive to be mk3?? http://minispares.com/Product.aspx?pid=34058 this seems to look the same as the one on my car but i have purchased http://minispares.com/Product.aspx?pid=34993. the problem i am having is that now when i use the brakes the revs drop so i beleive the diaphragm to be damaged is this correct? i have removewd the servo from the car but cannot for the life of me open it , is it even possible if so ther must be a technique lol

I may have steered you wrong there, when you said a Cooper-S servo I assumed it was the Mk3 Cooper-S remote mount type.
http://www.minispares.com/Product.aspx?pid=38542

Where is the servo mounted?? Is mounted directly to the master? do you have a dual cct. brake system? If so Yes you bought the wrong kit. Thats the late (post 89) type.

If its the later servo mounted type you needed:-
http://www.minispares.com/Product.aspx?pid=34207

Not done this before so cant help on the disassembly..

Edited by Turbo Tel on 5th Apr, 2008.

website:- http://www.terryhunt.co.uk

Hi tel thanks for the reply, yeh the servo is mounted to the master cylinder, its no biggy im sure i can return it no problem that looks like the right servo rebuild kit didnt see it before my self, the servo appears to twist apart but i cant for the life of me get it to seperte any one else done this before or is it comon practice to replace the servo when having problems?

Can any one help me with this ??

Sorry to bring back to life an old thread, but i could do with some help on this, im about to replace my servo but after reading a few post it seems that a few of you dont actually run them what do you replace them with and what is the process of doing it thanks