I've been doing a bit of tinkering with the mini over the weekend. I still cannot get the brakes sorted. It's fitted with 7.5" discs and although not new, the calipers are all moving freely. I fitted the larger Cooper S master cylinder from Mini Spares (GMC172). I have also fitted a brand new remote servo (generic) with (I think) 1.9 ratio.
The problem I am having is excessive pedal travel.
I have adjusted the rear brakes properly (brand new, Minisport assemblies)
I have bled the system through using an Easybleed and collected half a litre collectively from the four corners. I have also bled the system in the tradtional way, and then re-bled using the Easybleed. I did not get any air out the last two methods.
When the engine is running, the pedal pretty much bottoms out. There is braking effect but no reserve.
If I pump the pedal with the engine off it feels okay, which experience suggests is badly adjusted drums. But I have double checked these and there is no more adjustment to be had.
When I had the Easybleed connected, the pedal felt absolutely bang-on.
I'm out of ideas, short of taking the servo off and re-bleeding. Any suggestions?
Cheers -