7 replies to this topic

[Broomer]

right chaps.

im at the stage of sorting the brakes on my K series Mini. servos been ditched for obvious reasons. i have 2 black tag master cylinders, but i could do with something a little more compact, and am i right in thinking the yellow tag is alot slimmer?

is there any difference in bore sizes / performance between the two masters?

also do i ditch the standard bias valve on the bulk head and run an adjustable one, or is the standard item upto the job?

[Broomer]

Bump.

[Ethel]

The FAM7821 will do the job, but you can swap it if needs be.

The yellow tag GMC227 is a bit slimmer, but I can't see it making any difference. The horizontal master has the biggest bore. GMC227 is the same bore as GMC167 on top but bigger in the bottom. It has a M12x1 thread to stop it being connected wrongly - the bottom outlet must go to the rear brakes.

[[email protected]]

Plus repair kits are more readily available for the yellow band, so that would be my choice....

[Broomer]

Ideal chaps. I'll use the black tag for the time being even though I need to tilt it backwards several degrees and remove some material from beside the union mounting hole to clear my inlet manifold.

And switch to a yellow tag at a later date.

So the regulator on a 1988 servod mini is ok to use also ?

[Ethel]

It's the same regulator. I'd be wary if the clearances are that close - what happens when the engine is rocking against the stabilisers?

Post a piccy, maybe someone will see an alternative solution. Can you tilt the engine a bit, or spacer the pedal box back in to the car slightly? Have you seen Big Chief's Micra conversions, some good lateral thinking (literally) there.

[ado15]

You may struggle to get the black tag cylinder to bleed properly after it's been totally dry. It had a design fault which is why Lockheed replaced it with the yellow tag one.

[Broomer]

no clear pictures of the clearance issue.

one quick question.

whats a green tag master?