Master cylinder dimensions

[Sambarker]

Can anyone think or have access to some brake master cylinders?

It for my 305

At the moment I have a 2 port master cylinder from a 306 DT but I am having clearance issues:



Can anyone think of a 2 or 3 port master cylinder that will replace the 306 one that is perhaps a little shorter in length and clear the rocker cover a little more?

Cheera

[vinny]

205 ones are quite short mate mite fit, on my mates gti think its 4 port definatly more than 2 and 20 mm piston but if ther are two many ports u can blank some off aslong as you use one front port and one rear port. two port ones usually have a couple of t pieces in the system to distribute fliud to all 4 brakes.some are 3 port indivual lines to each front and a t on the rears.

[Sambarker]

Yeah I'm running a 2 port at the moment with t pieces

[powerandtorque]

205/306/405/406 MC's are broadly the same external size - within a few mm anyway - so that likely won't work.

I've been looking into something similar as I was/am considering a 206 GTi-180 engine for my 205, which has the same issues of lack of clearance for the standard MC. Thus I've been looking into finding a shorter option in the correct fitment, which hasn't proved easy but I've found a couple of options.

Mk1 Ford Focus MC is the same fitment and much shorter, but it's 24mm bore so it's going to be a short pedal with anything less than GTi-6 or other similarly large piston'd calipers. From memory, there's 2 x 10mm and 2 x 12mm outlets on them, so just block off the two 12mm ones.

That's what the VAG boys use on 1.8T conversions AFAIK to get around clearance issues.

Some mid-90's Fiat's (eg Mk1 Punto GT Turbo) have a short MC too in the correct fitment, but they seem to be quite hard to get hold of new and I personally have little faith in a 20 year old MC from a scrapyard!

Other option depending how the MC/servo is mounted on a 305 is to tilt the whole servo upwards to give clearance, using a wedge between the pedal box and the bulkhead. That's what some 205 owners do when doing GTi-6 conversions and it might give you enough clearance if it almost fits now, assuming that you can do the same thing on a 305 of course.