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What size bore master cylinder?
owelly - 22/4/11 at 04:03 PM

I'm struggling for space on my plastic cars bulkhead. I've made a new floor mounted pedal box but this means mounting the brake M/C very low down. The current M/C is a non servo Fiesta one but the plastic reservoir will be rather close to the exhaust manifold and the M/C needs to be at a jaunty angle whereas the pedal box would mount it horizontal which would put the reservoir at the wrong angle of jaunt, if you see what I mean?
My options are:
1. to make a wedge shaped mount for the M/C so it sits level and make a heat sheild for the reservoir and top it up from under the wheel arch.
2. make an extension piece so the actuating rod travels through a tube and the M/C could be remotely mounted ahead of the engine above the steering rack.
3. ditch the (almost new!) Fiesta M/C and fit a new non-integral M/C.

This car is for the PPC £999 challenge so the budget is very tight. Buying two M/Cs and making the brakes biased isn't an option (unless someone has some very cheap bits?!)
If I buy one M/C, what size do I need? Currently running an Atlas rear with standard drums and Escort discs (M16?) up front. Hopefully upgrading to Mondeo calipers and Diahatsu Applause reas calipers in the future!
Cheers guys.


britishtrident - 22/4/11 at 04:14 PM

VW Golf master cylinders reservoirs sit horizontally and fit some Ford master cylinders.


owelly - 22/4/11 at 04:25 PM

Smashing. Any part numbers or VW models?


rusty nuts - 22/4/11 at 04:27 PM

Don't some Fiats use a plastic insert in the reservoir ports connected to a remote reservoir via a flexible hose? They may fit the Fiesta master cylinder? IIRC someone once posted on here about them


owelly - 22/4/11 at 04:38 PM

I made some little alloy spigotty doofers that were for someone on here who wanted to remotely mount the reservoir but I'm looking at all the options!


britishtrident - 22/4/11 at 05:09 PM

I know the Golf MK2 Caddy had it --- if yo get stuck I might be able antenna help I have an unused Golf cylinder with a suitable reservoir in the spares box.


owelly - 22/4/11 at 05:51 PM

Cheers BT. I'm off to work just now so I'll see if I can craft something to make the Fiesta one fit otherwise I'll be pestering you. Cheers again.


iank - 22/4/11 at 05:54 PM

Fiat 124 master cylinder (BMC4020) is a remote fitting and costs less than £20 new from http://www.brakeparts.co.uk/


Bigheppy - 22/4/11 at 07:20 PM

On my current project I have limited space in the engine bay so I am using an MGB pedal assembly. This mounts the master cylinder above the pedals instead of in front. I paid £10 of ebay and am using the fiat 124 master cylinder £16 new, small mod to reposition the mounting holes make a pushrod job done.