Help finding replacement brake master cylinder

[cometbluey]

Hi all,

I have a 1984 VW Polo coupe that is currently undergoing restoration, it was fitted with a brake servo kit that was designed by a company called BRM motorsport, I was always lead to believe this was based on metro parts but I'm struggling to find a replacement master cylinder so wondering if anyone can help.

I know that the brake reservoir is metro as I had to find another one from a scrap yard but as for the servo and master cylinder I have no idea... the part number stamped on it is Q71 LB06BZ043AD, a google search has come up with nothing!

Its a pretty cool bit of kit in the polo world haha, I had a small fire so the seals died so its possible it can just be rebuilt perhaps? if it helps I can add pictures, but from googling images I'm starting to think it may be a Ford part.... could be anything!

If anyone is interested in my little polo i'll start a build thread or something, his name is Bluey and had him for 17 years so he's a bit special :-) been off the road for 5 years though so I'm desperate to have him back now.

thanks a lot
Liz

[GreenV8S]

Metro master cylinders are still available so you should be able to compare yours pretty quickly to see whether it is similar.

The main things you would need to match for a replacement would be bore, piston type, stroke, number of ports, port threads, mounting bolt pattern. Armed with that you could potentially search through a parts catalog looking for something similar. If you have a good local motor factors and catch them at a quiet time you may find they're able to help you with the search - that's worked for me in the past.