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Brake Master Cylinders

Posted: Mon Nov 03, 2014 9:57 pm
by Justin Smith
Has anyone replaced their brake master cylinders, I'm sure I remember someone doing it but can't find anything on a search?

I seem to have very little pedal and the fronts won't bleed properly, wondering if the seals has gone :(

Justin

Re: Brake Master Cylinders

Posted: Thu Nov 06, 2014 4:59 pm
by cxa2000
Shazam :)

http://www.rs200.org/forum/viewtopic.ph ... akes#p2658

Had a similar problem a couple years ago, decided to drain and refill with fresh fluid and then could'nt bleed the bleeding system :evil: tried everything, pressure bleeding, vacuum bleeding and the good old fashion pumping, eventually became apparent that it was a seal problem due to draining old fluid so had to replace both MC's and did the clutch for good measure, did find out that the fluid spills out of vents on hard cornering and breaking over time, leading to paint peeling on front chassis leg and bridging plate.
Claudio

Re: Brake Master Cylinders

Posted: Mon May 08, 2023 3:18 pm
by Politoford
I found with ours that a small amount of contamination can block the transfer port and it wouldn't bleed. If the bore is decent it was a pretty simple rebuild.