I seem to have very little pedal and the fronts won't bleed properly, wondering if the seals has gone
Justin
Brake Master Cylinders
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Justin Smith
- Posts: 518
- Joined: Sun Mar 08, 2009 11:15 pm
Brake Master Cylinders
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
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
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
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
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
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
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Politoford
- Posts: 2
- Joined: Wed Jan 18, 2023 2:34 pm
Re: Brake Master Cylinders
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.