Kyle_in_Tex
Super Star Member
Thanks for posting Jim. Always nice to see a documented repair. It just pains me to see such simple brake master cylinders cost so much. Also wonder if modern synthetic brake fluid would be superior? Brake cylinders are such simple devices. If they get water in them, they will rust and if the rust is so bad, it will create pits in the bore that the rubber seals can't seal and then they will leak. As they heat and cool with the machine, they can pull water out of contaminated fluid. It is imperative to have good brake fluid to keep the system water free. It is also a good idea to bleed brake systems every few years to put in fresh fluid from an unopen container.