You did say this was a 55 imp did you not? If so it is the only master cylder made of that type. The loss of the ring is a good question? If you let some one else service your car I would switch people. They do come off easly when taken off. Murphy was right it always goes to the center and hardest part to reach. Ford ring is the same and so is the cap. RC --- Mark McDonald <tomswift@xxxxxxxxxxxxx> wrote: > Dear John & Shirley, > > I'm wondering where the seal went that was supposed > to be there . . . and how > you had any brakes without it! It's been awhile > since I redid a master > cylinder, but I'm pretty sure they sell rebuild kits > that will contain a new > seal for you. Check your local parts store. (I > don't think you will be able > to get just the seal itself; you'll probably have to > buy the whole kit, but > they're not expensive.) > > Mark M > > John/Shirley Nimmo wrote: > > > Hi IMLer's; > > > > Have a question about the master cylinder cap > seal. One day while driving my > > car I had to use the > > brakes very heavily several times and all of a > sudden didn't have any > > brakes. After I got the car home > > I took the cap off and noticed that there wasn't > any seal at all under the > > cap and all of the fluid > > had dripped down the side of the master cylinder. > I made a seal for the cap > > and it works fairly > > well, but under hard braking this still leaks. Is > there anybody who sells > > remanufactured seals > > for the master cylinder cap? > > > > Any information would be greatly appreciated.. > > > > > Sincerely, > > > > > John & Shirley Nimmo > > > > >