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 >