National Aeronca Association Bulletin Board

Was with Gareth Gilson today. He is doing an annual on his Sedan and we were discussing his brakes. He has the stock master cylinders in the plane and they leak some brake fluid from time to time.

Has anyone found a good replacement cylinder or overhaul kit? Most people call for an MS "O" ring in the cylinder and that is not the correct part.

Has anyone else had this problem?

Thx,

Joe A

There are various types of "O" rings--the norm is the AN 6227 which is now referred to as the MS 28775 . There is also the AN 6230 which cross refernces to the MS 29513. If you have a number send me a PM and I'll see if I can find the correct number.