Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: larryled on January 17, 2023, 19:34:08

Title: Master Brake Cylinder
Post by: larryled on January 17, 2023, 19:34:08

Need info/video on rebuilding the Master Brake Cylinder on 60’s Benz.  Thanks, Larry L.

Title: Re: Master Brake Cylinder
Post by: Vander on January 17, 2023, 20:13:55

What year or model? The early cars have different master cylinders than the later cars. Unless you think it will be a fun learning experience, the master cylinder is a part that you may prefer buying. It's pretty reasonable, especially the later cars.

Title: Re: Master Brake Cylinder
Post by: larryled on January 17, 2023, 20:25:33

It’s a 1966 250SE/C.  I already have a rebuild kit;  the brake peddle goes almost to the floor and will not pump up, no leaks of fluid noticeable from the calipers etc..   LLLL

Title: Re: Master Brake Cylinder
Post by: Kevkeller on January 21, 2023, 15:59:29

I would think it’s a pretty generic job. There’s probably many videos on Youtube you can look at.

Title: Re: Master Brake Cylinder
Post by: WRe on January 21, 2023, 17:13:07

Hi,
you'll find some videos on youtube, it's pretty straight forward, most MBC looks the same.
https://www.youtube.com/watch?v=WYB4vOv7Iag
Just remove the retaining ring and slide the pistons out. Remove the (cup) seals and renew them.
...WRe

Title: Re: Master Brake Cylinder
Post by: Benz Dr. on January 21, 2023, 19:31:23

I won't rebuild a MC unless I have no other options. It's very difficult to reproduce the mirror finish inside the cylinder and without that they tend to leak. Plus I have to consider liability.