Thread: Master Cylinder

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Quick question.

I am in the process of mocking up a 32 3 window and am currently plumbing the brakes. The master cylinder I am using has 4 outlets (2 per side). I know you can plumb into it from either side but my question is, can you use one side for the front and the other side for the rear?

Because of my frame configuration, this would simplify things considerably. Everyone I have talked to says that it will work, but I want to confirm this with the experts on this site. Thanks!

Thanks Evolvo, that confirms what I thought.

The front reservoir should supply the front brakes...and rear reservoir for rear brakes. Like Evolvo said it wont matter if you plumb the fronts to the left side and rears to the right side or vice versa...as long as the front reservoir supplies the front, and rear resevoir supplies the rear. I plugged the 2 unused holes and just ran 1 line out of each side to a T fitting...makes for a cleaner looking install.

Thanks! I have done this before but I always wondered why it was done that way when the master cylnder is mounted under the floor facing to the rear. To recap, the end of the mster cylinder closest to the power booster must feed the rear brakes. If this is not correct, please let me know soonest because I am going to plumb them today. Thanks.

I've seen diagrams with the front reservoir (closest to the booster) to the rear and back reservoir to the front. I thought it seemed odd, but that is the way I did it. Will that not work?

EDIT: nevermind...I wasn't thinking about the booster/mc being "turned around" when under the floor. so I have it right i think?

The large end of the reservoir should feed the drums, because they require the most fluid to move the shoes. The small end of the cylinder should feed the discs, as they require comparitively little fluid to move them the required ammount.