Upgrade the master cylinder

[Guest Diceman]

I would feel more comfortable with a dual chamber master cylinder. (more safety). Has anybody done this? I have a 1946 pontiac, streamliner, 6 cyl.

Thanks in advance!

[PONTIAC1953]

hi, i understand why you would feel more comfortable with a dual master cylinder, but look at how many old car owners that are just as happy with the original single master cylinder restored to work like new. your 46 pontiac, like my 53 pontiac, has a great working hand brake, that i have used in the past when brake problem happened, same as when i had a 37 olds f37 coupe. for years in the fifties, hundreds of thousands of gm cars built with the treadle vac power brakes, single cylinder master cylinder from 1952 to 1958. now a days almost everyone with these, want to get rid of the treadle vac and hang something newer. i say bull. that's my opinion, you know, everyone has one. i'm perfectly happy having a treadle vac in my 53 pontiac custom catalina. charles coker, 1953 pontiac tech advisor.

[Guest]

hi, i understand why you would feel more comfortable with a dual master cylinder, but look at how many old car owners that are just as happy with the original single master cylinder restored to work like new. your 46 pontiac, like my 53 pontiac, has a great working hand brake, that i have used in the past when brake problem happened, same as when i had a 37 olds f37 coupe. for years in the fifties, hundreds of thousands of gm cars built with the treadle vac power brakes, single cylinder master cylinder from 1952 to 1958. now a days almost everyone with these, want to get rid of the treadle vac and hang something newer. i say bull. that's my opinion, you know, everyone has one. i'm perfectly happy having a treadle vac in my 53 pontiac custom catalina. charles coker, 1953 pontiac tech advisor.

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I'm with you Charles. Keeping it stock is what this club is all about.

Don

[Guest Fitz]

I ran my 53 Pontiac (can) with the original single master cyl. since 95, now, I'm rebuilding the entire car right now, and the original single master cyl. will stop the car again.

To me, the "need" to replace the single master to a dual into our old Pontiac (like the disc brake conversion) on safety base is not a real need. It's only bad maintained brake system that are not safe, bad dual system can be not safe too if they are not maintained correctly.

A single master cyl. system can block the 4 wheel in a emergency, and doing it with 4 drum.

Fitz.

[Guest Diceman]

I understand your opinions guys. My application is a little more different. My car isn't quite original so keeping it original especially for the master cyl. is not a big deal for me. If anyone knows where I could get a dual master that might bolt up to the stock mount, I would appreciate it greatly. My car is nothing like the ones you have. I wished it was..... but got to use what you have.

[Guest PontiacEight]

I understand your opinions guys. My application is a little more different. My car isn't quite original so keeping it original especially for the master cyl. is not a big deal for me. If anyone knows where I could get a dual master that might bolt up to the stock mount, I would appreciate it greatly. My car is nothing like the ones you have. I wished it was..... but got to use what you have.

 

I've never seen a dual reservoir direct bolt on replacement for those cars (someone here can correct me if I'm wrong). Since your car isn't original/stock anyhow, there are companies that offer dual reservoir master cylinders that mount to the frame similar to the one that's on your car. However, you will have to do some modification and fabrication to make it work.

Edited July 6, 2015 by PontiacEight (see edit history)