Heath_h49008
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I'm coming from the automotive industry here, so be kind if I'm missing some thing...
We are trying to split the system in a manner similar to modern automotive brakes... single reservoir feeding two brake circuits so a line failure in either one won't disable the other. Correct?
The only thing stopping you is the current MC design vs the modern, and the volume of fluid a modern replacement could push, and with what pressure.
If the air pack functions in the same manner as a vacuum booster, applying additional force to the piston shaft upon brake application via air pressure, then we don't need to talk about it. We have the booster...
So, from what I can tell, we need a dual chamber piston master cylinder capable of pushing 1/3 fluid volume to the front, and 2/3 to the rear, at the same pressure (or marginally more)... and an adapter capable of allowing us to bolt this to the existing bracket and airpack. Brackets are easy... steel, welder, time. But what common modern vehicle with hydraulic drum brakes of similar wheel cylinder size and dual rear axles should we look at for the donor MC?
The easy answer would be to simply make a new master cylinder and piston with the correct dimensions and dual circuits... is that something we might consider? A second version for the bobbers might also be useful.
We are trying to split the system in a manner similar to modern automotive brakes... single reservoir feeding two brake circuits so a line failure in either one won't disable the other. Correct?
The only thing stopping you is the current MC design vs the modern, and the volume of fluid a modern replacement could push, and with what pressure.
If the air pack functions in the same manner as a vacuum booster, applying additional force to the piston shaft upon brake application via air pressure, then we don't need to talk about it. We have the booster...
So, from what I can tell, we need a dual chamber piston master cylinder capable of pushing 1/3 fluid volume to the front, and 2/3 to the rear, at the same pressure (or marginally more)... and an adapter capable of allowing us to bolt this to the existing bracket and airpack. Brackets are easy... steel, welder, time. But what common modern vehicle with hydraulic drum brakes of similar wheel cylinder size and dual rear axles should we look at for the donor MC?
The easy answer would be to simply make a new master cylinder and piston with the correct dimensions and dual circuits... is that something we might consider? A second version for the bobbers might also be useful.