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Dual Master cylinder
ian.stewart - 30/6/24 at 12:30 PM

Im boxing myself into a corner at the moment with my brake master cylinder on my other toy, an old Triumph Toledo,, the master cylinder sticks out of the bulkhead with a cast ally integral pot, works ok, but its not dual circuit, and I want dual circuit!!!!.
I have changed the engine to a C20XE Vauxhall Twink, and all was great until I changed from Webers to DTH Jenveys,
Now I dont have enough room for my planned master cylinder, its too long and now hits the bodies.


What Im looking for now is a 0.75 or 0.7 short dual circuit M/cyl with the ability to fit remote reservoirs I have a max of length of 140mm !!!! in which to fit the cylinder, I may be able to nick another 10mm but thats it. Any suggestions for something that may work for me


gremlin1234 - 30/6/24 at 02:53 PM

have you considered 2 master cylinders and a balance bar?


voucht - 30/6/24 at 02:55 PM

Hi,

140mm is really not a lot, as it seems like even the "compact" Wilwood master-cylinders are 160mm long.
https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

Is there a possibility for you to fit the master-cylinder vertically, or at least at an angle to be able to fit a longer one?


nick205 - 1/7/24 at 12:13 PM

Are "reverse master cylinders" an option for you?

I'd never come acress them before, but "Ugg10" shows them in a recent thread...

https://www.locostbuilders.co.uk/viewthread.php?tid=220789


adithorp - 1/7/24 at 05:48 PM

Do you mean a tandem master cylinder operating a dual circuit brake system?

Dual master, means 2 cylinders linked by a balance bar.

Finding one short enough for your needs is going to be tricky.


nick205 - 2/7/24 at 07:28 AM

No idea what your budget is, but have you considered people like Wilwood?

https://www.wilwood.com/MasterCylinders/MasterCylinderLanding

May even be worth a call to explain yourproblem and see if they have a solution.

[Edited on 2-7-24 by nick205]