Quote:
Originally Posted by JSeery
Do you understand that a dual master cylinder is difficult to set up and often will not work if one side fails? It is not about just the plumbing, there is not enough pedal travel. Be sure to test it if you intend to trust it!
|
As JSeery says, it is imperative to realize that DUAL M/C in a "failure" scenario in one side of your brake system, the Master Cylinder PISTON assembly must travel farther than normal, i.e....a greater distance than when NEITHER side of the system has a leak. Not only that....the FULL
"advisable" travel of your M/C piston must be attainable with your final brake pedal and M/C geometry. Your particular application should be designed such that there is enough piston travel available for the piston to exceed normal travel parameters...
IF one side of the system develops a leak. Equally important though, your pedal geometry should be such that the pedal must be able to bottom-out against a positive stop (like the floor board in an old Ford) BEFORE
"bottoming-out" ("advisable travel") the piston in the M/C.
If you'll study the drawing below and pay particular attention to the green-colored circuit with leak, as well as understanding exactly which cups are creating the pressure to move fluid, you'll see why MORE piston travel is necessary in a dual M/C if one side develops a leak. DD
........