Quote:
Originally Posted by Ron_r1959
Wish I had found that when I did mine LOL
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Yup, that is a much-needed modification for those seeking to run a dual M/C. It's kind of unfortunate that they built it with a 1" diameter bore, as the originals (as far as I know) are 1-1/16" diameter bore. This means that the stroke of the pedal will need to be longer to displace an equal volume of brake fluid to match the original M/C. This could introduce issues with possibly running out of available pedal travel, and especially so if one circuit of the cylinder develops a leak.
It is safe to say that when one circuit with these dual M/Cs develops a leak, the brake pedal must travel a greater distance than normal to move the same volume of fluid as when the front or rear circuits have NO leaks. You can look at the dual M/C below closely to understand WHY the physics in these M/Cs dictates that they operate in this manner.
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.
Coop
