>Armand,
> It works the other way around: if you were to step on a coffee can
>sized
>Master cylinder, with 100 lbs, force, you would move a lot of fluid,
>distributed over a large area. If you step on a pill bottle full of fluid
>with the same force, you focus the same weight on a much smaller area, move
>the same amount of fluid, but actually gain a mechanical advantage. Think
>about how much force a ladies high heal shoe can put on a surface. It is all
>simple math: force per area. This is one reason it is so important to have
>new brake shoes matched (arced) to the actual brake drums. With the small
>volume of fluid any Master cylinder moves, you don't need to "use it up"
>flexing the brake shoes to get them to contact the drums.
>Jim Leach, Seattle
Hi Jim, thanks for the reply. I take it that you have done this in a real
world situation. That is you have changed to a smaller bore master cyl.
and had it work better. I'm still not convinced. regards Armand
ritchie@mcn.org
Armand & Lorie Ritchie
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