[Mgs] MGB rear brakes

[Charles & Peggy Robinson]

I'm sorry Barn, but I can't agree.  Look at it.  If the master and the 
slave were the same size, the slave would move the same amount as the 
master for a given displacement and the force would be 1 to 1  If the 
slave was twice the diameter of the master, the force at the slave would 
be doubled but the travel would be halved.

   CR

Barney Gaylord wrote:
> At 03:22 PM 2/25/2009 -0600, Charles & Peggy Robinson wrote:
>> I'm aware that if you increase the size of the slave cylinder you get 
>> more force multiplication but less movement for a given displacement 
>> of the master piston.  That's all I said.
>> ....
> 
> You never get less movement.  You get slower movement, more fluid flow, 
> and longer pedal travel until the shoes move the same distance to come 
> into contact with the drum.  When it stops moving you get higher force 
> from the hydraulic pressure on the larger piston.  Ergo, more braking 
> force on the rear wheels and possible rear wheel lockup (after longer 
> pedal travel).