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glennpm · 12-11-2019, 03:00 PM

Hi,

Yes, its all about mechanical advantage by having a longer lever, same as grabbing a breaker bar when you racket wrench just doesn't do it ;-)

I posted this link to a pickup project that Dennis Lacy posted on the HAMB a couple of years ago. I came across this a week or so back and posted in response to your other thread on master cylinder mounting. It is a great post he made.

https://www.fordbarn.com/forum/showp...17&postcount=8

In Dennis kit and the link in the above message, you'll note that his brake lever arm is long so he uses a smaller bore master cylinder. The travel of your foot pedal will be greater but much easier to brake.

Here are a couple of useful links I just found on Google:

https://www.onallcylinders.com/2014/...der-bore-size/

https://www.markwilliams.com/braketech.html

I'd either buy Dennis' kit or move your master cylinder up. Maybe look into a 7/8" bore cylinder too although I have a 4-1/3 ratio and have no problem pushing the pedal or in the braking action.

Hey, better to find this out now instead of being disappointed later not counting the rework.

Glenn

12-11-2019, 03:00 PM	#14
glennpm Senior Member Join Date: Sep 2014 Location: Wiscasset, Maine Posts: 1,981	Re: Master Cylinder Bracket Hi, Yes, its all about mechanical advantage by having a longer lever, same as grabbing a breaker bar when you racket wrench just doesn't do it ;-) I posted this link to a pickup project that Dennis Lacy posted on the HAMB a couple of years ago. I came across this a week or so back and posted in response to your other thread on master cylinder mounting. It is a great post he made. https://www.fordbarn.com/forum/showp...17&postcount=8 In Dennis kit and the link in the above message, you'll note that his brake lever arm is long so he uses a smaller bore master cylinder. The travel of your foot pedal will be greater but much easier to brake. Here are a couple of useful links I just found on Google: https://www.onallcylinders.com/2014/...der-bore-size/ https://www.markwilliams.com/braketech.html I'd either buy Dennis' kit or move your master cylinder up. Maybe look into a 7/8" bore cylinder too although I have a 4-1/3 ratio and have no problem pushing the pedal or in the braking action. Hey, better to find this out now instead of being disappointed later not counting the rework. Glenn Last edited by glennpm; 12-11-2019 at 03:07 PM.