Brake Master Cylinder

[ragey]

Hi all

I have been told that you can turn the master cylinder round, [ the bit under the reservoir ] this would mean that it would be above the brake peddle. If you can has anyone know how.

Paul.

[tractor]

yes I did it to my 2b there might be a photo of it on one of my posts Edited September 9, 2014 by tractor

[richyb66]

Like this?

 

http://www.rhocar.org/index.php?showtopic=25699

 

[tractor]

it looks like that's the only part of my coversion I didn't take a proper photo of anyway I used the gbs pedal box which is a mighty challenge in itself just to assemble it then it took a lot of work to fit it to the car the master cylinder was the easy bit

Edited September 9, 2014 by tractor

[ragey]

so from what i can see when you push the brake peddle it pulls at the cylinder, so when you turned it round how did you get it to pull

paul

[Guest ant.b]

Hi all

I have been told that you can turn the master cylinder round, [ the bit under the reservoir ] this would mean that it would be above the brake peddle. If you can has anyone know how.

Paul.

 

try fixing the gearbox first ??

[ragey]

thats the next job but theres no harm in planning ahead

[tractor]

_{no it dosent pull it pushes as you push the pedal the pendulum top of pedal pushes the master cylinder}

[ragey]

i have just looked and you are right but that means when you turn it round it pulls, so do you have to move the arm that pushes the cylinder above the pivot point.

If so how did you work out the point were you fixed it.

paul.

[steve in stockport]

correct, you need to add an attachment point above the pivot so that pressing the pedal will allow the push rod to work in the opposite direction. General rule of thumb is that you want at least 5:1 ratio between the pedal to pivot and push rod to pivot if not using a servo.

I managed to rework the sierra pedal box to maintain the clutch adjuster and have an inboard master cylinder

 

[ragey]

Thanks chaps i think that's my winter project sorted out.

Paul.

[Guest shaggy]

Eye but Steve, your just a clever sod.................

[ragey]

my brake system has a pump to keep the pressure dont know if that makes a differance

Paul.

[Guest mower man]

my brake system has a pump to keep the pressure dont know if that makes a differance

Paul.

???????? abs ?? mowerman

[Bob Tucker]

Its likely to be a pressure "switch"

You fit them when the MC is lower than the slave, otherwise

the pistons retract too far & mean that you get a very long push

before the brakes operate.

Like this...

http://www.carbuildersolutions.com/uk/residual-pressure-valve