F15A Brake Wheel Cylinder Size

[Jacques Reed]

Hi Ian,

The following thread may be useful to you.

Of note in the thread is the potential problems with Spanish wheel cylinder cups.

http://www.mapleleafup.net/forums/sh...d.php?t=24229]

Cheers,

[sth65pac]

So I am asking if they are 1" DIA or 1.5" or perhaps 1-3/4" Diameter of the slave pistons/cups?

Understand part numbers, but if I can get a definitive size then I may be able to help everyone here out. Sorry I can't pull mine off at the moment as I have another vehicle in front of it.

I think that they may be shared with several Ford trucks but I have to have a size.

Cheers,

Ian

[Tony Smith]

As Rob Love has stated above, the front are 1 3/8", the rear 1 1/2", same on all CMP Ford and Chev 4x4s from 15cwt up to 60cwt (Note: Chev CMPs use the same Ford brake components in the wheels!). FGT and 60cwt also have brake boosters.

Smaller vehicles (F8, C8, C8A, C8AX, F15, C15) tend not to be standardised and are a mix of civvy truck components.

[sth65pac]

Originally Posted by Tony Smith

As Rob Love has stated above, the front are 1 3/8", the rear 1 1/2", same on all CMP Ford and Chev 4x4s from 15cwt up to 60cwt (Note: Chev CMPs use the same Ford brake components in the wheels!). FGT and 60cwt also have brake boosters.

Smaller vehicles (F8, C8, C8A, C8AX, F15, C15) tend not to be standardised and are a mix of civvy truck components.

AH HAA, Thankyou Tony. Well 1 1/2" Is easy enough to get. Happy with that. Inch & 3/8" a little trickier.

Cheers,

Ian

[Hanno Spoelstra]

Originally Posted by sth65pac

AH HAA, Thankyou Tony. Well 1 1/2" Is easy enough to get. Happy with that. Inch & 3/8" a little trickier.

Ian, if you go back up and follow the links to the information provided, you will find most if not all data you need. Please bear in mind it isn't only the piston bore size which matters, but also the dimensions and shape of the cylinders which have to fit the brake backing plate.

HTH,
Hanno

[sth65pac]

"Ian, if you go back up and follow the links to the information provided, you will find most if not all data you need. Please bear in mind it isn't only the piston bore size which matters, but also the dimensions and shape of the cylinders which have to fit the brake backing plate."

Thanks Hanno,

Well I am exploring the possibility of shifting to modern alternatives and the backing plate can be easily modified to fit a wheel cylinder. i.e. welded up and re-drilled if need be. I am then not restricted by the shape or fittings as these are the main issues with remaining in current configuration. It is very restrictive and an alternative may be possible.

Nothing ventured, nothing gained. I have a ways to go before I hit this part of the restoration.

Cheers,

Ian

[Hanno Spoelstra]

Originally Posted by sth65pac

Well I am exploring the possibility of shifting to modern alternatives and the backing plate can be easily modified to fit a wheel cylinder. i.e. welded up and re-drilled if need be. I am then not restricted by the shape or fittings as these are the main issues with remaining in current configuration. It is very restrictive and an alternative may be possible.

O.k., I understand what you are saying. But surely brake cylinders which fit are available in your part of the world? Either re-sleeved originals, NOS, or newly made ones as listed earlier on?

Anyway, let us know what you come up with!

Cheers,
Hanno