1951 Cadillac Series 62 Coupe-Brake Master Cylinder

[caddy_rick]

New to the hobby. Does someone have a picture of the master brake cylinder with the brake lines hooked up to it.  I replaced all the lines and master cylinder but like a dumb..... i didnt take any pictures. i cant figure out how the rear brake line hooks up to the master cylinder. bought the kit from Kanter any pictures would be helpfull.  thanks,

[Philippe M. Ruel]

From memory, there is only one brake line departing from the front of the original, single bowl master cylinder.

This line goes to an hexagonal-shaped junction block bolted to the LH (passenger) side frame rail top.

[Caddy Wizard]

Master should have a big brass distribution block screwed into the front of it.  It has three outlets: one for the brake light switch, one for the front brake line, and one for the rear brake line.   The front brake line then goes up to a T block on the left hand frame rail, where it splits out to the two front wheels.  I believe one of the distribution block outlets is threaded with a 1/8" pipe thread for the brake light switch, while the other two outlets are formed for a flared brake line.


If I recall, the front brake line comes straight out the front of the block, the rear brake line comes in from the left side, and the brake light switch screws in from the top.

[Bob Schuman]

Starting in 1951, Cadillac no longer used a hydraulic pressure switch to operate the brake lights. It used a switch mechanically operated by the brake pedal linkage. The fitting on the front of the master cylinder for a 1951 only needs the outlets for the front and rear brake fluid lines. The fitting for many models is very hard to find, so you can use a two outlet type(1951 & later) or the 1950 type with the 1/8" female pipe thread. If using the earlier type and 100% authenticity is not essential, just put a 1/8" brass pipe plug in the unused brake light switch port.
Bob Schuman,CLC#254