Brake pedal too low

[carl750]

I am car guy, but not a Ford guy; however I am helping a friend with a 1936 Ford that has been converted to hydraulic brakes. He believes them to be 1939 front and 1946 rear.

He has replaced the master, wheel cylinders, and lining in rear trying to get better brakes. Things seem to be finally starting to work, except the pedal goes almost to the floor.

When I look into the master, I see two holes under the fluid. A large one to the rear (rear bumper side) and a small one to the front (front bumper side).When pushing the pedal, by looking through these holes; I can see a “brass” piston move.Foll0wing is the sequent of events.Is this right?If not what is wrong and how do I correct.

When the pedal is up: The large, rear hole has the forward half of that hole showing brass and the rear half of that hole showing nothing.The small, front hole shows nothing.

Pushing the pedal a little way down: The brass moves forward and the large hole shows nothing.The small hole still shows nothing.

Pushing some more: The large, rear hole is completely filled with brass. The small hole still shows nothing.

Pushing further: The both holes are filled with brass.

Pushing further until pedal finally gets firm: The large hole is still completely filled with brass. The forward half of the small hole is filled with brass and the rear half of the small hole shows nothing.

Can anybody diagnose the problem from this information?

In case it impacts problem ………. The “hand brake” levers attached to the rear shoes and there cables were not installed by previous owner. Current owner would like to obtain all these pieces so we can install them.