Looking for a few dimensions, and would appreciate any help. I not only enjoy doing these restorations, but am also a machinist. I need the overall length of the hose hook lever arm. The very end where the hose hook screws onto is missing, and I plan to fabricate and pin on a new piece, however, I don't know how much is missing. I am also looking for accurate dimensions of the valve seat washer on the main valve. Those are the two main parts that are holding me up.
One last question...What thickness is the rubber for the diaphragm? I am trying to figure out if this one is original. It seems thin.