Pump it Up!
The boiler is large and I wanted to make sure I had no problems with water getting into it. I plan on using 2 Ohlenkamp injectors and decided to also use a double axle pump. Couldn't find the right size pumps so I decided to make them. Made some drawings, bought the materials and started to cut away. I drilled, bore and reamed the bronze piston cylinder and made 4 brass check valves. The eccentric was made of cast iron and the rotating rings out of bronze. No castings were used. Here are some pictures.
