Rebuilding a Duplex Pump Part 2

By the time you see this video the pump has already been completed and is sitting in my truck ready to head over to the railroad for test operation. I will be firing the 58 up on Friday and have a steam hose to connect this to the boiler, and the plan is to run the pump to break it in. The delrin rings did fit and now lets see if they seal good enough to pump water at high pressure.