Triumph Stag - Power steering pump test 

Here I show you how to bench test a power steering pump. I glued two videos together. The second experiment should come first. Basically, if you just rebuilt it and you rotate the pulley by hand, it wont pump. You will need to turn the pulley with a drill until the pump builds pressure. Once the pressure builds up, you can then turn the pulley slowly by hand and it will continue to pump. After sometime, it will stop pumping.
I'm not pressure testing this pump. I'm just showing it pumping.
Here is a website with more details about a Saginaw pump:
www.pirate4x4....