PS Pump for 66 Valiant slant 6

If your pump has a solid shaft, you'll want to remove the reservoir and replace the shaft seal first because you'll need to press that pulley back on. You can do it with a vice if you have one big enough. Otherwise, a press is the easiest. Then install the reservoir with a new "O" ring. You don't want to press the pulley on with the reservoir still on the back because you might deform it. If you have a threaded shaft, you can use a bolt to install the pulley.