Had the engine out and put in new rear main seal. Now that it is back in the car we wanted to prime it before starting it. Using the hex rod and drill going c.c.w.. Tried it for a couple minutes and nothing. Screwed off the filter and no oil....
Basic trouble shooting process. Verify that you have oil in the pan first. Verify that the drive rod is actually going into the oil pump. Verify that you are spinning the pump CCW. If it just spins then remove the oil filter and try it again. If you still don't get anything then remove the oil pump and open it up. Maybe the relief valve is stuck open, maybe the gasket was put on backwards. Maybe someone forgot to put the gears in it.
It isn't very complicated, just a few moving parts in the whole system.