I just got done with dinner, so I still have a fork handy. I will take a stab at sorting it out.Did my best, but then English was not my strong suit in school, I was more about math and science.
Right, put a vacuum on the output of the pump and pull fuel through the filter and pump.It's hard for the vane pump to pull air.Also take a look at the post about internal pump pressure before you tap the pressure regulator.I was warned by my bosch service center guy that too much pressure can crack the case.https://vwdiesel.cokenet.org/viewtopic.php?t=5936
I also do as Libby suggests. I crack the nuts on the injectors when I have the lines off too. It doesn't take but about a five-count holding the key in the start position to get the tops wet on at least two of them. I button them all down and have not had a problem getting it to fire up when I touch the key.I also use the jelly to hold the springs in position when rebuilding a pump. For whatever reason, they like to fall out when I am trying to position the head on the shaft.
One guy tried to use a drill on the injection pump bolt to turn the pump and prime it. He broke the nose of the mainshaft off. It's pretty thin right there where the threads are.