Still won't start :(

It STILL won't start despite lots of messing about with pumps and pipes!

Basically it wasn't just the union going into the lift pump but the threads were fubar'd and it was leaking. My local Landy specialist didn't have a used pump so I had to buy and fit a whole new lift pump which I did without too much trouble. Even though this meant removing the existing studs and replacing with longer ones and an adapter as they don't make the old style pumps any more.

I then filled the fuel tank with a jerry can's worth of extra fuel (so now over 1/2 a tank) and pressurised it from the fuel filler using a rag and air compressor. Fuel then came out of the disconnected fuel pipe that goes into the lift pump which was then secured and I hand primed the pump until it came out of the lift pump outlet. All pipes were then secured back on again and bled as people have said above. I tried to start it and eventually it did fire up for a few seconds but then died. This happened a couple of times until the battery (and then booster battery) died on me.