You're waiting around for advice on how to get the pump working... LOL after changing?? You did all the hard stuff and if comfortable with that ???
Now the question is why no pump, what else is missing, how long was it sitting, last time it ran?? on and on. Gets to be a crap shoot... but if one feels lucky, and disregards the other systems like "start box & glow plugs" try and start it... going easy on the start part. Could check for fuel flow at the water separator hose, then close that off and crack an injector line to see if one get a dribble. This whole "first start" can be & has a lot of variables or steps to assure a success. Feeling lucky ? Crank it over, wait a little crank again not to overload starter or battery.
Having just picked one up (famous last words) A new pump is a good feeling till it sucks up the 20-30 years of crap. IMO I would go thru the whole fuel system or at least get eye's on the inside tank looking for dirt, algae and crud in general. Then R&R the fuel filter elements.
Lately fuel headache are more and more common on recent sales. AND I don't trust anything or anybody at this point. I'am, is the gun half loaded ?? kinda guy.
If I just purchased one and before getting all excited to go for a spin...I would look closely at the fuel system. Simple stuff to light pain in the butt LOL to drop it and refresh / clean or replace all the bits that go with it. Once done... shouldn't ever have to revisit it again.
It's a little work, but then owning a HumV is work, then play. In MY world.
Things to think about are pick-up sock, sender , roll over valve, vents, check valves, seals, gaskets, lines, connecting hoses /clamps, drain plug, cap, maybe even a crack or a hole drilled into it. etc.
Sure it 's a days work... but knowing one has a "clean bill of health" on this important system is very reassuring when out the road.
Fix it now or if fix it later. At least check it well, CAMO
GOOD LUCK fingers crossed stand back here we go.........
