85 740 won't start

[morgan1227]

Well I revived an old 85 740 TD that had been sitting in the desert sun for years. It started a few times and ran good, then would not start. I could re-fill the IP from the bleed screw and get it to start up. But then it started stalling, back in the garage, that's a safety issue, esp with a teen driver.

It had a new IP installed when the engine was rebuilt, but it has been sitting for 4-5 years. I put in clear fuel lines and verified no air tank to fiilter. But I noticed that when it stalled, air came from the pump BACK toward the filter housing. So I figured maybe a leaky shaft seal. I had someone pull the IP for me (it was a bear). Now it is out of the car. What should do while it is out? I have a new shaft seal. Other seals? Where can I get them, it is a Bosch VE1394L-1 pump. Replace glow plugs 5 & 6? Clean all injectors? Get the pump bench tested? Anything else? thanks, Bill in AZ