Hello. My name is Dave Roberson. I own a small shop in Mesa Az. One of my customers gave me an 1981 240D. Auto Trans. It is a no start. Here is what I have done before trying to start.

Drain fuel tank..replace hoses and blow out lines.
New Primer pump..new fuel filter..new fuel hoses in engine compartment.
New Battery and 00 Cables made.
Remove injectors..clean and do a pop test on my bench tester.
Check glow plugs..glowing brightly..check compression...LOW 180 to 280.

Now the problem..I have good fuel flow to the injection pump with no air. I have cranked and bleed the injector lines.(seems to have little pressure but some) Very little fuel is comming out of the injection pump. Not enough to pop the injectors (make them spray).

How do I check the injection pump?? The vac hose to the fuel shut off is disconnected.

Is their an common problem that I am not aware of due to my lack of product knowledge on this car??

Thanks in advance for your help. Dave