Brian:

No white smoke means no fuel. Check by opening the return line and pumping the hand pump -- if you don't get good fuel delivery, at least 10 ml or so per stroke, you aren't getting fuel to the IP. You can also check by loosening the injector lines at the injectors (17 mm wrench) a half turn or so, then cranking with the accelerator to the floor. If you don't get quite a bit of fuel running down the injectors, you don't have fuel in the pump.

Most likely cause is a bad suction line or plugged tank screen, followed by bad hand pump if you still have the old red handled one that screws down. If so, get a new one, it is spring loaded and doesn't leak anywhere near as much.

If the hand pump pulls up hard, try blowing down the suction line into the tank -- this usually blows enough crud out of the line to let you start the car.

If you find a leaking line, make sure you get the fuel system completely full or it will take forever to start. You will need to bleed the IP -- there is a slot-head screw on top that can be loosened to allow the air to get out.

I suspect the clear lines to the IP and fuel filter are so dark now you can't see through them, but if you can, if you get bubbles in the fuel while operating the hand pump, you have a leaking pump of suction line.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!