Are you getting fuel return flow while cranking, if not you have something blocked somewhere in the fuel system (check all 90 degree elbow fittings for gunk). I also second the bit about it looking like it is designed for a gravity fed fuel tank, most diesel injector pumps have very little suction ability and will also need a lift pump if the fuel tank is below the injector pump level. Since you did hear it run chances are the injector pump and injector are working to some degree, assuming it ran for more than a few seconds. It is also possible to start balky diesel engines that may still have some air in the fuel lines with gasoline fumes (do this at your own risk) by placing a shop towel soaked with a small amount of gasoline over the air intake (note there is a risk of fire/explosion if it uses grid heaters or glow plugs so if you do it use very little gasoline, maybe a teaspoon full). This usually provides enough fuel for 5-10 seconds of run time, enough for the fuel system to clear itself, or certainly enough to see if your getting good return fuel flow.
Ike
Ike
