Dad and I bought a 7700 out of a neighbors pasture because we had an idea to use the engine in a 4010 that went down. Nixed that idea and got another 4010 engine so decided to tinker with the combine engine. It sat at least 15 years, perhaps 20, but it was only lightly stuck and we got it broke loose and turning freely. Took intake manifold off to get some oil down the intake valves and cranked it over and oiled some more and replaced manifold. Continued cranking and it would not fire, tried either and it would hit on that. So we confirmed fuel flow from filters at the pump and then cracked all injection lines and cranked it over and we are getting zero fuel delivery, no wetness at all with throttle lever at wide open. This engine is like a 4430 tractor so the inline pump is on the back side where its not easy to get at and we"ve never worked on the Bosch pump. What should we do in order to determine why the fuel rack seems to be stuck in no fuel position? The stop cable was pushed in all these years but we did get it to move stubbornly after getting the cable somewhat freed up. The throttle lever moves freely enough and works against spring tension.