Fueling problem w/ JD 790

[nolewatcher]

I have bought a JD 790 that has been parked the past 2 years. It has only 65 hours on it, but because it has been sitting the valves in the injector pump seems to be stuck. No fuel. I have plenty of supply to the pump, but none out. I read on a forum that I should 'tap' on the pump as I turn the engine over, I will try that tomorrow. But if that doesn't work, what should be the next step?

 

[nolewatcher]

Well, I tried the "tapping" trick while turning the engine over....there was no luck. Removed the fuel lines at the top of the pump, no fuel at all when I spin the engine over. Any ideas? Will I have to take the pump in for repairs?

 

[koko3052]

Is there any way that you could "pressure" some fuel to the pump while cranking over. Maybe taking the line off at the tank & using an air hose to try to "force" it into the pump. I would empty the inlet line of fuel, then fill it with Seafoam, then try to force that into the pump. Let it sit for a day & then try starting it.
Seafoam is wonderful stuff for removing varnishes & carbon….. today's fuel is absolute CRAP!