I am in the process of trying to resurrect a 86' 444c thats been sitting for 10 years. Ive already worked though a few other issues and have drained fluids etc. Currently i dont have any fuel getting to the injectors. Ive gone though 7-8 cycles of crank 20 seconds wait 2 minutes.
Ive got fuel going into the injection pump if i crack the line. However ive got the injector lines cracked and not even a dribble of fuel. I took off the return line from the injection pump (the one with the arrow pointing to it) and there was no fuel whatsoever coming out of it. After cranking if i open the screw thats circled (im guessing it bleeds air from the pump) there pressure and fresh diesel behind it and if i take the screw out fiel squirts out for a second until the pressure is releived.
Ive read the following can be issues for no fuel at injectors:
1. Solenoid not working
I can hear the solenoid click when it is turned to start. The resting voltage at the batteries and starter is 12.6 volts. The solenoid sees 11.4 in key on position and while cranking the voltage drops to 9.2. Some people have said wires that are almost broken can cause the solenoid to not stay open when cranking. Is 9.2 volts enough to keep the solenoid from shutting off the fuel supply?
2. Broken injection pump shaft
Im really hoping this isnt it. Since when i open the screw that is circled and there is pressure im hoping the shaft is intact. Also before i did anything i turned the engine over by hand and it turned freely. If the shaft broke i feel like i would have heard it and felt resistance when i first turned it over
3. Stuck metering valve
Ive never been inside an injection pump so if anyones got advice im all ears
The machine ran when it was parked there. Just forgot about for 10 years.
http://ift.tt/1LGNrEm
Ive got fuel going into the injection pump if i crack the line. However ive got the injector lines cracked and not even a dribble of fuel. I took off the return line from the injection pump (the one with the arrow pointing to it) and there was no fuel whatsoever coming out of it. After cranking if i open the screw thats circled (im guessing it bleeds air from the pump) there pressure and fresh diesel behind it and if i take the screw out fiel squirts out for a second until the pressure is releived.
Ive read the following can be issues for no fuel at injectors:
1. Solenoid not working
I can hear the solenoid click when it is turned to start. The resting voltage at the batteries and starter is 12.6 volts. The solenoid sees 11.4 in key on position and while cranking the voltage drops to 9.2. Some people have said wires that are almost broken can cause the solenoid to not stay open when cranking. Is 9.2 volts enough to keep the solenoid from shutting off the fuel supply?
2. Broken injection pump shaft
Im really hoping this isnt it. Since when i open the screw that is circled and there is pressure im hoping the shaft is intact. Also before i did anything i turned the engine over by hand and it turned freely. If the shaft broke i feel like i would have heard it and felt resistance when i first turned it over
3. Stuck metering valve
Ive never been inside an injection pump so if anyones got advice im all ears
The machine ran when it was parked there. Just forgot about for 10 years.
http://ift.tt/1LGNrEm
JD 444c No Fuel at Injectors
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