starting issues on 4020

[Tx Jim]

IIRC '70 model 4020 required operating fuel solenoid on inj pump to be receiving 12 volts when ign switch is turned to on. Which style inj pump JBD or CBC?

 

[Scott 730]

IIRC '70 model 4020 required operating fuel solenoid on inj pump to be receiving 12 volts when ign switch is turned to on. Which style inj pump JBD or CBC?

^^^This^^^

 

[bv]

When you were trying to get fuel to the injectors did you crack the high pressure lines at the injector ends, have the throttle open at least half way, and fuel shut off set to run while cranking the engine over with the starter? Just confirming your process.

yes sir we tried everything so is there anything else I can try before I remove the pump and send it to the shop?

 

[bv]

IIRC '70 model 4020 required operating fuel solenoid on inj pump to be receiving 12 volts when ign switch is turned to on. Which style inj pump JBD or CBC?

12 volts and JDB pump

 

[bv]

it's been sitting in the barn about 10 years and maybe something stuck or gummed up?

 

[Jim.ME]

it's been sitting in the barn about 10 years and maybe something stuck or gummed up?

More than likely stuck

 

[bv]

More than likely stuck

so time to go to the shop I'm assuming.

 

[Jim.ME]

so time to go to the shop I'm assuming.

DM Dieseltech and see if he has any other though but it sounds like a shop is the best place for it now.

 

[Scott 730]

12 volts and JDB pump

Can you hear or feel the solenoid working when the key is turned? Not that difficult to pull the cover and verify that the metering valve is free.

 

[Glen D Anderson]

12 volts and JDB pump

Have you confirmed the voltage at the fuel solenoid stud while actually cranking the engine?

 

[bv]

Have you confirmed the voltage at the fuel solenoid stud while actually cranking the engine?

I had to remove the starter and take it back to the shop but when I get it back on I will sure check that, thanks again.

 

[bv]

When you were trying to get fuel to the injectors did you crack the high pressure lines at the injector ends, have the throttle open at least half way, and fuel shut off set to run while cranking the engine over with the starter? Just confirming your process.

yes sir before I finished checking everything my starter quit working so I hope to get it back on before the snow this weekend, thanks Jim.

 

[bv]

Can you hear or feel the solenoid working when the key is turned? Not that difficult to pull the cover and verify that the metering valve is free.

when I get the starter back on I will check into this, I've never even tried to work on any pump so I guess I could check that before I remove the pump, but Dieseltech works on all of my pumps and does excellent work!

 

[matthies]

In case you are not getting power to the inj pump, there is a slow burn fuse under the cowl in front of the pto lever to check.