310a backhoe High idle and kill not working.

[onalaskahoe]

The shut-valve in the pump is totally hydraulic. If fuel gets air in it, the shut-off valve will not work. When you turn the key to "off", the electric solenoid collapes and allows a strong spring to push against that valve. If it has air around it, the engine will keep running and surging.
From what you describe, it sounds like a typical case of the injection pump starving for fuel and getting air into it.

In regard to the plastic governor weight retainer ring if your pump hasn't been updated? If broken, it can indirectly cause the engine to surge and quit - but it should not effect the shut-off control.

 

[onalaskahoe]

Can anyone tell me more about this? and the best way to correct?

Chris

 

[JDemaris]

I can't tell you much more without more info from your end. As I said before, the shut-off is totally hydraulic. If there is air in the fuel, it will not shut off or run properly.

Further discussion about the specifics of the pump is a waste of time unless you verify the situation with your fuel. Air in the fuel can be caused by a plugged filter, a bad fuel transfer pump, a plugged pickup at the fuel tank, etc.

In regard to the plastic weight-retainer ring inside the injection pump? If it has come apart, there will be small specs of dark-colored plastic all over the place, inside the pump. All you have to do is pull off the little rectangular timing window from the side of the pump housing, and inspect.

I'll add that the best way to fix a pump with a failed ring is to totally eliminate it forever. Stanadyne sells a solid weight retainer with no ring for $45. If you fix with that, it can never happen again.

 

[onalaskahoe]

I understand that you need to know more, my question is when this happened i noticed that the tank was empty. It might have just ran out of fuel.
I pulled the cover from the kill solinoied and ther was NO dirt or pecies of ring anywhere.
I put more diesel in the tank resterted it for a moment to transfer fuel. from what you say the low fuel would have caused a foaming of the fuel in the pump and that could have caused the high idle and the NO kill situation.

Should I just make sure the pump is full and then restart the engine a time or two till the fuel is back as it should be?

And would this correct the issue.

Chris