Toro dingo Kubota diesel Dies restarts

David R Inman · Mar 19, 2019

Have a Toro Dingo, with a 3 cyl Kubota diesel. It will run, but often will die, almost like its out of fuel, but then it will start back up no problem, but is liable to die again. Seams worst in cooler temps (phx area, so not below freezing) or with a cold engine. At all throttle levels it is prone to die, though generally it is not until a load is placed on it that it dies. Can die 10-15 times in ten min and then run for an hour.

Any thoughts on the cause?

johnofnewhaven · Mar 19, 2019

Maybe something floating around in the fuel tank???

Wheat47 · Mar 19, 2019

Check to see if fuel cap has a good vent.

Ivan in Mich · Mar 19, 2019

Check your fuel and see if you have anything growing in it. It will look like brown buggars

ditchwitch · Mar 19, 2019

Have you changed the fuel filter lately??

showcrop · Mar 19, 2019

That is one of the best things about a diesel. 95 % of the time it is the same problem.

T.R.K. · Mar 19, 2019

Not familiar with which engine is on it, but some of those small Kubotas have a 'start' solenoid and others have a 'shutdown' solenoid that is only energized to shut them down. Usually when the 'shutdown' solenoid version fails, the engine just doesn't stop.

If yours has the 'start' solenoid that pulls a lever or link (or pulls a plunger back if its bolted into the block) I would check the wiring to the 'hold' part of that solenoid. It has three wires and 2 circuits: One pulls the plunger in when the engine is started and the other holds it in after it starts. The 'hold' windings in the solenoid don't draw as much current as the 'pull' windings, so the solenoid doesn't burn up while the engine is running. That is why it has the 2 circuits.

Anyways, any interruption in the current to the 'hold' part of the solenoid will shut down the engine. It could be the ignition switch, a relay, a safety switch, or just a bad connection anywhere in the circuit. It could also be a bad ground connection.

kencombs · Mar 19, 2019

Another place to look is the boost pump that supplies low pressure flow to the injector pump. Not familiar with the Dingo application, but a lot of the small diesel powered equipment also has a filter/strainer in the tank that can get plugged.
,

1130Leo · Mar 20, 2019

I had a similar issue on a backhoe, found the fuel filter seal was sucking just a bit of air, unless something else has drastically changed on your machine, I would suspect fuel system is sucking air, likely filter, or rubber line deteriorated?

David R Inman · Mar 20, 2019

Ran to near empty on gas the other day, and refilled, didn't seam dirty. The gas cap, can't say as its a good vent, but it's certainly not a tight seal-plastic and broken, so we've covered it with a pvc pipe cap to keep the fuel clean. New $70 fuel filter made no difference. It's a shut down solenoid, and it don't move when it dies on its own. Believe the motor is a Family SKB719u6d2Ra.

Did find some little relay/fuse like pieces and swap them around, thinking that may have helped, and also the air filter was a mess.

If we figure out more, and I think of it, will try to report back.

SVcummins · Mar 20, 2019

Drill a whole in the pipe cap . Also check fuel flow out of the tank and to the lift pump

Traditional Farmer · Mar 21, 2019

You're saying gas now.Is it a diesel or gas motor?

Toro dingo Kubota diesel Dies restarts

David R Inman

Member

johnofnewhaven

Well-known Member

Wheat47

Well-known Member

Ivan in Mich

Member

ditchwitch

Well-known Member

showcrop

Well-known Member

T.R.K.

Well-known Member

kencombs

Well-known Member

1130Leo

Member

David R Inman

Member

SVcummins

Well-known Member

Traditional Farmer

Well-known Member

Similar threads