2014 Kubota BX1870 Tractor - Engine bogging down and stalling.

[dodge man]

BX engines are high pressure common rails so the injectors are a little less delicate but I still think any cleaning or rebuilding of them should be done by a shop. If you take a fuel line off up near the engine does fuel flow freely?

 

[dodge man]

A question. There is a yellow light in the middle of your dash in your video. Looks like a fuel warning light. What does that mean?

 

[Shane Hanna]

A question. There is a yellow light in the middle of your dash in your video. Looks like a fuel warning light. What does that mean?

Yellow light is fuel low indicator, I only put about 1/2 gallon of fuel in it in case I needed to drain it. It is well over the fuel outlet.

 

[dodge man]

What I’m really trying to get you to do is make 100% sure you are getting fuel to the main injection pump before you start taking injectors out. The best way is to take a fuel line off as far forward as possible and make sure it flows out by gravity. When I had a BX and had filters plugging up from fuel gelling the outlet side of the filter didn’t hardly let any fuel out but once the filter was removed fuel poured out. You tractor sounds exactly like mine did when the fuel gelled in the filter.

 

[Shane Hanna]

Thank you all for your feedback and help. I am happy to report that I just plowed snow for an hour and a half, and it ran perfectly the entire time. I am not sure what happened, my theory is maybe I did not get the fuel system bled enough, or there was some kind of obstruction that worked it 's way out. Thanks again.

 

[Shawn T. W.]

It "should" self-bleed once you turn on the key, the electric pump should start clicking/pumping, and return any unused fuel to the tank ...

But glad it's working, sure beats using a shovel!

 

[Shane Hanna]

Yeah shoveling was not an option, 800 feet of driveway...not a manual option.

 

[Shane Hanna]

It "should" self-bleed once you turn on the key, the electric pump should start clicking/pumping, and return any unused fuel to the tank ...

But glad it's working, sure beats using a shovel!

You are 100% right, I idled it bot low throttle, and high throttle. Thank you for your response.

 

[IFixTractors]

One other possibility not discussed, and can be an intermittent cause.
On the BX series machines, the fuel cutoff solenoid is external to the engine, a simple pull type solenoid that pulls and holds the cutoff lever until the engine stops. It holds for maybe 5-8 seconds. It is a round solenoid with a pin/rod puller, and has a rubber boot. It is an electric pull, spring return out. Normal operation/engine running is that the rod is fully extended. In certain instances, lack of lubrication or corrosion inside, the solenoid can pull in but the spring may not return fully. Or, the cutoff lever may stick and not return to running position. A bit of lube, spray nozzle inside the rubber boot, etc, and on the cutoff lever can help. I have seen this on at least 15 different machines, but I am located in Florida and corrosion is one of the very first considerations after bad fuel/filters. Glad yours is running well.

 

[Skystream]

Yes, I actually upgraded to a fuel filter water separator combo like 4 years ago, so I think I am good there. Thanks.

Shure sounds like fuel issue. If you have done everything above, pull the fuel line off injector pump and turn key on and collect the flow. See if there is any change in flow rate. Should hear the clicking noise of electric transfer pump.
Changes in flow related to transfer pump or debris floating in tank. Suction is at bottom of tank.
More than likely the latter and pull the tank.