Kubota keeps stalling out

[RjCorazza]

Is there any fuel additive to avoid this problem

There are biocide additives to prevent bacterial growth as a preventative measure. Keeping water out of the fuel is the real answer. A severely slimed bacterial contaminated fuel system is a disaster to deal with. Well, maybe not a disaster, but a LOT of work to clear up.

 

[WarrenPFJr]

I was quoted $350 a piece for new injectors. So that’s a bit more than I want to spend right now if I can avoid it. I will definitely try all of those cheaper suggestions listed above. I did snap that return line around the injectors, so I’m driving to get that part now. And I will probably clean the injectors since I have them out and get new seals for those as well. Once everything is put back together, I will start with cleaning out the gas tank and move my way forward. Thank you to all for your suggestions.

 

[dodge man]

Starting with thinking it’s an injector problem should be the last thing not the first.

 

[Eagle1]

If runs a few seconds and then dies I would be looking at the fuel shutoff solenoid and associated wiring/control.

 

[rScotty]

Almost certainly crud in the fuel system somewhere. You have to go through it from tank to pump. Second choice is the Fuel Shutoff solenoid. Best test there is to just plumb around it.

 

[5030]

Little word of advice...DON'T SCREW WITH THE INJECTORS. You need an injector test stand to fiddle with them and 'cleaning' them will only result in more issues.

 

[WarrenPFJr]

Well I got everything back together. Replaced the fuel filter. Disconnected the fuel line just before the filter and have fuel flowing. Disconnected fuel line before the injector pump and have fuel flowing. Took a while to start probably due to air in the lines. According to the manual you bleed the air out of the fuel line by starting and letting run for 30 seconds, then turn off. Once it started I got a banging sound so I immediately shut it down. What is that about!?

 

[RjCorazza]

I think you are at the point of having a professional fix your tractor.

 

[WarrenPFJr]

The knocking went away then came back. I took a vid but not sure how to post it. Maybe one piston wasn’t getting fuel so it was dry? When I rev the engine it gets worse. It idles now and every 5 seconds or so there is a slight knock or knock, knock.

 

[YanmarFever]

Were the injectors put back on properly, because the knocking started after you removed them for inspection.