1 have a Kubota diesel in a large - 11' cut mower. was running fine. let it set for almost aear without starting. it started and ran fine for a few minutes. I shut it off. a couple of weeks later it would start , but only stay running for a few minutes and not speed up. now it does nor want to start. I did buy fuel at a gas station and not the recommended truck stop. I am guessing I have a fuel problem? considering replacing fuel filter? and ?? when I get it running? what fuel additives should I use? SW Michigan.
- Thread starter MI-Bill
- Start date
jon f mn
Well-known Member
Likely just a bad filter. Sitting that long with the fuel level low would create a lot of condensation, so there is likely water in the filters. I would be very surprised if you hot bad fuel tho. As far as conditioners, you will need one that clears water and those are not real common so look at the bottle when you buy.
Determined
Well-known Member
Have you checked for a nest or other obstruction in the air filter and piping.
Farmer Rock
Member
Like others said,it's most likely a bad filter.The best thing to do,is drain the tank then run 40% kerosene to 60% fresh diesel to clean the fuel tank,and entire fuel system,but you will have to replace the fuel filter afterwards since all the junk from the tank and fuel lines will end up in the filter,so try doing this first to avoid changing the filter twice.but even if you have to replace twice,it is well worth it,since kerosene is far better than any in the bottle cure.
Rock
Rock
Your water separator might be part of the fuel filter. I have a Tonks~Toy Kubota with that feature. I serviced it and found the filter housing was partially filled with water and the rest was ugly gunk. Algae treatment might be in order if you let it set a long time regularly.
oldwrencher
Member
diesel expert told me in diesel trucks/tractors built before 2007 on road fuel does not have adequate lubrication unless it is added. He suggested adding transmission fluid to such fuel and neighbors with similar problems to yours cured their problem by doing just that. Such advice is worth it's cost. Have a blessed day
guido
Well-known Member
Hello MI-Bill,
Replace the fuel filter, and drain all the old fuel out of the tank. If there is a way to drain the fuel pump, drain it first.
After filling the tank with new fuel, bleed each injector line until you see the new fuel coming through.
Doing so will not only ensure you have new fuel all the way to the injectors lines, but you will have also blead all the air out of the system. It should fire off then,
Guido.
Replace the fuel filter, and drain all the old fuel out of the tank. If there is a way to drain the fuel pump, drain it first.
After filling the tank with new fuel, bleed each injector line until you see the new fuel coming through.
Doing so will not only ensure you have new fuel all the way to the injectors lines, but you will have also blead all the air out of the system. It should fire off then,
Guido.
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