2025R Mystery

[dodge man]

Just reiterate the little filter under the floor board is known for plugging easily. You say you aren’t in a humid environment so you don’t think you have algae. How did you get water in your fuel? If you had water in your fuel you could have algae pop up later. I’m just throwing out ideas.

 

[RjCorazza]

...
Completely agree that it seems starved for fuel. Performs exactly the same as when I had water in the fuel

Easy to say, but if you've had fuel issues in the not too distant past, I would expect water and / or microbial issues to still be the cause of your symptoms.
It may be time to "go big" on the fuel system. Drain, flush, clean, and inspect the tank. Drain and blow out all fuel lines, replace fuel filters (again). After all that, fill with fresh fuel and confirm flow at each break in the system (tank outlet, before and after each filter, and at injectors).
Not familiar with your machine, but if it has a water separator / filter with a shutoff valve, they have been known to either clog up at the valve or some have an inlet screen that is susceptible to the same.
Hope you get this sorted out.

 

[dodge man]

Yes it does have a filter/separator with a valve.

 

[Shawn T. W.]

Only running 25 hours a year, is a lot of time for fuel to just be sitting in the tank ... If not full, easy for condensation to form inside of tank, since you didn't say that you used a biocide... And there was water in the tank, there is a good possibility that the is microbes growing/living in the tiny line where the diesel is floating on top of the water, they actually "eat" the diesel, and there "poop" is what creates the black slime that fills up and plugs the filter(s).

I'd replace the little filter under the floor board again, it looks like this ... Cut off at the purple lines, as it will make it shorter and easier to install, take a picture of your old filter and post here ...

It's also possible that a fuel line/hose is kinked/pinched, restricting the fuel flow.

 

[jdwebster]

Just reiterate the little filter under the floor board is known for plugging easily. You say you aren’t in a humid environment so you don’t think you have algae. How did you get water in your fuel? If you had water in your fuel you could have algae pop up later. I’m just throwing out ideas.

The water likely came from the biodiesel I bought from a local station. A container of it that I had was off-color, and I just didn’t notice it because of the opaqueness of the container.

 

[jdwebster]

Easy to say, but if you've had fuel issues in the not too distant past, I would expect water and / or microbial issues to still be the cause of your symptoms.
It may be time to "go big" on the fuel system. Drain, flush, clean, and inspect the tank. Drain and blow out all fuel lines, replace fuel filters (again). After all that, fill with fresh fuel and confirm flow at each break in the system (tank outlet, before and after each filter, and at injectors).
Not familiar with your machine, but if it has a water separator / filter with a shutoff valve, they have been known to either clog up at the valve or some have an inlet screen that is susceptible to the same.
Hope you get this sorted out.

I think that’s what I’ll do this winter. Everything points to fuel.

 

[jeepcoma]

Biodiesel - yikes! These are not designed to work with biodiesel, I think B5 is the max on the stock setup. I believe this is a conversion to allow up to B20 but it’s an add-on. What strength was the stuff you used? It will dissolve rubber and seals, could easily be the source of your problem.

 

[jdwebster]

I think I’m going to start looking into the fuel system. Any recommendation on a pre-filter other than the JD filter under the floor board. Any reason to try and get something with more surface area or go with a cheaper non-JD filter?

Any recommendations are appreciated.

 

[RjCorazza]

I think I’m going to start looking into the fuel system. Any recommendation on a pre-filter other than the JD filter under the floor board. Any reason to try and get something with more surface area or go with a cheaper non-JD filter?

Any recommendations are appreciated.

Not quite what you are suggesting, but I took the brute force route on my Kubota L4060 and replaced the oem water separator / filter with a Racor water separator / filter (2 micron).
Much larger capacity, plus my oem initial separator was basically a strainer (steel mesh cartridge).

 

[beenthere]

I think I’m going to start looking into the fuel system. Any recommendation on a pre-filter other than the JD filter under the floor board. Any reason to try and get something with more surface area or go with a cheaper non-JD filter?

Any recommendations are appreciated.

?? Looking for a cheaper filter when already having problems ?? Not sure I understand, but good luck.

Maybe cheaper is how you ended up with fuel that has water in it ??

Suggest getting rid of the bad fuel, put in new fuel filter(s) and hope the problem clears up. Hoping for the best for you.