Kubota Diesle 326 shutting down about to die
#1
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Kubota Diesle 326 shutting down about to die
This has 250hrs About a month ago I was mowing and it powered down about to die.. I cut the blades off sat there and it picked back up I went mowing again.This happen again about a day later... I had checked my blade deck to clear all lose grass from the deck... Last week I take off the 2 filters and the fuel pump they all connected.. I went and bought 2 new filters and put on yesterday.. I mowed my front yard today takes about a hour no problem I go to the back and when going up a good size hill it almost dies. I cut off the blades let it sit.. When this happen before th filter change it was not this bad this time it almost died... After it sits it powers back up and ok..
Wife wants to go into town I put it in the shop i switch to the 2nd tank.I come back in a hour. I look under the mower at the filters and see no bends in the lines.. I fire it up and it starts fine runs about 5 min then it powers down almost dies just sitting there...
Guys how do it find this one out. I got 5 hrs of mowing to do tomorrow,
Wife wants to go into town I put it in the shop i switch to the 2nd tank.I come back in a hour. I look under the mower at the filters and see no bends in the lines.. I fire it up and it starts fine runs about 5 min then it powers down almost dies just sitting there...
Guys how do it find this one out. I got 5 hrs of mowing to do tomorrow,
Last edited by fatdaddy; 08-21-13 at 08:28 PM.
#2
If you disconnect the fuel line from the filter and turn the key on, does the lift pump shoot fuel out the line? Sort of sounds like a fuel supply problem, like the lift pump or maybe it's picking up air.
#3
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I suspect the fuel. Running fine on level ground but bogging down when climbing a hill and mowing is a classic example of clogged fuel filters. Dying and weak running after a filter change makes me think of air in the lines.
I suspect that you also have not got the fuel system completely bled but my two Kubotas are pretty sensitive to requiring the fuel lines completely bled. My John Deere's self bleed pretty well and seem to tolerate air in the lines much better.
If you have not changed the fuel filters in a long time I would re-bleed the fuel lines all the way to the injectors or just run it and restart it when it dies hoping it eventually works the air out itself. If you recently changed filters and then they clogged I would consider draining the fuel tanks and rinse them out, toss all the fuel from that batch and refill with fresh fuel. I have gotten contaminated fuel once that clogged the filters, installed new filters and they got clogged within hours. I was amazed at how bad a batch of fuel can be contaminated and how quickly it can clog filters enough to cause trouble.
I suspect that you also have not got the fuel system completely bled but my two Kubotas are pretty sensitive to requiring the fuel lines completely bled. My John Deere's self bleed pretty well and seem to tolerate air in the lines much better.
If you have not changed the fuel filters in a long time I would re-bleed the fuel lines all the way to the injectors or just run it and restart it when it dies hoping it eventually works the air out itself. If you recently changed filters and then they clogged I would consider draining the fuel tanks and rinse them out, toss all the fuel from that batch and refill with fresh fuel. I have gotten contaminated fuel once that clogged the filters, installed new filters and they got clogged within hours. I was amazed at how bad a batch of fuel can be contaminated and how quickly it can clog filters enough to cause trouble.
#5
Yeah, you gotta have air on top of the fuel for it to flow
Does it happen only on one tank? My ZD21 only has the one tank. I don't know what I'd do with more than one. It runs all year on 8 gallons of fuel it seems.

#7
THAT much water entered that puky hole??? Wow. Yeah, my resolution didn't show the left cap as having a cover. I thought it was clogged, but I see on mine it is an air admittance cap. So, I guess you had a bunch of water in the tank??
That's what I like about my Cummins. It has a "water in tank" sensor, and a drain to rid the filter of water as it gets there.
That's what I like about my Cummins. It has a "water in tank" sensor, and a drain to rid the filter of water as it gets there.
#8
I just cleared a bunch of water out of my GF1800 kubota diesel too. It doesn't even have a hole in the cap like yours. Can't figure out how it got there, but it was in the injector pump, lines, and tank.
#9
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I was going to un plug my tank put in more diesel let it drain.. Guess I could just un connect the filter from the tank and flush it.. That would do the same just as good???
#10
The water will find the lowest point of everything it gets in. The tank, filter, and lines. If your fuel exits at the lowest part of the tank, then you might be able to flush it that way.
#12
Have you tried Tractor Supply? They sell most small parts like that. Or google Kubota and the model number to see if the hits provide parts houses near you or on line.
#13
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I found a lot of fuel caps online. Just do a Google search for "Kubota ZD326 fuel cap". I try to avoid Ebay like the plague but there are many reputable parts dealers that came up in my search. And as a last resort have you checked with your Kubota dealer? Fuel caps are a pretty common replacement part so I'm sure they have it on the shelf.