I did re-use the old fuel filter. I do have a few spare new ones that I just purchased. I have ran the tractor for at least 6 hours since that day and have not had any issues since. I wouldn't be surprised it if was a stuck injector. But wouldn't it have been blowing black smoke for unburnt fuel?
Cold Start Blue Smoke rehash
- Thread starter JimR
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I did re-use the old fuel filter. I do have a few spare new ones that I just purchased. I have ran the tractor for at least 6 hours since that day and have not had any issues since. I wouldn't be surprised it if was a stuck injector. But wouldn't it have been blowing black smoke for unburnt fuel?
kbsd
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Typically that's mostly true. But fuel issues can show in different colors, grey, blue, black and sometimes even a white ish color, at least as far as I have seen. The reason I think he has a fuel issue is due to the rough idle, plus the smoke. And the fact it started after a gelling.
That is a very good point that you bring up. I used to have a 1982 Oldsmobile Delta 88 with the 350 diesel in it. Twice during its lifetime the injector pump diaphragm let go and this baby puffed out huge clouds of black smoke because it was flooding over. My tractor does have a huge Tier 4 convertor on it and the fuel may have been getting burnt up by the convertor. The stink from it was definitely diesel smell.
kbsd
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It would depend on how open the injector is stuck, it could be barely stuck open when extremely cold. Low fuel pressure can wreak havoc on injectors and pumps and cause a variety of symptoms.
Since the original gelling up issue a month ago my tractor has started up fine and ran fine for the last month without any issues. I have been very prompt on adding anti gelling agent to my gas cans before refilling them with diesel for my tractor. I've put about 14 - 15 hours on my tractor since the original gelling problem.
kbsd
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If the tractor is still under warranty it would be worth a call to them.
countrybumpkin
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My NX started smoking like that , but it ran smooth, my issue turned out to be a programming issue not regenerating correctly , it was letting the computer dump to much fuel in thinking it was trying to regen , there for over fueling it, this was all dealer fixed under warranty, a year ago, with couple hundred hours now of no issues.
kbsd
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Your issue was the one I have been trying to think of, to use as another possibility.
My tractor has less around 80 hours on it right now and has 5 1/2 years left on the powertrain warranty. I need to find a better dealer before I contact anyone. I do not like my local dealer. He already lied to me once about shipping me a replacement hose under warranty and never did. He doesn't stock hoses and it is only a $46.00 part. Kioti will cover the hose replacement if I bring my tractor to any dealer. Surely it is not worth the time or effort to trailer my tractor 60 miles to have a hose replaced for free. Plus I do not own a big enough trailer for this tractor as of yet, I will shortly.