tractor problem

[nightowl1352]

I have a L3800 with 56 hours on it. The other day my son was moving some dirt with it and it suddly idles up and started smoking real bad, he shut it off and we restarted it and it smoked a little for a minute and then ran fine. Then yesterday I was on it moving dirt and when I got it up to around 2300 rpm, about the PTO line it idled up and started missing and smoking, I turned it off and at first it did not want to turn off but it did. I let it sit for a minute and started it back and and worked with it for another 30 minutes, never getting the rpm up over 2000 and it did fine.
Does anybody have any idea what is wrong? I am going by Kubaota sometime today or tomorrow but was wondering if anybody had any ideas.

The smoke was white, and there was a lot of it.

 

[Stumpy]

Just a guess but I've heard of stuck open injectors causing similar symptoms. You might try some injector cleaner in the fuel but that's a long shot. Ideally you'd remove and clean all the injectors or identify the stuck injector and clean that one. If it is a stuck injector you can identify which cylinder it is by waiting til it does it and then opening and closing the injector nuts one at a time til it stops.

 

[skeets]

With only 56 hours on her I think you should be callin the stealer,,just MHO

 

[motorhead]

Sounds like a "run away". Check your oil level to see if it is down. Then check to make sure the engine crankcase breather is not clogged up. If the crankcase breather plugs then the engine builds up pressure pushing oil into the cylinder. The engine then runs uncontrolled on its own oil. Had that issue with an early VW diesel.

 

[Bulldog]

The smoke and running bad sounds like water in the fuel to me but increase in engine rpm's doesn't normally happen with water.

Stumpy and Motorhead both have valid causes for your problem.

With 56 hrs on the tractor I assume it's new and under warranty. I would let it be a dealer fix if for nothing else just so you will have a paper trail of the problem in case it happens again down the road. CYOA because nobody else is going to do it for you.