DK45 smokes white at all times

[MinnesotaEric]

When first started, does the coolant come up to pressure before it warms up? if so, bad news: cracked head or blown head gasket. Milky oil also tells the same story. Is your coolant low after every use? then it is the same diagnosis: cracked head or blown head gasket.

On startup you will see a little white smoke that is water vapor, but once up to temp, that goes away unless it is cold outside. Alternatively, leaking, dirty injectors can be the cause of some smoke and especially so when warming up when the engine requires a richer mixture.

That said, if you are smoking to the point where friends, family and neighbors are pointing at your tractor as the source of smog in China, then yeah, you have a cracked head, or a blown head gasket, or the deck or head are warped leading to a head gasket failure or the injectors are so bad that it is time to pull them and bench test them.

Good luck.

 

[Badmonky]

Hi all, for some reason I have not gotten notification for the last few replies. I very much appreciate all the help. I do have some news.

After troubleshooting a bunch of the mentioned possible issues I decided to start pulling the head to observe and possibly get it machined. Luckily i started with taking the intake off and to my horror I saw a shop towel stuck in the port for cyl1 completely blocking it. I couldn't believe it. Someone forgot a towel in the intake, who knows how long ago. So I removed it and put it back together and what do you know. As soon as every cylinder gets air, the thing runs alright.

I only hope now that the previous owners did not run it very long like this.

 

[Robin Veerman]

Unbelievable. It might have “run-away” and someone stuffed rags into the intake to snuff it out?! Happy for you!!!

 

[o2batsea]

WTCF? Glad it's a "zero dollar" fix.