Blue smoke on cold start/cold outside

[DK35vince]

Unburned fuel from starting in the cold.
Are all the glow plugs working ?
It clears up after running a short time.
Personally I'd just run the thing. My DK 35 will puff and blubber for a little bit on startup when it gets cold.

 

[liberty2701]

[
It originally happened in july . Dealer said it was fuel but never tested any injectors. It has been fine until recently when it got cold. It is under warranty. I should probably contact the dealer again and insist on them diigging deeper into it. What do you think?




QUOTE=Coyote machine;4299582][/QUOTE]

Good video. It sure looks like a misfire from a pissing injector to me. You can watch the pulsing of the smoke from the exhaust pipe. As it starts to clear up it still spits occasionally.
That's my best bet. Seems the glow plugs are working from what you described.
I am confused about when this issue has been present. You said it happened in July too? That might explain why, if it's an intermittent injector why it occurs at various times including hot weather when cold start issues like glow plugs are largely irrelevant.
I'd pull all injectors and have them pop tested for spray pattern and opening pressure. Especially now, when the problem is present.
One injector could be acting rogue on it's own timetable. Testing them will tell you if they are the problem. Any qualified diesel shop can test them- they don't necessarily have to go to your dealer. Just note which came from what cylinder when you pull them.[/QUOTE]

 

[Coyote machine]

[
It originally happened in july . Dealer said it was fuel but never tested any injectors. It has been fine until recently when it got cold. It is under warranty. I should probably contact the dealer again and insist on them diigging deeper into it. What do you think?




QUOTE=Coyote machine;4299582]

Good video. It sure looks like a misfire from a pissing injector to me. You can watch the pulsing of the smoke from the exhaust pipe. As it starts to clear up it still spits occasionally.
That's my best bet. Seems the glow plugs are working from what you described.
I am confused about when this issue has been present. You said it happened in July too? That might explain why, if it's an intermittent injector why it occurs at various times including hot weather when cold start issues like glow plugs are largely irrelevant.
I'd pull all injectors and have them pop tested for spray pattern and opening pressure. Especially now, when the problem is present.
One injector could be acting rogue on it's own timetable. Testing them will tell you if they are the problem. Any qualified diesel shop can test them- they don't necessarily have to go to your dealer. Just note which came from what cylinder when you pull them.[/QUOTE][/QUOTE]

For reference, just hit reply with quote to quote something already stated in your thread.
YES, definitely contact your dealer and tell them what you want and show them the video too. I'd make sure you discuss testing the injectors, first and foremost, and tell us what they say.
This needs to be fixed, so each cylinder runs as intended.

 

[liberty2701]

I will contact them on Friday. Happy Thanksgiving.

 

[Jerry/MT]

I had posted last year that my DK50 se was blowing lots of blue smoke on startup. Sent to dealer under warranty check and they attributed it to bad fuel. I received a $170 bill for that. Now that it is cold outside I started my tractor and it it blows tons of blue smoke for about 30 sec. It blows and blows until I raise the idle and then it starts to clear up and run smoother, It sound like an engine misfire when it is doing this. I did check all the glow plugs for function and they are good. I even swapped the fuel with no change. Is this a normal cold start for a Kioti? I have around 240 hrs on a 2014 model. I tried uploading a video and it is too big. I really do not want to go back to dealer and get another bill. Ran fine all summer with no smoke at all. It sucks because my MF before this never smoked on startup. I have to leave the barn until it clears so I can breathe. Any idea if I can upload the video? Zip file says 25mb

I wouldn't say that this problem is uncommon. It's tends to be more common on diesel engines with pre-combustion chambers that with direct injection diesels. I don't know what type you have. Even direct injection diesels have problems if the temperatures are low enough.

Does the OEM have any special starting procedure for cold starting? Like maybe double cycle the glow plugs, put the throttle in the mid position, etc. Are you using a winter blend fuel? Since the engine runs well and starts well in warm temps then I suspect the engine is in good mechanical condition especially with just 240 hrs on it.

Some of the newer machines have emission controls that change the injection timing when the coolant temperature is below a certain temperature. Do some research and see what you have . Our NH TD95D has a Tier II engine and it has this feature. If I start the TD95D in really cold weather and I haven't used the block heater, I get about 10-20 seconds of stinky smoke that's I believe is partially burned fuel. The diesel combustion process depends on high compression temperature to ignite the fuel and that peak temperature is reduced in cold ambient conditions and the cold cylinder walls at start up don't help the combustion situation.

I use the block heaters on both our Ford 4610 and the TD95D if the temperatures are 40F or lower. I get quick, easy starts with no prolonged smoke. It easier on the battery, the oil is warmed on the cylinder wall and it's just plum easier on the engine. The cab heater also starts throwing warm air quicker. I'd strongly recommend that you consider adding a block heater if for no other reason it makes cold starting easier. They are not expensive and are generally easy to install. And it may fix this "problem".

 

[Coyote machine]

I will contact them on Friday. Happy Thanksgiving.

Good plan. Same to you!

I wouldn't say that this problem is uncommon. It's tends to be more common on diesel engines with pre-combustion chambers that with direct injection diesels. I don't know what type you have. Even direct injection diesels have problems if the temperatures are low enough.

Does the OEM have any special starting procedure for cold starting? Like maybe double cycle the glow plugs, put the throttle in the mid position, etc. Are you using a winter blend fuel? Since the engine runs well and starts well in warm temps then I suspect the engine is in good mechanical condition especially with just 240 hrs on it.

Some of the newer machines have emission controls that change the injection timing when the coolant temperature is below a certain temperature. Do some research and see what you have . Our NH TD95D has a Tier II engine and it has this feature. If I start the TD95D in really cold weather and I haven't used the block heater, I get about 10-20 seconds of stinky smoke that's I believe is partially burned fuel. The diesel combustion process depends on high compression temperature to ignite the fuel and that peak temperature is reduced in cold ambient conditions and the cold cylinder walls at start up don't help the combustion situation.

I use the block heaters on both our Ford 4610 and the TD95D if the temperatures are 40F or lower. I get quick, easy starts with no prolonged smoke. It easier on the battery, the oil is warmed on the cylinder wall and it's just plum easier on the engine. The cab heater also starts throwing warm air quicker. I'd strongly recommend that you consider adding a block heater if for no other reason it makes cold starting easier. They are not expensive and are generally easy to install. And it may fix this "problem".

Sorry, the block heater won't cure a problem that shows up in July. The OP needs to get his selling dealer to test his injectors, while under warranty, and fix the problem.

 

[DK35vince]

Good plan. Same to you!



Sorry, the block heater won't cure a problem that shows up in July. The OP needs to get his selling dealer to test his injectors, while under warranty, and fix the problem.

I'm with Jerry.

 

[Coyote machine]

I'm with Jerry.

I'm with the OP to get his tractor fixed, while under warranty. Block heaters, and doubling the glow plug cycle times would only tend to mask the actual problem. Let's not forget that the current temps in New England; NH in particular, are hardly cold. Maybe some mornings in the low 30's or high twenties at best.

No matter what the actual problem ends up being, the OP deserves the best attention to this issue his dealer can muster. Let him seek it out. This isn't about who's right, it is about getting his tractor right.

 

[DK35vince]

I'm with the OP to get his tractor fixed, while under warranty. Block heaters, and doubling the glow plug cycle times would only tend to mask the actual problem. Let's not forget that the current temps in New England; NH in particular, are hardly cold. Maybe some mornings in the low 30's or high twenties at best.

No matter what the actual problem ends up being, the OP deserves the best attention to this issue his dealer can muster. Let him seek it out. This isn't about who's right, it is about getting his tractor right.

Your the one that thinks there is a problem, not me.
My work truck with a 4 and a quarter Cat will smoke like a chimney and shack your coffee off the dash for the first 3 minutes its running when I start it in any temp below 30F.

 

[Coyote machine]

Your the one that thinks there is a problem, not me.
My work truck with a 4 and a quarter Cat will smoke like a chimney and shack your coffee off the dash for the first 3 minutes its running when I start it in any temp below 30F.

I know there is a problem. The OP described it already. It's intermittant, happens in July, which makes no sense regarding glow plugs and block heaters, since neither is needed in northern New England in July.
Just let the OP take it to his dealer to fix it, and stop trying to argue with me - I'm not going to go round about this with you.

Your Cat diesel has little to no bearing on this tractor situation.