Cummins n14 smoking while engine been off after running

Hello, I have a cummins n14 why is there still smoke coming out of the stack, when the engine been off after driving it? Any thoughts?

 

What color is the smoke

 

It’s white smoke

 

When you idle for a while do you get kind of a burnt oil smell and a little white smoke and then it clears up?

 

Yes that’s exactly what happens

 

And when I shut it off it’s smoke for a little bit

 

Turbo time!

 

would you say that I would need to replace it right away or I have some time?

 

The only other thing it could be is if you have a cylinder bypassing oil when it’s cold and idling,but usually it won’t smoke after you shut it off a turbos about the only thing that will usually do that but it’s definitely oil from a cylinder or oil bypassing turbo seals!

 

thanks for the response.