My diesel engine is not smoking. If your's is smoking there can be a variety of reasons, you would need to be more specific in your question
the smoking is most likely caused by the engine burning oil.
yes
no
after all spray is dried up!! engine will stop smoking after excess paint on engine has been burned off
if the engine is smoking and overheating the head gasket is blown or you popped a freeze plug
engine smoking indicates overheatingdue to low coolant and/or oil if it shutdown because of overheating you may have already done serious damage
The engine is burning oil
take away its matches,
rings or seals
More than likely the engine needs rebuilding.
Anywhere buddy