What color the smoke is makes a difference, blue smoke=engine oil, black smoke=excess fuel, white smoke=engine coolant.
This engine could have burnt rings in it. There also could be an old leak which is running down on the manifold which would cause the engine to smoke.
Blue smoke? The end result of a tired engine. White smoke? Cracked head or bad head gasket.
yes...the lack of air would causes excessive fuel which would cause black smoke.
This is not that uncommon. Some oil is so hot that it will start to smoke. The smoke can escape through this opening to the engine.
White smoke coming from the engine can mean many different things. One such thing is that your car may have a blown head gasket or that oil is burning in the engine.
White smoke = Coolant leak, head gasket is the likely culprit. Blue smoke = Engine burning oil. Black smoke = Engine running too rich, wasting fuel.
The engine would smoke and damage the bores.
The exhaust should be colorless. Smoke is created by an imbalance of the oil:fuel mixture. Black smoke is too much fuel (rich). White-blue smoke would be too much oil.
Yes, if the the engine is a steam engine or a diesel engine. The diesel engine smoke should be almost invisible when the engine is in good condition. Electric locomotives are not typically called "engines", but these do not produce smoke.
The color of the smoke will help identify the problem. Blue smoke is engine or transmission oil. Black smoke, excess fuel. White smoke, engine coolant.
Could be a bad head gasket. You would get engine oil leaking into the cylinder heads and that would show as smoke out the tail pipe.