What is the difference in an Engine, and a Motor?

[Elbow]

Engine is not belt driven as a motor is driven by a tensioning rod spring.

[redrumracer]

Engine is not belt driven as a motor is driven by a tensioning rod spring.

electric motor?

[StraightSix]

Engine is not belt driven as a motor is driven by a tensioning rod spring.

Neither of which could possibly be true. Motors and engines are the source of angular motion, and are thus the drivers. Energy goes in, motion come out and drives wheels, pulleys, or whatever.