No, the engine doesnt... just both of the purple "things" (dont know their name in english). From the flywheel to the engine, nothing moves, but after the flywheel, the black thing (inside of which there are 2 centrifugal objects), they turn. This is what moves (Expcet the flywheel). [link=http://www.hpiracing.com/graphics/press/p86038_2.jpg]picture here[/link]