Now the four piston valves, firing their four strokes, in beautiful synchronism. Fuel, compression, power, exhaustâ¦ and in an animated GIF they never run out of gas.
Of course in reality, they would be arranged oneÂ in frontÂ of another so as to be turning a common shaft. Instead, these are placed side by side to better see each valveâs movement.
See full post here: The moving GIF2014-07-24.