Question by mega_fimos: What makes a piston move in the other 3 strokes in car engines?
A piston moves down during the compustion stroke because of the energy produced by fuel compustion… but what makes it move up again during exhaust stroke then down during intake stroke then up in compression stroke?
Answer by Bolivar
1. Momentum for one thing. An object in motion remains in motion until acted upon by a force.
2. The remianing pistons firing and keeping the crankshaft in motion. All the pistons are connected to the crankshaft, so each piston in turn fires, and drives the crankshaft and all the pistons continue to move.
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