Internal combustion engine
As well as there are many engine layouts, there are many different parts to an engine. Some of these include pistons, camshafts, crankshafts, timing belts, valves and more. All parts of an engine need to be fully functional for it to work and all parts have a separate role. An engine works by first sending power from the car battery to the ignition coil which then causes an engine spark. The spark then ignites combustion in the cylinders and the combustion starts the engine.