The engine is, in many respects, self-sustaining, It supplies the power that drives a number of ancillary Subordinate components without which it could not work. It requires a controlled fuel supply, A timed electric spark to ignite the air-and-fuel mixture, a means of dispersing heat, and lubrication to reduce friction. These ancillary functions are carried out mainly by mechanically driven components. The crankshaft is their main power source, Through gears and sprockets or pulley-driven chains or belts. Starting the engine A powerful electric motor connected directly to the battery is used to, Rotate the crankshaft at a speed high enough to initiate The four-stroke cycle and start the engine. Starting the car, particularly from cold, Therefore makes the heaviest demand … Continue reading The engine – how it drives its ancillary parts