The rotation of the car’s engine is partially connected via a pulley system to run other systems in the car. An engine pulley is mounted to the car’s engine and drives all belts.
The belts receive energy from the crankshaft pulley and transfer energy to other systems in the car. Without a pulley system, the other systems such as power steering, air conditioning compressor, the alternator, water pump, and the radiator fan would fail to work properly or even work at all. There are two types of pulleys Crankshaft Pulley and Accessory Pulley. A crankshaft pulley powers components on the crankshaft. Crankshaft pulleys transmit mechanical power and torque, or the force of motion, through the pulley system to other pulleys via serpentine belt or V belt.