What is a Timing Belt?

[FrankRose]

Timing belt is a crucial component of the engine's valve train system. It ensures the accuracy of intake and exhaust timing by connecting to the crankshaft and maintaining a specific transmission ratio. The reason for using a belt instead of gears for transmission is that belts produce less noise, have minimal self-variation, and are easier to compensate for. However, belts have a shorter lifespan compared to metal gears, so timing belts need to be replaced regularly. During the operation of an automobile engine, four processes continuously occur in the cylinders: intake, compression, explosion, and exhaust. Each step must be synchronized with the movement and position of the pistons to coordinate the intake, exhaust, and piston movements. The timing belt acts as a bridge within the engine, transmitting power from the crankshaft to the corresponding components.