What is the function of a car timing belt?

[LaGage]

The function of a car timing belt is to ensure synchronization of the engine's operation, including the piston's movement, the opening and closing of valves, and the ignition sequence, all under the coordination of the timing mechanism. The timing belt is a consumable part, and if it breaks, the camshaft will not operate according to the timing, which can lead to severe damage due to the collision between valves and pistons. Therefore, it is crucial to replace the timing belt according to the mileage or time specified by the manufacturer. Being a rubber component, the timing belt, along with its related parts such as the timing belt tensioner, timing belt tensioner pulley, and water pump, will wear out or degrade over time with engine operation. Hence, manufacturers strictly require periodic replacement of the timing belt and its accessories within the prescribed intervals for engines equipped with timing belts.