What is the function of a timing belt?

[RemingtonDella]

The function of a timing belt is: when the engine is running, the piston stroke, the opening and closing of the valves, and the ignition sequence are kept in synchronous operation under the connection of the timing. The timing belt is an important part of the engine's valve train system, ensuring the accuracy of intake and exhaust timing through its connection with the crankshaft and a certain transmission ratio. The timing belt is a rubber component. As the engine operating time increases, the timing belt and its accessories, such as the timing belt tensioner pulley, timing belt tensioner, and water pump, will wear out or age. Therefore, for any engine equipped with a timing belt, manufacturers have strict requirements to replace the timing belt and its accessories regularly within the specified cycle. The replacement cycle varies depending on the engine structure, but generally, it should be replaced when the vehicle has traveled between 60,000 to 100,000 kilometers. The specific replacement cycle should be based on the vehicle's maintenance manual.