What is the function of a timing belt?

The function of a timing belt is to synchronize the rotations of the crankshaft and camshaft. This synchronization is crucial for the proper timing of engine operations, particularly the opening and closing of the engine's valves in relation to the position of the pistons. If the timing belt is worn or fails, the timing can become misaligned, potentially leading to severe engine damage, loss of power, or complete engine failure.

The system relies on the precise coordination of these components to ensure optimal performance, efficiency, and operation of the engine. This is why a timing belt is a critical component in maintaining engine health. Other possibilities presented, such as regulating fuel flow or powering electrical systems, are unrelated to the timing belt's specific role in the engine's mechanical functions.