The component responsible for synchronizing the crankshaft and camshaft within an internal combustion engine is the timing belt. Its primary function is to ensure valves open and close in precise coordination with piston movement. Failure of this belt can disrupt this synchronization, potentially leading to a non-starting condition. For example, if the belt breaks, the camshaft may stop rotating, preventing fuel injection or valve operation at the correct time.
Proper engine function relies heavily on the timing belt’s integrity. A functioning timing belt ensures optimal fuel efficiency, power output, and reduced emissions. Historically, timing chains were the standard; however, belts offer advantages in terms of noise reduction and weight. The evolution to belts represented a significant advancement in engine design and refinement.