What connects the camshaft and crankshaft to maintain their coordination?

The timing belt is a crucial component in an engine that connects the camshaft and crankshaft, ensuring that they operate in perfect synchronization. As the crankshaft turns, it needs to drive the camshaft at the correct timing to open and close the engine's valves as needed throughout the combustion cycle. This coordination is essential for the engine to function efficiently and prevent potential damage.

The timing belt is specifically designed for this task, as it is made from strong, durable materials that can withstand high temperatures and stress. Additionally, it features teeth that fit into corresponding grooves on the camshaft and crankshaft, which helps maintain precise alignment and timing.

While the timing chain also serves a similar purpose, it operates differently— it is usually made of metal and offers greater longevity but is generally heavier and noisier than the timing belt. Drive belts and injector pumps are not involved in the synchronization of the camshaft and crankshaft; drive belts typically drive accessories like the alternator or water pump, while the injector pump is related to fuel delivery in diesel engines.