What is the function of a timing chain?

The timing chain's primary function is to connect the crankshaft and camshaft, ensuring that these two critical engine components work in harmony. The crankshaft converts the linear motion from the pistons into rotational motion, while the camshaft controls the opening and closing of the engine's valves. For optimal engine performance, it is essential that these two components operate in sync; otherwise, the timing of valve openings and closings could be off, leading to inefficiencies, power loss, or potential engine damage.

Maintaining proper timing is crucial for ensuring that the air-fuel mixture enters the combustion chamber at the right moment and that exhaust gases exit efficiently after combustion. This synchronization is vital for the engine to run smoothly and is what makes the timing chain foundational to engine performance.