Timing chains are built for long-term service, but they still operate under constant load inside the engine. Over time, wear at the chain joints can create elongation, changing the relationship between the camshaft and crankshaft and affecting the accuracy of the timing system.

In this Cloyes Tech Byte, Cody Smith breaks down why timing chains wear and what that wear means for the rest of the timing drive. It’s a quick, practical explanation for technicians, engine builders, and vehicle owners who want to better understand why a timing chain can eventually require replacement—even when there isn’t a fixed maintenance interval.

Watch the video for a straightforward look at one of the most important reasons timing-chain systems need service, and use the Cloyes online catalog to confirm the correct components for your specific application.