The timing chain china timing chain functions in the same way that a timing belt does. The difference between your two is merely the material and location. One is made from metal and the various other, a reinforced rubber. Though timing chains were used first, belts were released into vehicles in the 1960s. Belts are quieter and due to their material, less expensive to create. Timing chains are housed within the engine and receive lubrication from engine oil and can last a long time, while timing belts are located beyond the engine and tend to dry and crack. Within the last couple of years, however, more automobile manufacturers have built-in timing chains back to some vehicles with vast improvements such as a reduction in sound and vibrations, different a timing belt not absolutely all water pumps are driven by the timing chain. Verify your owner’s manual to know what kind of timing operation your vehicle utilizes as they can vary greatly from year to year and by a car manufacturer.