The timing chain china timing chain functions in the same way that a timing belt does. The difference between the two is simply the material and location. One is made from metal and the various other, a reinforced rubber. Though timing chains were utilized first, belts were launched into automobiles in the 1960s. Belts are quieter and due to their material, less expensive to produce. Timing chains are housed within the engine and receive lubrication from engine oil and can last a long time, while timing belts are located outside of the engine and have a tendency to dry out and crack. Within the last couple of years, however, more vehicle manufacturers have integrated timing chains back into some vehicles with vast improvements such as a reduction in noise and vibrations, different then a timing belt not absolutely all drinking water pumps are driven by the timing chain. Examine your owner’s manual to know what kind of timing operation your vehicle utilizes because they may vary from year to calendar year and by a car manufacturer.