The timing chain functions just as a timing belt does. The difference between the two is simply the material and location. One is made from metal and the additional, a reinforced rubber. Though timing chains were used first, belts were introduced into automobiles in the 1960s. Belts are quieter and due to their material, less expensive to produce. Timing chains are housed within the timing chain china engine and receive lubrication from engine oil and can last a long time, while timing belts can be found beyond the engine and have a tendency to dry and crack. In the last couple of years, however, more automobile manufacturers have integrated timing chains back to some vehicles with huge improvements like a reduction in sound and vibrations, different a timing belt not absolutely all water pumps are powered by the timing chain. Check your owner’s manual to determine what kind of timing procedure your vehicle utilizes because they may vary from year to calendar year and by a car manufacturer.