The timing chain functions in the same way a timing belt does. The difference between your two is simply the material and location. One is made from metal and the other, a reinforced rubber. Though timing chains were used first, belts were released into automobiles in the 1960s. Belts are quieter and because of their material, less expensive to produce. Timing chains are housed within the engine and receive lubrication from engine essential oil and can last a considerably long time, while timing belts can be found beyond the engine and tend to dry out and crack. Within the last few years, however, more vehicle manufacturers have included timing chains back into some vehicles with vast improvements such as a reduction in sound and vibrations, different a timing belt not all water pumps are powered by the timing chain. Verify your owner’s timing chain china manual to know what kind of timing procedure your vehicle utilizes as 
they can vary greatly from year to calendar year and by a car manufacturer.
