The timing chain functions just as a timing belt does. The difference between the two is simply the material and location. One is constructed of metal and the additional, a reinforced rubber. Though timing chains were utilized first, belts were released into timing chain china vehicles 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 oil and can last a long time, while timing belts can be found outside of the engine and tend to dry and crack. In the last few years, however, more vehicle manufacturers have integrated timing chains back to some vehicles with vast improvements like a reduction in sound and vibrations, different a timing belt not all drinking water pumps are driven by the timing chain. Check your owner’s manual to know what kind of timing operation your vehicle utilizes as they may vary from year to year and by a car manufacturer.