The timing chain functions in the same way a timing belt does. The difference between the two is merely the material and location. One is constructed of metal and the other, a reinforced rubber. Though timing chains were utilized first, belts were presented into vehicles in the 1960s. Belts are quieter and because of their material, less costly 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 beyond the engine 181.1 1and tend to dry out and crack. In the last couple of years, however, more automobile manufacturers have integrated timing chains back to some vehicles with vast improvements like a reduction in noise and vibrations, different then a timing belt not absolutely all drinking water pumps are powered by the timing chain. Examine your owner’s manual to determine what kind of timing operation your vehicle utilizes as they may vary from year to year and by a car manufacturer.