The timing chain functions just as a timing belt does. The difference between the two is merely the material and area. 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 because of their material, less costly to create. 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 and have a tendency to dry and crack. Within the last few years, however, more automobile manufacturers have built-in timing chains back to some vehicles with huge improvements like a reduction in sound and vibrations, different then a timing belt not all drinking water pumps are driven by the timing chain. Examine your owner’s manual to determine what kind of timing procedure your vehicle utilizes because they can vary greatly from year to season and by an auto manufacturer.