The timing chain functions just as that a timing belt does. The difference between your two is simply the material and area. One is constructed of metal and the other, a reinforced rubber. Though timing chains were utilized first, belts were presented 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 oil and can last a considerably long time, while timing belts can be found beyond the engine and have a tendency to dry and crack. Within the last couple of years, however, more vehicle manufacturers have integrated timing chains back into some vehicles with vast improvements like a reduction in noise and vibrations, different a timing belt not all water pumps are driven by the timing chain. Examine your owner’s manual to determine what kind of timing operation your vehicle utilizes as they can vary greatly from year to 12 months and by an auto manufacturer.