What is the difference between timing belts and timing chains?
Timing belts are rubber-toothed belts that drive the cam shaft on overhead camshaft engines (most common type manufactured today). They need to be replaced as a maintenance item (refer to owner’s manual for mileage details). Timing chains can be found on both overhead cam engines and non-overhead cam engines; they are not a maintenance item and may go 200,000 miles or more before needing to be replaced.
