Chapter 10

Timing Belts

The timing belt is a component that synchronizes your engine's crankshaft to the cam shaft which controls the timing of the opening and closing of your engine's valves. Without the timing belt your engine will not run at all. Note that some engines have timing-chains and others have what is referred to as gear-driven timing, which means there is no belt or chain. Timing-chain or gear-driven timing systems sometimes need servicing, but it is a timing belt that is sure to require replacement.

Timing belts will definitely wear out the question is when. Check your vehicle's owner's manual to see at what mileage the manufacturer suggests changing the timing belt and stick to their schedule. If your timing belt breaks while you are driving, the engine will stop working. That's actually the good news, because the bad news is that on certain makes and models when a timing belt breaks internal engine damage can occur. The bottom line is, check when the manufacturer suggests changing the timing belt and just get it done on time.