The timing chain of marginal design in a poorly maintained engine can fail sooner than a well-designed belt, so timeous oil ... doing without a tensioner. In overhead cam engines, the cam ...

timing belt tensioner, idler gears or pulleys, water pump, gaskets, O-rings and seals and other hardware. Whether you or your mechanic replaces the timing belt, it’s always a good idea to ...

Some belt breakages and tensioner failures with expensive consequences gave the timing belt an unfairly evil reputation, as some of the most durable and reliable engines in history are belt-driven ...