The right time to replace timing belts:
Timing belts are considered wear items and should be checked according to the manufacturer’s recommended service schedule. Most manufacturers suggest replacing the belt between 60,000 to 105,000 miles. Check your owner’s manual or ask your Service Technician about the specific schedule for your vehicle. A broken timing belt will stop your car – instantly. It can also result in costly engine damage and inconvenience.
Free Running or Interference Engine?
An engine is either ‘interference” or ” free running” depending on its design. If the timing belt breaks in an interference engine, an open valve may be struck by a moving piston. This can result in serious damage and expensive repairs, and in some cases a new engine.
A “free running” engine design will not result in extensive engine damages should the timing belt fail. The motorist will still have to deal with the inconvenience of being stranded, the expense of towing, and the cost of timing belt replacement.
Tensioners and idlers are critical components that work hand-in-hand with the timing belt.
Tensioners and idlers work together to keep the timing belt properly tensioned. The timing belt system uses idlers and/or pulleys to either change the direction of the belt or transmit power to a component such as a water pump or oil pump.