What Is A Timing Belt

The timing belt, cambelt or timing chain is an engine component that contributes to the rotation of the engines crankshaft, allowing the internal valves to open and close during the intakes of exhaust strokes.

The timing belt is designed with teeth that allow it to grip the crankshaft correctly and is considered as a rolling chain for the power transmission.

Timing belt or chains are found in most modern vehicles. Very rarely will you find a car without one. However, timing belts are the most common despite the timing chains being considered more durable.

What Does a Timing Belt Do?

In order for a modern vehicles engine to perform correctly, the crankshaft needs to be correctly fitted with a reliable timing belt or chain.

The timing belt helps to synchronize the revolutions, allowing the engines valves to open and close once on every other revolution.

Each vehicle has a specific timing belt and crankshaft fitted – making it difficult for mechanics and cambelt replacement specialists to identify cheap parts on their customer’s behalf.

Unfortunately, you cannot simply fit any timing belt to any old vehicle.

It’s important to have the correct parts available and fitted by an experienced car mechanic. The best way to identify a reliable professional is to contact local car repair garages in your area or use online comparison sites.

How Do You Fit a Timing Belt?

If you have recently had a timing belt replaced – make sure that it is operating correctly before you start using your vehicle on a regular basis.

If the belt has not been installed correctly, it can lead to unsynchronized piston movements which in turn will lead to further repairs and collisions between valves when they open and close.

It’s important that you don’t try to replace your cambelt yourself. Although it may seem an easier enough task, removing a belt and replacing it – it really isn’t.

When You Should Replace Your Timing Belt

A timing belt replacement isn’t something that you have to worry about that often, however, it is something that you need to keep an eye on and have repaired as soon as you notice any signs of a fault.

Most MOT testing stations in Milton Keynes will be able to inspect and replace a timing belt on your behalf.

In most cases a timing belt will be replaced every 30,000 miles. Modern car manufacturers recommend that you have the belt replaced between every 30,000 – 50,000 miles.

Failing to replace the belt when it is needed can lead to serious engine failure, which in turn will lead to expensive repairs. In some cases it has proven to be cheaper to purchase a new vehicle altogether.

Most cars need to have their timing belt replaced because:

  • The incorrect timing belt has been fitted
  • Incorrectly synchronized parts
  • Stripped teeth on the inside of the belt
  • Unravelled cores


We cannot stress enough, the importance of having your timing belt changed when the time comes.

Avoiding the repair will only contribute to more repairs in the future and may even damage your vehicle to such a level that a complete replacement car is the only affordable solution.

The engine is a vital component for any vehicle – avoiding repairing or maintaining will only end badly.

The timing belt can sometimes be called a timing chain or cambelt. It’s primary role is to ensure that the camshaft rotates correctly, opening and closing valves in a synchronized manner. In some cases, specific vehicles such as German manufactured cars will require a certain accredited technician to complete the work. You can find a BMW service Milton Keynes here.

Previous Post What is an MOT Test? – Everything to Know About an MOT
Next Post 5 Basic Car Parts You Really Should Know and Understand