Timing belt: definition, when to replace, and a lot more!

Timing belts are typically rubber and have strong teeth designed to engage with the cogwheels on crankshafts and camshafts. It is the internal combustion engine element responsible for synchronizing the rotation of the camshaft and the crankshaft, and it is an integral part of the engine. The intake and exhaust strokes of each cylinder enable the correct opening and closing of the valves in the engine.

In an interference engine, the timing belts in the UK also play a significant role in keeping the piston from colliding with the valves, which is an important safety feature. A timing belt is often a toothed belt that might have teeth on either side of the surface. Timing belts are used to keep an engine’s timing accurate.

When to Replace the Timing Belt?

Timing belts should be replaced at the recommended intervals by your vehicle’s manufacturer. Although the interval varies by manufacturer, the air filter is generally recommended to be updated every 60,000–100,000 kilometers. Your car owner’s manual will tell you how often you should service your vehicle based on its model.

When a timing belt is constructed of rubber, it will eventually wear out and break down. When it fails, the engine will either not work at all or not work in sync, further damaging the engine’s components.

Engine failure, cracked or bent valves, cylinder head or camshaft breakage, and piston and cylinder wall corrosion can occur if the timing belt is not replaced at the proper period. Not in situations like this can you think: “If something is not damaged or broken, why fix it?’ To avoid spending tens of thousands of dollars on engine repairs or replacement, follow the manufacturer’s recommended maintenance schedule for replacing the timing belt.

When a timing belt fails, there are frequently no warning indications present beforehand. However, the following are some potential warning signs that it may be time to replace your belt:

  • Reduced power output from the engine
  • Overheating
  • Vibrating or trembling
  • Difficulty getting the vehicle to start.
  • Sounds like squealing or rubbing coming from the belts.
  • A ticking sound can be heard coming from the engine.
  • Leaking oil
  • Warning Light on the Dashboard
  • Tips to Choose the Timing Belt


There are many materials used in timing belts because of their ability to handle varied situations. Different materials used to make timing belts include neoprene, urethane, rubber, fabric, etc.


The application of the timing belt will determine how it performs its role, which will vary depending on the setting. There isn’t a single substance that can fulfill all of an industry’s demands. So, choose a timing belt based on the application.


When it comes to the design of the timing belt, there are certain issues to be asked concerning the required level of precision.

Visit Bolton Engineering Products at https://bepltd.com/pages/belts-pulleys to learn more about the timing belts 

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