What are timing belts?

Timing belts are thick bands made of rubber that have hard teeth and ridges on their inside surface that help them to key with the cogwheels of the crankshafts and camshafts. They are used to power and facilitate functions in water pumps, oil pumps, and injection pumps, as required by the design of the engine. They are widely used in internal combustion engines to make the valves of the engine open and close in a rhythmic manner in time.

 

What are the uses of timing belts?

Highly efficient timing belts has the following uses and functions:

It plays a significant part in successfully carrying out the combustion process by efficiently controlling the piston and the valves.

It controls the valve operation by connecting the crankshaft and camshaft together.

It takes care of the integrated opening and closing of the valves of the engine.

It eliminates the need for external energy to operate the opening and closing of the valves by using the mechanical energy of the combustion engine.

One of the crucial functions and uses of timing belts is that it restricts the piston from critically striking the valves.

Despite being a single belt or device, it greatly contributes to the operation of multiple components like the upper balance shaft sprocket, lower balance shaft sprocket, camshaft belt drive gear, balance belt drive gear, balance belt tensioner roller, and timing belt tensioner roller.

 

What is the working mechanism of timing belts?

The timing belts harmonise the closing-opening function and timings of the crankshaft, camshaft, and exhaust valve. It helps in the intake of fuel and air entering the combustion engine, along with controlling the exhaust valve to let the smoke or exhaust escape. The belt keeps the engine coordinated and maintains its ability and productivity.

 

When to replace the timing belt?

The occurrence of these symptoms signals the need to change the old and worn-out belt and replace it with a new timing belt:

Reduced engine power

Overheating of the engine

Occurrence of vibrations or shaking in the engine

Difficulty in starting the machine or the vehicle

Rubbing or squealing noises coming from the belt

A ticking sound erupts from the engine

Oil leaking from the engine

Irregularity in the working of the engine light

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