When Does The Timing Belt Need To Be Replaced

When Does The Timing Belt Need To Be Replaced

A timing belt operates the engine camshaft (or camshafts at a dual-cam engine). It is responsible for synchronizing the functions of these engine and enable air and gas in and out by controlling the opening and closing of many valves of the engine, thus allowing the fuel to ignite in the combustion chamber. During the explosion, the valves are there to pressure the pistons down. It’s called timing belt since its primary job is to precisely time valve opening and closing with up-and-down movement of the pistons. Timing belt replacement is one of the high-price maintenance items that many drivers need to deal with. How often does the timing belt have to be replaced?

To ensure the entire process occur properly, the valves must open and close at the right time. Besides, the valves and the pistons must be in the ideal position. For every cylinder, the valves will open in another time.

When should you change your timing belt?

It is extremely hard to spot an imminent passing of a timing belt; therefore, just remember that the milestone for each timing belt change ought to be approximately 60000 to 100000 miles, which is recommended by most auto brand’s manuals and mechanics too.


What occurs if a timing belt breaks?

There are two kinds of engine: an interference and non-interference. In an interference engine, if a timing belt breaks while driving, there’s a good chance that the engine might be badly damaged and also the interference engines are marked with the star signal. A non-interference engine will stall if the timing belt breaks, but further damage may be limited. The difference is that in an interference engine, valves that are fully open will probably be struck from the piston as it travels to the top ranking. in a non-interference engine, there’s nevertheless some clearance between completely open valves along with a piston in the top place.

As soon as you experience a broken or worn out timing belt, then the following are symptoms that may occur. If you have these symptoms, have a certified auto mechanic or technician inspect the timing belt and then replace it if necessary.

1) Rough Idling of the Engine

There are teeth on the timing belt that hold gears as they’re rotating various engine components and parts. If these teeth start to fall away or become inadequate, the timing belt will begin to slip away in the gears. After this occurs, the teeth will drop right onto the gears and form a jolt from the engine. Worst of all, the engine will start to stall since the camshaft timing is off.

2) Misfire of This Engine

The fire speed of the motor could be jeopardized from the timing belt being worn out. If the timing belt were to slide away in the gears and fall upon the camshaft, among the cylinders will start and close too soon. If this happens, an engine misfire could occur which means the belt needs to be replaced right away. If you do not replace the belt shortly, the engine might be permanently damaged.

3) Smoke from the Engine

If it’s raining or winter time and cold outside, it could be hard to tell if the vast amounts of smoke coming from your tailpipe are out of anything bad or not. But if you see an excessive amount of smoke that looks unusual even for the raining or winter months, then it likely has to do with a timing belt issue. The top of each cylinder has two holes which are responsible for letting the exhaust out and allowing in air. The opening and closing of those holes have been synchronized with the way the cylinders move and the way the camshaft moves. In case you have a worn-out time belt then this can become unsynchronized, which means that the exhaust will be allowed outside and air  will be allowed in at inappropriate times. The result will be lots of smoke coming from your exhaust system.

4) Oil Pressure Decline

The timing belt spins the gears of the camshaft. If the time of the belt is off, it may jump and break off portions of the camshaft. Some of these pieces may fall into the car’s oil pan, leading to the oil pressure to fall in the base of the engine. This will cause the engine to fail altogether. The only way to recover from this is to rebuild the entire motor.

5) Pistons or Valves That Are Broken

The worst symptom you are able to encounter is using the timing belt cut or broken completely. If that is true, the crankshaft will end up turning on its own rather than be in sync with the movement of the camshaft. Once this occurs, the piston will come in contact with the valves as they open. This might end up bending the valves or damaging the piston.


If you would like to prevent your engine from becoming damaged, have a brand new timing belt installed immediately as soon as you experience this symptom. Otherwise, it will cost a lot more to fix the engine.

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