The timing chain tensioner is a high precision element designed, as its name suggests, to optimize chain tension quickly and efficiently.

In today’s article, we will learn about its main function and the importance of this key element in the timing chain system


What does the timing chain tensioner do?


We find two types of chain tensioner: hydraulic tensioner and mechanical chain tensioner.

The tensioner ensures the correct and necessary tension of the timing chain that surrounds the crankshaft sprocket and the camshaft sprocket. It exerts full control, making the chain run smoothly, preventing it from rattling and coming off the sprockets. In addition, it protects other elements such as alternators or water pumps against failure.

On vehicles equipped with a timing chain, we can find the tensioner in the cylinder block. When the chain is driven, the tensioner provides the necessary tension and can absorb shock and vibration of the chain, which means that it also improves its resistance to wear. Therefore, it is a vital component in the timing chain system.


What signals timing chain tensioner damage?


Is a fact that chains will stretch due to use and over time. Wear and tear cause increase of vibration and besides causes wear on other components such as the chain tensioner.

There are some signals that can warn of a tensioner malfunction and, as such and as further explained below, will advise the user of the presence of a failing timing chain system so that they can take appropriate action.

  • Rattling noise from vehicle engine.
  • Loss of engine power.
  • Problems when starting.

As we can see, if timing is not synchronized as it should, this will cause a series of problems related to the engine, even becoming catastrophic.

Normally, any abnormality related to the chain drive can be detected by a rattling noise. Chain tensioners that have suffered a lot of wear can be heard in some cases because the chain makes this sound.



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How to prevent chain tensioner damage and avoid costly repairs


As we all know, it’s easier to stop something happening in the first place than to repair the damage after it has happened. For that, at Dolz we always recommend acting preventively to avoid possible damage caused by any breakdown.

Preventive maintenance will save you from potential serious engine damage as well as costly repairs.

It is important to be attentive to the symptoms of wear and tear that we have discussed previously. If any of these signs happen, check with your trusted dealer as soon as possible.

When replacing a component of your vehicle’s engine, at Dolz we always recommend a practice that will optimize the system life: replace all the associated parts with that component. By doing this, the condition of the timing components is consistent so the overall performance will be optimized.



Keep reading: Top 8 reasons to choose Dolz vehicle replacements



Discover our new range of Timing Chain Kits


Dolz timing chain kits correspond to the top-selling PN numbers on the market, which are available in the electronic catalog TecDoc (TecAlliance).

These are Full-Kits with all necessary for a professional replacement: timing chain, chain tensioner, guides, cam and crack sprockets, gasket, oil seal, VVT, bolts…

timing chain tensioner

Therefore, as an key component in the distribution system, all our kits include tensioners. These can be with a simple pusher, which require the tilting guide, or they can have the guide itself already incorporated into the piston plunger.

For further information contact us.

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