3min

Clattering hydraulic tappets: causes, consequences and a solution

#Areas of use

#Car

#Everyday helpers

Clattering hydraulic tappets can cause problems in the engine. If the problem is not taken care of, it can have far-reaching consequences. Our hydraulic tappet additive can help.

Hydraulic tappets are important components in the engine that ensure that the valve clearance is automatically compensated. But what happens if these important parts are defective and what causes hydraulic tappets to clattering anyway?

Causes of clattering hydraulic tappets

Clattering hydraulic tappets can have various causes:

Wear: over time, hydraulic tappets wear out, especially with high vehicle mileage.
Lack of oil: low oil level or low grade oil can affect the lubrication of the hydraulic tappets.
Dirt and deposits: contamination in the engine oil can clog the fine channels of the hydraulic tappets.
Air in the hydraulic system: air bubbles in the oil circuit can impair the function of the hydraulic tappets and lead to clattering.

How can you recognize defective hydraulic tappets?

Defective hydraulic tappets are usually noticeable by a characteristic clattering or ticking noise in the engine. This noise can be heard particularly clearly when starting the cold engine and may increase over a longer period of driving. Another sign: the engine runs more unevenly and loses power.

Consequences of defective hydraulic tappets

Ignoring the signs of defective hydraulic tappets can result in consequential damage. Possible consequences include:

Increased wear of other engine components: insufficiently lubricated parts wear out more quickly.
Engine damage: in the long term, serious damage to the engine can occur, resulting in expensive repairs.

A possible solution: hydraulic tappet additive

Our hydraulic tappet additive offers a quick, easy and effective solution to clattering hydraulic tappets. It cleans the fine oil channels, removes deposits and improves lubrication of the hydraulic tappets. This reduces the typical clattering and extends the service life of the hydraulic tappets.

Tappet Stop Noise

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Application and properties of the Liqui Moly Hydraulic Tappet Additive

dampens hydraulic tappet noise
tested for use with turbochargers and catalytic converters
cleans valve bores
improves the lubricating properties of the oil

It is extremely simple: The additive can be added at any time. The can capacity of 300 milliliters is sufficient for up to six liters of engine oil. Warm up the engine after adding the hydraulic tappet additive. To ensure long-term effectiveness, it is advisable to reapply the product after every oil change.

You should experience a noticeable improvement after a short time: the clattering is reduced and the engine runs more smoothly. If the clattering continues, this probably indicates mechanical damage such as high wear. In this case, a visit to the garage is unavoidable. Our LIQUI MOLY service garages will be happy to help you.

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Clattering hydraulic tappets are not only an acoustic annoyance, but can also indicate serious problems. However, with our hydraulic tappet additive you can remedy the situation quickly and easily. It ensures optimal lubrication and extends the service life of your hydraulic tappets and the entire engine.