Saturday 15st May 2021

Motoruning safety - improved hydraulic tappets!

Reading time approx. 4 Minutes

Rocker arm hydraulic tappet Schrick Tuning e1584511841941 Safety during engine tuning improved hydraulic tappets!

Hydraulic lifters transmit the camshaft stroke to the valves and can be found in the engine. The automotive parts are also called hydraulic tappets and are one of the moving parts in a car engine. Hydraulic lifters should be very light and have a certain stability. Series hydraulic tappets are often not suitable for long-term use in tuned engines, which is why light hydraulic tappets should be used for the tuning area. The topic of hydraulic tappets is discussed in more detail below.

Hydraulic lifters for the tuning area

Rocker arm hydraulic tappet Schrick Tuning 2 e1584511982342 Safety during engine tuning improved hydraulic tappets!

Hydraulic tappets are part of the moving mass in the car engine, which is why the vehicle parts should be very light, yet robust and durable. Various hydraulic tappets are available on the market and it is advisable to use hydraulic tappets for a tuned motor that are lighter than the series variants. If you need a new camshaft for tuning your vehicle, you should go the full route and replace the hydraulic tappets in addition to other modifications. For example, there are manufacturers of camshafts that do not guarantee their own component or correct function without new hydraulic tappets.

Hydraulic lifters vs. Tappet

Rocker arm hydraulic tappet Schrick Tuning 4 Safety during engine tuning improved hydraulic tappets!

Hydraulic tappets are used in diesel and gasoline engines. The automotive parts effect an automatic, hydraulic compensation of the valve clearance. From 1930 to about 1990 hydraulic tappets were used in automotive designs. The automotive components have been designed as bucket tappets since 1990 and are also referred to as hydraulic bucket tappets. Hydraulic tappets require more installation space than cup tappets. Hydraulic lifters are heavier than the frequently rigid bucket lifters. Due to their weight, the hydraulic tappets increase the moving masses, which limits the possible maximum speed. It is therefore important to use the smallest possible hydraulic tappets in the tuning area, which do not have an extreme effect on the maximum speed.

What to look for when installing?

If you want to install hydraulic tappets for the tuning area, you must comply with the recommended specifications. And it is important to use the right engine oil with the optimal viscosity, so that the valve control works without malfunction. The intervals for changing the oil should also be strictly observed. If the valve control is faulty, this can lead to a loss of performance. Engine damage can also occur.

What are the advantages of the hydraulic ram?

The engine is easier to service as soon as the valve clearance check is no longer required. In addition, noise emissions are reduced in the valve train through reduced shock excitation. For example, SCHRICK hydraulic tappets are about 30 grams lighter and significantly more stable than the factory-installed variants.

Are there any disadvantages when using it?

If rigid tappets are replaced by hydraulic tappets, this means lower rigidity. The use of hydraulic tappets can influence the acoustic behavior of the engine during a cold start and produce unpleasant noises. Hydraulic tappets lead to higher fuel consumption than rigid variants. Furthermore, the friction due to the permanent contact between the tappet and cam is higher.

Hydraulic lifters - conclusion

The hydraulic tappets should be purchased in very light versions for the tuning area. When buying and installing hydraulic lifters, installation instructions should be followed exactly so that no engine damage occurs. We hope that the info report on the topic / term Tappet (further names / keywords: hydraulic tappet, hydraulic tappet, valve tappet, rocker arm) from the field of autotuning. Our goal is that the largest German-language tuning dictionary (Tuning Wikipedia) and to explain tuning terms from A to Z easily and understandably. Almost every day we expand this lexicon and how far we are, you can HERE see. Soon the next one will be Tuning scene concept be illuminated by us. By the way, you will be informed about new topics if you have ours Feed subscribe to.

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