- The valve cover gasket, often referred to as a valve stem seal or head gasket, is a critical component in an internal combustion engine. It plays a vital role in maintaining the integrity of the engine's lubrication system and preventing oil leaks. Without a properly functioning valve cover gasket, the engine can suffer from severe damage, leading to reduced performance and costly repairs.
- Shaft
• Fluorine rubber

Mercedes-Benz


Fluid side face The front-end face of the seal is called the nose. The nose is made of rubber and forms a gasket seal when compressed on the housing shoulder.
Box: If a BX appears at the end of the part number, that oil seal will be in a box.
Unscrew the pulley bolt anticlockwise with a socket and bar. Start it turning with a sharp blow on the bar.

Oil seals are used in many areas around the car.
Figure 6 shows the places where each seal type is used.
In conclusion, right valve cover gaskets, intake valve cover gaskets, head gaskets, and valve cover gaskets are essential components in automotive engines, contributing to the efficiency, performance, and reliability of the engine. Understanding the significance of these components and their proper maintenance and replacement is crucial for optimizing the performance and longevity of the engine.
When the engine is running, the ignition coil receives a signal from the engine control unit to fire at the correct time. The coil then rapidly builds up a magnetic field within the primary winding when the signal is received, and when the signal is cut off, the magnetic field collapses rapidly, inducing a high voltage in the secondary winding. This high voltage is then sent to the spark plug, where it jumps the electrode gap, igniting the air-fuel mixture in the combustion chamber.
The temperature range of nitrile is −35° to 120 °C (−30° to 250 °F). Due to this wide range, NBR seals can be used for gas oil, silicone oil, animal/vegetable oils and fat, hydraulic liquid as well as hot and cold water. In addition, NBR is oil resistant and has an excellent abrasion resistance, so for any application that demands shock absorbers, NBR is a perfect choice to go with.
Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.

With spring Rubber O.D. wall Metal O.D. wall

