As type B with dust lip
5. Conclusion
ERIKS
Valve cover gaskets are essential components in automotive engines, serving to seal the junction between the valve cover and the cylinder head. These gaskets prevent oil leaks and contaminants from entering the engine, ensuring the proper lubrication and protection of critical components. When seeking valve cover gaskets for sale, it is crucial to prioritize quality and compatibility to maintain the integrity and performance of the engine.
Among the most common causes of oil seal failure are:
Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.
Although it does have a higher tensile strength and longer wear times than other materials, it is recommended to be used in dry-running applications sparingly or intermittently.
Silicone rubber (VMQ)


Oil seal performance is affected by not only the type and material of the selected oil seal, but also a variety of other factors, such as operating conditions, total eccentricity, rotational speed, the substance to be sealed, and lubrication conditions.
Figure 9 shows items relating to oil seal characteristics.