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- The spark plug valve cover gasket, also known as the valve cover gasket or NVH (noise, vibration, and harshness) gasket, is a critical component in the engine's valve train. It is a rubber or synthetic material washer-like element that seals the gap between the valve cover and the cylinder head.

JTEKT provides special seals for use in a wide variety of machines and applications.
Table 5 lists the major special seals, their shapes, and their features.


VMQ (silicone)
Name
The valve cover gasket and spark plugs are integral components in the engine's ignition system. The valve cover gasket seals the valve cover to prevent oil leaks, while the spark plugs play a crucial role in igniting the air-fuel mixture within the combustion chambers. Proper sealing provided by the valve cover gasket is essential for maintaining the integrity of the engine, while reliable spark plugs contribute to efficient ignition and combustion, ensuring optimal engine performance.
F
• SIM method to prevent the spring from falling off (integral molding of spring and rubber)
It is important to regularly inspect and replace worn-out piston oil seals to ensure the proper functioning of the engine. This can help to prevent costly repairs and extend the life of the engine.
1 .Material: There are 7 types of material used for oil seals, they are.
Table 2 a): Common types of oil seals (with spring)
The valve cover gasket plays a critical role in maintaining the integrity of the engine by preventing oil leaks and maintaining proper lubrication. It ensures that the engine remains free from oil leaks, contributing to its overall efficiency and reliability. A high-quality valve cover gasket is essential for preserving the proper functioning of the engine and protecting it from potential damage due to oil leakage.
