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THE DIFFERENCE BETWEEN MECHANICAL SEAL AND OIL SEAL
Where loads are light, the outer skin layer can be made of silicone. It can be made of Fluroelastomer (orViton) to protect under high temperatures (more than 120 degrees Celcius). The skin can also be made of Poly Acrylate or Polytetra-FluroEthylene.
If you follow the above instructions, the oil seals should work properly. Also watch the video below for an example of the installation process.

Standard Sealing Case Designs
Spark plugs and wires are essential components in the ignition system of internal combustion engines. Spark plugs play a critical role in igniting the air-fuel mixture within the engine cylinders, initiating the combustion process that powers the vehicle. High-quality spark plugs and wires are crucial for ensuring efficient fuel combustion, optimal engine performance, and reduced emissions. As a result, the quality and reliability of spark plugs and wires directly impact the overall efficiency and environmental impact of the vehicle.