If you follow the above instructions, the oil seals should work properly. Also watch the video below for an example of the installation process.
3. Fluid types: Oil seals interact with oils, fuels, grease, water, and more. Choosing a seal material that is most compatible with your chosen medium can help to increase the durability of the seal and its internal components.
Set the gasket on the block and make sure that all holes are perfectly aligned before refitting the head (See How to remove a cylinder head ).
The material composition of an oil seal is also essential. Typically, Oil Seal 20x35x7 is made from a combination of rubber (such as NBR, HNBR, or FKM) for flexibility and resilience, and a metal insert for strength and durability. The rubber compound allows the seal to adapt to different temperatures and chemical environments, while the metal reinforcement provides resistance against pressure and wear.