To act as a physical barrier retaining the lubricating oil where it is bound to be.
Improper

ls3 valve cover gasket. OEM gaskets are recommended for LS3 engines to ensure a perfect fit and reliable performance.
Detergents: This additive isn’t like your laundry detergent! It focuses on preventing deposits, rust, and corrosion from forming on the piston ring area, piston under-crown, and other surfaces that tend to overheat.
The care taken during the installation process will pay off by allowing the seal to work quietly and operate efficiently behind the scenes of your application.
The perfect solution to this is to always use an oil seal that fits properly; the right size of the seal should be used. And in other cases, backup devices should be used to avoid the buildup of clearance gaps within the mating edges.
Different Type Rotary Shaft Oil Seal
5. Keep it clean
One of the key advantages of the 40mm rubber gasket is its flexibility and resilience, allowing it to conform to irregular surfaces and maintain a tight seal under varying conditions
. This property makes it an ideal choice for sealing joints, flanges, and connections in industrial equipment and machinery.40mm rubber gasket

Special seal types and their features




Special seal types and their features
Nitrile Butadiene Rubber (NBR, nitrile)
You have to consider the speed at which the shaft will be moving, the housing bore, and the runout. These are important to make sure that you choose an oil seal that will not be exposed to unconducive abrasions.
② Spring code
When you start the actual installation make sure that the oil seal is always facing the right direction. So, not facing outwards, but always with the spring facing the side of the medium to be sealed. The oil seal must then be pressed into the bore. Use appropriate tools, such as a bearing fitting tool set, to ensure that this is done evenly. The oil seal must never be forcefully hammered into the bore.