Always start by making sure the oil seal is facing the right direction. The oil seal must be positioned with its spring to the side of the medium to be sealed. The oil seal must then be pressed into the bore. It must fit tightly (H8 in the groove is recommended). Use appropriate tools for this, such as an impact socket set, to ensure that the force is applied evenly during pressing. The oil seal must never be hammered into the bore with brute force, but eased in.
There are different types of spark plugs available, including copper, platinum, and iridium. Each type has its own advantages and disadvantages, so it is important to choose the right spark plug for your vehicle based on its specific needs.
ignition spark plug

Proper preparation is crucial for successful oil seal installation. Ensuring that the seal, shaft, and bore are correctly prepared and aligned prevents seal failure, leakage, and premature wear of the components.
Usually, these oil seals are used to seal lubricating oil or grease and contain it within the application, so that moving parts such as bearings are continually supplied with enough lubrication. However, such seals are also used for sealing other liquids, gases, and solids, such as powders or granules.