
steering oil seal.
Necessary to check compatibility with fluids
(See *2)

Material Code ISO 1629
Oil seals with outer metal cases may include finishes or treatments applied to the outer edge to aid in rust protection, identification, and sealing of scratches or imperfections in the housing bore. Common finishes applied to the outside edge of metal O.D. oil seals include plain (a bonding agent of usually a yellowish-green color), a color-painted edge, and a grinded-polished edge.
Regular inspection and maintenance of valve cover gaskets, head gaskets, and spark plugs are essential to identify signs of wear, damage, or deterioration. Proper replacement of worn or damaged components is crucial for maintaining the efficiency and reliability of the engine. Adhering to recommended service intervals and using high-quality replacement components are essential for optimizing the performance and longevity of the engine's critical components.
However, the new variant also comes with less good properties. Namely less flexibility and less resistance during assembly. Most damages therefore occur during the installation of PTFE oil seals.
When there is a need for rebuilding a cylinder and pump instead of building a new one.