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Next, apply a small amount of grease to the seal lip(s) and the area of the shaft in contact with the seal.  When using a double-lip seal, fill the small cavity between the two lips with grease as well. This both protects the lips during initial installation and break-in, and also acts as another barrier keeping contaminants out. When installing rubber-coated seals, apply lubricant to the outside diameter as well. This will help prevent the seal from rebounding or backing out from its mounting place.

These are comparable to type R and RST, except the outer case does not have a metal reinforcement ring. To compensate, the outside is not made of normal rubber, but a hard, heavy-duty rubber fabric. The advantage is that these types can be made in a split version. They are almost always produced to order, and made of NBR or FKM.

Automotive rubber gaskets are widely used in various vehicle systems for their flexibility, resilience, and sealing properties. These gaskets are employed in applications such as engines, transmissions, and exhaust systems, providing reliable sealing solutions to prevent fluid or gas leakage. The versatility and durability of automotive rubber gaskets make them essential components in maintaining the integrity and efficiency of vehicle systems.

On engines that rotate anti clockwise (viewed from the front) the pulley bolt unscrews clockwise.