Remove the cylinder head (See How to remove a cylinder head ), carefully peeling off the old gasket from the head or block. Make sure no dirt or carbon falls into the engine.
Leather Oil Seals - Leather Seals, also known as Type L Oil Seals, are most common in components that are subject to dirt and poor lubrication. Since they come pre-lubricated and are able to absorb fluids, leather oil seals are able to provide sealing properties in conditions that synthetic rubber is unable to.
Oil seals in any size, material or quantity
ERIKS
Preparation
An oil seal consists of:



Another important factor to consider is the temperature range in which the gasket will be used. Natural rubber gaskets have a broad temperature range, but it is crucial to select a gasket material that can withstand the specific temperature extremes of your application without losing its sealing properties.
Heat resistance
For the housing stop installation technique, set the seal depth flush with the bore’s interior shoulder. This technique ensures that the seal is perfectly aligned with internal housing components. A depth gauge can be crucial here to confirm that the seal is positioned correctly.
With the application cleaned and the components ready, you’ll begin your installation.
