The hydrodynamic ribsa) have a two-stepped rib configuration provided in one direction on the air face of the lip. Even if the first rib is worn out, the second rib comes into contact with the shaft surface, meaning that this type of oil seal ensures higher sealing performance. Seal with Side Lip A large side lip ensures prevention of entry of dust/water.


Spring
Now, thoroughly clean both the valve cover and the cylinder head surface with a suitable solvent to remove all old gasket material and any buildup
Cold rolled carbon steel sheet
(JIS* SPCC)