Remove all traces of the old gasket from the pump and engine, using a paint scraper if necessary.


The first step in installing oil seals is to clean the surface where they will be placed. Dirt, debris, and other contaminants can cause the oil seal to become damaged or misshapen, leading to leaks. Clean the surface with a solvent or soap and water, and make sure it is completely dry before installing the oil seal.
Range of Wilmink Engine Parts
Place the ruler or straight-edge on edge diagonally across the head and block and look for gaps showing light anywhere between the ruler and block.
Because the inner diameter of the oil seal must be stretched during assembly, it is necessary for the shaft to possess a ramped edge. The angle at which the ramped taper should be chamfered is 30° a 50°. If a flange or keyway is present on the shaft, it is best to use a bushing. The bore should also have a chamfer of 30° over at least 1 mm on the ramped side. Be sure to round off the edges properly in the process.
Generally, oil seals vary in materials and types based on the corresponding application. Common materials include:


What are Oil Seals and the different types?
One of the key advantages of the 30-50-10 oil seal is its ability to provide a tight seal without compromising on flexibility. This means that the oil seal can effectively prevent oil leaks while allowing for smooth movement of the machinery or equipment it is installed in.
oil seal 30 50 10

Unscrew the pulley bolt anticlockwise with a socket and bar. Start it turning with a sharp blow on the bar.
Rotary Wheel Of Auto Parts
Fluoro rubber (FKM)
What Are Oil Seals?
Proper installation and maintenance of oil seals are essential to ensure optimal performance and longevity. Before installing a new oil seal, it is important to clean and inspect the shaft and seal housing for any damage or debris that could affect the sealing performance. Additionally, applying a thin layer of lubricant to the seal lip can help improve sealing efficiency and reduce friction during operation.