The block is unlikely to distort except after severe overheating, but check anyway using a steel ruler or similar high-quality straight-edge.
An oil seal's primary function is to keep lubricant inside a piece of equipment while preventing contaminants from entering. This may sound simple, yet the consequences of failure are profound, ranging from reduced efficiency to catastrophic machinery breakdown. Herein lies the significance of the NBR oil seal, which withstands extreme temperatures and chemical exposure, maintaining its integrity where other materials might falter.
Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.
The cover is fixed by nuts or bolts on top, or by screws round the edge. Loosen them all and remove them with their washers. If there are several oil-sealing washers under each fixing, note their order.
The spark plug is essentially a device that generates an electric spark to ignite the compressed air-fuel mixture inside the engine cylinder. This ignition process creates a small explosion, which pushes the piston down and ultimately drives the vehicle forward. Without spark plugs, the engine would not be able to start or run efficiently.