The ignition spark plug is essentially a small device that is screwed into the cylinder head of the engine. It consists of a central electrode, an insulator, and a ground electrode. When the engine's piston compresses the air-fuel mixture in the cylinder, the spark plug creates a spark that ignites the mixture, causing combustion to occur.
-80 °C to + 200 °C

318 valve cover gasket. The old gasket must be carefully removed, and the surface of the valve cover and cylinder head cleaned before installing the new gasket. It is important to torque the bolts to the specified requirements to ensure a proper seal and prevent any leaks.
If this is not possible, you may be able to fit the lower retaining bolt into the upper mounting support, to hold the engine level. Or the gearbox may have to be jacked up and supported.
One option is to buy oil seals from specialised gasket and sealing material companies like Polymer Trade Manufacturing Ltd, which is known for its expertise in dealing with gaskets and o rings. These companies not only offer an extensive range of oil seals but also provide expert advice to help customers select the right sealing materials for their specific requirements.