- Variable Diameter Pulleys This system utilizes pulleys that can change their diameter dynamically, thereby modifying the speed ratio as required by the load conditions.
- In the intricate world of automotive engines, every component plays a crucial role in ensuring smooth and efficient performance. Among these components, the valve cover gasket, often overlooked, is a vital part that safeguards against leaks and maintains the engine's integrity. This article delves into the importance of the valve cover gasket and its impact on the overall health of an engine.
- 2. Chemical resistance High temperature rubber gaskets are resistant to a wide range of chemicals, ensuring long-lasting performance in various applications.
Although it does have a higher tensile strength and longer wear times than other materials, it is recommended to be used in dry-running applications sparingly or intermittently.
Sealing process
1. Oil seals have three basic components: sealing element, metal case, and spring.


Figure 2: Necessity of spring
Another factor you need to consider is the type of lubricants that are more suitable for the seals. Check for the appropriate viscosity of the lubricant that’s compatible with the seal material.
Due to having a higher density, Viton has the widest temperature range of -40°F to over 400°F (-40°C to over 240°C) making it a perfect choice for higher temperature applications. Viton® also has the largest range of chemical resistance, i.e., it is resistant to silicone oil and grease, mineral/vegetable oil and grease, aliphatic, aromatic, and chlorinated hydrocarbons, non-flammable hydraulic fuels as well methanol fuels, and more.

Remove the distributor cap . Before removing the distributor (See Removing and refitting the distributor ), mark the position of the rotor arm so that you can refit it just as it was.
0.4 to 1.6 μmRa,
1.6 to 6.3 μmRz
2. For rubber O.D. wall type:
1.6 to 3.2 μmRa,
6.3 to 12.5 μmRz
(Firmly affixes the oil seal and prevents leakage through the seal O.D.)
