Rocker Cover

A rocker cover, also known as a valve cover, is a component used in internal combustion engines to enclose and protect the top part of the engine’s cylinder head and valvetrain. It is typically made of metal or plastic and is bolted onto the cylinder head.

The main function of a rocker cover is to seal the top of the engine and prevent oil leaks. It houses the rocker arms, pushrods, and valves, providing a protective cover to keep them clean and shielded from contaminants.

Rocker covers are often designed with an integrated oil filler cap and/or breather system, allowing for the replenishment of engine oil and the release of built-up pressure and gases. These features contribute to the overall functionality and performance of the engine.

Rocker covers can come in various styles and designs, depending on the specific engine configuration and manufacturer. They may be plain and functional in appearance or feature branding, logos, or other aesthetic elements.

Maintenance and servicing of the engine often involve removing the rocker cover to access the valvetrain components for inspection, adjustment, or repair. Proper torque and sealing of the rocker cover bolts are important to ensure a secure fit and prevent oil leaks.

In summary, a rocker cover is a protective component that covers the top part of the engine’s cylinder head and valvetrain. It provides a sealed enclosure, preventing oil leaks and protecting the internal valvetrain components. Rocker covers play a vital role in maintaining the performance, reliability, and cleanliness of the engine.