What is car rocker arms?

Car rocker arms are important components of the engine's valvetrain system. They are located between the camshaft and the pushrods and act as a lever to transfer the motion of the camshaft to the valves.

There are two types of rocker arms: stamped and forged. Stamped rocker arms are made from a sheet of metal and are lighter and less expensive than forged rocker arms, which are made from a solid piece of metal and are stronger.

Rocker arms are designed to match the profile of the camshaft lobe to open and close the valves at the right time. They play a crucial role in determining the engine's valve timing, lift, and duration, which directly affects its performance, power output, and fuel efficiency.

Rocker arms are prone to wear and tear over time due to the constant friction and stress they endure. When they wear out, they may produce noise, cause poor engine performance, or even lead to engine failure if not replaced in time. Therefore, regular maintenance and inspection of the rocker arms are essential for the proper functioning of the engine.