Engine Poppet Valve Rocker Arm Assembly

The engine poppet valve rocker arm assembly is a component of an internal combustion engine. It is responsible for actuating the intake and exhaust valves in the engine's cylinder head.

The assembly consists of several rocker arms, which are typically made of metal and are mounted on a rocker shaft. Each rocker arm is connected to a valve stem on one end and a camshaft lobe on the other end.

When the camshaft rotates, the lobes push against the rocker arms, causing them to pivot. This motion is then transferred to the valve stems, opening and closing the intake and exhaust valves at the appropriate times in the engine's combustion cycle.

The rocker arm assembly plays a crucial role in controlling the flow of air and fuel into the engine and the expulsion of exhaust gases. It must be properly lubricated and adjusted to ensure smooth and efficient operation of the engine.