rockerarm
A rocker arm is a lever in an internal combustion engine’s valve train that transmits motion from the camshaft to the intake or exhaust valve, converting the cam’s rotation into upward valve movement. It sits on a fulcrum and uses one end to receive motion from a lifter or cam follower (via a pushrod in pushrod/ohv designs) and the opposite end to press on the valve stem to open the valve.
In different engine layouts, rocker arms can operate in various ways. In overhead valve engines, the pushrod
Rocker arms are typically made from steel or aluminum, and may be forged or cast with machined
Maintenance considerations include ensuring proper lubrication, correct mounting torque, and wear inspection of the pivot, contact
Rocker arms are part of the broader valve train, which also includes the camshaft, lifters, pushrods, and