Rocker Arm Assembly: Description and Operation

5. Valve Rocker Assembly
- The intake valve rocker arms and the exhaust valve rocker arms are installed on the respective rocker shafts which are retained by the camshaft caps.
- The valve side of the rocker arm is provided with a valve rocker adjust screw & nut. Turning of this screw can adjust valve clearance.
- The exhaust valve rocker arms have a "Y" letter design, and each arm operates two exhaust valves.
- The rocker shafts have an oil passage in it.