Rocker Arm, Valve: Installation
CAUTION:
Proper inspection of the rocker arms is required to ensure proper installation. Inspection from the top and also side view is critical to verify the proper seated position of each and every rocker arm. Failure to install the rocker arms correctly may cause severe engine damage.
NOTE:
The LH cylinder head rocker arms are shown, the RH cylinder head rocker arms are similar. If the rocker arms are being reused, reassemble them into their original locations.
- Lubricate the rocker arms with clean engine oil before installation.NOTE:
When placing the rocker arms. The valve stem should fit securely into the rocker arm guides.
- Position the intake rocker arm(s) (1) onto the lifter(s) and valve stem(s).
- Install the exhaust rocker arm(s) (2) and hydraulic lifter(s).
- The exhaust rocker arm(s) (2) are attached to the hydraulic lifter (3) with a retaining clip (1).
- Install the camshaft(s). Refer to CAMSHAFT, ENGINE, INSTALLATION .NOTE:
If any of the rocker arms are not installed properly. Loosen the bearing caps and reposition the rocker arms.
- Verify that the rocker arm (3) is positioned over the lifter (4).
- Verify that the rocker arm roller (2) is seated to the camshaft lobe (1).
- Use a mirror to verify the valve stem (4) is centered between the rocker arm guides (3).
- Verify the camshaft lobe (1) is centered over the rocker arm roller (2).