Rocker Arm And Shaft Inspection (PZEV Models)

Rocker Arm and Shaft Inspection

1. Remove the rocker arm assembly Rocker Arm Assembly Removal (PZEV Models).

2. Disassemble the rocker arm assembly Rocker Arm And Shaft Disassembly/Reassembly (PZEV Models).

3. Measure the diameter of the shaft at the first rocker location.






4. Zero the gauge (A) to the shaft diameter.






5. Measure the inside diameter of the rocker arm, and check it for an out-of-round condition.









6. Repeat for all intake rocker arms and intake shaft. If the clearance is beyond the service limit, replace the rocker shaft and all out of service limit rocker arms. If any VTEC rocker arm needs replacement, replace the intake rocker arms (primary, mid, and secondary), as a set.

7. Repeat for all exhaust rocker arms and exhaust shaft. If the clearance is beyond the service limit, replace the rocker shaft and all out of service limit rocker arms. If any VTEC rocker arm needs replacement, replace the exhaust rocker arms (primary and secondary), as a set.

8. Inspect the rocker arm pistons (A). Push on each piston manually. If it does not move smoothly, replace the rocker arm set.

NOTE: Apply new engine oil to the rocker arm pistons when reassembling.

Intake side





Exhaust side





9. Reassemble the rocker arm assembly Rocker Arm And Shaft Disassembly/Reassembly (PZEV Models).

10. Install the rocker arm assembly Rocker Arm Assembly Installation (PZEV Models).