Rocker Arm and Shaft Disassembly, Reassembly, and Inspection
1. Rocker Arm Assembly - Disassemble

NOTE:
Identify parts as they are removed so they can be reinstalled in its original locations.
Inspect the rocker arm shaft and rocker arms.
If reused, the rocker arms must be installed in their original location.
When removing, or installing the rocker arm assembly, do not remove the camshaft holder bolts. The bolts will keep the holders and the rocker arms on the shaft.
Bundle the intake rocker arms with rubber bands to keep them together as a set, and remove the bands after the intake rocker arms have been installed.
Prior to reassembling, clean all the parts in solvent, dry them, and apply new engine oil to all contact points and the lost motion assembly.
When replacing the intake rocker arm assembly, remove the fastening hardware from the new intake rocker arm assembly.
When reassembling the rocker arm assembly, loosely tighten the rocker shaft bolts.

2. All Disassembled Parts - Reassembly

1.
Reassemble the parts in the reverse order of disassembly.

NOTE:
When reassembling the rocker arm assembly, loosely tighten the rocker shaft bolts.
If reused, the rocker arms must be installed in the their original locations.
Bundle the intake rocker arms with rubber bands to keep them together as a set, and remove the bands after the intake rocker arms have been installed.
Prior to reassembling, clean all the parts in solvent, dry them, and apply new engine oil to all contact points and the lost motion assembly.
When replacing the intake rocker arm assembly, remove the fastening hardware from the new intake rocker arm assembly.

1. Rocker Arm and Shaft - Inspect

1.
Measure the diameter of the shaft at the first rocker location.





2.
Zero the gauge (A) to the shaft diameter.






3.
Measure the inside diameter of the rocker arm, and check it for an out-of-round condition.

Rocker Arm-to-Shaft Clearance
Standard (New):
Intake:
0.018?0.059 mm (0.00071?0.00232 in)
Exhaust:
0.018?0.056 mm (0.00071?0.00220 in)
Service Limit:
0.080 mm (0.00315 in)

4.
Repeat for all rocker arms and both shafts. 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 rocker arms (primary, mid, and secondary), as a set.

2. VTEC Rocker Arm - Inspect

1.
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.