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

   Rocker Arm-to-Shaft Clearance
   K20Z2 Engine:
   Standard (New): |
   Intake: | 0.025−0.052 mm (0.0010−0.0020 in.)
   Exhaust: | 0.018−0.056 mm (0.0007−0.0022 in.)
   Service Limit: | 0.08 mm (0.003 in.)
   K24A3 Engine:
   Standard (New): | 0.025−0.052 mm (0.0010−0.0020 in.)
   Service Limit: | 0.08 mm (0.03 in.)

1. Repeat for all rocker arms and both shafts. If the clearance is over the limit, replace the rocker shaft and all overtolerance rocker arms. If any VTEC rocker arm needs replacement, replace rocker arms (primary and secondary, or primary, mid, and secondary) as a set.