Prelude Type-SH L4-2157cc 2.2L DOHC H22A4 (VTEC) 16V (1998)
3. Measure the inside diameter of each rocker arm, and check for an out-of round condition.
Rocker Arm to Shaft Clearance
Intake and Exhaust
Standard (New): 0.025 - 0.052 mm (0.0010 - 0.0020 inch)
Service Limit: 0.08 mm (0.003 inch)
4. Repeat for all rockers. If over limit, replace the rocker shaft and all over tolerance rocker arms.
NOTE: If any rocker arm needs replacement, replace all three rocker arms in that set (primary, mid, and secondary).
Manual Inspection
NOTE: When reassembling the primary rocker arm, carefully apply air pressure to the oil passage of the rocker arm.
Inspect the rocker arm piston. Push it manually.
If it does not move smoothly, replace the rocker arm assembly.
NOTE:
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Apply oil to the pistons when reassembling.
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Bundle the rocker arms with a rubber band to prevent them from separating.