Rocker Arm-to-Rocker Arm Shaft Clearance Inspection

^ Tool(s) Required
- J 26900-5 Vernier Caliper
- J 26900-2 Outside Micrometer





1. Using an outside micrometer, measure the diameter of the rocker arm shaft.
Standard Rocker Arm Shaft Diameter: 15.969-15.984 mm (0.6287-0.6293 inch)
2. Using a Vernier caliper, measure the inside diameter of the rocker arm.
Standard Rocker Arm Inside Diameter: 15.985-16.005 mm (0.629-0.630 inch)
3. Subtract the rocker arm inside diameter from the rocker arm shaft outside diameter and this will determine the rocker arm-to-rocker arm shaft clearance.
Standard Rocker Arm-to-Rocker Arm Shaft Clearance: 0.001-0.036 mm (0.0001-0.0014 inch)
4. If the measured clearance exceeds the specifications, replace the rocker arm components as necessary.