Measure the rocker arm I.D. (Item 1) [Figure 70-100-22] with the inside micrometer.
Measure the rocker arm shaft O.D. (Item 2) [Figure 70-100-22] with a outside micrometer.
If the clearance still exceeds the allowable limit, replace the bushing.
If the clearance still exceeds the allowable limit after the bushing is replaced, replace the rocker arm shaft.
