Valve Rocker Arm Cleaning and Inspection. Chevrolet Joy 2008

For 1990-2009 cars

1. Measure the bending of the rocker arm shaft by using the V block and dial gage.
2. Replace the rocker arm shaft of which bending is over the limit.

Specification
The bending limit is 0.10 mm (0.0039 in).

### Clearance between the Rocker Arm and the Rocker Arm Shaft

1. Measure the outer diameter of the rocker arm shaft using a micrometer (1).
2. Measure the inner diameter of the rocker arm using a bore gage (2).
3. Replace the shaft or rocker arm, or both of them if necessary, if the difference is over the limit between the outer diameter and the inner diameter.

Specifications

• | The clearance between the rocker arm and the rocker arm shaft standard is 0.005-0.040 mm (0.0002-0.0016 in).

• | The clearance between the rocker arm and the rocker arm shaft limit is 0.06 mm (0.0024 in).