Inspection

1. Inspect sleeve for nicks, burrs or galling and freeze operation in case bore.

2. Inspect valve for damage and free operation in bore of sleeve.

3. Inspect driven gear for damage.

4. Inspect springs for distortion or damage.

5. Check weights for free operations in retainers.

6. Measure valve opening at entry with weights inward. Minimum clearance should be 0.020 inch.

7. Measure valve opening at exhaust with weights inward. Minimum clearance should be 0.020 inch.