Warning: Refer to Cleaning Solvent Warning in the Preface section.
- Clean the valve rocker arms and push rods in cleaning solvent.
Warning: Refer to Safety Glasses Warning in the Preface section.
- Dry the valve rocker arms and push rods with compressed air.
- Inspect the valve rocker arms for the following conditions:
| • | Excessive wear at the valve contact or push rod socket area (1) |
| • | A loose or damaged pin (2) |
| • | A worn or damaged roller bearing (3)--The roller should rotate freely with no binding or roughness. |
| • | The bolt threads for damage |
Note: Keep the push rods in order. The intake and exhaust are different lengths.
- Inspect the push rods for the following conditions:
| • | Straightness using a straight edge (1) |
| • | Excessive wear on the push rod ends (3) |
| • | Clogging of the oil passage (2) |
