Rocker Arm Assembly
- Disassemble rocker arm shaft assembly. Inspect components for excessive wear or damage.
- Measure O.D. of rocker arm shaft in rocker arm operating areas. Measure I.D. of rocker arm. Determine oil clearance. Replace components if not within specification. See ROCKER ARM ASSEMBLY SPECIFICATIONS table.
- Using dial indicator and "V" blocks, check rocker arm shaft runout. Replace shaft if runout exceeds specification. See ROCKER ARM ASSEMBLY SPECIFICATIONS table. To reassemble, coat components with engine oil and reverse disassembly procedure.
ROCKER ARM ASSEMBLY SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Rocker Arm I.D. | .630-.631 (16.00-16.02) | |
| Rocker Arm Shaft O.D. | .628-.629 (15.97-15.99) | |
| Rocker Arm Shaft Oil Clearance | ||
| 8-Valve | .0005-.0017 (.013-.043) | |
| 16-Valve | .0001-.0014 (.003-.036) | |
| Rocker Arm Shaft Runout | ||
| 8-Valve | .004 (.10) | |
| 16-Valve | .008 (.20) | |