Valve Rotator or Spring Lock Is Free
Use this procedure in order to troubleshoot a problem with the valve rotators or spring locks.
- Valve Components
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| Troubleshooting Test Step | Value | Result |
|---|---|---|
1. Check the Valve Components A. Inspect the following components for damage: - Valve rotators - Spring locks - Valve springs - Valves B. Ensure that the valve has not contacted the piston. If the valve has contacted the piston, check the exhaust system for debris. |
Components |
Result: The valve components are damaged. Repair: Replace the damaged components. NOTE: A valve rotator that is cracked or a valve rotator that is broken is an indication of an engine overspeed. Determine the cause of the engine overspeed. Repair the condition. |
Caterpillar Information System:
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