RENR5042-02 51 Troubleshooting Section 6. Check the fuel pressure after the fuel filter while the engine is being cranked. Refer to Testing and Adjusting for the correct pressure values. If the fuel pressure is low, replace the fuel filters. If the fuel pressure is still low, check the following items: fuel transfer pump, fuel transfer pump coupling, and fuel pressure regulating valve. Refer to Systems Operation/Testing and Adjusting for more information. i01405939 Valve Rotator or Spring Lock Is Free SMCS Code: 1109-035 Probable Causes Cracked valve rotator Broken spring locks Broken valve spring(s) Broken valve Recommended Actions 1.
Determine the cause of an engine overspeed that would crack the valve rotator. Repair the condition. 2. Inspect the following components for damage: Valve rotators Spring locks Valve springs Valves Note: Ensure that the valve has not contacted the piston. If the valve has contacted the piston, check the exhaust system for debris. 3. Replace any damaged components.