LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson
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LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson

LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson

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Lombardini Engine Troubleshooting LTC Repair 5.13 General Engine Troubleshooting Possible Cause Symptom Engine will not crank Engine does not start Engine starts, but stops 68 Poor acceleration Unsteady rpm Low fuel level Fuel supply/return lines clogged Clogged fuel tank vent Fuel pump faulty Fuel contaminated with air Unit injector(s) faulty/worn Unit injector settings incorrect Injection pump rack sticking Oil level too high Improper oil viscosity Oil diluted by fuel Oil pressure relief valve faulty Oil pick-up tube clogged Oil pump air contaminated at pick-up tube Black smoke Glow plugs faulty Glow plug controller faulty Glow plug relay inoperable Starter defective White smoke Blue smoke Low oil pressure Oil level rising Excessive oil consumption Wet exhaust Overheating Engine knocks

LTC Repair Lombardini Engine Troubleshooting Possible Cause Symptom Battery voltage too low Battery/battery cable connections corroded Key switch defective Air filter clogged Excessive idle/light load operation 69 Incomplete engine run-in Engine overloaded Excessive secondary load Valve lash insufficient/ excessive Injection timing out of spec - advanced Injection timing out of spec - retarded Governor linkage adjustment incorrect Governor spring fatigued or defective Engine will not crank Engine does not start Idle rpm too low Piston rings worn or stuck Piston worn or damaged Cylinders worn or damaged Valve/valve guides worn Engine starts, but stops Poor acceleration Unsteady rpm Black smoke White smoke Blue smoke Low oil pressure Oil level rising Excessive oil consumption Wet exhaust Overheating Engine knocks

<strong>LTC</strong> <strong>Repair</strong> <strong>Lombardini</strong> <strong>Engine</strong> <strong>Troubleshooting</strong><br />

Possible Cause Symptom<br />

Battery voltage too low<br />

Battery/battery cable<br />

connections corroded<br />

Key switch defective<br />

<br />

<br />

<br />

Air filter clogged <br />

Excessive idle/light load<br />

operation<br />

69<br />

<br />

Incomplete engine run-in <br />

<strong>Engine</strong> overloaded <br />

Excessive secondary load <br />

Valve lash insufficient/<br />

excessive<br />

Injection timing out of spec -<br />

advanced<br />

Injection timing out of spec -<br />

retarded<br />

Governor linkage adjustment<br />

incorrect<br />

Governor spring fatigued or<br />

defective<br />

<strong>Engine</strong> will not crank<br />

<strong>Engine</strong> does not start<br />

Idle rpm too low <br />

<br />

<br />

<br />

<br />

<br />

Piston rings worn or stuck <br />

Piston worn or damaged <br />

Cylinders worn or damaged <br />

Valve/valve guides worn <br />

<strong>Engine</strong> starts, but stops<br />

Poor acceleration<br />

Unsteady rpm<br />

Black smoke<br />

White smoke<br />

Blue smoke<br />

Low oil pressure<br />

Oil level rising<br />

Excessive oil consumption<br />

Wet exhaust<br />

Overheating<br />

<strong>Engine</strong> knocks

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