CUMMINS N14 - Lubricating Oil Consumption Excessive (Continued)

Lubricating Oil Consumption Excessive (Continued)
Cause Corrections
----------
STC Valve Defective or Plumbing Incorrect
OK
f
Refer to ‘‘Lubrication Oil in Fuel’’
Symptom Chart.
----------
Air Compressor Pumping Oil
OK
f
Check air compressor operation. Refer to
‘‘Air Compressor Pumping Excessive
Lubricating Oil into the Air System’’
Symptom Chart.
----------
Turbocharger Seal Malfunctioning
OK
f
Check turbocharger for internal oil
leaks. Refer to Procedure 3-02.
----------
Intake Air Contamination Causing
Excessive Cylinder Liner and Piston
Ring Wear
OK
f
Check intake system for leaks. Refer to
Procedure 3-01.
----------
Intake Air Restriction Excessive or
Internal Engine Damage
OK
f
Perform dyno test to confirm intake air
restriction and/or internal engine damage.
Check the following against engine specifica-
tions:
1. Intake Air Restriction
2. Crankcase Blowby
3. Oil Temperature
----------
Oil Temperature High (Above 120°C
[250°F])
Check oil temperature thermostat. Refer
to Procedure 2-19.
Troubleshooting Symptoms Charts SectionT-Troubleshooting
N14Page T-84