Excessive Engine Oil Consumption - Perkins 1106D Troubleshooting Manual

KENR6201-01
•
Damaged cylinder head
3. Perform all necessary repairs.
4. Ensure that the repairs have eliminated the fault.
5. If the repair does not eliminate the fault refer to
"Electronic Unit Injectors".
Electronic Unit Injectors
1. With the engine speed at a fast idle, use the
electronic service tool to isolate one cylinder at
a time. Note if there is any reduction in engine
speed. If a reduction in engine speed is not noted,
the isolated electronic unit injector is not operating
under normal conditions. If the isolation of a
particular cylinder results in a reduction of engine
speed that is less than normal, this may indicate
that the electronic unit injector is operating below
normal performance.
2. Remove the electronic unit injector from the
suspect cylinder. Refer to Disassembly and
Assembly, "Electronic Unit Injector - Remove".
3. Install a new electronic unit injector. Refer to
Disassembly and Assembly, "Electronic Unit
Injector - Install".
4. Repeat the test in 1. If the fault is still apparent,
remove the replacement electronic unit injector
and install the original electronic unit injector.
Refer to Disassembly and Assembly, "Electronic
Unit Injector - Remove" and Disassembly and
Assembly, "Electronic Unit Injector - Install".
5. If the fault is not eliminated, proceed to "Individual
Malfunctioning Cylinder".
Individual Malfunctioning Cylinder
1. With the engine speed at a fast idle, use the
electronic service tool to isolate one cylinder at
a time. Note if there is any reduction in engine
speed. If a reduction in engine speed is not noted,
the isolated cylinder is not operating under normal
conditions. If the isolation of a particular cylinder
results in a reduction of engine speed that is less
than normal, this may indicate that the cylinder is
operating below normal performance. Investigate
the cause of the fault on any cylinder that is
not operating. Investigate the cause of the fault
on any cylinder that is operating below normal
performance.
2. If all cylinders have been checked and no faults
were detected, refer to the Troubleshooting Guide
for the application.
This document is printed from SPI². Not for RESALE
Excessive Engine Oil
Consumption
Probable Causes
•
Misreading oil level
•
Oil leaks
•
Engine crankcase breather
•
Oil level
• Air intake and exhaust system
• Turbocharger
•
Low compression (cylinder pressure)
Recommended Actions
Misreading Oil Level
1. Accurately measure the consumption of oil and
fuel over a period of 50 engine hours.
2. If the oil consumption is greater than 0.2% of the
fuel consumption, use the following procedure
in order to investigate the cause of the high oil
consumption.
Oil Leaks
1. Check for evidence of oil leaks on the engine.
2. Rectify any oil leaks from the engine.
3. Check for evidence of oil in the coolant. Refer to
Troubleshooting, "Engine Oil in Cooling System".
4. If no oil leaks are identified, refer to "Engine
Crankcase Breather".
Engine Crankcase Breather
1. Check the engine crankcase breather for blockage
or restrictions.
2. Check for excessive oil from the outlet of the
breather.
3. Repair all defects. Verify that the repair has
eliminated the fault.
4. If no faults are found, refer to "Oil Level".
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Troubleshooting Section
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