Engine Oil In Cooling System - Perkins 1106D Troubleshooting Manual

50
Troubleshooting Section
9. Check for air in the fuel system. Refer to Systems
Operation, Testing and Adjusting, "Air in Fuel -
Test".
10. Ensure that the fuel system has been primed.
Refer to Systems Operation, Testing and
Adjusting, "Fuel System - Prime".
11. Check the fuel pressure. Refer to Systems
Operation, Testing and Adjusting, "Fuel System
Pressure - Test".
12. If the repair does not eliminate the fault refer to
"Fuel Rail Pump".
Fuel Rail Pump
Note: The fuel rail pump that is installed by the
factory is a nonserviceable item. If any mechanical
fault or any electrical fault occurs within the fuel rail
pump then the fuel rail pump must be replaced.
1. Use the electronic service tool to select the
correct screen display. Refer to Troubleshooting,
"Troubleshooting with a Diagnostic Code".
2. If the fault is not eliminated, refer to "Low
Compression (Cylinder Pressure)".
Low Compression (Cylinder Pressure)
1. Perform a compression test. Refer to Systems
Operation, Testing and Adjusting, "Compression
- Test ".
2. If low compression is noted on any cylinders,
investigate the cause and rectify the cause.
Possible causes of low compression are shown
in the following list:
•
Loose glow plugs
•
Faulty piston
• Faulty piston rings
• Worn cylinder bores
•
Worn valves
•
Faulty cylinder head gasket
•
Damaged cylinder head
3. Perform all necessary repairs.
4. Ensure that the repairs have eliminated the faults.
5. If the repair does not eliminate the fault refer to
"Individual Malfunctioning Cylinders".
This document is printed from SPI². Not for RESALE
Individual Malfunctioning Cylinders
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. Rectify any faults.
3. If all cylinders have been checked and no
faults were detected proceed 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, check for active
diagnostic fault codes.

Engine Oil in Cooling System

Note: This is not an electronic system fault.
KENR6201-01
i03439006