Perkins 1104E Series Troubleshooting Manual page 45

RENR2696-01
Valve lash
1. Check the valve lash and reset the valve lash if it
is necessary. Refer to Systems Operation, Testing
and Adjusting, "Engine Valve Lash - Inspect and
Adjust".
2. If the repair does not eliminate the fault proceed to
"Check for Low Compression".
Check for Low Compression
Examples of low compression are shown on the
following list:
•
Mechanical problems
•
Faulty piston rings
•
Worn cylinder bores
•
Worn valves
•
Faulty cylinder head gasket
•
Damaged cylinder head
1. Remove the fuel injection nozzles and perform a
compression test. Refer to Systems Operations,
Testing and Adjusting, "Compression - Test " data.
2. Make all necessary repairs to the engine.
3. If the repair does not eliminate the fault proceed to
"Check the Fuel Injection Nozzles".
Check the Fuel Injection Nozzles
1. Remove the fuel injection nozzles from the cylinder
head. Refer to Disassembly and Assembly, "Fuel
Injection Nozzle - Remove".
2. Check the fuel injection nozzles. Refer to Systems
Operation, Testing and Adjusting, "Fuel Injection
Nozzle - Test".
3. If the repairs do not eliminate the fault proceed to
"Check the Air Inlet Heater Starting Aid".
Check the Air Inlet Heater Starting Aid
1. Check for proper operation of the air inlet heater
starting aid. Refer to Systems Operation, Testing
and Adjusting, "Electrical System".
2. If the repairs do not eliminate the fault refer to
"Check the Engine Speed/Timing Sensors".
Check the Engine Speed/Timing Sensors
Note: There are two engine speed/timing sensors.
One sensor is positioned in the cylinder block in order
to sense the crankshaft position and the crankshaft
speed. The other sensor is in the fuel injection pump
in order to sense the pump's internal timing wheel
and speed. The sensor in the fuel injection pump
is not serviceable. If the sensor in the fuel injection
pump is faulty then the fuel injection pump should
be replaced.
1. Ensure that the engine speed/timing sensor is
installed correctly to the cylinder block.
2. Ensure that the connectors and cables for the
engine speed/timing sensors are connected
correctly.
3. Check the wiring harness in order to ensure
that the cables to the sensors are not too tight.
This could cause an intermittent problem due to
vibration.
4. If a fault with the engine speed/timing sensor
is suspected refer to Troubleshooting, "Engine
Speed/Timing Circuit - Test".
5. If a fault with the engine speed/timing sensor is
not suspected proceed to "Check the Signal for
the Throttle Demand Sensor".
Check the Signal for the Throttle Position
Sensor
1. Use the electronic service tool and observe the
signal for the throttle position sensor.
2. If the signal is erratic, refer to Troubleshooting,
"Throttle Position Sensor Circuit - Test".
3. If the engine has a 10 position throttle switch refer
to Troubleshooting, "Throttle Switch Circuit - Test".
4. If the repairs do not eliminate the fault proceed to
"Check the Fuel injection Pump".
Check the Fuel Injection Pump
Note: The fuel injection pumps that are installed
by the factory on the 1100 series engines are
nonserviceable items. If any mechanical fault or any
electrical fault occurs within the fuel injection pump
then the fuel injection 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 problem is not eliminated, check for active
diagnostic fault codes.
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Troubleshooting Section