TP-6137 5/03
21
Section 5 Fuel System
5.4 Fuel Injector Nozzle
The fuel injector nozzle ejects and atomizes the fuel in
the cylinder under high pressure. As it is located in the
combustion chamber, it operates at high temperatures
and strong mechanical stress. Clean and adjust the
injector as described below.
Injector Cleaning
1. Use a brass wire brush to remove residual
combustion products on the nozzle’s surface.
2. A special tool/needle is required to clean the
injector nozzle’s spray hole. Consult the engine
service manual for more information.
Figure 5-5
Injector
Injector Pressure Test
Explosive fuel vapors.
Can cause severe injury or death.
Use extreme care when handling,
storing, and using fuels.
WARNING
1. Connect the injector to a tester to check the
injection pressure value. See Figure 5-6.
2. Using the hand pump lever of the tester, pump fuel
in the injector until it ejects at the specified
pressure.
3. During this operation, the ejected fuel must be
evenly atomized without leakage or dripping.
Figure 5-6
Tester
Summary of Contents for 3.5EFOZ
Page 1: ...Marine Generator Sets Includes Engine Maintenance Models 4EOZ 3 5EFOZ TP 6137 5 03 Service ...
Page 10: ...TP 6137 5 03 VI Safety Precautions and Instructions Notes ...
Page 12: ...TP 6137 5 03 ii Service Assistance Notes ...
Page 28: ...TP 6137 5 03 16 Section 3 Scheduled Maintenance Notes ...
Page 42: ...TP 6137 5 03 30 Section 5 Fuel System Notes ...
Page 48: ...TP 6137 5 03 36 Section 6 Cooling System Notes ...
Page 102: ...TP 6137 5 03 90 Section 10 Generator and Engine Disassembly Reassembly Notes ...
Page 104: ...TP 6137 5 03 92 Section 11 Wiring Diagrams 11 1 Wiring Diagram Schematic GM20645 B ...
Page 105: ...TP 6137 5 03 93 Section 11 Wiring Diagrams 11 2 Wiring Diagram Point to Point GM20645 B ...
Page 106: ...TP 6137 5 03 94 Section 11 Wiring Diagrams Notes ...
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