1 ENGINE SYSTEMS 5
Table of Contents
Engine Identification.....................................................................................................7
Engine Serial Number..........................................................................................7
Engine Emission Label.........................................................................................7
Engine Description..............................................................................................9
Engine Component Locations...............................................................................12
Engine Systems.........................................................................................................18
Engine System Diagram......................................................................................18
Air Management System...............................................................................................19
Air Management Components and Air Flow..............................................................19
Charge Air Cooler (CAC).....................................................................................20
Variable Geometry Turbocharger (VGT)...................................................................21
Exhaust Gas Recirculation (EGR) System................................................................23
Exhaust System................................................................................................24
Fuel Management System.............................................................................................25
Fuel Management Components...... ........ . . ....... . . ......... ......... . . ........ ......... . ........ . . ....25
Injection Control Pressure (ICP) System Components and H
igh-Pressure Oil Flow..............26
Fuel Injectors...................................................................................................29
Fuel Supply System.....................................................................................................33
Fuel System Components and Fuel Flow.................................................................33
Fuel Flow Schematic..........................................................................................34
Engine Lubrication System ...........................................................................................37
Lubrication System Components and Oil Flow. .........................................................37
Cooling System..........................................................................................................40
Cooling System Components and Coolant Flow.........................................................40
Electronic Control System.............................................................................................43
Electronic Control System Components..................................................................43
Injection Drive Module (IDM).................................................................................45
Engine and Vehicle Sensors.................................................................................47
Diamond Logic® Engine Brake.... . ........ ........ ........ ........ ......... ........ ........ ......... ........ ........53
Engine Brake Components...................................................................................53
Engine Brake Control.........................................................................................54
Operation of Diamond Logic® Engine Brake in Braking M
ode........................................56
EGES-270-1
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
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