ENGINE SYSTEMS 5
Table of Contents
Engine Identification.................................................................................................... 7
Engine Serial Number......................................................................................... 7
Engine Emission Label....................................................................................... 8
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 High-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 System.............. .. . . . . . ..................... .. . . . . . ..................... . . . . . . .53
Engine Brake Components...................................................................................53
Engine Brake Control.........................................................................................54
Operation of Diamond Logic® Engine Brake in Braking Mode........................................56
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
F
ollow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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