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Make/Model Information:

  • Brand:   Iveco
  • Models included:
    • Iveco-Nef N45ENT
    • Iveco-Nef N67ENT

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   300
  • File size:  ∼ 39.45 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ENIV-0034

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NEF SERIES Tier 4i
Industrial application
N67 ENT
N45 ENT
SERIES NEF TIER 4i
Industrial application
N45 ENT
N67 ENT
Technical and Repair manual
F4HFE engines Part 1
SERIES NEF TIER 4i
1 SERIES NEF TIER 4i
Print P2D32N019 E Base - March 2012
INTRODUCTION 1 SERIES NEF TIER 4i
Print P2D32N019 E Base - March 2012
Introduction
PREFACE 3
SYMBOLS 3
- Warnings 3
- Service operations 3
GENERAL WARNINGS 5
GENERAL WARNINGS
ON THE ELECTRIC SYSTEM 7
- Bonding and screening 8
OPTIONAL ELECTRICAL AND MECHANICAL
PARTS INSTALLATIONS 9
CONVERSIONS BETWEEN THE MAIN UNITS
OF MEASUREMENT OF THE INTERNATIONAL
SYSTEM AND MOST USED DERIVED
QUANTITIES 9
KEY OF LECTURE OF THE HEADINGS
AND FOOTNOTES 10
SECTION 2 - OPERATIONAL DIAGRAMS 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 2
Operational diagrams
HIGH PRESSURE ELECTRONIC INJECTION FUEL
SYSTEM (COMMON RAIL) 3
- General Specifications 3
ELECTRIC SYSTEM 3
- Sensors 3
- System functionality 4
HYDRAULIC SYSTEM 5
- Fuel system layout 7
FUEL SUPPLY SYSTEM COMPONENTS 8
- Fuel prefilter 8
- Fuel filter 8
- Mechanical supply pump 9
- CP3 high-pressure pump 10
- Rail 14
- Overpressure valve 14
- Electro-injector 15
- Pressure limiter for fuel return 16
LUBRICATION 17
- 4-cylinder engine version 17
- 6-cylinder engine version 18
- Oil pump 19
- Heat exchanger 19
- Oil pressure relief valve 21
OIL VAPOUR RECYCLING 22
COOLING SYSTEM 23
- 4-cylinder engine version 23
- 6-cylinder engine version 24
- Water Pump 25
- Thermostat 25
SECTION 3 - ELECTRICAL EQUIPMENT 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 3
Electrical equipment
LOCATION OF THE MAIN ELECTRICAL
COMPONENTS 3
ENGINE CABLE 4
- 4-cylinder engine version 4
- 6-cylinder engine version 5
ECU ELECTRONIC CONTROL UNIT
(EDC7UC31) 6
- Electroinjectors connector (A) 7
- Sensors connector (C) 8
FUEL SUPPLY SYSTEM ELECTRICAL COMPONENTS 9
- Crankshaft sensor 9
- Timing sensor 9
- Supercharging air pressure - temperature sensor 10
- Engine oil temperature-pressure sensor 10
- Fuel temperature and pressure sensor 11
- Electro-injectors 12
- Pre-post heating resistance and contactor
(if present) 13
- Coolant temperature sensor 14
- Fuel temperature sensor 15
- High pressure pump - fuel flow rate regulator 16
SECTION 4 - SCHEDULED MAINTENANCE 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 4
Scheduled maintenance
SCHEDULED MAINTENANCE 3
- Recovery 3
- Regular maintenance and inspection planning 3.
- Checks not included in maintenance
planning-daily checks 4
MAINTENANCE PROCEDURES 4
- Checks and inspections 4
SECTION 5 - DIAGNOSTICS 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 5
Diagnostics
PREFACE 3
PT BOX 4
PT-BOX INSTRUCTIONS 5
- Hardware installation 5
- Software installation 7
- Software Interface 18
- Acceptance 22
- ECU diagnosis 26
- Programming 35
- Active diagnosis 38
FAULT CODES 40
GUIDE TO DIAGNOSIS THROUGH SYMPTOMS 87
SECTION 6 - REMOVAL AND INSTALLATION OF MAIN COMPONENTS 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 6
Removal and installation of main
components
REMOVAL AND INSTALLATION AUXILIARY DRIVE
- Removal 3
- Installation 3
ALTERNATOR REMOVAL AND INSTALLATION 3
- Removal 3
- Installation 3
COOLANT PUMP REMOVAL AND INSTALLATION 4
- Removal 4
- Installation 4
THERMOSTAT REMOVAL AND INSTALLATION 5
- Removal 5
- Installation 5
REMOVAL AND INSTALLATION STARTER
MOTOR 5
- Removal 5
- Installation 5
ENGINE CABLE REMOVAL AND INSTALLATION 6
- Removal 6
- Installation 6
REMOVAL AND INSTALLATION LOW-PRESSURE
FUEL LINES 7
- Removal 7
- Installation 7
2 SECTION 6 - REMOVAL AND INSTALLATION OF MAIN COMPONENTS F4HFE ENGINES
Base - March 2012 Print P2D32N019 E
REMOVAL AND INSTALLATION FUEL HOSE FROM
HIGH PRESSURE PUMP TO COMMON RAIL 8
- Removal 8
- Installation 8
ENGINE CONTROL UNIT REMOVAL AND
INSTALLATION 9
- Removal 9
- Installation 9
FUEL FILTER REMOVAL AND REFITTING 9
- Removal 9
- Installation 9
FUEL FILTER REMOVAL AND REFITTING 9
- Removal 10
- Installation 10
REMOVAL AND INSTALLATION COMMON
RAIL 10
- Removal 10
- Installation 11
OIL VAPOUR RECIRCULATION (BLOW-BY)
SYSTEM REMOVAL AND INSTALLATION 12..
- Removal 12
- Installation 12
TAPPET COVER REMOVAL AND INSTALLATION 13
- Removal 13
- Installation 13
INJECTOR WIRING SUPPORT REMOVAL AND
INSTALLATION 14
- Removal 14
- Installation 14
REMOVAL AND INSTALLATION ROCKER ARM
ASSEMBLY 15
- Removal 15
- Installation 15
INJECTOR REMOVAL AND INSTALLATION 17..
- Removal 17
- Installation 17
TURBOCHARGER REMOVAL AND INSTALLATION 19
- Removal 19
- Installation 19
EXHAUST MANIFOLD REMOVAL-
INSTALLATION 20
- Removal 20
- Installation 20
INTAKE MANIFOLD REMOVAL AND
INSTALLATION 21
- Removal 21
- Installation 21
COLD START AIR HEATER REMOVAL AND
INSTALLATION (only for F4HFE6132/39/3A/
3C*A002-3/3L*A001-2 ENGINES) 22
- Removal 22
- Installation 22
CYLINDER HEAD REMOVAL AND INSTALLATION 22
- Removal 22
- Installation 23
ENGINE OIL FILTER REMOVAL AND
INSTALLATION 24
- Removal 24
- Installation 24
REMOVAL AND INSTALLATION ENGINE OIL HEAT
EXCHANGER 25
- Removal 25
- Installation 25
OIL SUMP REMOVAL AND INSTALLATION 26..
- Removal 26
- Installation 27
SECTION 7 - GENERAL MECHANICAL OVERHAULING 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 7
General mechanical overhauling
INTRODUCTION 3
FITTING THE ENGINE TO THE ROTATING
STAND 3
REMOVAL OF MAIN COMPONENTS 5
BENCH ENGINE BLOCK DISASSEMBLY 14
CRANKCASE 16
- Controls and measurements 16
- Checking head supporting surface on cylinder
unit 17
TIMING SYSTEM 17
- Camshaft 17
- Cam lift check and pin alignment check 18
BUSH 18
- Bush replacement 19
TAPPETS 19
- Fitting tappets camshaft 20
CRANKSHAFT 21
- Measuring journals and crankpins (4-cylinder) 21.
- Measuring journals and crankpins (6-cylinder) 23.
CONNECTING ROD PISTON ASSEMBLY 25..
- Connecting rod-piston assembly removal 25
- Pistons 26
- Gudgeon pins 26
- Piston rings 27
- Connecting rods 28
2 SECTION 7 - GENERAL MECHANICAL OVERHAULING F4HFE ENGINES
Base - March 2012 Print P2D32N019 E
- Bushes 28
- Fitting connecting rod-piston assembly 29
- Connecting rod-piston assembling 29
- Fitting split rings 29
BENCH ENGINE BLOCK ASSEMBLY 30
- Replacing oil pump control gear 30
- Fitting main bearings 30
- Crankshaft installation 30
- Checking crankshaft end float 31
- Fitting connecting rod half bearings 32
- Fitting connecting rod-piston assembly into
cylinder barrels 32
- Checking piston protrusion 33
CYLINDER HEAD DISMANTLING 34
- Removing the valves 34
- Checking cylinder head wet seal 34
- Checking cylinder head supporting surface 35.
VALVES 35
- Removing carbon deposits, checking and grinding
valves 35
- Checking clearance between valve stem and
valve guide and valve centering 36
VALVE GUIDES 36
VALVE SEATS 36
- Regrinding - replacing the valve seats 36
VALVE SPRINGS 38
ASSEMBLING CYLINDER HEAD 39
REFITTING MAIN COMPONENTS 40
REMOVING THE ENGINE FROM THE ROTATING
STAND 54
COMPLETING ENGINE ASSEMBLY 54
CHECKS AND INSPECTIONS 56
SECTION 8 - TECHNICAL SPECIFICATIONS 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 8
Technical specifications
GENERAL SPECIFICATIONS 3
CLEARANCE DATA 4
TIGHTENING TORQUE 10
SECTION 9 - TOOLS 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
SECTION 9
TOOLS 3
APPENDIX 1 F4HFE ENGINES
Print P2D32N019 E Base - March 2012
Appendix
SAFETY PRESCRIPTIONS 3
- Standard safety prescriptions 3
- Prevention of injury 3
- During maintenance 3
- Respect of the Environment 4


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