Click 'Download sample' for the free sample file:

 Download sample

Make/Model Information:

  • Brand:   Iveco
  • Models included:
    • Iveco NEF N67-MNS-M22
    • Iveco NEF N67-MNT-M28

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   391
  • File size:  ∼ 25.35 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ENIV-0011

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

 Download sample

04_320_N
rrrrr NEF SERiES
N67 MNS M22
N67 MNT M28
Marine application
NEF ENgiNE
N67 MNS M22
N67 MNT M28
TEchNical aNd REpaiR
MaNual
NOVEMBER 2006 EDITION
T E C H N O L O G I C A L E X C E L L E N C E
1. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION CONTENTS
Indications for consultation
Sections 1-2-3 are intended for sales personnel, to provide
them with exact knowledge of the product’s characteris-
tics and enable them to meet the Customer’s demands
with precision.
The remaining sections are meant for personnel in charge of
carrying out ordinary and extraordinary maintenance; with
an attentive consultation of the chapter devoted to diagnos-
ing, they will also be able to provide an effective technical
assistance service.
OVERVIEW 5
TECHNICAL DATA 37
ELECTRICAL EQUIPMENT 43
DIAGNOSTICS 87
MAINTENANCE 97
SERVICING OPERATIONS
ON INSTALLED ENGINE 103
TOOLS 115
OVERHAUL 123
SAFETY REGULATIONS 181
Section Page
OVERVIEW 1. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 1
OVERVIEW
Page
IDENTIFYING DATA 7
COMMERCIAL CODE 8
PRODUCT MODEL NUMBER 9
ENGINE PARTS
AND COMPONENTS N67 MNS M22 10
ENGINE PARTS
AND COMPONENTS N67 MNT M28 12
ENGINE ARCHITECTURE 14
Crankcase 14
Crankshaft 15
Connecting Rods 15
Pistons 16
Timing system driving gear 16
Cylinder head 18
Valves and valve seats 19
Ancillary machine parts drive 19
COMBUSTION AIR INTAKE
AND EXHAUST SYSTEM 20
Comburent air filter 21
Turbocompressor 21
Air / sea-water heat exchanger 21
COOLING FRESH WATER CLOSED-LOOP 22
Exhaust manifold cooling 23
Thermostatic valve 24
Water pump 24
Additional expansion tank 24
SEA-WATER OPEN COOLING LOOP 25
Sea-water pump 26
Sea-water / coolant heat exchanger 26
(continues on next page)
OVERVIEW 1.6 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
Page
ENGINE OIL LUBRICATION LOOP 27
Gear pump 28
Filter bracket 28
Oil vapour recirculation 28
FUEL LINE N67 MNS M22 29
Fuel supply system scheme 30
FUEL LINE N67 MNT M28.10 31
Fuel supply system scheme 32
Fuel pre-filter 33
Fuel filter 33
FUEL LINE N67 MNT M28.11 34
Fuel supply system scheme 35
Fuel pre-filter 36
Fuel filter 36
OVERVIEW 1. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
IDENTIFYING DATA
Figure 2
Figure 1
06_013_N
04_306_N
The last two figures of the commercial code refer to the
engine model (detail A or B in figure n. 2).
Until the beginning of the year 2006 the engines produced
had the code N67 MNT M28.10 or N67 MNS M22.10
(detail A in figure n. 2).
During the year 2006 relevant modifications have been
made to the electric system and to the fuel supply circuit and
a new model identified with the code N67 MNT M28.11 or
N67 MNS M22.11 was created (detail B in figure 2).
This document concerns both the models. The relating
contents are developed in different chapters which can
be identified thanks to the presence in each title of the
extension M22.10 - M28.10 or M22.11 - M28.11.
Viale dell'Industria, 15/17 - 20010 Pregnana Mil.se MI - ITALY
ENGINE TYPE
ENGINE DWG
ENGINE S/N
COMMERC. TYPE / VERSION N 6 7 M N T M 2 8 . X X
POWER SET CODE
HOMOLOGATION N o
ENGINE FAMILY
POWER (KW) AND SPEED (RPM)
YEAR OF BUILD
S. p. A.
. 1 0 . 1 1
The engine identification data are stenciled on a tag positioned aside the coolant tank.
OVERVIEW 1. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
COMMERCIAL CODE
The purpose of the commercial code is to make the characteristics of the product easier to understand, categorizing the engines
according to their family, origins and intended application. The commercial code, therefore, cannot be used for the technical
purpose of recognizing the engine’s components, which is served by the “ENGINE S/N”.
N 67 M N T M 28 . 1 0
ENGINE FAMILY IDENTIFIER: N = NEF
DISPLACEMENT: 67 = 6700 cc NOMINAL
FUEL SUPPLY: M = MECHANICAL INJECTION PUMP
BASE: N = NON STRUCTURAL
AIR INTAKE: T = INTERCOOLED SUPERCHARGED
APPLICATION: M = MARINE
MAXIMUM PERFORMANCE LEVEL ACHIEVABLE
28 = 280 HP
VERSION:
TURBOCHARGED:
1 = COOLED
2 = NOT COOLED
VERSION
OVERVIEW 1. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
PRODUCT MODEL NUMBER
The model number is assigned by the manufacturer; it is used to identify the main characteristics of the engine, and to character-
ize its application and power output level. It is stamped on a side of crank-case, close to oil filter.
F 4 G E 0 6 8 6 A * E 6 0 1
ENGINE FAMILY IDENTIFIER
DESIGN ITERATION
ENGINE
NO. OF STROKES AND CYLINDER DISPOSITION (0 = 4 STROKES, VERTICAL)
NO. OF CYLINDERS
FUEL + INJECTION (8 = DIESEL, TCA, DIRECT INJECTION)
INTENDED USE (6 = MARINE)
POWER RANGE:
A = MAXIMUM POWER 280 HP
E = EMISSION FOR
MARINE APPLICATION
VARIANTS TO
BASIC ENGINE
TECHNICAL DATA 2. NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 2
TECHNICAL DATA
Page
GENERAL SPECIFICATIONS 39
Dimensions 41
ELECTRICAL EQUIPMENT . NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 
ELECTRICAL EQUIPMENT
Page
FOREWORD 45
ALTERNATOR 46
ELECTRICAL STARTER MOTOR 47
EQUIPOTENTIAL CONNECTIONS
TO ENGINE GROUND 48
N6 MNS M22.10 49
M22.10 - M28.10 OVERALL 51
M22.10 - M28.10 SYNOPTIC 52
M22.10 - M28.10 WIRE HARNESS 53
M22.10 - M28.10 LOCATION OF
ELECTRICAL COMPONENTS IN THE ENGINE 54
M22.10 - M28.10 POWER SUPPLY LINE 55
M22.10 - M28.10 RELAY BOX 56
Internal components position 56
M22.10 - M28.10 ELECTRICAL DIAGRAMS 58
Wiring diagram key 58
Electrical equipment component code 59
Main analog instrument panel 60
Secondary analog instrument panel 61
Supplementary services battery recharge 62
N6 MNS M22.11 63
M28.11 OVERALL 65
M22.11 SYNOPTIC 66
M22.11 WIRE HARNESS 67
M22.11 LOCATION OF ELECTRICAL
COMPONENTS IN THE ENGINE 68
M22.11 POWER SUPPLY LINE 69
(continues on next page)
ELECTRICAL EQUIPMENT . NOVEMBER 2006 N67 MNS M22
N67 MNT M28
M22.11 WIRING DIAGRAMS 70
Wiring diagram key 70
Electrical equipment component code 71
Main analog instrument panel 72
Secondary analog instrument panel 73
Supplementary services battery recharge 74
N67 MNT M28.11 75
M28.11 OVERALL 77
M28.11 SYNOPTIC 78
M28.11 WIRE HARNESS 79
M28.11 LOCATION OF ELECTRICAL
COMPONENTS IN THE ENGINE 80
M28.11 POWER SUPPLY LINE 81
M28.11 WIRING DIAGRAMS 82
Wiring diagram key 82
Electrical equipment component code 83
Main analog instrument panel 84
Secondary analog instrument panel 85
Supplementary services battery recharge 86
DIAGNOSTICS . NOVEMBER 2006 N67 MNS M22
N67 MNT M28
DIAGNOSTICS
Page
FOREWORD 89
MAJOR DIAGNOSTIC ACTIONS 90
Checking pressure in fuel supply line 90
Checking component resistance value 90
Checking line insulation 90
REFERENCE VALUES 91
For non hardwired sensors 91
For inductive sensors 91
Sensors wired with shielded wires 91
GUIDE TO SYMPTOM DIAGNOSING 92
MAINTENANCE . NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 
MAINTENANCE
Page
PERIODICITY OF CHECKS
AND MAINTENANCE OPERATIONS 99
PREPARING THE ENGINE
FOR LONG IDLE PERIODS 101
ENGINE’S FIRST START / RESTORING
NORMAL OPERATING CONDITIONS 101
SERVICING OPERATIONS ON INSTALLED ENGINE 6.10 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 6
SERVICING OPERATIONS
ON INSTALLED ENGINE
Page
FOREWORD 105
PRESCRIPTIONS FOR WORK
ON THE INJECTION SYSTEM 106
VALVES CLEARANCE ADJUSTMENT 106
VENTING THE AIR FROM THE
FUEL FEED LOOP M22 - M28.10 107
VENTING THE AIR FROM
THE FUEL FEED LOOP M28.11 107
CLEANING THE ENGINE COOLANT /
SEA-WATER HEAT EXCHANGER 108
CLEANING THE AIR / SEA-WATER
HEAT EXCHANGER 109
ADJUSTING INJECTION PUMP TIMING 110
Injection pump timing data 111
VERIFY INJECTION PUMP TIMING 111
CALIBRATING THE INJECTION PUMP 111
MARINE PARTS DECOUPLING 112
INSTRUCTIONS FOR DISEMBARKING THE ENGINE 114
Handling 114
TOOLS .11 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 
TOOLS
Page
TOOLS 117
OVERHAUL .12 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 
OVERHAUL
Page
Graph and symbols 125
GENERAL SPECIFICATIONS 126
CLEARANCE DATA 127
ENGINE OVERHAUL - ENGINE
REMOVAL AT THE BENCH 133
Preface 133
Engine setting operations for
the assembly on turning stand 133
Components removal 134
CYLINDER UNIT 140
Checks and measurements 142
Checking head supporting surface on cylinder unit 142
TIMING SYSTEM 143
Checking cam lift and pin alignment 143
Bushes 143
Bush replacement 144
Tappets 144
Fitting tappets - camshaft 145
OUTPUT SHAFT 146
Measuring journals and crankpins 146
Replacing oil pump control gear 149
Fitting main bearings 149
Finding journal clearance 149
Checking crankshaft shoulder clearance 150
CONNECTING ROD - PISTON ASSEMBLY 151
Measuring piston diameter 152
Piston pins 152
Conditions for proper pin-piston coupling 152
Split rings 152
(continues on next page)
OVERHAUL .12 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
Page
Connecting rods 153
Bushes 154
Checking connecting rods 154
Checking torsion 154
Checking bending 155
Fitting connecting rod-piston assembly -
Connecting rod piston coupling 155
Fitting split rings 156
Fitting connecting rod-piston
assembly into cylinder barrels 156
Finding crankpin clearance 157
Checking piston protrusion 158
CYLINDER HEAD 159
Removing the valves 159
Checking cylinder head wet seal 160
Checking cylinder head supporting surface 160
VALVES 161
Removing carbon deposits,
checking and grinding valves 161
Checking clearance between valve
stem and valve guide and valve centering 161
Valve guide 162
Regrinding - Replacing the valve seats 162
Valve springs 163
FITTING CYLINDER HEAD 163
INSTALLATION OF COMPONENTS 164
Refitting the cylinder head 172
Adjusting valve clearance 174
Adjusting injection pump phase 177
Completion of the engine 177
TIGHTENING TORQUES 178
SAFETY REGULATIONS .11 NOVEMBER 2006 N67 MNS M22
N67 MNT M28
SECTION 
SAFETY REGULATIONS
Page
SAFETY REGULATIONS 183
Standard safety regulations 183
Accident prevention 183
During maintenance 183
Respecting the Environment 184
N67 MNS M22
N67 MNT M28
TechNical aNd RepaiR
MaNual
JUNE 2007 EDITION
T E C H N O L O G I C A L E X C E L L E N C E


Payment

Before sending payment please download the sample file to verify the following:

  •   Check the Brand, Model and Year.
  •   Review the Table of Contents (TOC).
  •   Review the Bookmarks.
  •   Inspect the quality of images.

18.50USD

Paypal
Credit card*
Debit card**

*Credit card or Debit card processing at Paypal portal.
**Debit card: available only from selected countries/territories.