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Make/Model Information:

  • Brand:   Iveco
  • Models included:
    • Iveco C13 ENT M77

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   227
  • File size:  ∼ 14.93 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ENIV-0004

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CURSOR Engine
C13 ENT M77
C13 ENT M77
TEChNiCal aNd REpaiR
MaNual
JUNE 2007 EDITION
T E C H N O L O G I CA L E X C E L L E N C E
1. JUNE 2007 C13 ENT M77
Indications for consultation
Sections 1-2-3 are intended for sales personnel, to provide
them with an exact knowledge of the product’s character-
istics and enable them to accurately meet the Customer’s
requirements.
The remaining sections are intended for the personnel that
has the task of performing both ordinary and extraordinary
maintenance; by referring carefully to the chapter devoted to
diagnosis, they too will be able to provide an effective service
of technical assistance.
SECTION CONTENTS
Section Page
OVERVIEW 5
TECHNICAL DATA 35
ELECTRICAL EQUIPMENT 41
DIAGNOSTICS 69
MAINTENANCE 89
SERVICING OPERATIONS
ON INSTALLED ENGINE 95
TOOLS 113
OVERHAUL 125
SAFETY SYSTEM FOR
HOMOLOGATED INSTALLATIONS 197
SAFETY REGULATIONS 221
OVERVIEW 1. JUNE 2007 C13 ENT M77
SECTION 1
IDENTIFICATION DATA 7
Identification Tag 7
COMMERCIAL CODE 8
PRODUCT MODEL NUMBER 9
ENGINE PARTS AND COMPONENTS 10
ENGINE ARCHITECTURE 12
COMBUSTION AIR INTAKE
AND EXHAUST SYSTEM 14
Air/sea water heat exchanger 15
Combustion air pre-heating 15
COOLING FRESH WATER CLOSED LOOP 16
Tube bundle water/water heat exchanger 17
Bypass junction for thermostatic valve 17
SEA WATER OPEN COOLING LOOP 18
Sea water pump 19
ENGINE OIL - LUBRICATION LOOP 20
Gear pump 21
Oil vapor filter 21
Pre-lubrication system (on request) 21
Commutable filters (on request) 21
FUEL LINES 22
Hydraulic schematic diagram 23
INJECTION SYSTEM - EDC 24
EUI electrically controlled pumping injector 25
Electrical and electronic components 27
System functions 30
Reference signals 32
OVERVIEW
OVERVIEW 1.7 JUNE 2007 C13 ENT M77
figure 2
The engine identification data are stenciled on a tag positioned over the engine coolant tank.
figure 1
Identification Tag
Viale dell'Industria, 15/17 - 20010 Pregnana Mil.se MI - ITALY
ENGINE TYPE
ENGINE DWG
ENGINE S/N
COMMERC. TYPE / VERSION
POWER SET CODE
HOMOLOGA TION N
ENGINE F AMIL Y
POWER (KW ) AND SPEED (RPM )
YEAR OF BUILD
S. p. A.
04_002_N
IDENTIFICATION DATA
05_001_C
OVERVIEW 1. JUNE 2007 C13 ENT M77
The purpose of the commercial code is to make it easier to understand the characteristics of the product, categorizing the
engines according to their family, origins and intended application. The commercial code, therefore, cannot be used for technical
purposes and to identify the engine’s components, this is the purpose of the “ENGINE S/N”.
COMMERCIAL CODE
C 13 E N T M 77 . 1 0
ENGINE FAMILY IDENTIFIER: C = CURSOR
DISPLACEMENT: 12.880 c.c.
FUEL SUPPLY: E = ELECTRONIC INJECTION
BLOCK: N = NON STRUCTURAL
AIR INTAKE: T = INTERCOOLED SUPERCHARGED
APPLICATION: M = MARINE
MAXIMUM PERFORMANCE LEVEL ACHIEVABLE
77 = 770 HP
VERSION:
TURBOCOMPRESSOR:
1 = COOLED
2 = NOT COOLED
VERSION
OVERVIEW 1. JUNE 2007 C13 ENT M77
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 the side of the crank-case.
F 3 B E 0 6 8 6 A * B
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
ACTUAL POWER OUTPUT
VARIANTS TO
BASIC ENGINE
TECHNICAL DATA 2. JUNE 2007 C13 ENT M77
SECTION 2
TECHNICAL DATA
Page
SPECIFICATIONS 37
Dimensions 39
TECHNICAL DATA 2.7 JUNE 2007 C13 ENT M77
SPECIFICATIONS
Charge
Injection
4-Stroke Diesel
Supercharged and intercooled
Direct
Number of cylinders 6 in line
Bore mm 135
Stroke mm 150
Total displacement cm3 12280
Compression ratio 15.5 0.8 to 1
Direction of rotation, flywheel side counterclockwise
Minimum idling rpm rpm 525 25
Maximum engine rpm, no load rpm 2525 25
Allowed engine inclination angles
Maximum longitudinal in continuous operation (static + dynamic) degrees/360 + 20
Maximum transverse in continuous operation(static + dynamic) degrees/360 22 30'
Longitudinal for oil level check with standard dipstick degrees/360 0 to +10
Supercharge
Turbocompressor with water-cooled body nr. 2 HOLSET HX 40 M
Maximum pressure bar 2.2
Lubrication
Oil type FE 5 W 40
Oil compliant with specifications -
Total oil capacity on first filling liters (kg) 43 (39.1)
Total oil capacity with sump at minimum level liters (kg) 29 (26.3)
Total oil capacity with sump at top level liters (kg) 36 (32.7)
Oil pressure, warm engine, minimum idling rpm bar = 2
Oil pressure, warm engine, maximum rpm bar = 5
Maximum allowed temperature C 105
Oil dipstick valid for static inclination degrees/360 0 to +10
Fuel supply
Fuel oil compliant with standard EN 590
Low pressure transfer pump gear pump
Flow rate at maximum rpm kg/h 88
Fuel return flow rate to tank kg/h = 12
Filtering: pre filter m 36.5
Filtering: filter m 5
ELECTRICAL EqUIPMENT .1 JUNE 2007 C13 ENT M77
SECTION 
ELECTRICAL EqUIPMENT
Page
OVERVIEW 43
SYNOPSIS 44
WIRE HARNESS 45
LOCATION OF ELECTRICAL
COMPONENTS ON ENGINE 46
POWER SUPPLY LINE 48
ALTERNATOR 49
ELECTRICAL STARTER MOTOR 50
RELAY BOX 51
Diagnosis connector J1 51
Relay box connectors 52
CONVERTER MODULE 53
Functions of the JO terminals 53
CONNECTIONS OF THE
CENTRAL ELECTRONIC UNIT 54
EUI SOLENOID VALVE CONNECTOR 58
Through-bulkhead E connector 58
OPTIONAL EQUIPMENT 59
Lubricating oil transfer module 59
Pre-lubrication and oil transfer module 59
Pre-lubrication system 59
Low temperature starting aid 59
EQUIPOTENTIAL CONNECTIONS
TO ENGINE GROUND 60
(cont.)
DIAGNOSTICS . JUNE 2007 C13 ENT M77
SECTION 
DIAGNOSTICS
Page
FOREWORD 71
ECU BEHAVIOUR 72
Anomalies indicator light 72
Recovery 72
Error deletion procedure 72
ENGINE PROTECTION FUNCTION 72
Reduction of optimum performances due
to excessive temperature of combustion air 73
Reduction of optimum performances due
to excessive temperature of coolant liquid 73
Reduction of optimum performances due
to excessive temperature of lubricating oil 73
EDC7 UC31 DETECTABLE FAULT LIST 74
DIAGNOSIS WITH THE PT-01 INSTRUMENT 76
Functions of the Instrument 76
Identifier 77
Fault Memory 78
Parameter reading 78
Active diagnostics 78
(cont.)
MAINTENANCE . JUNE 2007 C13 ENT M77
SECTION 
MAINTENANCE
Page
PERIODICITY OF CHECKS
AND MAINTENANCE OPERATIONS 91
PREPARING THE ENGINE
FOR LONG IDLE PERIODS 93
ENGINE’S FIRST START/RESTORING
NORMAL OPERATING CONDITIONS 93
SERVICING OPERATIONS ON INSTALLED ENGINE . JUNE 2007 C13 ENT M77
SECTION 
SERVICING OPERATIONS ON INSTALLED ENGINE
Page
FOREWORD 97
PRESCRIPTIONS FOR WORK ON THE
INJECTION SYSTEM AND ITS COMPONENTS 98
REPLACING BELT 99
REPLACING EUI PUMPING UNITS 99
EUI Disassembly 99
EUI Assembly 100
Rocker arm shaft assembly 100
VENTING THE AIR FROM THE FUEL FEED LOOP 101
CLEANING THE ENGINE
COOLANT/SEA WATER HEAT EXCHANGER 102
CLEANING THE AIR/SEA WATER
HEAT EXCHANGER 103
ADJUSTMENTS 104
Adjusting camshaft phase 104
Checking the timing phase 106
Timing shaft phonic wheel keying 106
Flywheel sensor seat position 107
Adjusting valve clearance and EUI pump position 108
UNCOUPLING MARINE PARTS 110
Intake side 110
Exhaust side 111
INSTRUCTIONS FOR
DISEMBARKING THE ENGINE 112
Handling 112
TOOLS 7.11 JUNE 2007 C13 ENT M77
SECTION 7
Page
TOOLS 115
OVERHAUL .12 JUNE 2007 C13 ENT M77
SECTION 
OVERHAUL
Page
Graph and symbols 127
GENERAL CHARACTERISTICS 128
ASSEMBLY CLEARANCE DATA 129
TIGHTENING TORQUES 135
TIGHTENING ORDERS 138
ENGINE DISASSEMBLY AT THE BENCH 142
CYLINDER BLOCK 147
Checks and measurements 147
CYLINDER LINERS 148
Replacing cylinder liners - Removal 149
Fitting and checking protrusion 149
CRANKSHAFT 150
Measuring main journals and crankpins 151
PRELIMINARY MEASUREMENT OF MAIN AND
BIG END BEARING SHELL SELECTION DATA 152
Selecting the main and big end bearing shells 153
Replacing the timing control gear and the oil pump 159
Checking main journal installation clearance 159
Checking crankshaft end float 160
PISTON CONNECTING ROD ASSEMBLY 161
Removal 161
Measuring the diameter of the pistons 162
Conditions for correct
gudgeon pin-piston coupling 162
Piston rings 163
(cont.)
OVERHAUL .12 JUNE 2007 C13 ENT M77
Page Page
CONNECTING ROD 164
Checking connecting rod alignment 165
Mounting the connecting rod-piston assembly 165
Mounting the piston rings 165
Fitting the connecting rod-piston
assembly into the piston liners 166
Piston protrusion check 166
CYLINDER HEAD 167
Valve removal 167
Checking the planarity of the
head on the cylinder block 167
VALVES 168
Valve guides 168
REPLACING INJECTOR HOLDER CASES 169
Removal 169
Mounting 170
Checking protrusion of injectors 171
TIMING GEAR 172
Camshaft drive 172
Idler gear pin 172
Idler gear 172
Twin intermediate gear pin 172
Twin idler gear 172
Replacing the bushings 172
Checking cam lift and pin alignment 173
Camshaft 174
BUSHES 175
Removal 176
Assembly 176
VALVE SPRINGS 178
Fitting the valves and oil seal ring 178
ROCKER SHAFT 179
Shaft 179
Rockers 179
LUBRICATION SYSTEM COMPONENTS 180
Oil pump 180
Overpressure valve 180
Oil pressure control valve 180
Heat exchanger 181
Filter by-pass valve 182
Thermostatic valve 182
Oil filter 182
COOLING SYSTEM COMPONENTS 183
Water pump 183
Thermostatic valve 183
FUEL FEED COMPONENTS 184
Fuel feed 184
Injector-pump 184
ASSEMBLING THE ENGINE ON THE BENCH 185
Diagram showing the underblock
fixing screws tightening order 187
Fitting the connecting rod-piston
assembly into the cylinder liners 188
Piston protrusion check 188
ENGINE FLYWHEEL 191
FITTING CAMSHAFT 192
EUI Assembly 193
Rocker arm shaft assembly 193
Adjusting camshaft phase 194
Checking the timing phase 194
Timing shaft phonic wheel keying 194
Adjusting valve clearance and EUI pump position 194
ENGINE COMPLETION 195
.17 JUNE 2007 C13 ENT M77 SAfETy SySTEM fOR HOMOLOGATED INSTALLATIONS
SAfETy SySTEM fOR HOMOLOGATED
INSTALLATIONS
Page
SECTION 
SAFETY SYSTEM FOR
HOMOLOGATED INSTALLATIONS 199
Unit installed 199
Electronic monitoring unit 200
Sensors 200
Wiring 201
Insulated pole power network (optional) 201
Electrical starting motor 202
Alternator 202
Auxiliary EDC electronic unit 203
Synoptic 204
Wiring 205
Monitoring unit 206
Function of JS connection terminals 207
Position of the safety system sensors 208
Drive shaft revolution speed sensor (BA) 210
Exhaust gas temperature sensor (O) 210
Engine oil low pressure sensor (WA) 211
Refrigerating liquid pressure
and low pressure sensor (WVA) 212
Fuel pressure sensor (VCA) 212
Line balancing components 213
Engine cut-out control buttons (JEM) 213
ELECTRICAL DIAGRAMS
FROM THE SAFETY SYSTEM 214
Assembly drawing of the safety system harness 215
(cont.)
SAfETy REGULATIONS 11.221 JUNE 2007 C13 ENT M77
SECTION 10
SAfETy REGULATIONS
Page
SAFETY REGULATIONS 223
Standard safety regulations 223
Accident prevention 223
During maintenance 223
Respecting the Environment 224


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