PDF Technical & Repair Manual Iveco NEF Engine N60 ENT M37 - 1 MB
This technical and repair manual contains everything you need to service and overhaul the Iveco NEF Engine N60 ENT M37.
It includes complete specifications, torque settings, and step-by-step instructions for disassembly and reassembly.
This guide is essential for engine builders and professional mechanics.
Ensure your engine repairs are done to factory standards with this comprehensive resource.
PDF Viewer
Viewer loads when you scroll here
SHARE THIS MANUAL
Download the PDF Manual
PDF viewer loading area
Text Preview from This Manual
The text below was extracted from the visible preview pages to help you confirm the manual contents before download.
--- Page 1 ---
NEF ENGINE
N60 ENT M37
TECHNICAL AND REPAIR
MANUAL
E X C E L L E N C E
T E C H N O L O G I C A L
--- Page 3 ---
APRIL 2004 OVERVIEW N60 ENT M37 1.11
ENGINE PARTS AND COMPONENTS
Figure 5
12 13 14 15 16
11
10
9
8
7
17
6
04_007_N
5 4 3 2 1
1. Combustion air filter - 2. Common rail high pressure injection pump -3. Fuel filter - 4. Sea water pump - 5. Sea water inlet -
6.Throttle potentiometer - 7. Sacrificial anode - 8. Oil vapor separator - 9. Combustion air-sea water heat exchanger -
10. Location of sea water discharge cap - 11. Manual lubricating oil extraction pump - 12. Combustion air pressure and
temperature sensor - 13. Oil dipstick - 14. Common rail distributor - 15. Air filter clogging sensor - 16. Cooled turbocharger -
17. Sea water junction pipe from after-cooler to engine coolant/sea water heat exchanger.
--- Page 4 ---
APRIL 2004 OVERVIEW N60 ENT M37 1.21
Exhaust manifold cooling
Figure 21
3 4 5
6
2
1
7
8
04_029_N
Engine coolant through exhaust manifold
Hot engine coolant through coolant exchanger
Sea water
1. Sea water/coolant exchanger - 2.Turbocompressor - 3. Exhaust manifold - 4.Thermostatic valve-exchanger water/water
connector - 5. Degassing piping - 6. Plug with pressure valve - 7.Thermostatic valve - 8. Water pump manifold inlet.
--- Page 5 ---
APRIL 2004 OVERVIEW N60 ENT M37 1.31
Pump assembly
Figure 36
8
7
6
1
2
3
5
4
04_046_N
1. Connector fuel outlet to rail - 2. High pressure pump - 3. Pressure control solenoid - 4. Fuel inlet connector from filter -
5. Fuel outlet connector to recirculation manifold - 6. Fuel inlet from tank - 7. Fuel outlet connector from low pressure pump
to filter - 8. Low pressure pump.
The high pressure pump is made up by three radial pumping
elements driven by a tappet set into rotation by a gear of the
timing shaft. In the rear part the feed mechanical pump,dri-
ven by the radial pump,is fitted.
On its side the pressure control solenoid valve is located.
The positioning of the pump does not require timing as the
injections management is entirely electronically controlled.
--- Page 6 ---
APRIL 2004 OVERVIEW N60 ENT M37 1.41
Figure 51
12
6
4
9
5
7
1
11
13
10
2
8
3
04_056_N
1. Pressure rod - 2. Metering rod - 3. Nozzle - 4. Coil - 5. Pilot Valve - 6. Ball valve - 7. Control area - 8. Pressure chamber -
9. Control volume - 10. Feed duct - control - 11. Control fuel outlet - 12. Electric connection - 13. Spring.
The fuel that is in the control volume, backflows towards injection of the fuel into the cylinder.The injection ceases by
the reflux duct causing a pressure decrease in the control disenergizing the coil.The ball valve goes back into the rest
volume itself. position, to recreate an equilibrium of forces such as to make
At the same time the fuel pressure in the pressurized cham- the metering rod going back to close position and stop the
ber causes the rise of the metering rod and consequently the injection.
--- Page 7 ---
APRIL 2004 OVERVIEW N60 ENT M37 1.51
Recovery
It is a special way of control and management characterised
by the adoption of a number of strategies which enable the
system to operate even in the case selfdiagnosis has recog-
nized the presence of anomalies. In the majority of cases sea-
faring can be continued regularly or with reduced perfor-
mance. Adopting a recovery strategy entails the storing of an
anomaly code and the corresponding limitation of the max-
imum power rating delivered by the engine.
The power rating limitation due to recovery strategy is active
up to the stopping of the engine even if the anomaly detect-
ed is not there anymore. The blink code light on the instru-
ment and control panel coming on is foreseen only for the
most serious events.
After run
The stage following after every engine stop.It is characterised
by the delay in deenergizing the main supply solenoid con-
tained inside ECU EDC. During this phase the central unit is
still powered for some seconds during which,the data that
have characterised the optimized management of the engine
up to that moment are transferred from the main volatile
memory into the EEPROM non volatile memory; these data
will then be available for the next starting.
These data can be summarised into:
- Management modes (idle speed, torque delivery bal-
ance, smoke limit…).
- Threshold setting min/max of signal recognition.
- Fault memory.
It is important to be able at every start up to have available
the data that optimize the management and the engine
behaviour in terms of TORQUE AND POWER DELIVERY.It
is therefore MANDATORY to use engine stopping strategies
(e.g. accummulator disconnection) not different from those
foreseen by the manufacturer (key in OFF position) or which
may prevent the correct execution of the after run function.
--- Page 8 ---
APRIL 2004 ELECTRICAL EQUIPMENT N60 ENT M37 3.61
SECTION 3
ELECTRICAL EQUIPMENT
Page
OVERALL 63
SYNOPTIC 64
WIRE HARNESS 65
LOCATION OF ELECTRICAL COMPONENTS
ON ENGINE 66
POWER SUPPLY LINE 67
ALTERNATOR 68
ELECTRICAL STARTER MOTOR 69
RELAY BOX 70
Relays contained in the relay box 70
RPM control 70
Diagnosis connector J1 70
Relay box connectors 71
CONNECTIONS OF THE CENTRAL
ELECTRONIC UNIT (ECU) EDC 7 72
Identification of terminal function 72
Electro-injectors connectors 76
EQUIPOTENTIAL CONNECTIONS
TO ENGINE GROUND 77
ELECTRICAL DIAGRAMS 78
Wiring diagram key 78
Electrical equipment component code 79
Equipment versions until 10/2003 81
Equipment versions since 11/2003 85
CAN - BUS converter module interface wiring 89
Supplementary services battery recharge 90
--- Page 9 ---
APRIL 2004 ELECTRICAL EQUIPMENT N60 ENT M37 3.71
Relay box connectors
(1st version to 10/2003) (2st version from 11/2003)
Figure 12 Figure 15
04_214_N 04_215_N
JF1 JF2 JF2 JF1
Figure 13 Figure 16
PIN 25 PIN 36
10 9 8 7 6 5 4 3 2 1
20 19 18 17 16 15 14 13 12 11
30 29 28 27 26 25 24 23 22 21
40 39 38 37 36 35 34 33 32 31
04_216_N
JF1 CONNECTOR
(view of the wire harness terminal, coupling side) PIN 1 PIN 12
PIN 13 PIN 24
04_218_N
JF1 CONNECTOR
Figure 14 (view of the wire harness terminal, coupling side)
1 2 3 4 5 6
7 8 9 10 11 12
Figure 17
13 14 15 16 17 18
PIN 13 PIN 18
19 20 21 22 23 24
04_217_N 04_219_N
JF2 CONNECTOR
(view of the wire harness terminal, coupling side)
PIN 7 PIN 12
PIN 1 PIN 6
JF2 CONNECTOR
(view of the wire harness terminal, coupling side)
--- Page 10 ---
1
JA 2 F3 F4 F1 F5
17
7
APRIL 2004
JB 8
1 13 QP
14 JF2
19 5 11 17 18 23 24
SW1 SW2 SS SBPO SATA
20 JF2
JC JB JA JF1 ENGINE NORMAL J1
B A
EDC connector A2
2 2 12 13 ROOM T C D A B F E V U
STOP
START
30 F2
CA JF1 JF1 JF1 JF1
32 35 34 3
10 JE 8 JC
50 15
7 4 10 JH 8 JB 18 31 35 JC
JC JE K4 K3 R2
15 JA
7 JB 4 JH
AS JF1
14 JA
11 JF1 DK4 DK3
5 6 1 26 33 36 JA JB
37 JF1 8 13 JB 18
JF1 D1
9 19
K5
JB 5 26 JA R3
A M
DK5
EDC
JF1 JF1
JF2 7 38
JC JC JC PA
3 4 9 10 15 16 21 22
12 38 3
6
ELECTRICAL EQUIPMENT
JB JB
JA JF1 JF1 JB
K1 K2 12 38
BAT 3
1 3 4 9 10 8 18 28 JA JA
+ DK1 DK2
10 16
JA
11 D E A C B
JA JA JA JA JA
29 JA 16 JF1 JF1
5 JA 27 22 20 21 18
22
6 JA
70
10
AC MM
R4
9 JB A
30 50 JF1
B+ PF 12
BAT 2 B JB
–
GG DL1 31 35
SW3
70
2 JA R1
6
JA JA JF1 JF1 JF1 JA
25 28 4 27 2 7 9
JF1 JF1 JF1 JF1 JF1
VERSION TO 10/2003
14 15 17 21 31
N60 ENT M37
A2 3 9 14 15 74 56 36 2 37 4 16 39 64 28 41 42 19 45 44 1 7 12 13 53 52 30 31 48 49 20 27 8 72 83 81 55 63 65
JF2
6 12
85150
3.81
--- Page 12 ---
APRIL 2004 DIAGNOSTICS N60 ENT M37 4.91
SECTION 4
DIAGNOSTICS
Page
FOREWORD 93
ECU BEHAVIOUR 94
Anomalies indicator light 94
Blink code 94
Error deletion procedure 94
Recovery 94
BLINK CODE TABLE 95
DIAGNOSING WITH PT-01 INSTRUMENT 97
Functions of the Instrument 97
Identifier 97
Fault Memory 98
Parameter reading 98
Active diagnostics 98
MAJOR DIAGNOSTIC ACTIONS 99
Checking pressure in fuel supply line 99
Checking component resistance value 99
Checking line insulation 99
REFERENCE VALUES 100
For non hardwired sensors 100
For wired sensors powered by the ECU 101
GUIDE TO BLINK CODE DIAGNOSING 102
GUIDE TO SYMPTOM DIAGNOSING 112
--- Page 13 ---
APRIL 2004 DIAGNOSTICS N60 ENT M37 4.101
REFERENCE VALUES
For wired sensors powered by the ECU
Component ECU Test Minimum - maximum
connection conditions value
Combustion air temperature sensor signal A21 A29 Panel key ON 0,5 ÷ 4,5 Vcc
Coolant temperature sensor signal A18 A36 Panel key ON 0,5 ÷ 4,5 Vcc
Fuel oil temperature sensor signal A17 A34 Panel key ON 0,5 ÷ 4,5 Vcc
Flywheel position and rotation sensor signal A24 A25 Engine running > 0,8 Vac
600 giri/min
Camshaft position and rotation sensor signal A23 A30 Engine running > 0,2 Vac
600 giri/min
Combustion air absolute pressure sensor signal A21 A28 Engine running 0,9 ÷ 1,1 Vcc
600 giri/min
Combustion air absolute pressure sensor power supply A10 A21 Panel key ON 4,5 ÷ 5,5 Vcc
Fuel pressure sensor power supply A12 A20 Panel key ON 4,5 ÷ 5,5 Vcc
Lubrication oil pressure sensor power supply A9 A19 Panel key ON 4,5 ÷ 5,5 Vcc
Safety signal Lever in position 0 > 4 Vcc
from throttle A2-19 A2-72
position sensor Lever in position ≠ 0 < 1 Vcc
Throttle lever position sensor power supply A2-55 A2-81 Panel key ON 4,5 ÷ 5,5 Vcc
Position signal Lever in position 0 0,3 ÷ 0,5 Vcc
from throttle A2-83 A2-81
position sensor Lever in position ≠ 0 > 3 Vcc
--- Page 14 ---
GUIDE TO BLINK CODE DIAGNOSING
APRIL 2004
Blink EDC System reactions Possible cause Recommended tests or action Notes
Code light
9.7 On Possible power reduction. Electronic control unit fault. Delete the fault memory and try again: if the error remains, call Possible association