Iveco C78 ENT M50 Service Manual
C78 ENT M50
MARINE ENGINE
INSTALLATION INSTRUCTION
C78 ENT M50
II
FEBRUARY 2003 EDITION
Please read carefully the indications provided in this document: compliance with them will ensure the engine will continue to run smoothly and reliably, protecting users and service personnel against the risk of mishaps.
The instructions contained in this document per tain specifically to the C78 ENT M50 engine and complement the
IVECO Aifo publication “Marine Engine Installation Manual”,
which should be referred to for all matters not covered
herein.
Any installation not in compliance with the contents of
these instructions, or modifications to the engine and its fittings are not admitted.The installing Yard is required to conduct tests to verify the functional compatibility between the
engine’s electrical-electronic equipment and the other electronic devices present on the boat.
Engineers and installation personnel are reminded of their
obligation to comply with workplace safety rules.
To ready the engine for starting, follow the procedure set
out at the end of Section 2 of this document.
To get the best possible performance out of the engine, it
is mandatory to conform with its intended mission profile.
The engine must not be used for purposes other than those
stated by the manufacturer. IVECO Aifo is willing to examine beforehand any requirements for particular installations.
In particular
❏ Use of unsuitable fuels and oils may compromise the
engine’s regular operation, reducing its performance,
reliability and working life.
❏ For the engine to maintain its original condition, it is
absolutely mandatory to use only Original IVECO
Parts.
❏ Any tampering, modifications, or use of non-original
parts may jeopardize the safety of service personnel
and boat users.
Spares may be supplied only if the following are indicated:
- Commercial code and serial number of the engine;
- Part number as per spares catalog.
The information provided below refers to engine features
as of the date of publication.The manufacturer reserves the
right to make modifications at any time and without
advance notice, to meet technical or commercial requirements or to comply with local legal and regulatory requirements.
The manufacturer
is not liable for any errors
or omissions.
The IVECO competence and professionalism of the
Customer Service Network is always available to our customers.
FOREWORD
Publication Edited by:
IVECO Engine Business Unit
C.O. Mkt. Adver tising & Promotion
IVECO Aifo – Pregnana Milanese
Printed L 320.34.011 - Ed. 02/03
C78 ENT M50
III
FEBRUARY 2003 EDITION
SECTION CONTENTS
OVERVIEW 1
INSTALLATION INSTRUCTIONS 2
DIAGNOSTICS 3
C78 ENT M50
IV
FEBRUARY 2003 EDITION
C78 ENT M50 OVERVIEW
1
FEBRUARY 2003 EDITION
Overview
Pagina
IDENTIFYING DATA 3
❏ Product model number 4
❏ Commercial code 5
ENGINE COMPONENTS 6
PERFORMANCE 8
GENERAL SPECIFICATIONS 10
SECTION 1
C78 ENT M50OVERVIEW
2
FEBRUARY 2003 EDITION
C78 ENT M50 OVERVIEW
3
FEBRUARY 2003 EDITION
IDENTIFYING DATA
➠
Figure 2
The engine’s Model Number and identifying data are stenciled on a tag located on the engine coolant tank.
➠
1. Model number - 2. - Drawing number - 3. Serial number - 4. Commercial code
Figure 1/1
Figure 1/2
Istversion tag
II
nd
version tag
1
2
2
3
3
4
4
C78 ENT M50OVERVIEW
4
FEBRUARY 2003 EDITION
The model number is assigned by the manufacturer: it is used to identify the main characteristics of the engine, and to characterize its application and power output level.This number is stenciled on 1stversion tag and always stamped on a side of
crank-case.
PRODUCT MODEL NUMBER
F 2 B E 0 6 8 6 A
B
C
D
*
A
B
C
D
E
ENGINE FAMILY IDENTIFIER
DESIGN ITERATION
ENGINE
NO. OF STROKES AND CYLINDER DISPOSITION (0 = 4 STROKES,VERTICAL)
NO. OF CYLINDER
FUEL + INJECTION (8 = DIESEL,TCA, DIRECT INJECTION)
INTENDED USE (6 = MARINE)
POWER RANGE
A ≤ 500 HP not certified
B = 400 HP certified
C ≤ 330 HP not certified
D ≤ 300 HP certified
ACTUAL POWER OUTPUT
A = 500 HP
B = 400 HP
C = 350 HP
D = 300 HP
E = 220 HP
F = 190 HP
VARIANTS TO
BASIC ENGINE
OR CUSTOMER
}
}
duty
pleasure
C78 ENT M50 OVERVIEW
5
FEBRUARY 2003 EDITION
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 to recognize the engine’s components: this purpose is ser ved by the model number.
COMMERCIAL CODE
C
78
E N T M 50 . 1 0
ENGINE FAMILY IDENTIFIER: C = CURSOR
DISPLACEMENT: 78 = 7800 cc NOMINAL
FUEL SUPPLY: E = ELECTRONIC INJECTION
BLOCK: N = NON STRUCTURAL
AIR INTAKE: T = INTERCOOLED SUPERCHARGED
APPLICATION: M = MARINE
MAXIMUM PERFORMANCE LEVEL ACHIEVABLE
50 = 500 HP
VERSION:
TURBO-CHARGER:
1 = COOLED
2 = NOT COOLED
VERSION: Restyling
C78 ENT M50OVERVIEW
6
FEBRUARY 2003 EDITION
Figure 3
C78 ENT M50 ENGINE COMPONENTS
1. Intake air filter - 2. Intake air pressure and temperature sensor - 3. Lubricating oil refill cap - 4. Lifting padeyes - 5. Coolant
level sensor - 6. Coolant tank - 7. Coolant refill cap - 8. Injector solenoid valve connector - 9. Coolant thermostatic valve
10. Alternator location - 11. Coolant-sea water tube bundle heat exchanger - 12. Auxiliary pulley - 13. Sacrificial anodes
14. Sea water intake - 15. Sea water drain plug - 16. Air-sea water heat exchanger - 17. Sea water pump - 18. Electrical starter
motor - 19. Sea water pump gear - 20. Fuel transfer pump - 21. Fuel filter - 22. Filter clogging sensor -
23. Fuel temperature sensor.
23
22
2
5 7
4
4
8
9
10
11
13
17
18
19
20
1416
15
12
21
1
3
6
C78 ENT M50 OVERVIEW
7
FEBRUARY 2003 EDITION
Figure 4
C78 ENT M50 ENGINE COMPONENTS
1. Coolant feed to exhaust manifold - 2. Lubricating oil filters - 3. Lubricating oil dipstick. - 4. Electronic Management Box
5. Lubricating oil intake-exhaust control unit - 6. Cooled exhaust manifold - 7. Turbocharger inlet pipe-fitting - 8.Timing
mechanism and oil vapor filter cover - 9. Location of timing phase sensor - 10. Oil filter clogging indicator - 11. Cooled
turbo-charger - 12. Exhaust gas manifold - 13. Phase and engine shaft rotation sensor location - 14. Waste-gate actuator
15.Timing phase inspection port - 16.Throttle position sensor potentiometer - 17. Oil drain sump plug - 18. Instrument panel,
diagnostics and EMB power supply wiring connectors - 19. Location of electrical pump and oil and pre-lubrication
intake/exhaust solenoid valve - 20. Location of lubricating oil temperature and pressure sensors - 21. Coolant drain plug.
1
21
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
C78 ENT M50OVERVIEW
8
FEBRUARY 2003 EDITION
Brake horsepower values in accordance with ISO 3046-1, attainable after about 50 hours of operation under reference environmental conditions characterized by 750 mmHg, 25°C, 30% relative humidity.Values fall within a tolerance of 5%.
Short range pleasure service (A1)
Type of boat
Pleasure and military boats with planing hull for high speed or semi-planing and displacing pleasure hulls that use maximum
power for short periods alternating with prolonged periods at lower than maximum speed.
Engine utilization
Use of maximum power limited to 10% of the time. Cruising speed at engine rpm < 90% of nominal calibration rpm. Operating
limit: 300 hours/year. Definition of calibrations and operating limits for military and government agencies according to contractual specifications.
Nominal maximum power kW (HP) @ rpm 368 (500) @ 2600
Nominal maximum torque Nm (kgm) @ rpm 1500 (153) @ 1600÷2200
Long range pleasure service (A2)
Type of boat
Pleasure and military boats with planing hull for high speed or semi-planing and displacing pleasure hulls that use maximum
power for short periods alternating with prolonged periods at lower than maximum speed.
Engine utilization
Use of maximum power limited to 10% of the time. Cruising speed at engine rpm < 90% of nominal calibration rpm. Operating
limit: 1000 hours/year. Definition of calibrations and operating limits for military and government agencies according to contractual specifications.
Nominal maximum power kW (HP) @ rpm 330 (450) @ 2600
Nominal maximum torque Nm (kgm) @ rpm -
Light service (B)
Type of boat
Light boats for tourism, professional, or military use, with frequent speed changes. E.g.: pleasure boats, chartering, light passenger boats, high speed patrol boats for police, emergency, rescue, and special operations uses.
Engine utilization
Use of maximum power limited to 10% of the time. Cruising speed at engine rpm < 90% of nominal calibration rpm. Operating
limit: 1,000 hours/year. Definition of calibrations and operating limits for militar y and government agencies according to contractual specifications.
Nominal maximum power kW (HP) @ rpm 294 (400) @ 2600
Nominal maximum torque Nm (kgm) @ rpm 1400 (143) @ 1600÷1800
Intermediate service (C)
Type of boat
Light boats for commercial, military, work and light fishing uses with variable speed. E.g.: patrol boats, pilot boats, light fishing vessels, water taxies, medium range seasonal passenger transport, fire-fighting.
Engine utilization
Use of maximum power limited to 25% of the time. Cruising speed at engine rpm < 90% of nominal calibration rpm. Operating
limit: 1,000 ÷ 3,000 hours/year. Definition of calibrations and operating limits for military and government agencies according
to contractual specifications.
Nominal maximum power kW (HP) @ rpm 258 (350) @2600
Nominal maximum torque Nm (kgm) @ rpm 1180 (120) @1600÷2200
PERFORMANCE
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