Nanni V6.270, V6.350, V6.320 Instruction Manual

Instruction manual

Marine Diesel engines

V6.270 V6.320 V6.350

970315366 01032011-C

Contents

Safety precautions ..................................................................................................................3

Presentation ............................................................................................................................6

Identification plates ......................................................................................................................6

Additional equipment ...................................................................................................................6

Warranty ......................................................................................................................................7

Environmental responsibility ........................................................................................................7

Preparations before starting........................................................................................................ 7

Fuel supply...................................................................................................................................7

Behaviour of the boat ...................................................................................................................7

Instrument panel .....................................................................................................................8

Warning lights & alarms ...............................................................................................................9

Throttle lever ................................................................................................................................9

Principal parts of the engine .................................................................................................10

Installation inspection ...........................................................................................................11

Operation of the engine ........................................................................................................12

Before starting ................................................................................................................12

Starting the engine ..........................................................................................................12

During operation ...................................................................................................................13

Forward / reverse speed ............................................................................................................13

Running in ..................................................................................................................................13

Stopping the engine .............................................................................................................13

Emergency stop ..............................................................................................................13

After the engine has stopped ..........................................................................................13

Maintenance ..........................................................................................................................14

Daily checks .........................................................................................................................15

Fuel system ..........................................................................................................................16

Bleeding the fuel circuit ...................................................................................................16

Replacing the fuel ﬁ lter ....................................................................................................16

Replacing the fuel preﬁ lter ...............................................................................................17

Draining the water from the fuel preﬁ lter .........................................................................17

Lubrication circuit .................................................................................................................18

Checking the oil level ......................................................................................................18

Replacing the oil ﬁ lter cartridge .......................................................................................18

Draining the engine oil .....................................................................................................19

Cooling circuit - coolant ........................................................................................................20

Coolant ﬁ lling ...................................................................................................................21

Draining the cooling circuit ..............................................................................................21

Rinsing the cooling circuit ................................................................................................21

Cooling circuit - seawater .....................................................................................................22

Cleaning the seawater ﬁ lter .............................................................................................22

Draining the seawater circuit ...........................................................................................22

Replacing the seawater pump rotor ................................................................................23

Air ﬁ lter ......................................................................................................................... ........24

Engine electrical system .......................................................................................................25

Check the electrolyte level ..............................................................................................25

Changing fuses ...............................................................................................................25

Protection against corrosion - Zinc anode ............................................................................26

Protecting the engine during periods of inactivity .................................................................27

Restarting the engine ...........................................................................................................27

Fault-finding ..........................................................................................................................28

Technical specifications ......................................................................................................30

Locating or checking the coolant level.

Indicates that it is essential to read the instructions carefully before handling the engine.

Locating the electrical hazards.

Locating the hot parts entailing substantial risks of burns.

This icon indicates a risk of ﬁ re.

Stipulates that you are strongly recommended against smoking and producing ﬂ ames or sparks in the vicinity.

Locating an area containing pressurised ﬂ uids.

Locating the hazardous rotating parts.

Locating the de-aeration oriﬁ ce(s) (air bleed)

Locating or checking the engine oil level.

Locating the coolant drain oriﬁ ce.

Locating the oil tank drain oriﬁ ce.

Safety precautions

Read this chapter carefully as it concerns your safety . Most accidents are caused by failing to follow basic safety rules. Be aware of the possible risks involved in handling your engine and make sure you take the necessary precautions to protect yourself, those around you and your equipment.

This manual contains important safety indications and information.

They are as follows: I Danger! : This symbol indicates the risk of accidents

and serious personal injury, substantial property damage or serious mechanical faults if the instructions are not followed.

I Attention! : Indicates a risk of personal injury and/or property damage when handling a component.

Remark: Indicates that important information must be known in order to facilitate handling or in particular cases.

Using and handling an engine entails risks that could prove to be extremely dangerous. Some work requires speciﬁ c knowledge and equipment. This work should be carried out by Nanni Diesel authorised personnel or by a professional. If you have to work on the engine, carefully follow the safety instructions set down in this manual.

Certain information is displayed directly on the engine in the form of icons. This information helps you to quickly identify the location of certain components and avoid possible hazards when working on the engine.

Ensure these indications are always visible and replace them if necessary.

I Exhaust gas

Exhaust gases contain carbon monoxide. This colourless and odourless gas is extremely harmful and could lead to poisoning which could result in loss of consciousness or death. The ﬁ rst symptoms of carbon monoxide intoxication are as follows:

• Dizziness

• Nausea

• Headache

• Throbbing temples

• Vomiting

• Fatigue and falling asleep

• Tense muscles If you or anyone else in the vicinity of the engine experiences

any of these symptoms, leave the area of operation of the engine and ﬁ nd fresh air. If the symptoms persist, consult a doctor and have your engine checked.

I Risk of electric shock

Never touch the electrical connectors when the engine is operational. The voltage at the connector terminals can be lethal.

Do not work on the engine without protection: protective goggles and gloves, insulating blankets etc.

Always disconnect the engine and cut the current before working on the electrical system. Isolate the shore power supply to all the electrical circuit equipment.

Ensure your clothing and skin is not damp or sweaty when handling electrical equipment. Remove watches, bracelets and jewellery when working on electrical equipment.

Handling a capacitor that is still charged can be dangerous and cause electrocution.

I Risk of burns

Never touch the hot parts of the engine or the exhaust circuit.

An operational engine gets very hot: the exhaust elbow and pipe, turbocompressor, starter, oil sump, oil, coolant in the hoses and pipes are hot and can burn.

Always check the coolant level before starting the engine. Fluids ejected under pressure can cause serious injury. Release all the pressure in the circuits before removing the

caps. Never open the coolant and oil circuit caps when the engine

is operational and/or hot. Never start or run the engine when the oil ﬁ ll cap is not

screwed on as hot oil could spray out.

If you come into contact with any of these ﬂ uids, consult a doctor immediately.

If the engine gets too hot, switch it off and disconnect it and wait for it to cool down before handling.

I Risk of ﬁ re

Do not smoke near the engine and keep it away from sources of ignition (ﬂ ames or sparks) or any other potential ﬂ ammable vapour or liquid sources.

Do not run the engine without an air ﬁ lter . Do not run the engine in an area in which ﬂ ammable or

explosive materials are stored or where gas is present. Ensure there are no ﬂ ammable liquids in the engine compartment.

Immediately clean up any liquids spilled over yourself or the ﬂ oor and keep the engine compartment clean and accessible so as to minimise the risk of ﬁ re. Be careful as fuel can burn.

I Risk of explosion

Explosions caused by fuel vapour can cause serious injury! Carefully follow the safety rules when ﬁ lling the fuel.

Open and ventilate the storage area of the engine after ﬁ lling. Check that there are no fuel vapours or leaks before starting the fan (if ﬁ tted). Switch the fan on for 5 minutes before starting the engine.

All fuel vapours are ﬂ ammable and explosive. Be careful when handling and storing fuel. Store the fuel in a ventilated area away from sources of ignition (sparks or ﬂ ames) and out of the reach of children.

Stop the engine before ﬁ lling with fuel or lubricant. Do not smoke near the engine and keep it away from sources of ignition (ﬂ ames) when ﬁ lling with fuel and/or lubricant. Wear gloves when investigating possible leaks.

Do not alter or damage the fuel circuit. Close the fuel circuit whenever you work on it.

Ensure you always have an appropriate working extinguisher to hand.

Safety precautions

I Accidental starting

Accidental starting can cause serious injury and even death! Disconnect the battery before working on the engine. Ensure no one is alongside the engine or working on the

gearbox, the shaft line and / or the propeller before starting it.

Ensure all the protection mechanisms are in place before starting the engine.

I Risk of battery explosion

A battery explosion can cause serious injury and even death!

Do not smoke near the batteries and keep them away from sources of ignition (ﬂ ames or sparks). They produce hydrogen which could ignite or explode on contact with an electrical arc or a ﬂ ame. Switch off all electrical appliances in the vicinity when you are working on the batteries. Ensure the battery storage compartment is corrected ventilated.

Avoid touching the battery terminals with metal tools so that no sparks are created which could cause an explosion. Remove your rings, bracelets and necklaces before handing the batteries.

I Battery acid

The acid in batteries can cause serious injury and even death!

When servicing the batteries, wear protective gloves and goggles. Batteries contain sulphuric acid which is highly corrosive.

Acid can spurt from batteries when they are handled. If the acid comes into contact with the skin, rinse thoroughly in fresh water and consult a doctor.

I Exhaust gas

Ensure the exhaust circuit correctly expels the gas produced by the engine.

Regularly check that the exhaust circuit is free of leaks and that the exhaust elbow is correctly afﬁ xed.

Operate the engine in a well aerated and ventilated area away from other people. Run the fan when the engine is operational.

I Rotating parts

Rotating parts can be extremely dangerous and cause serious injury and even death!

Do not work on the engine when it is operational. If work on the engine when running is absolutely necessary , do not touch any hot or rotating parts.

Baggy clothing, hair or objects could be pulled in and/or caught and cause serious injury or substantial property damage.

Do not wear bracelets, necklaces or rings when working on the engine.

Check that the bolts and screws are properly tightened and that the protection mechanisms are in place.

Do not check the ﬂ uid levels or tension of the alternator belt when the engine is operational.

I Lifting the engine

To lift the engine, use the hoisting eyes on the appliance. Always check the robustness and overall condition of

the lifting equipment. Use suitable gear (cables, beams, machines, etc.) to lift your engine. Check that your gear is capable of lifting the engine all the equipment that are mounted on the engine.

Lifting cables and chains must be able to move parallel to each other.

Do not forget that any additional equipment mounted on the engine could alter its centre of gravity. When lifting the engine, it should remain as parallel as possible to the ground.

I Maintenance and spare parts

Nanni Diesel engines are designed to meet the different emission standards while delivering maximum service life and reliability.

Regularly servicing and replacing parts with original Nanni Diesel parts will ensure the engine continues to function optimally.

These parts can be ordered from all Nanni Diesel dealers throughout the world.

I Chemical products

The different ﬂ uids used to run the engine are a health hazard.

Carefully read the instructions on the packaging of these products and always check that the ventilation in the hold space is adequate.

Safety precautions

Presentation

Thank you for choosing a Nanni Diesel engine!

Contact a Nanni Diesel authorised dealer for the servicing of your equipment. A list of dealers can be found on our web site:

www.nannidiesel.com

Nanni Diesel engines are the product of many years of experience in the development of marine engines and equipment designed for use in open seas.

This instruction manual is for the following Nanni Diesel engines:

• V6.270

• V6.320

• V6.350

These 6 cylinders engines have been developed using the very latest innovations in the diesel engine field. Their main features are Common Rail direct fuel injection, 4 valves per cylinder, a turbocharger and a tunnel design type engine block.

The injection system is controlled by an electronic control unit (ECU). This unit regulates the amount of fuel injected according to different parameters.

These engines have also been equipped with fuses on the electrical circuit which will trip in the event of overload current or a short circuit, in order to avoid damages to the parts.

Before using, ensure you have the correct manual for your engine. We will explain how to identify your equipment and its principal speciﬁ cations in the chapters to follow. If you don’t have the correct manual, please contact your Nanni Diesel authorised dealer.

Carefully read all of this engine instruction manual and the gearbox documentation before starting the engine.

Pay particular attention to the information on personal safety. This manual must always be to hand where the engine is used.

We recommend that you visually check the overall condition of your engine before and after using it each time so that you familiarise yourself with the different components and can more easily detect any fuel, oil or coolant leaks or abnormal wearing of the principal parts.

All the information and speciﬁ cations in this manual are based on the technical data applicable at the time of its publication. Changes and updates may be made by Nanni Diesel without notice.

Certain images, diagrams or equipment described in this manual may not exactly represent (or be part of) your engine order.

Identification plates

Your propulsion system has at least 2 identification plates: one for the engine and one for the gearbox.

Keep these plates accessible and in good condition. Record and keep the engine and gearbox serial number and designation. These numbers will be useful if you work on your engine, order parts or invoke the warranty.

The engine identification plate is as follows:

The TYP inscription indicates the commercial designation of the engine (eg. V6.350).

The NR inscription indicates the engine serial number. The CODE inscription lists the various specifications of

your engine.

Additional equipment

Y our engine can be fitted with optional pieces of equipment (alternators, intercalated generator, hybrid propulsion, pumps, trolling valve, etc.)

Refer to the additional documentation concerning this equipment or contact your authorised Nanni Diesel dealer

for more information.

TYP

CODE

Warranty

The owner of the engine is responsible for all safety and maintenance checks as well as for following the maintenance instructions as set forth in this manual and on the Silverwake warranty booklet. The performance and reliability of your engine depend on you following these instructions.

Maintenance should be entrusted to a specialist authorised by Nanni Diesel. The validity of the warranty is dependent on maintenance operations being carried out by an authorised representative.

Wear and tear on parts as well as maintenance costs arise from normal use of the engine and therefore do not constitute manufacturing or material faults under the terms of the warranty.

We strongly advise against making any changes to the engine’s settings, as well as any other technical modification (accessories, spare parts, hitched equipment etc.) not authorised by Nanni Diesel.

Any modification will cause the warranty to be cancelled as we cannot be held liable for work carried out beyond our

control.

Environmental responsibility

Nanni Diesel designs its engines to have minimum environmental impact and a maximum service life. This objective, however, can only be achieved with your full cooperation. Our operating and maintenance instructions are to help you to protect your engine and adopt responsible behaviour vis-à-vis the environment.

Ensure you only use the fuels and oils recommended in this manual. Using another type of fuel or oil could cause major generator malfunctions: higher consumption, reduced engine service life, greater discharge of exhaust gases.

When draining the oil and changing the oil or fuel filter, dispose of the waste in the appropriate container. These fluids cause major damage to flora and fauna if discharged into nature. Ask the pump attendant for an absorption kit in the event of accidental discharge of oil or fuel into the water.

The different fluids used to run the engine are a health hazard. Carefully read the instructions on the packaging of these products and always check that the ventilation in the storage compartment is adequate.

Preparations before starting :

When the engine has been installed on board and before removing the protective elements covering the different orifices, clean the exterior surface of the propulsion system.

For transportation reasons, some of our engines are delivered without their operating fluids. In all cases, you must:

• Check the levels and fill the engine oil if necessary.

• Fill the exchanger with coolant and degas if necessary.

• Check the belt tension.

• Check the tightness of the different connections and

drain caps (coolant and oil).

• Check the tightness of the alternator electrical lugs

(check the cabling by referring to the corresponding documentation), battery terminals, circuit breaker, connection of extension sections, battery electrolyte level.

• Make a final check of the fixing elements and a visual

check of the engine as a whole.

• Check the operation of the ventilation system.

Some of these operations are explained in more detail later in this manual.

I Attention! : The modern diesel engine is precision equipment that requires the use of a high-quality fuel and lubricant.

Fuel supply

Ensure that the fuel contains no residues. If it does, use special filters.

Avoid using fuel mixed with water or other substances as you may damage the engine.

The engine performance is influenced by the fuel temperature, the temperature and relative humidity of the exhaust air and by the altitude.

Behaviour of the boat

The weight distribution on board can modify the centre of gravity of the boat and have an impact on its behaviour in navigation.

The condition of the hull is also a critical factor. A dirty and / or damaged hull will modify the behaviour of the boat.

The propeller must be adapted to the boat and the use that is made of it. A faulty operation of the boat is often due

to an inadequate and / or damaged propeller.

Presentation

STOP

ON / STOP START

RPM x 100

bar

120

160

psi

°C

100

120

°F

105

180

220

250

Presentation

Instrument panel

The instrument panel provides you with important information about the engine when it is operational. Check this information regularly when the engine is operational. The position or appearance of the instruments represented here may vary depending on the type of instrument panel. Not all instrument panels have all these elements.

If your instrument panel does not match the models described in this chapter, contact your Nanni Diesel authorised dealer.

1. Revolution counter. Indicates the rotation speed of the engine in rpm. When the ignition is on, indicates the voltage at the battery terminals.

2. Hour meter/Voltmeter. Record the functioning hours of the engine. When the ignition is on, indicates the voltage at the battery terminals.

3. Engine oil pressure. Attention! This indicator does not show the engine oil level. This indicator shows the oil pressure. The pilot lamp inside the dial is lit and an audible alarm sounds if the oil pressure in the lubrication circuit falls. At idle , the pressure is generally lower.

I Danger! : If this alarm goes off, stop the engine - except in cases of extreme urgency - and contact an authorised Nanni Diesel dealer.

4. Coolant temperature. Indicates the coolant temperature. The pilot lamp inside the dial is lit and an audible alarm sounds if the coolant in the cooling circuit overheats.

In normal operation, the temperature must be between 75 and 85° Celsius.

I Danger! : If this alarm goes off, let the engine run at idle few minutes and check that the seawater flows through the exhaust outlet. If the water does not flow or if the temperature does not drop, stop the engine - except in cases of extreme urgency - and contact an authorised Nanni Diesel dealer.

5. Sta rtin g switch/ key This component star ts and stops the engine. The ON/STOP key switch powers up and stops the engine. The START button starts it.

Certain panels (“button” panels) may not be equipped with a starter key. The ON/STOP button switches on the engine.

Presentation

Warning lights & alarms

6. Heating . This indicator is lit when the glow plugs are heating the combustion chambers (if ﬁ tted on your engine).

7. Battery charge. This indicator is lit when the engine is switched

on (ignition). If it lights when the engine is running, this indicates an engine alternator charging fault.

8. Water in fuel ﬁ lter (if ﬁ tted). This indicator is lit when there is too much water in the fuel ﬁ lter.

9. Faulty system. This indicator is lit when there is a failure on the electronic system of the engine. If this indicator lights, contact an authorised Nanni Diesel dealer.

10. High p ressure t urbo. This aler t indicator indicates t hat the air pressure in the turbocharger is too high.

If one or more of these lights come on when the engine is running, stop the engine (except in emergencies) and contact an authorized dealer.

Throttle lever

On the majority of boats, the engine throttle includes the speed control and gear changing functions (forward / reverse).

However, some boats may be fitted with a reverse command or a safety mechanism that prevents the engine from being started if the throttle is not in the neutral position.

Get information from the boat builder about the type of throttle operation.

Auxiliary 12V output on instruments panel

The A4, B4 and C4 panels are equipped with an auxiliary output of 12V / 3A.

The interfaces linking the panels to the engine are ﬁ tted with a fuse.

1. Engine alternator

2. Engine alternator belt

3. Starter

4. Air filter

5. High pressure injection fuel pump

6. Throttle lever

7. Fuel filter

8. Exhust elbow

9. Fuel fill orifice

10. Oil drain orifice

11. Oil gauge

12. Oil filter

13. Heat exchanger

14. Coolant fill orifice

15. Seawater pump

16. Heat exchanger drain plug

17. Electronic control unit

18. Supports

19. Turbocompressor

20. Hoisting eyes

21. Fuses

Presentation

Principal parts of the engine

Certain equipment may not be part of your engine

+ 22 hidden pages

Nanni V6.270, V6.350, V6.320 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual