Westerbeke 12C- TWO User manual

OPERATORS MANUAL'
MARINE D'IESEL ENGINES·
12C~TWO a 120-TWO,
PUBLICATION NO.039717
REVISION 3
JANUARY 2011
.. ~ WESTERBEKE
WESTERBEKE CORPORA TlON • 150 JOHN HANCOCK ROAD
, MyLES STANDISH INDUSTRIAL PARK' TAUNTON MA 02780
, W.B,SITE: WWW.WESTERBEKE.COM .
. L;r Member National Marine Manu/acturers Association

A WARNING ..
Exhaust gasses contain Carbon Monoxide, an odorless anil
colorless gas. Carbon Monoxide is poisonous and can cause
unconsciousness and death. Symptoms of Carbon Monoxide
exposure can Include:
-Dizziness
- Throbbing in Temples
-Nausea
- Muscular Twitching
-Headache
- Vomiting
- Weakness and Sleepiness
-Inability to Think Coherently
IF. YOU ORANYONE ELSE EXPERIENCE ANY OF THESE SYMPTOMS,
GET OUT INTO tHE FRESH AIR IMMEDIATELY. If symptoms persist,
seek medical attention. Shut down the unit and do not restart
until it has belln inspected and repaired.
A WARNING DECAL is provided by
WESTERBEKE and should be fixed to a
bulkhead near your engine or generator.
14'!'!"i!O:!!~~~ WESTERBEKE also recommends installing
I~ N· I CARBON MONOXIDE DETECTORS in the
WAR NG liviltg/sleeping quarters of your vessel.
~":"~_T"" They are inexpensive and easily
L~tEf~lW"~.~·""'~_.J obtainable at your local marine store.
CALIFORNIA
PROPOSITION 65 WARNING
Marine diesel and gasoline engine
exhaust and some of its constituents
are known to the State of California
to cause cancer, birth defects,
and other reproductive harm.

SAFETY INSTRUCTIONS
INTRODUCTION
Read this safety manual carefully. Most accidents are
caused by failure to folww fundamental rules and
precautions. Know when dangerous conditions existand
take
the necessary precautions to protect yourself, your
personne~ andyour machinery.
The follOWing safety instructions are in compliance with
the American Boat and Yacht Council (ABYC) standards.
PREVENT ELECTRIC SHOCK
A WARNING: Do not touch AC electrical connections
while engine is lunning, 01 when connected to shore
powel. Lethal voltage is plesent at these connections!
• Do not operate this machinery without electrical
enclosures and covers in place.
• Shut offelectrical power before accessing electrical
equipment
• Use insulated mats whenever working on electrical
equipment.
• Make sure your clothing and skin are dry, not damp
(particularly shoes) when handling electrical equipment.
• Remove wristwatch and all jewelry when working on
electrical equipment.
• Do not connect ntility shore power to vessels AC
circuits, except through a ship-to-shore double throw
transfer switch. Damage to vessels AC generator may
result if this procedure is not followed.
• Electrical shock results from handliog a cbarged
capacitor. Discharge capacitor by shorting terminals
together.
PREVENT BURNS - HOT ENGINE
.A WARNING: Do not touch hot engine parts 01
exhaust system components. A lunning engine gets
very hot!
• Always check the engine coolant level at the coolant
recovery tank.
A WARNING: Steam can cause injury 01 death!
• In case of an engine overheat, allow the engine to cool
before touching the engine or checking the coolant.
PREVENT BURNS - FIRE
A WARNING: File can cause injury 01 death!"
• Prevent flash fires. Do not smoke or permit flaines or
sparks to occur near the carburetor, fuel line, filter, fuel
punlp, or other poten!ial sources ofspilled fuel or fuel
vapors. Use a suitable container to catch allfuel when
removing the fuel line, carburetor, orfuel filters.
• Do not operate without a Coast Guard Approved flame
arrester. Backfue can cause severe injury ordeath.
• Do not operate with the air cleaner/silencer removed.
Backfire can cause sevete injury or death.
• Do not smoke or pennit flames or sparks to occur near
the fuel system t(eep the compartment and the
engine/generator clean and
free ofdebris to minimize the
chances of fire. Wipe up all spilled fuel and engine oil.
• Be aW\ll'e -diesel fueLw.jj] burn.
PREVENT BURNS - EXPLOSION
A WARNING: Explosions flom fuel vapors can cause
in jUlY 01 death!
• Follow re-fueling safety instructions. Keep the vessels
hatches closed when fueling. Open and ventilate cabin
after fueling. Checkbelow for fumes/vapor before
running the blower. Run the blowerfor four minutes
before starting
your engine.
• All fuel vapors are highly explosive. Use extreme care
when handling and storing fuels. Store fuel in a
well-ventilated
area away from spark-producing
equipment and out of the reach ofchildren.
• Do not fill the fuel tank(s) while the engine is running.
• Shut off the fuel service valve at the engine when servicing
the fuel system. Take care in catching any fuel that might
spill. DO NOT allow any smoking, open flames, or other
sources of fire near the fuel system or engine when
servicing. Ensure proper ventilation exists when servicing
the fuel system.
• Do not alter or modify the fuel system.
• Be sure all fuel supplieiiiave a positivei~i\Utoff valve.
• Be certall\ fuel line fittings are adequately tightened and
free ofleaks. .
• Make sure a fire extinguisher is Installed nearby and is
properly maintained. Be familiar with its proper use.
Extinguishers rated
ABC by the NFPA are appropriate
for all applications encountered in this environment.
~ WESTERBEKE
Engines & Generators
•
I

SAFETY INSTRUCTIONS
ACCIDENTAL STARTING
A WARNING: Accidental starting can cause injury
or death!
• Disconnect the battery cables before servicing the engine/
generator. Remove the negative lead first and reconnect
it
last.
• Make certain all personnel are clear of the engine before
starting.
• Make certain all covers, guards, and hatches are re-
installed before starting the engine.
BATTERY EXPLOSION
A WARNING: Battery explosion can cause injury
or death!
• Do not smoke or allow an open flame near the battery
being serviced. Lead acid batteries emit hydrogen, a
highly explosive gas, which can be ignited by electrical
arcing or by lit tobacco products. Shut off all electrical
equipment
in the vicinity to prevent electrical arcing dur-
ing servicing.
. • Never connect the negative (-) battery cable to the posi-
tive (+) connection terminal of the starter solenoid. Do
not test the battery condition by shorting the terminals
together. Sparks could ignite battery gases or fuel vapors.
Ventilate any compartment containing batteries to prevent
accumulation of explosive gases. To avoid sparks, do not
disturb the battery charger connections while the battery
is being charged.
• Avoid contacting the terminals with tools, etc., to prevent
burns or sparks that could cause an explosion. Remove
wristwatch, rings, and any otherjewelry before handling
the battery.
• Always tum the battery charger offbefore disconnecting
the battery connections. Remove the negative lead first
and reconnect it last whenservicing the battery.
BATTERY ACID
A WARNING: Sulfuric acid in batteries can cause
severe injury or death!
• When servicing the battery or checking the electrolyte
level, wear rubber gloves, a rubber apron, and eye protec-
tion. Batteries contain sulfuric acid which is destructJve.
If it comes in contact with your skin, wash it off at once
with water. Acid may splash on the skin or into the eyes
inadvertently when removing electrolyte caps.
TOXIC EXHAUST GASES
A WARNING: Carbon monoxide (CO) is a deadly gas!
• Ensure that the exhaust system is adequate to expel gases
discharged
from the engine. Check the exhaust system
regularly for leaks and make sure the exhaust manifold!
water-injected elbow is securely attached.
• Be sure the unit and its surroundings are well ventilated.
Run blowers when running the generator set or engine.
• Don't run the generator set or engine unless the boat is
equipped
with a functioning marine carbon monoxide
detector that
complies with ABYCA-24. Consult your boat
builder
or dealer for installation ofapproved detectors.
• For additional information refer to ABYC T-22
(educational information
on Carbon Monoxide).
A WARNING: Carbon monoxide (CO) is an invisible
odorless gas. Inhalation produces flu-like symptr1ms,
nausea or death!
• Do not use copper tubing in diesel exhaust systems. Diesel
fumes can rapidly destroy copper tubing in exhaust systems.
Exhaust sulfur causes rapid deterioration of copper tubing
resulting in exhaust/water leakage.
• Do not install exhaust outlet where exhaust can be drawn
through portholes, vents, or aii' conditioners. If the engine
exhaust
discharge outlet is near the waterline, water could
enter the exhaust discharge outlet and close or restrict the
flow of exhaust. Avoid overloading the craft.
• Although diesel engine exhaust gases are not as toxic as
exhaust fumes from gasoline engines, carbon monoxide
gas is present in diesel exhaust fume~. S?me o~ the
symptoms or signs of carbon monOXIde Inhalation or
poisoning are:
Vomiting
Dizziness
Headache
Nausea
AVOID MOVING PARTS
Inability to think coherently
Throbbing in temples
Muscular twitching
Weakness and sleepiness
A WARNING: Rotating parts can cause injury
or death!
• Do not service the engine while it is running. If a situation
arises in which it is absolutely necessary to make operat-
ing adjustments, use extreme care to avoid touching mov-
ing parts and hot exhaust system components.
~ WESTERBEKE
Engines & Generators
ii

SAFETY INSTRUCTIONS
OPERATORS MANUAL
Many of the preceding safety tips and warnings are repeated
in your Operators Manual along with other cautions and
notes to highlight critical infonnation. Read your manual
carefully, maintain your equipment, and follow all safety
procedures.
GASOLINE ENGINE AND GENERATOR INSTALLATIONS
Preparations to install a gasoline engine or generator should
begin with a thorough examination of the American Boat and
Yacht Council's (ABYC) standards. These standards are from
a combination of sources including the USCG and the NFPA.
Sections of the ABYC standards ofparticular interest are:
H-2 Ventilation
H-24 Gasoline Fuel Systems
P-l Exhaust Systems
P-4 Inboard Engines
E-9
DC Electrical Systems
All installations must comply with the Federal Code of
Regulations (FCR).
ABYC, NFPA AND USCG PUBLICATIONS FOR
INSTALLING DIESEL ENGINES
Read the following ABYC, NFPA and USCG pUblications
for safety codes and standards. Follow their recommenda-
tions when installing your engine.
ABYC (American Boat and Yacht Council)
"Safety Standards for Small Craft"
Order from:
ABYC
3069 Solomon'S Island Rd.
Edgewater, MD 21037
NFPA (National Fire Protection Association)
"Fire Protection Standard for Motor Craft"
Order from:
NFPA
11 Tracy Drive
Avon Industrial Park
Avon, MA 02322
USCG· (United States Coast Guard)
"USCG 33CFR183"
Order from:
U.S. Government Printing Office
Washington, D.C. 20404
~ WESTERBEKE
Engines & Generators
iii

INSTALLATION
When installing WESTERBEKE engines and generators it is important that strict
attention be paid to the following information:
CODES AND REGULATIONS
Strict federal regulations, ABYC guidelines, and safety codes must be complied with
when installing engines and generators in a marine environment.
SIPHON-BREAK
For installations where the exhaust manifold/water injected exhaust elbow is close to
or will be below the vessel's waterline, provisions must be made to install a siphon-
break in the raw water supply hose to the exhaust elbow. 'This hose must be looped a
minimum of 20" above the vessel's waterline. Failure to use asiphon-break when
the exhaust manifold injection port is at or below the waterline will result in raw
water damage to the engine and possible flooding of the boat.
If you have any doubt about the position of the water-injected exhaust elbow relative
to the vessel's waterline under the vessel's various operating conditions, install a
siphon-break.
NOTE:. A siphon-break requires periodic inspection and cleaning to ensure proper
operation. Failure to properly maintain a siphon-break can result in catastrophic
engine damage. Consult the siphon-break manufacturer for proper maintenance.
EXHAUST SYSTEM
The exhaust hose must be certified for marine use. The system must be designed to
prevent water from entering the exhaust under any sea conditions and at any angle
of the vessels hull.
Carefully review the Marine Installation manual provided with your
WESTERBEKE Engine or Generator.
Additional manuals are available from your WESTERBEKE dealer.
Engines & Generators
iv
AVAILABLE FROM
YOUR WESTERBEKE
DEALER

TABLE OF CONTENTS
Parts Identification ............................................... .2 Alternator Testing/Troubleshooting .................. 25
Introductl
"on 3 Battery Care.................................................... 27
.............................................................
Warranty Procedures.........................................3 Glow Plugs ......................................................... 28
Serial Number Location .................................. .4 Starter Motor ..................................................... 29
Fuel, Engine Oil and Coolant.. ............................ 5 Engine Wiring Diagram (#39144) ...................... 31
Admiral Control Panel ......................................... 6 Engine Wiring Schematic (#39144) .... ............... 32
Captain Control Panel ......................................... 7 Admirals Panel Wiring Diagram (#36844) .... .... .33
Preparations for Initial Start-Up ......................... 8 Captains Panel Wiring Diagram (#36467) ......... 34
Starting/Stopping Procedure ............................... 9 En9ine Troubleshooting ..................................... 35
Engine Break-In Procedure ............................... l0 Control Panel Troubleshooting...................... .37
Warning Lights, Alarms and Circuit Breaker .... 11 Engine Adjustments ............................................ .38
Maintenance Schedule .................................... .12 Adjusting Idle Speed ........ :d ........................·....3 38 8
S FuellRun Shut-Off Solenol ...........................
Fuel ystem ....................................................... 14 D' Belt AdJ'ustment 39
nve ...................................
FueI/Water Filter.............................................
14 E' Co pressl'on 39
ngme m .......................................
Fuel Filters......................................................
14 'l' ti' 0'1 Pressure 40
~es ng 1 ...................................... ..
Cooling System .................................................. 15 Oil Pressure Switch ....................................... .40
Changing Coolant........................................... 16 Valve Clearance Adjustment ......................... .41
Thennostat...................................................... 17 CylinderHeadBolt Tightening ..................... .41
Raw Water Intake Strainer.............................. 18 Injection Timing ............................................ .42
Raw Water Pump............................................ 18 Fuel Injectors ,................................................ .43
Raw Water Pump Parts Breakdown ............18A JS and BWTransmissions ................................. .44
Heat Exchanger .............................................. 11
9
9
Hurth HBW/ZF Transmissions ...... : .................... .46
Zinc Anode ...................................................... '.. P'RM N . T "" 51
E " L
b" t" 0"1 20' ,ewage ransmlsslons ............................ .
ngme u rica 109 I .................. ................ ..... "S f" t" 54
Ch
. th 0'1 F'lt 20 Engme peci Ica Ions ...................................... .
angmg. ell er ...................................
Changing the Oil ...........................................20
Lay-up and Recommissioning .......................... .56
Remote Oil Filter (Optional) .............................. 21 Torque Specifications ...... ................................ .57
Water Heater ..................................................... 22 Metric Conversions Oata ................................... 58
Tachometer .. ...................................................... 24 Suggested Spare Parts ...................................... 60
...v- WESTERBEKE
Engines & Generators
1

PARTS IDENTIFICATION
AIR INTAI!E/SIILENCIER,
.•• U'~'" PRESSURE CAP
"iI~~:3r--- ENGINE SERIAL
~ NUMBER
OIL DRAIN HOSE
MOTOR
i FRONT
DC ALTE~NATOR
FILL CAP
COOLANT PRESSURE
INTAKEJSILENCE~
___ -.LIJ"~ UHIUN PLUG
FUEL PUNIP-,lbi~f:
OIL FILL
.J ___ , 'RAW WATER PUMP
INLET FUEL FILTER
OIL DIPSTICK
DRAIN HOSE
SUMP
OIL FILTER
REAR
TRANSMISSION
~ WESTERSEKE
EngInes & Generators
2

INTRODUCTION
This WESTERBEKE Diesel Engine is a product of
WESTERBEKE's long years of experience and advanced
technology. We take great pride in the superior durability and
dependable performance of our engines and generators.
Thank you for selecting WESTERBEKE.
In order to get the full use and benefit from your generator it
is important that you operate and maintain it correctly. This
manual is designed to help you do this. Please, read this
manual carefully and observe all the safety precautions
throughout. Should your engine require servicing, contact
your nearest WESTERBEKE dealer for assistance.
This is your operators manual. A parts catalog is also
provided and a technical manual is available from your
WESTERBEKE dealer. If you are planning to install this
equipment contact your WESTERBEKE dealer for'
WESTERBEKE'S installation manual.
WARRANTY PROCEDURES
Your WESTERBEKE Warranty is included in a separate
folder. If, after 60 days of submitting the Warranty Registry
form you have not received a customer identification card
registering your warrauty, please contact the factory in
writing with model information, including the unit's serial
number and commission date.
Customer Identification Card
IW WEStERSEKE
, Engines & Generators
Customer Identification
MR. ENGINE OWNER
MAIN STREET
HOMETOWN, USA
Model
Ser.#
Expires
PRODUCT SOFTWARE
Product software, (tech data, parts lists, manuals,
brochures and catalogs), provided from sources other than
WESTERBEKE are not within WESTERBEKE's control.
WESTERBEKE CANNOT BE RESPONSIBLE FOR THE
CONTENT OF SUCH SOFTWARE, MAKES NO WAR-
RANTIES OR REPRESENTATIONS WITH RESPECT
THERETO, INCLUDING ACCURACY, TIMELINESS OR
COMPLETENESS THEREOF AND WILL IN NO EVENT
BE LIABLE FOR ANY TYPE OF DAMAGE OR INJURY
INCURRED IN CONNECTION WITH OR ARISING OUT
OF THE FURNISHING OR USE OF SUCH SOFTWARE.
WESTERBEKE customers should also keep inmind the
time span between printiogs of WESTERBEKE product
software and the unavoidable existence ofearlier
WESTERBEKE manuals. In summation, product software
provided with WESTERBBKE products, whether from
WESTERBEKE or I1ther suppliers, must not and cannot
be
relied upon exclusively as the definitive authority on
the respective product. It not "uly makes good sense
but
is imperati~e that appropriate representatives of
WESTERBEKE or the supplier in question be consulted
to detennine the accuracy and currentness of the
product software being consulted by the customer.
NOTES, CAUTIONS AND WARNINGS
As this manual takes you through the operating procedures,
maintenance schedules, and troubleshooting of your maline
engine, critical information will be highlight~d by NOTES,
CAUTIONS, and WARNINGS. An explanatIon follows:
NOTE: An operating procedure essential to note.
A CAUTION: Procedures, which if not strictly
observed, can result in the damage or destruction of
your engine.
A WARNING: Procedures, which if not properly
followed, can result in personal injury or loss of life.
'M7" WESTERBEKE
Engines & Generators
3

INTRODUCTION
SERIAL NUMBER LOCATION
The engine's model and serial number are located on
a nameplate mounted on the side of the engine's water
jacketed exhaust manifold. The engine serial number
is
also stamped into the engine block on the flat surface
out board
of the injection pump. Take time to enter this
important information
on the illustration of the namplate
below,
as this will provide a quick reference when seeking
technical
infOrmation and/or ordering parts.
iiiiijiiiiiiiiiii ..
Fill in the' injo1711ation for y~ur reference. ~
UNDERSTANDING THE QIESEL ENGINE
The diesel engirie closely resembles the gasoline engine,
since
the mechanism is essentially the same. The cylinders
are arranged above a closed crankcase. The crankshaft is the
same general type as a gasoline engine, and the diesel engine
has the same types of valves, camshaft, pistons, connecting
rods
and lubricating system.
Therefore, to a great extent, a diesel engine requires the
same preventive
maintenance as a gasoline engine. The
most important
factors are proper ventilation and proper
maintenance of
the fuel, lubricating and cooling systems.
Fuel and lubricating filter elements must be replaced at the
time periods specified, and frequent checking for
contamination
(water, sediment, etc.) in the fuel
system is also essential. Another important factor is the
consistent
use of the same brand ofhigh detergent diesel
lubrication
oil desigoed specifically for diesel engines.
The
diesel engine does differ from the gasoline engine,
however, in its method ofhandling and firing of fuel. The
carburetor
and ignition systems are replaced by a single
component'- the fuel injection pump -which performs the
function ofboth.
~Iii--DIIESI!L FUEL SPRAY
PRE·COMBUSTION CHJI,MBI:R~";:
ORDERING PARTS
Whenever replacement parts are needed, always provide the
engine model number and serial number as they appear on
the silver and black name plate located on the manifold. You
must provide us with this information so we may pro'perly
identify your engine. In addition, include a complete part
description and part number for each part needed (see the
separately furnished Parts List). Insist upon WESlERBEKE
packaged parts because willfit or generic parts are frequently
not made to the same specifications as original equipment.
SPARES AND ACCESSORIES
Certain spares will be needed to support and maintain your
WESlERBEKE engine. Your local WESlERBEKE dealer
will assist you in preparing an inventory of spare parts. See
the SPARE PARTS page in this manual. For Engine
Accessories, see WESlERBEKE'S ACCESSORIES
brochure.
INSTALLATION MANUAL
Publication #43400 provides de1hlled information for
installing engine •. ' .
. PROTECTING YOUR INVESTMENT
Care at the factory during assembly and thorough testing
. have resulted in aWESlERBEKE engine capable of many
thousands of hours of dependable service. However the
manufacturer
cannot control how or where the engine is
installed in the vessel or the manner in which the unit is
operated and serviced in the field. This is up to the
buyer/owner·operator.
NOTE: Six important steps to ensure 10llg engine life:
• Proper engine installation and alignment.
..• Anefficient well.designed exhaust system that includes
an anti-siphon break to prevent water from entering the
engine.
• Changing the engine o{[ and oilfilters every 100
operating hours.
.• Proper maintenance of all engine and generator
components according to the maintenance schedule in
this manual.
• Use clean, filtered dieselJueL
• Winterize your engine according to the "Lay.up and
Recommissioning" section in this manuaL
EngInes & Generators
4

DIESEL FUEL, ENGINE OIL AND ENGINE COOLANT
DIESEL FUEL
USE A DIESEL FUEL WITH A CETANE RATING OF #45 OR HIGHER.
(No. 2·D (SAE J313) diesel fuel according to ASTM D975}.
Care Of The Fuel Supply
Use only clean diesel fuel! The clearance of the components
in your fuel injection pump is very critical; invisible dirt
particles which might pass through the filter can damage
these finely finished parts. It is important to buy clean fuel,
and keep it clean. The best fuel can be rendered
unsatisfactory by careless handling or improper storage
facilities.
To assute that the fuel gping into the tank for your
engine's daily use is clean and pure, the following practice is
advisable:
Purchase a well-known brand of fuel.Install and regularly
service a
good, visual-type fuel filter/water separator between
.the fuel tank and the engine. The Raycor 500 MA or 230
RMAM are good examples of such filters.
ENGINE OIL
Use a heavy duty engine oil with an API classification of CF,
CG-4, CH-4 or CIA. Change the engine oil and filter after an
initial 50 hours ofbreak-in operation. Then follow the oil and
filter change intervals as specified in the MAINTENANCE
SCHEDULE in
this manual. Westerbeke Corporation does
not approve or disapprove of the use of synthetic oils. If
synthetic oils are used, engine break-in must be performed
using conventional
oil. Oil change intervals must be as in the
MAINTENANCE SCHEDULE, not extended because
synthetic
oils are used.
SAE OILVISCOSITY GRADES
For all temperatures use SAE lOW-3D or l5W-40.
A CAUTION: 00 not allow two or more brands of
engine oil to mix. Each brand contains its own a(lditives;
additives of different brands 1I0uid reactin the miXture
to produce properties harmful to your engine.
OIL PRESSURE
The engine's oil pressure, during operation, is indicated
by the oil pressure gauge on the instrument panel. During
normal operation, tl,e oil pressure will range between 35 and
65 psi 2.5 and 3.9 kg/cm').
NOTE: A newly started, cold engine can have an oil pressure
reading upwards
of60 psi (4.2 kg/cm". A warmed engine can
have an oil pressure reading as lowas 25 psi (1.8 kg/cm".
These readings will vary depending upon the temperature of
the engine. the loadplaced on the engine, and the RPM's.
ENGINE COOLANT
WESTERBEKE recommends a mixture of 50% antifreeze
and 50% distilled water. Distilled water is free from the
chemicals
that can corrode internal engine surfaces.
The
antifreeze performs double duty. It allows the engine to
run at proper temperatures by transferring heat away from
the engine to the coolant, and lubricates and protects the
cooling circuit from rust and corrosion. Lookfor a good
quality antifreeze that contains Supplemental Cooling
Additives
(SCAs) that keep the antifreeze chemically
balanced,
crucial to long term protection.
The distilled water and antifreeze should be premixed before
being
poured into the cooling circuit.
PURCHASING ANTIFREEZE
Rather than preparing the mixture, WESTERBEKE
recommends buying the premixed antifreeze so that so that
when adding coolant the mixture will always be con·ect.
There
are two common types of antifreeze, Ethylene Glycol
(green) and Propylene Glycol (red/purple), either can be used
but
do not mix the two and if changing from one to another,
flush the engine thoroughly.
Premixed antifreeze for DIESEL Engines:
Specification #ASTM
D53456.
MAINTENANCE
Change the engine coolant every five years regardless of the
number of operating hours as the chemical additives that
protect
and lubricate the engine have a limited life.
COOLANT RECOVERY TANK
Acoolant recovery tank kit is supplied with each
engine or generator. The purpose of this recovery tank is to
allow for engine coolant expansion and contraction during
engine
operation, without the loss of coolant and without
introducing
air into the cooling system. This kit is provided .
and must be installed before operating the engine.
NOTE: This tank, with its short run of plastic hose, is best
located at or above the level
of the engine's manifold, but it
can be located below the level
of the engine's manifold if the
particular installation makes this necessary.
Engines & Generators
5

ADMIRAL CONTROL PANEL
DESCRIPTION
This manually-operated control panel is equipped with a
KEY switch and RPM gauge with an ELAPSED TIME
meter which measures the engine's running time in hours and
in 1/10 hours. 'The panel also includes a WA1ER 1EMPER-
ATURE gauge which indicates water temperature in degrees
Fahrenheit. an OIL PRESSURE gauge which measures the
engine's oil pressure in pounds per square inch. and a DC
control circuit VOLTAGE gauge which measures the sys-
tem's voltage. All gauges are illuminated when the key
switch is turned on and remain illuminated while the engine
is inoperation. The panel also contains two rubber-booted
pushbuttons. one for PREHEAT and one for START.
RPM GAUGE; REGIS-
TERS REVOLUTIONS
PER MINUTE OF THE
ENGINE AND CAN BE
RECALIBRATED FOR
ACCURACY FROM THE
REAR OFTHE PANEL.
WATER TEMPERATURE GAUGE; THIS GAUGE IS
GRADUATED IN DEGREES FAHRENHEIT AND IS
ILLUMINATED WHILE THE KEY SWITCH IS
TURNED ON. THE ENGINE'S NORMAL OPERATING
TEMPERATURE IS 170'-190'F (77' - 66·C).
HOURMETER; --p;,.., ____ _
REGISTERS ELAPSED
TIME. AND SHOULD BE
USED AS A GUIDE FOR
THE MAINTENANCE
SCHEDULE.
When the engine is shut down with the key switch turned off.
the water temperature gauge will continue to register the last
temperature reading indicated by the gauge before electrical
.power was turned off. 'The oil pressure gauge will fali to zero
when the key switch is turned off. 'The temperature gauge
. will once again register the engine's Ime temperature when
electrical power is restored to the gauge.
A separate alarm buzzer with harness is supplied with every
Admiral Panel. The installer is responsibla'for electrically con-
necting the buzzer to the four~pin connection on the engine's
electrical harness. 'The installer is also responsible for installing
the buzzer in a location where it will be dry and where it will
be audible to the operator should it sound while the engine is
running. 'The buzzer will sound when the ignition key is turned
on and should silence when the engine has started and the
engine's oil pressure rises above 15 psi (1.1 kglcrn'J.
'OIL PRESSURE GAUGE; THIS GAUGE IS GRADU·
ATEO IN POUNDS PER SQUARE INCH (PSI) AND IS
ILLUMINATED WHILE THE KEY SWITCH IS TURNED
ON. THE ENGlNE'S NORMAL OPERATING OIL
PRESSURE RANGES BETWEEN 30 - 60 psi
(2.1 - 4.2 kglem').
__-KI:Y S'WITI~H; PROVIDES
POWER ONLY TO THE
INSTRUMENT PANEL
CLUSTER.
PREHEAT PRESSED. ENERGIZES THE
ALTERNATOR'S EXCITER. THE FUEL LIFT PUMP, THE
FUEL SDLENOIO ON THE INJECTION PUMP. ANO THE
ENGINE'S GLOW PLUGS. IT BYPASSES THE ENGINE'S
OIL PRESSURE ALARM SWITCH. IN ADOITION. THIS
BUTTON ENERGIZES. THE START BUTTON.
~
: DC VOLTMETER;
INDICATES THE AMOUNT THE
BATIERY IS BEING CHARGED.
• !iHOULD SHOW 13V TO 14V.
. AUTOMATIC ALARM SYSTEM
~
' COOLANT TEMPERATURE ALARf,,; AN ALARM BUZZER HAS BEEN
]1. .•••••••• LIE WIT .
START BUTTON; WHEN PRESSED, ENERGIZES THE
STARTER'S SOLENOID WHICH CRANKS THE ENGINE.
THIS BUTTON WILL NOT OPERATE ELECTRICALLY
UNLESS THE PREHEAT BUTTON IS PRESSED AND HELD
AT THE SAME TIME.
'/.., SUPP D HTHEINSTRUMENT PANEL.IFTHE ENGINE'S COOLANT
REACHES 210' F (99·C),.THIS SWITCH WllLCeOSE SDUNOING THE ALARM
WHICHWILlEMIT A CONTINUOUS SIGNAL.
OIL PRESSURE AI.ARM; AN Oil PRESSURE ALARM SWITCH IS
lOCATEOPFF THEENGiNE'S Oil GALLERY. THIS SWITCH MONITORS
t~E5 E~~rp~~(g~ !~.~S~~C~;)~~~~~~T~M~?~~~~E~~6~~~~~~\fteLL
ALARM. IN THIS EVENT. THE ALARM WILL EMIT A PULSATING SIGNAL
~ WESTERBEKE
Engines & Generators
6

CAPTAIN CONTROL PANEL
DESCRIPTION·
This manually-operated control panel is equipped with a
KEY switch, an RPM gauge, PREHEKf and START but-
tons, an INSTRUMENT TEST button and three indicator
lamps, one for AL1ERNATOR DISCHARGE, one for low
OIL PRESSURE, and one for high ENGINE COOLANT
TEMPERATURE.
RPM GAUGE: REGISTERS REVOLUTIONS
PER MINUTE OF THE ENGINE AND CAN BE
RECALIBRATED FOR ACCURACY FROM
THE REAR OFTHE PANEL
OIL PRESSURE
ALARM
LIGHT
START BUTTON: WHEN·PRESSEO, ENERGIZES THE
STARTER'S SOLENO,ID WHICH CRANKS THE ENGINE. THIS
BUlTON WILL NOT OPERATE ELECTRICALLY UNLESS THE
PREHEAT BUTTON IS PRESSED.AND HELD ATTHE SAME
TIME.
The panel also includes an alann buzzer for low OIL
PRESSURE or high COOLANT 1EMPERATURE. The
RPM gauge is illuminated when the KEY switch js turned on
and reniains illuminated while the engine is in openition.
ALARM: THE ALARM WILL SOUND IFTHE ENGINE'S OIL PRESSURE FALLS
BELOW 5-10 psi (0.4-0.7 kg/em'). IN THIS EVENT, THEALliRM WILL EMIT A
PULSATING SIGNAL. THE ALARM WILL ALSO SOUND IF THE COOLANT
TEMPERATURE IN THE FRESHWATER COOLING CIRCUIT RISES TO·
210'F (99'C). IN THIS EVENT, THE ALARM WILL EMIT A CONTINUOUS SIGNAL.
NOTE: THE ALARM WILL SOUND WHEN THE KEY SWITCH IS TURNED ON. THIS
SOUNDING IS NORMAL. ONCE THE ENGINE STARTS AND THE ENGINE'S OIL
PRESSURE REACHES 15 psi M~1 k'g/em~, THE ALARM WILL SILENCE
TEST BUlTON: WHEN
PRESSED, TESTS THE
ALTERNATOR. THE OIL
PRESSURE, AND THE
COOLANTTEMPERA-
TURE CONTROL CIR-
CUITS. WHEN PRESSED.
THE ALTERNATOR, THE
OIL PRESSURE, AND
THE WATER TEMPERA-
TURE INDICATOR
LIGHTS ILLUMINATE IN
. ADDITION TO SOUND·
ING THE ALARM
BUZZER.
---~-- KEY SWITCH: PROVIDES
POWER ONLYTO THE
INSTRUMENT PANEL
CLUSTER.
BUTTON: WHEN PRESSED, ENERGIZES THE .
ALTERNATOR'S EXCITER, THE FUEL LIFT PUMP, THE FUEL .
SOLENOID ON THE INJECTION PUMP, AND THE ENGINE'S
GLOW PLUGS, AND BYPASSES THE ENGINE'S OIL PRES-
SURE ALARM SWITCH. IN ADDITION, THIS BUTTON ENER-
GIZES THE START BUTTON.
·"IIY'WESTERBEKE .
Engines··& Generators
7

PREPARATIONS FOR INITIAL START-UP
PRESTART INSPECTION
Before starting your engine for the first time or after a
prolonged layoff,
check the following items:
o Check the engine oilleve!. Add oil to maintain the level
at the high mark on the dipstick.
OThman the fuel supply, then check the fuel supply and
examine the fuel filter/water separator bowl for
contaminants.
o Check the transmission fluid leve!.
o Check the DC electrical system. Inspect wire connections
and battery cable connections. Make certain the positive
(+) battery cable is connected to the starter solenoid and
the negative (-) cable is connected to the engine ground
stud (this location is tagged).
o Check the coolant level in both the plastic recovery tank
and at the manifold.
NOTE: If the engine has not yet been filled with coolant,
refer to the COOLING SYSTEM section of this manual.
D Visually examine the engine. Look for loose or missing
parts, disconnected wires, and unattached hoses. Check
the threaded connections and engine attachment~.
D Make certain there is proper ventilation around the
engine. An ample supply is necessary for proper engine
perfonnance.
D Make sure the mounting installation is secure.
,
D Ensure the propeller shaft is securely attached to the
transmission.
D . Open the thru-hull and make certain raw water is primed
to the raw'water strainer.
TOP 'OIL FILTER
CHECK ENGINE
OIL LEVEL
LOW
.I. .
CHECK TRANSMISSION FLUIO.
CHECK COOLANT LEVEL
~ WESTERBEKE
Engines & Generators
8

STARTING/STOPPING PROCEDURE
CHECKLIST
Follow this check list each day before starting your engine.
D Visually inspect the engine for fuel, oil, or water leaks.
D Check the oil level (dipstick).
D Check the coolant level in the coolant recovery tank.
Periodically check the manifold coolant level.
D Check the transmission fluid level.
D Check your fuel supply.
D Look for clean fuel in the fuel filterlwater separator
transparent
bowl.
D Check for loose wires at the alternator and make sure its
mounting is secure.
D Check the starting batteries (weekly).
D Check drive belts for wear and proper tension (weekly).
D Check the raw water pump to make sure its mounting is
secure.
STARTING THE ENGINE
1. Put the transmission in neutral and advance the throttle.
2. Tum the· KEY to the ON position (2 o'ciock).
(The panel is energized, gauges are lit).
3. Depress the PREHEAT BUITON, hold for 5 to 15
seconds depending on how cold it is.
(The fuel lift pump is priming the engine and the preheat
is activated).
4. Continue pressing the PREHEAT BUTTON and press
the START BUTTON.
(The startmotor is cranking the engine).
5. Release the START BUTTON as the engine starts.
6. With the engine running, check the instruments for
proper
oil pressure and battery charging voltage. Also
check for overboatd discharge ofexhaust water. The
water temperature will rise slowly until the thermostat
opens. Do not engage the gear shift until the temperature
is ciose to normal.
NOTE: Never attempt to engage the starter while the
engine is running.
It is important to closely monitor the panel gauges.
become aware of the normal engine readings and take
immediate action if these readings start to vary.
If a "smart" regulator is part of the charging system,
allow about50 seconds for the RPM gauge to. activate.
NOTE: When starting:
A
VQltage drop will occur
when the preheat·switch
is depressed.
FAILURE TO START
If the engine fails to start when the start button is pressed for
5
seconds, wait for at least 30 seconds and repeat the starting
procedure. Make certain the transmission control is in the
neutral position..
Never
run the starter motor for more than 30 seconds. Ifthe
engine fails
to start. refer to the TROUBLESHOOTING·
CHART in this manual.
A CAUTION: Prolonged cranking intervals without the
engine starting can result in the engine exhaust system
filling with raw water. This may happen because the
pump is pumping raw water through the raw water
cooling system during cranking. This raw water can
enter the engine's cylinders by way of the exhaust
manifold once the exhaust system fills. Prevent this
from happening by closing the raw water supply
through-hull shut-off; draining the exhaust muffler, and
correcting.the cause of the ellcessive engine cranking.
Engine damage resulting from raw water entry is not a
warrantable issue; the owner/operator should keep this
in mind_
STOPPING PROCEDURES
To stop the engine, bring the throttle to an idle position and
place the transmission
in ·neutral. Allow the engine to idle for
a
few moments to stabilize the engine temperature. Then pull
the shut-off teelknob out
and allow the engine to stop fully.
Then push the shut-off tee!knob back in fully and shut-off
with
key.
NOTE: Units with the Optional Electric Shut-Off, just turn off
the key.
FAILURE TO STOP (Optional Electric Shut-Off)
In the unusual situation that the ·key switch fails to tum the
engine off
and it stays at a low idle, shut down can be
accomplished by manually working the shut off lever located
adjacent
to the throttle lever by the injection pump.
NOTE:' In such,cases the electric fuel sltut offsoleuoid .
maym,edto be thu:aded into the block an additional
y. - V. turn.
ENGINE STOP LEVER'
Engi,.,e$ & Generator$
9

ENGINE BREAK-IN PROCEDURE
DESCRIPTION
Altliough your engine has experienced a minimum of one
hour of test operations at the factory to make sure accurate
assembly procedures were followed and that the engine oper-
ated properly, a break-in time is required. The service life of
your
engine is dependent upon how the engine is operated
. and serviced during its initial 50 hours of use.
Breaking-in a new engine basically involves seating the pis-
ton rings to the cylinder walls. Excessive oil consumption
and
smoky operation indicate that the cylinder walls are
scored,
which is caused by overloading the engine during the
break-in period.
Your new engine requires approximately 50 hours of initial
conditioning operation to break in each moving part in order
to maximize the performance and service life ofthe engine.
Pelionn this conditioning carefully, keeping in mind the fol-
lowing:
1. Start the engine according to the STARTING PROCE-
DURE section. Run the engine at fast idle while checking
that all systems (raw water pump, oil pressure, battery
charging) are functioning.
2.
Allow the engine to warm up (preferably by running at
fast idle) until the water temperature gauge moves into
the 130 -140'F (55 -60'C) range.
3. While using the vessel, run the engine at various engine
speeds for the first 25 hours. Avoid prolonged pedods of
idling.
4. Avoid rapid .acceleration, especially with acold engine.
5. Use caution not to overload the engine. The presence ofa
grey or black exhaust and the inability ofthe engine to
reach its full rated speed are signs ofan overload.
,6. During the next 25 hours, the engine may be operated at
vlUying engine speeds, with short runs at full rated rpm.
Avoid prolonged idling during this break-in pedod.
CHECKLIST
D Moniior the control panel gauges.
D. Check for leaks of fuel and engine oil.
D Check for abnonnal noise such as knocking, friction,
vibration and blow-back sounds.
D Confirm exhaust smoke:
When the engine is cold -white smoke.
When the engine is wann -almost smokeless.
When ihe engine is overloaded - some black smoke and soot.
NOTE: See the TRANSMISSION section of this manual for
break-in information on your transmission.
Engines & Generators
10 .

WARNING LIGHTS, ALARMS & CIRCUIT BREAKER
ALTERNATOR WARNINGS
The Captain Control Panel indicates alternator low discharge
with a red warning light.
The Admiral Control
Panel uses a voltmeter to monitor the
performance
of the alternator.
--" - .-
ENGINE CIRCUIT BREAKER
The DC hamess on the engine is protected by an engine
mounted manual reset circuit breaker (20 amps DC).
Excessive current draw or electrical overload anywhere in
the instrument
panel wiring or engine wiring will cause the
breaker
to trip. fu this event DC power to the electric fuel
pump will tenninate. As fuel is consumed and runs out, the
engine
will slow and stop. If this breaker should trip, check
for
the cause ofhigh current draw and repair the problem.
Reset the breaker and re-start the engine.
COOLANT TEMPERATURE SWITCH
Acoolant temperature switch is located on the thermostat
housing; This switch will activate a continuous alarm if the
coolant's
operating temperature reaches approximately ~J!Ff
(99'Cl.
THIS COOLANT TEMPERATURE SENDOR
IS ONLY AVAILABLE WITH THE AOMIRAL
COI!TRQ~ PANEL .
WATER (COOLANT) ..
TEMPERATURE· ' ,.
SENDER ,-
LOW OIL PRESSURE ALARM SWITCH
A low oil pressure alarm switch is located on the engine
block. This switch's sensor monitors the engine's oil pres-
sure. Should the engine's oil pressure fall to 5 - 10 psi
(0.4-0.7 kg/em'), this switch will activate a pulsating
alarm.
OIL PRESSURE SWITCH
Eng/nes & Gen,erstors
11

MAINTENANCE SCHEDULE
In order to use this Maintenance Schedule, it will be necessary
to log your engine hours. Use your engine hourmeter or record
your engine hours by running time.
NOTE: Many of the following maintenance procedures are
simple but others are more difficult and may require the expert
knowledge
of a service mechanic.
A WARNING: Never attempt to perform any service
while the engine is running. Wear the proper safety
equipment such as goggles and gloves, and use the
correct tools for each job. Disconnect the battery
terminals when servicing any of the engine's DC
electrical equipment.
SCHEDULED
CHECK
HOURS OF OPERATION
MAINTENANCE DESCRIPTION
MAINTENANCE
EACH
DAY
50 100
250 . 500
750
1000 1250
Fuel Supply
D
Diesel No.2 rating of 45 cetane or higher.
Filter/Water Separator
D
Check for water and dirt in fuel (drain/replace filter
if necessary).
Engine 011 Level
D
Oil level should indicate between MAX. and LOW on
dipstick., .•
Coolant Level
D
Check at recovery tank; if empty, check at manifold.
Add coolant if neeii~d.
Transmission Fluid Level
D
Fluid level should indicate between MAX and LOW
on dipstick.
Drive Bells
D
Inspect for proper tension (3/8" to 112" deflection)
weekly
and adjust if needed. Check belt edges for wear.
Visuallnspeclion of Engine
D
NOTE: Keep engine surface clean. Din and
Check for fuel, oil and water leaks. Inspect wiring
oil will inhibit the engine's ability to remain and electrical connections. Keep bolts & nuts tight.
cool.
Check for loose belt tension.
Fuel Filter
0 D D D D D
Change at 50 hours then every 250 hours.
Starting Batteries
D
Check electrolyte levels every 50 operating hours
(and House Batteries) weekly and make sure connections are very tight. Clean off
excessive corrosion.
Engine 011 and Filter
D D D D D D D
Initial engine oil & filter change at 50 hours, then
change both every 100 hours.
Heat Exchanger Zinc Anode
0 D D D D D D
Inspect zinc anode, replace if needed. Clear the heat .
exchanger end of zinc anode debris.
Filler/Water Separator
D D D D D D
Change filter every 200 hours.
Exhaust System
0 D D D
Initial check at 50 hours, then every 250 hours.
Inspect for leaks. Check anti-siphon valve opera-
tion. Check the exhaust elbow for carbon and/or
corrosion buildup on inside passages; cl.ean and
replace as necessary. Check that alLconnections are
tight. Check castin'g integrity. "
Engine Hoses
0 D D D D D
Hose should be hard & tight. Replace if soft or
spongy. Check and tighten all hose clamps.
Throttle Transmission
D D D D
Check for loose fittings, cotter pins, etc.
Shut-Off Cables
Lubricate with WD-40 or equivalent.
Adjust Engine Idle Speed
D
Adjustto 1000 -1200 rpm
Raw Water Pump
D D D
Remove the pump cover and inspect the impeller,
gasket, cam and cover for wear. Check the bearings
and seals (the shaft can turn, but not wobble).
Lubricate when reassembling.
Inlet Fuel Filter
D D D D D
Replace.
(continued)
Engines & Generators
12

MAINTENANCE SCHEDULE
NOTE: Use the engine hourmeter gauge to log your engine hours of record your
engine hours by running time.
SCHEDULED
CHECK
HOURS OF OPERATION
MAINTENANCE
EACH MAINTENANCE DESCRIPTION
DAY 50 100 250 500 750
1000 1250
Raw Water Pump
D
Remove the pump from the engine. Disassemble
At 750 operating hours,
and inspect all components, replacing all worn
disassemble and inspect for
components as needed. Inspect the drive gear slot
overhaul.
for wear. Replace drive gear as needed.
Coolant System
D D
Drain, flush, and refill cooling system with the
appropriate antifreeze mix.
Electric Fuel Lilt Pump
D D D D D D
Periodically check the wiring Lonnections and
Inspect the fuel line connections.
'Fuel Injectors
D
Check and adjust Injection opening pressure and
spray condition. (see ENGINE ADJUSTMENTS).
'Starter Motor
D D
Gheck.sqlenoid and motor for corrosion. Remove
and lubricate. Clean and lubricate the starter motor
.
pinion drive.'
~1
'Preheat Circuit
D D
Check operation of preheat solenoid. Remove and
·clean glow plugs, check resistance (4-6 ohms).
Reinstall with anti-seize compound on threads.
'Engine Cylinder
D D
Check compression pressure and timing
Compression (see ENGINE ADJUSTMENTS).
'Adjustthe Valve Clearances
D D D
Adjust Valve Clearances, re-torque cylinder head
Re-torque Cylinder Head Boils
bolts.(see ENGINE ADJUSTMENTS).
'Heat Exchanger
D
Remove, have professionally cleaned and pressure
tested.
'Water Injected Exhaust
D D
Check casting Integrity every 500 hours of
Elbow
operation. Clean internal passage. Replace as
needed.
Engine Damper Plate.
D
Chattering at idle~ow rpm is an indication of
damper plate spring wear. Inspect and replace as
needed.
Lubricate Panel Key Switch
D
Lubricate at 50 hours, then at least once a season.
with II LDckeze"
Transmission Fluid
D
Initial change at 25 hours, then at least once a
season.
'WESTERBEKE recommends this service be performed by an authorized mechanic.
Engines & Generators
13

'FUEL SYSTEM
DIESEL FUEL
USE A DIESEL FUEL WITH A CETANE RATING OF #45 OR HIGHER.
(No. 2-D (SAE J313) diesel fuel according to AStM D975}.
FUEL FItTERS
The fuel injection pump and the fuel injectors are precisely
manufactnred and they must receive clean diesel fuel, free
from water and dirt. To ensure this flow ofclean fuel, the fuel
must pass through at least two fuel filters, afuel water
separator
and the engine's spin-on fuel filter. Visually inspect,
clean, and change these filters according to the maintenance
schedule in this manual.
FUEL WATER SEPARATOR
A primary fuel filter ofthe watef separating type must be
installed between the fuel tank and the engine to remove
water
and other contami)lants from the fuel before they can
be, carried to the fuel 'system on the engine. .
The
owner/operator is responsible for maldng certain the
fuel reaching the engine's injection equipment is free of
impurities. This process is accomplished hy installing and
maintaining a proper fuel between the
fuel tank and the gerierator/engine. a
10 micron (no'finer) filter be used.
ENGINE FUEL FILTER
Periodically check the fuel connections and the bowl for
leakage. Replace the filter element after the first 50 hours
then follow the MAINTENANCE SCHEDULE.
-Changing/cleaning the filter element
1. Shut offthe fuel supply.
2. Unscrew the retainer ring that holds the filter bowl to the
housing and allow the bowl to coine away from the
housing,
3. Remove and replace the filter element and clean the bowl.
4. Replace the sealing "0" ring and reassemble the bOWl
to the housing. Thread the retainer ring on carefully
,SO as not to cross 1bread. When retainer contacts the
"0" ring, tighten 1/4 - 112 turns by hand. Open the fuel,
ID!PPlY and run the engine to inspect for leaks.
LIGHTLY WIPE
WITH CLEAN FUEL
WHEN INSTALLING
THE NEW FUEL
FILTER CARTRIDGE
FUEL LIFT PUMP
TYPICAL
FUEL '
FILTER
(OWNER IIlSTALLED)
The fuel injection pump is the most important component
of the diesel engine, requiring the utmost caution in handling.
The fuel injection pump has been thoroughly bench-tested
and
the owner/operator is cautioned -not to attempt to service
it. If it requires servicing, remove it and take it to an
authorized fuel injection pump service facility. Do not
attempt
to disassembly and repair it.
The only adjustment the servicing mechanic should make to
the fuel injection pump is the adjustment for the engine idle
speed (see IDLESPEED ADJUSTMENT under ENGINE
ADJUSTMENTS). '
INLET FUEL
FILTER
FUEL LIFT PUMP
THE'D-RiNG n M"""'it
ONLY NEEDS TO
,. REPLACfD IFfT
SIGNS OF AGING.
FRESH FUEL
Periodically check the fuel connections to and out me pump
and make sure that no leakage is present and that the fittings
are tight and secure. The DC ground connection at one of the
pump's mounting bolts sholjld be clean and. well secUred by
the_mounting boltto ensure proper pump o'petation. " '
When energized thrn the preheat circuit, the;fuellift pump will
purge air from the fuel system and providea continuotis flow
of fuel as the engine is running.
INLET FUEL FILTER
,,1'0 ,nsure,cleanfuel-into the fuel pump, there is a small in-
line, fuel filter connected to the fuel lift pump elbow. This
filter should be replaced every 250 hours ofoperation or
once a season, which ever occurs first. .
"IIY' WESTERBEKE
~,?gines & Generators
14