
OPERATORS MANUAL 80N4/11 OT 4 -120N6/170T6 MARINE 01 L ENGINES PUBLICATION NO. 045139 FIRST EDITION JULY 2000 WESTERBEKE CORPORATION MYLES STANDISH IN
INTRODUCTION SERIAL NUMBER LOCATION The engine's model number and serial number are located on a nameplate mounted on the side of the engine&apo
ADMIRAL CONTROL PANEL DESCRIPTION This manually-operated control panel is equipped with a KEY switch and RPM gauge with an ELAPSED TIME meter which me
DIESEL FUEL, ENGINE OIL AND ENGINE COOLANT DIESEL FUEL Use fuel that meets the requirements or specification of Class 2-D (ASTM), and has a cetane ra
PREPARATIONS FOR INITIAL START-UP PRESTART INSPECTION Before starting your engine for the first time or after a pro-longed layoff, check the followi
STARTING/STOPPING PROCEDURE THE STARTING SYSTEM These marine diesel engine have l2V DC electric starters. The start circuitry is designed so that the
WARNING LIGHTS, ALARMS & CIRCUIT BREAKER ALTERNATOR WARNINGS The Admiral Control Panel uses a voltmeter to monitor the performance of the alternat
ENGINE BREAK-IN PROCEDURE DESCRIPTION Although your engine has experienced a minimum of one hour of test operations at the factory to make sure accura
THE DAILY ROUTINE CHECK LIST Each day before starting your engine, take a few moments to run this check list: o Visually inspect the engine for fuel,
MAINTENANCE SCHEDULE In order to use this Maintenance Schedule, it will be neces-sary to log your engine hours. Use your engine hounneter or record
MAINTENANCE SCHEDULE NOTE: Use the engine hourmeter gauge to log your engine hours or record your engine hours by running time. SCHEDULED CHECK HOURS
A WARNING Exhaust gasses contain Carbon Monoxide. an odorless and colorless gas. Carbon Monoxide is poisonous and can cause unconsciousness and death.
COOLING SYSTEM DESCRIPTION Westerbeke marine diesel engines are designed and equipped for fresh water cooling. Heat produced in the engine by combusti
COOLING SYSTEM Refilling the Coolant After closing the engine block drain, pour clean, premixed coolant into the manifold and when the coolant is visi
COOLING SYSTEM RAW WATER COOLING CIRCUIT The raw water flow is created by a positive displacement impeller pump. This pump draws water directly fro
COOLING SYSTEM HEAT EXCHANGER The heat exchanger is a copper cylinder which encloses a large number of small copper tubes. Raw water is pumped throug
COOLING SYSTEM Raw Water Intake Strainer NOTE: Always install the strainer at or below the waterline so the strainer will always be self-priming. A cl
FUEL SYSTEM DIESEL FUEL Use No.2 diesel fuel with a cetane rating of 45 or higher. Do not use kerosene or home heating fuel. FUEL WATER SEPARATOR A pr
FUEL SYSTEM FUEL FEED PUMP STRAINER An additional fuel screen is located in the feed pump. This screen (strainer) is removed for cleaning by releas
ENGINE LUBRICATING OIL DESCRIPTION The lubricating system is a pressure feeding system using an oil pump. The engine oil is drawn from the oil sump b
REMOTE OIL FILTER (OPTIONAL) INSTALLATION This popular accessory is used to relocate the engine's oil fil-ter from the engine to a more convenien
WATER HEATER CONNECTION (OPTIONAL) As an accessory, WESTERBEKE wiJI provide a connector that directs the engines hot water (coolant) flow to heat the
SAFETY INSTRUCTIONS INTRODUCTION Read this safety manual carefully. Most accidents are caused by failure to follow fundamental rules and precautions.
DC ELECTRICAL SYSTEM ALTERNATOR The charging system consists of a DC belt driven alternator with a voltage regulator, an engine DC wiring harness, a m
DC ELECTRICAL SYSTEM 7. Now check the voltage between the alternator output ter-minal (B+) and ground. If the circuit is good, the voltage at the alt
GLOW PLUGS DESCRIPTION The glow plugs are wired through the preheat solenoid. When PREHEAT is pressed at the control panel this solenoid should "
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ENGINE TROUBLESHOOTING The following troubleshooting table describes certain problems relating to engine service, the probable causes of these prob-le
ENGINE TROUBLESHOOTING Problem Probable Cause Verification/Remedy Engine overheats. 1. Raw water not circulating. 1. Raw water pump failure. Check imp
TACHOMETER TACHOMETER/HOUR METER The tachometerlhour meter used in propulsion engine instru-ment panels contains two separate electrical circuits with
ENGINE ADJUSTMENTS DRIVE BELT ADJUSTMENT Proper inspection, service and maintenance of the drive belts is important for the efficient operation of you
ENGINE ADJUSTMENTS NOTE: WESTERBEKE recommends that the following engine adjust-ments be performed by a competent engine mechanic. The information bel
SAFETY INSTRUCTIONS ACCIDENTAL STARTING A WARNING: Accidental starting can cause injury or death! • Disconnect the battery cables before servicing th
ENGINE ADJUSTMENTS NOTE: WESTERBEKE recommends that the following engine adjust-ments be performed by a competent engine mechanic. The information be
ENGINE ADJUSTMENTS NOTE: WESTERBEKE recommends that the following engine adjust-ments be peiformed by a competent engine mechanic. The information be
HURTH TRANSMISSIONS SHIPMENT For safety reasons, the transmission is not filled with trans-mission fluid during shipment and the selector lever is tem
HURTH TRANSMISSIONS CHANGING THE TRANSMISSION FLUID ACTUATING LEVER 16mm (8") SCREW Filter Element O-RINGS MODEL 450 FILTER ELEMENT The Hurth tr
HURTH TRANSMISSIONS CABLE CONNECTIONS . The transmission is suitable for a single lever gear shift. Upon loosening the retaining screw, the actuating
BORG WARNER VELVET DRIVE TRANSMISSION OIL COOLER SHIPMENT For safety reasons, the transmission is not filled with trans-mission fluid during shipment
BORG WARNER VELVET DRIVE TRANSMISSION FORWARD NEUTRAL REVERSE TRANSMISSION AC11JATING LEVER POSITIONS DAILY OPERATION o Check the transmission fluid.
BORG WARNER VELVET DRIVE TRANSMISSION MAINTENANCE Transmission maintenance is minimal. Keep the exterior housing clean, check the fluid level as part
CONTROL CABLES TRANSMISSION TROUBLESHOOTING OIL COOLERS The majority of transmission difficulties arise as a result of improper clutch adjustments (ma
TRANSMISSION TROUBLESHOOTING Problem Probable Cause Chattering transmission noise, 1. The engine or propeller generates torsional mainly at low engine
SAFETY INSTRUCTIONS • Do not wear loose clothing or jewelry when servicing equipment; avoid wearing loose jackets. shirts, sleeves. rings. necklaces
LAY-UP & RECOMMISSIONING GENERAL Many owners rely on their boatyards to prepare their craft, including engines and generators, for lay-up during
LAY-UP & RECOMMISSIONING Starter Motor Lubrication and cleaning of the starter drive pinion is advis-able, if access to the starter permits its ea
METRIC CONVERSIONS INCHES TO MILLIMETERS MILLIMETERS TO INCHES Inches mm Inches mm mm Inches mm Inches 1 25.40 15 381.00 1 0.0394 15 0.5906 2 50.8
STANDARD AND METRIC CONVERSION DATA LENGTH-DISTANCE Inches (in) x 25.4 = Millimeters (mm) x .0394 = Inches Feet (ft) x .305 = Meters (m) x 3.281 = Fee
80N4 SPECIFICATIONS Engine Type Aspiration Govemor Bore & Stroke Piston Displacement Firing Order Direction of Rotation Engine Torque Compression
110T 4 SPECIFICATIONS Engine Type Aspiration Govemor Bore & Stroke Piston Displacement Firing Order Direction of Rotation Engine Torque (max.) Com
120N6 SPECIFICATIONS Engine Type Aspiration Governor Bore & Stroke Piston Displacement Firing Order Direction of Rotation Engine Torque Compressio
170T6 SPECIFICATIONS Engine Type Aspiration Govemor Bore & Stroke Piston Displacement Firing Order Direction of Rotation Engine Torque (max.) Comp
SUGGESTED SPARE PARTS WESTERBEKE MARINE DIESEL ENGINES CONTACT YOUR WESTERBEKE DEALER FOR ADDITIONAL SUGGESTIONS AND INFORMATION , i TRANSMISSION FIL
INSTALLATION When installing WESTERBEKE engines and generators it is important that strict attention be paid to the following information: CODES AND R
Engines & Generators 1041WM/DW612000
TABLE OF CONTENTS Parts Identification ... 2 W"" 0" IFing lagrams ... ; ...
PARTS IDENTIFICATION MODEL 110T4 ILLUSTRATED COVER FRONT RAW WATER DC ALTERNATOR OIL DRAIN HOSE LEFT SIDE CONNECTION SIPHON BREAK TURBOCHARGER AIR INT
INTRODUCTION These high perfonnance marine engines are products of WESTERBEKE's long years of experience and advanced technology. We take great p
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