Westerbeke 26 GX User manual

TECHNICAL MANUAL
WESTERBEKE CORPORATION
26 GAND26 GX
MARINE GASOLINE ENGINES
Publication # 037425
Edition Two
JANUARY, 1993
~r .... rWESTERBEKE
WESTERBEKECORPO~TION
4 MYLES STANDISHINDUSTRIAL PARK
150
JOHN HANCOCKROAD, TAUNTON, MA 02780-7319

TECHNICAL MANUAL
WESTERBEKE CORPORATION
26 GAND26 GX
MARINE GASOLINE ENGINES
Publication # 037425
Edition Two
JANUARY, 1993
~r .... rWESTERBEKE
WESTERBEKECORPO~TION
4 MYLES STANDISHINDUSTRIAL PARK
150
JOHN HANCOCKROAD, TAUNTON, MA 02780-7319

TABLE OF CONTENTS
Section..........................................................................page
W
26G and W 26GX MARINE GASOLINE
ENGINES GENERAL SPECiFiCATIONS ......................... 31
W 26G and W 26GX SYSTEM SPECIFICATIONS ........... 32
W 26G and W 26GX MARINE GASOLINE
ENGINES SERVICE SPECIFICATIONS .......................... 36
ENGINE TUNE-UP SPECIFICATIONS ............................ 42
TIGHTENING TORQUES REQUIREMENTS ................... 43
TABLE OF STANDARD HARDWARE
TIGHTENING TORQUES ................................................. 45
ENGINE OVERHAUL ........•.........................••.................... 46
PREPARATIONS .•....••...................................................... 47
ENGINE DISASSEMBLY .................................................. 48
. REMOVING THE CYLINDER HEAD
FROM THE CYLINDER BLOCK ....................................... 52
CYLINDER HEAD DISASSEMBLY ................................... 53
CYLINDER BLOCK DiSASSEMBLy ................................ 56
SPECIAL SERVICE TOOLS ............................................. 62
CYLINDER HEAD AND ENGINE BLOCK
INSPECTION AND REPAIR ............................................. 65
1 Westerbeke Engines

Westerbeke Engines
TABLE OF CONTENTS
(CONTINUED)
Section ......................................................................... page
SUBASSEMBLY INSPECTION, REPAIR,
AND ASSEMBLY ...............................................................88
ENGINE ASSEMBLy.......................................................112
CYLINDER BLOCK ASSEMBLY .....................................113
CYLINDER HEAD ASSEMBLY .......................................120
BOLTING THE CYLINDER HEAD
TO THE CYLINDER BLOCK ...........................................124
TIMING BELT ASSEMBLy.............................................. 125
ADJUSTING VALVE CLEARANCES...............................129
LUBRICATING SYSTEM .................................................133
COOLING SYSTEM ........................................................137
CARBURETOR AND FUEL SYSTEM.............................. 14D
DC ELECTRICAL SYSTEM .............................................144
DC WIRING DIAGRAM #36037 ....................... 145 and 146
HBW TRANSMiSSiONS.................................................. 151
BW-7TRANSMISSION ...................................................160
LAY-UP AND RECOMMISSIONING ...............................163
SPARE PARTS LiST........................................................167
INDEX ..............................................................................168
2

Top Engine Oil Fill
Sea Water
Pump
W 200 and W 26GX Marine Gasoline Engines
Special Note:
Ignition Coil
450 Exhaust Elbow
DC Battery Ground
Connection
Transmission
Dipstick and Fill
Please note that the W
26GX Gasoline Engine is exactly likethe W 26G Gasoline Engine
except for its engine mounts. The installation mounts forthe W
26G engine are rubber
insulated, whereas the W
26GX engine has solid mounts. The reason for this difference
is that the W 26GX engine was designed
to be a replacement engine for the Universal
Atomic Four Gasoline Engine. Please keep in mind as you read this manual that the
specifications forthe W
26G engine are exactlythe same forthe W 26GX engine except
forthe engine mounts. Also notethatthelength
of each enginewill be different depend-
ing upon the type
of transmission the engine comes with. Find out the exact length of
your engine.
3 Westerbeke Engines

W 26G and W 26GX Marine Gasoline Engines
Electric Choke
Distributor
Fuel lift: Pump
Zinc Anode
Heat Exchanger
Transmission Lube Oil Filter
Water Temperature Alarm Switch
Special Note:
Air Intake
Flame Arrestor
Throttle Cable
Connection
DC Alternator
Oil Pressure
Sender
Oil Pressure
Alarm Switch
Lube Oil Drain Hose
Please notethatthe W 26GX Gasoline Engine is exactly likethe W26G Gasoline Engine
except
for its engine mounts. The installation mounts forthe W26G engine are rubber
insulated, whereas
the W26GX engine has solid mounts. The reason forthis difference
is that the W 26GX engine was designed to be a replacement engine for the Universal
Atomic Four Gasoline Engine. Please keep in mind as you read this manual that the
specifications forthe W
26G engine are exactlythe same for the W26GX engine except
fortheengine mounts. Also notethatthelength
of each enginewill be differentdepend-
ing upon
the type of transmission the engine comes with. Find outthe exact length of
your engine.
Westerbeke Engines 4

IMPORTANT
PRODUCT SOFTWARE DISCLAIMER
Productsoftware of all kinds, such as brochures, drawings, technical data, operator'sandworkshopmanuals,
parts listsand parts price lists, and other information, instructions and specifications provided from sources
other than Westerbeke, is not within Westerbeke's control and, accordingly, is provided to Westerbeke
customers only as a courtesy and service. Westerbeke cannot be responsible
for the content of such
software, makes
no warranties or representations with respect thereto, including the accuracy,
timeliness
or completeness thereof, and will in no event be liable for any type of damages or injury
incurred in connection with, or arising out of, the furnishing or use of such software.
Forexample, componentsand subassembliesincorporated in Westerbeke's productsand supplied byothers
(such as engine blocks, fuel systems and components, transmissions, electrical components, pumps and
other products) are generally supported by their manufacturers with their own software, and Westerbeke
must depend on such software for the design ofWesterbeke's own product software. Such software may
be outdated and nolongeraccurate. Routinechanges madebyWesterbeke'ssuppliers, ofwhichWesterbeke
rarely has notice in advance, are frequently not reflected in the supplier's software until after such changes
take place.
Westerbeke customers should also keep in mind the time span between printings of Westerbeke product
software, and the unavoidable existence of earlier, non-current Westerbeke software editions in the field.
Additionally, mostWesterbeke products include customer-requested special features that frequently
do not
include complete documentation. .
In summation, product software provided with Westerbeke products, whether from Westerbeke or other
suppliers, mustnotand cannotbe relied upon exclusivelyasthedefinitiveauthorityontherespective product.
Itnot onlymakes good sense butis imperativethatappropriate representatives ofWesterbeke or the supplier
in question be consulted to determine the accuracy and currency
of the product software being consulted
bythe customer.
Special Note:
Please note that the W 26GX Gasoline Engine is exactlylikethe W 26G Gasoline Engine
except
for its engine mounts. The installation mounts for the W 26G engineare rubber
insulated, whereas
the W 26GX engine has solid mounts. The reason for this difference
is
that the W 26GX engine was deSigned to be a replacement engine for the Universal
Atomic Four Gasoline Engine. Please keep in mind as you read this manual that the
specifications for the W 26G engine are exactly the same for the W 26GX engine except
for the engine mounts. Also note that the length of each engine will be different
depending
upon the type of transmission the engine comes with. Find out the exact
length
of your engine.
5 Westerbeke Engines

GENERAL
Introduction
This manual is a general guide to the installation, start-up, operation and maintenance of your Westerbeke
marine gasoline engine. The information contained
in this manual isvital to yourengine's dependable, long
term operation.
A. Read it.
B. Keep it in a safe, dry place.
C. Keep it handyfor reference at all times.
Understanding the Gasoline Propulsion Engine
The marine gasoline propulsion engine is in many ways similar to a gasoline automobile engine. The
cylindersarevertical in-line, and the engine'scylinderhead has an overhead camshaftwhich is chain-driven.
The engine utilizes a solid-state distributorwhich
is horizontally mounted and camshaft-driven. The engine
incorporatesa pressure type lubrication system, and afresh water-cooled engine blockwhich is thermostat
-controlled. To a large degree, the marine gasoline engine requires the same preventive maintenance that
is required
of a gasolineautomobile engine. The most importantfactors to the engine's longevityare proper
ventilation, maintenance
of the fuel system, ignition system, and thefresh water cooling system.
Ordering Parts
Whenever replacement parts are needed, always provide the engine's model and serial number, and
transmission number as they appear on the black and silver name plate located on the engine's exhaust
manifold. You must provide us with this information so
we may properly identify your engine. In addition,
include a complete part description and part number for each part needed (see the separately furnished
Parts List). Also, be sure
to insist uponWesterbekefactory packaged parts, because "will fit" or generic parts
are frequently not made
to the same specifications as original equipment.
Note that component locations
in the manual are referenced from the front of the engine which is the
pulley/drive belt end. (The flywheel/transmission end
is the rear end.) Leftand right sides are determined by
the engine; imagine straddling theengine and facing in the same direction asthefront of the engine: the left
side is at your left, the right side at your right.
Westerbeke engines are thoroughly checked and given a final run under various load conditions before
leaving the factory. Test running the engine ensures dependable operation, long service, and a satisfied
owner.
Care at the factory during assembly and thorough testing have resulted in a Westerbeke gasoline engine
capable
of manythousands ofhours ofdependableservice. However,whatthe manufacturercannotcontrol
is the treatment the engine receives
in the field. That part is up to the owner/operator.
Westerbeke Engines 6

W 26G and W 26GX MARINE GASOUNE ENGINES
GENERAl SPECIFICATIONS
EngineType
Combustion Chamber
Bore & Stroke
Piston Displacement
Firing Order
Direction of Rotation
Maximum Torque (at 2500 rpm)
Compression Ratio
Compression Pressure
(Umit
of difference between cylinders)
Valve Timing
Valve Seat Angle
Valve Oearance
(engine cold)
Engine Speed
Dimensions
Weight
Fuel Consumption
Inclination
Gasoline, four-cycle, three-cylinder, fresh water-cooled
Vertical, in-line overhead valve mechanism
(30 hp at 3200 rpm maximum).
Multi-spheretype
2.99 x 2.87 inches (76 x 73 mm)
60.6 cubic inches (0.993 liters)
1-2-3
Oockwise, when viewed from thefront
47 Ib-ft (6.5 kg-m)
9.5:1
1
n psi (12.5 kg/cm
2) at350 rpm
(28 psi [2.0 kg/cm2
])
Intake Opens 19° BTDC
Intake Closes 51° ABDC
Exhaust Opens51° BBDC
Exhaust Ooses 1 go ATDC
Intake
45°
Exhaust 45°
Intake 0.0098 inches (0.25 mm)
Exhaust 0.0098 inches (0.25 mm)
Idle Speed 700 -900 rpm
CruiSing rpm 2500 -3000
Maximum No Load (Neutral) rpm 4000
Height: (total) 22.88 inches (581.15 mm)
Height: (from base mount) 18.75 inches (476.25 mm)
Width: 18.69 inches (474.73 mm)
*Length: 27.75 inches (704.85 mm)
*(Length can varydepending upon transmission length)
2751bs (124.74 kgs)
1.5
gph (5.68 Iph) running at 3200 rpm (approximate)
Continuous 15°
Temporary20° (not to exceed 20 min.)
31 Westerbeke Engines

W 26G and W 26GX SYSTEM SPECIFICATIONS
INTAKE SYSTEM
Carburetor (STD type)
IGNITION SYSTEM
General
Distributor
Spark Plug Thread Size
Spark Plug Type
FUEL SYSTEM
General
Fuel
Uft Pump
Fuel Screens (on engine)
Air cleaner
Air Flow (engine combustion)
COOLING SYSTEM
General
Operating Temperature
Fresh Water Pump
Sea Water Pump
Westerbeke Engines
Down draft type, single barrel with U.S.C.G.
approved flame arrester.
Battery ignition, 12-Volts, negative ground,
distributorwith points, ignition coil and spark
plugs.
Solid state typewith signal generatorand igniter
14 mm x 1.25 pitch
Westerbeke part Number
33805
(f.Jways identifythe engine model when ordering parts.)
Conventional carburetor typewith fuel lift
pump
Regular or unleaded gasoline with an octane rating
of 89 or better.
12-Volt DC; lift capacity5 ft (1.5 m)
Reusable screen type (one in Carburetor and one
in electric fuel pump).
Metal screen type -cleanable
64 cfm (0.906 cmm) at 3200 rpm
Fresh water-cooled block,
thermostatically-controlled
with heat exchanger.
170 -190
0 F (78 -
88
0
C)
Centrifugal type, metal impeller, belt-driven
Positive displacement, rubber impeller, belt-driven.
32

W 26G and W 26GX SYSTEM SPECIFICATIONS
Sea Water Flow, at 3200 rpm
(measured before discharging
into exhaust elbow)
System Capacity (fresh water)
LUBRICATION SYSTEM
General
Oil Filter
Sump Capacity (not including filter)
Operating Oil Pressure (engine hot)
Oil Grade
ELECTRICAL SYSTEM
Starting Battery
Battery Capacity
Alternator
Starter
DC No-Load Current
DC Cranking Current
6.5 -6.6
gpm (24.6 -24.9 Ipm)
5.7 qts (5.39 liters)
Pressure type by Trochoid pump,
chain-ciriven through balance shaft.
Full flow, paper element, spin-on type
3.0 U.S. qts (2.9 liters)
50 -75 psi (3.5 -5.2 kg/cm2)
API specification of SC, SD, SE, or SF
12-Volt, 26 A-H, (-) negative ground
(recommended) (35 A-H in cold areas)
90
-125 (Ampere-Hours)
Belt driven, 12 Volt, 50 Amps.
12-Volt, 1.2KW, reduction type,
solenoid-mounted
90 Amp (max.) at 11.5 Volts.
175 -200 Amps (engine cold)
33
Westerbeke Engines

W 26G and W 26GX SYSTEM SPECIFICA nONS
TRANSMISSION SPECIFICATIONS
HBW 100
Standard Gear Ratio
Direction ofRotation
Lubricant
Sump Capacity
HBW 100-2 (W 26G 1.79:1 Ratio)
Propeller Recommendations
(approximate)
(using
HBW 100-2 transmission)
HBW 100-1.5 (W 26GX 1.48:1 Ratio)
Propeller Recommendations
(approximate)
(using
HBW 100-1.5 transmission)
BW-7
Standard Gear Ratio
Direction of Rotation
Lubricant
Sump Capacity
Propeller Recommendations
(approximate)
(using
BW-7 transmission)
Westerbeke Engines
W26G
W26GX
1.79:1
1.48:1
Right handed -standard transmission
Automatic Transmission Auid
(ATF)
Type A or Dexron II
0.3.7 U.S. qts (0.35 liters) approximate
15 0 x 9 P -2 blade or 15 Dx 7 P -3 blade
Propeller should allow the engine to reach
its full rated RPM (3200 + 000 - 100) at full open
throttle while underway.
13 Dx 10 P - 2 blade or 13 Dx 8 P- 3 blade
Propeller should allow the engine to reach
its
full rated RPM (3200 + 000 - 100) at full open
throttle while underway.
2.05:1
Right handed -standard transmission
SAE 20W/20 or SAE 30
DO NOT MIX SAE GRADES I
DO NOT USE MULTI-GRADE OILS I
1 U.S. qt (1 liter) approximate
16 Dx 10 P -2 blade or 16 Dx 8 P- 3 blade
Propeller should allowthe engine
to reach
its full rated
RPM (3200 + 000 - 100) at full open
throttle while underway.
34

W 26G and W 26GX SYSTEM SPECIFICATIONS
TUNE-UP SPECIFICATIONS
Spark Plug Gap
Timing
0.028 -0.036 inches (0.7 -0.9 mm)
10° ± 2° BTDC at idle (900 rpm)
35
Westerbeke Engines

W 26G and W 26GX
ENGINE SERVICE SPECIFICATIONS
Cylinder Head
Lower gasket surface distortion -inches (mm)
Grinding tolerance -inches (mm)
Manifold gasket surface distortion -inches (mm)
Valve seat width (Intake and Exhaust)
Valve seat angle
Valve seat recession allowable limit -inches (mm)
Valve Guide Bushing
Valve stem-to-bushing clearance -inches (mm)
Intake
Exhaust
Valves
Valve seat width (Intake and Exhaust) -inches (mm)
Valve head stock thickness -inches (mm)
Intake
Exhaust
Valve stem outerdiameter -inches (mm)
Intake
Exhaust
Westerbeke Engines
36
Specified VaJue
0.0118 (0.3 mm)
0.039 - 0.071
(1.0 -1.8 mm)
0.0016 -0.0028
(0.040 -0.070 mm)
0.0018 -0.0030
(0.045 -0.075 mm)
0.039 - 0.071
(1.0 -1.8 mm)
0.035 -0.059
(0.9 -1.5 mm)
0.047 - 0.071
(1.2 -1.8 mm)
0.2734 -0.2740
(6.945 -6.960 mm)
0.2732 -0.2738
(6.940 -6.955 mm)
Allowable Umit
0.0039 (0.10 mm)
4.949 (total height)
(125.50 mm)
0.0039 (0.10 mm)
0.020 (0.5 mm)
0.0035 (0.09 mm)
0.0039
(0.10 mm)
0.031 (0.8 mm)
0.039 (1.0 mm)
0.2724 (6.920 mm)
0.2720 (6.910 mm)

Valve Spring
Free length -inches (mm)
Length as installed -inches (mm)
Out-of-squareness -inches (mm)
Valve Rocker Shaft and Rocker Arm
Rocker shaft-to-rockerarm clearance -inches (mm)
Cylinder Block
Top gasket surface distortion -inches (mm)
Cylinder
bore wear -inches (mm)
Cylinder
bore out-of-roundness, taper
Piston, Piston Pin, and Piston Ring
Piston-to-cylinder clearance -inches (mm)
Piston ring end
gap -inches (mm)
Compression
No.1 and No.2
Oil
Piston ring side clearance -inches (mm)
Compression
NO.1
Compression No.2
Piston outerdiameter -inches (mm)
Piston-to-piston pin clearance -inches (mm)
37
1.7047 (43.3 mm)
1.3740 (34.9 mm)
0.0006 -0.0024
(0.16 -0.060 mm)
0.0014 -0.0022
(0.035 -0.055 mm)
0.0079 -0.0157
(0.2 -0.4 mm)
0.0079 -0.0315
(0.2 -0.8 mm)
0.0012 -0.0026
(0.03 -0.07 mm)
0.0008 -0.0024
(0.02 -0.06 mm)
2.9903 -2.9915
(75.955 -75.985 mm)
0.0002 -0.0004
(0.005 -0.011 mm)
1.6535 (42.0 mm)
0.059 (1.5 mm)
0.0035 (0.09 mm)
0.0020 (0.05 mm)
0.0039 (0.10 mm)
0.0031 (0.08 mm)
0.0039 (0.10 mm)
0.0276 (0.70 mm)
0.0433 (1.10 mm)
0.0047 (0.12 mm)
0.0047 (0.12 mm)
0.0008 (0.02 mm)
Westerbeke Engines

Specified Value Allowable Limit
Connecting Rod
Bend of rod per3.94 inches (100 mm) 0.0020 (0.05 mm)
Twist
of rod per3.94 inches (100 mm) 0.0020 (0.05 mm)
Connecting rod bearing oil clearance -inches (mm)
0.0008 -0.0017 0.0028 (0.07 mm)
(0.020 -0.044 mm)
Big end thrust clearance -inches (mm) 0.0059 -0.0087 0.0118 (0.30 mm)
(0.150 -0.220 mm)
Crankshaft
Crankshaft run-out -inches (mm) 0.0012 (0.03 mm)
Uneven wear
of journal section -inches (mm) 0.0008 (0.02 mm)
Crankshaft bearing oil clearance -inches (mm) 0.0008 -0.0017 0.0028 (0.07 mm)
(0.020 -0.044 mm)
Side clearance -inches (mm) 0.0004 -0.0063 0.0118 (0.30 mm)
(0.010 -0.160 mm)
Balance Shaft
Thrust clearance -inches (mm) 0.0012 -0.0051 0.0039 (0.10 mm)
(0.03 -0.13 mm)
Balance shaft bearing oil clearance -inches (mm) 0.0010 -0.0026 0.0039 (0.10 mm)
(0.025 -0.066 mm)
Camshaft
Thrust clearance -inches (mm) 0.0402 -0.0496 0.0551 (1.40 mm)
(1.020 -1.260 mm)
Cam lobe height -inches (mm) 1.5743 -1.5822 1.5630 (39.70 mm)
(39.987 -40.187 mm)
Camshaft journal uneven
wear -inches (mm) 0.0016 (0.04 mm)
Camshaft bearing oil clearance -inches (mm)
(front) 0.0016 -0.0035 0.0055 (0.14 mm)
(0.04 -0.09 mm)
(center) 0.0035 -0.0055 0.0075 (0.19 mm)
(0.09 -0.14 mm)
(rear) 0.0024 -0.0043 0.0063 (0.16 mm)
(0.06 - 0.11 mm)
Westerbeke
Engines
38

Timing Belt Pulley
Pulley outer diameter-inches (mm)
Camshaft pulley
Crankshaft pulley
Manifold
Intake manifold gasket surface
distortion -inches (mm)
Exhaust manifold gasket surface
distortion -inches (mm)
Flywheel
Flywheel run-out -inches (mm)
Electrical System
Starting battery (recommended)
Starter
No-load performance
Alternator
No-load performance
(Engine speed at 2000 rpm)
Regulated voltage
Current
Load performance
(Engine speed at 2000 rpm)
Regulated voltage
Brush length -inches (mm)
Stator resistance -0 (Ohms)
Rotor resistance -0 (Ohms)
Specified Value
4.7189 -4.7260
(119.86 -120.40 mm)
2.3331 -2.3370
(59.26 -59.36 mm)
12-Volt, 30 A-H
12-Volt,
1.2'r<'N, reduction type,
solenoid-mounted.
Less than 50 Amp at
11 Volts
13.9 -
15.1 Volts
Less than 10 Amps
13.9 -15.1'r<'N
Less than 10
2.90
39
Allowable Limit
4.7165 (119.80 mm)
2.3307 (59.20 mm)
0.0039 (0.10 mm)
0.0039 (0.10 mm)
0.0039 (0.10 mm)
(45 A-H in cold areas)
Westerbeke Engines

Ignition System
Distributor
Ignition coil
Condenser capacity -uF (microfarads)
Contact point clearance -inch (mm)
Dwell angle -degrees
Primary coil resistance
Secondary coil resistance
Resistor resistance
Specified Value
0.27
0.016 -0.020
(0.4 -0.5 mm)
58
-66
Ohms 0.98 ± 0.1
Ohms 17.5 ± 2.6
Ohms 1.92 ± 0.2
Lubricating System
General Pressure type with Trochoid pump,
chain-driven through balance shaft.
Allowable Limit
Oil filter Full flow, paper element, spin-cartridge.
Oil sump capacity (filter not included) -qts Oiters)
Oil pressure at 1800 rpm engine speed
(engine hot)
Oil pump
Oil pump chain
deflection -inches (mm)
Shaft-to-body clearance -inches (mm)
Tip clearance (inner to outer
rotor) -inches (mm)
Side clearance (rotor end float)
Body clearance (outer rotor-
to-body) -inches (mm)
Westerbeke
Engines
40
3.0 (2.9 liters)
50 -70 psi
3.5 -4.9 kg/cm2
0.008 -0.0033
(0.045 -0.085 mm)
0.0059 (0.15 mm)
0.0012 -0.0035
(0.03 -0.09 mm)
0.0039 -0.0063
(0.10 -0.16 mm)
0.275 (7 mm)
0.0039 (0.10 mm)
0.0098 (0.25 mm)
0.0079 (0.20 mm)
0.0118 (0.30 mm)

Lubricant:
API specification of SC or SD, grade in accordance with thermal environment (see table).
Ie') -30 -20
-10
o 10 20
30 40
50
Temperature
IF' )
-20
o
20 40 60 80 100 120
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::,sw"',,<at ')l> <Z/}() ?':i'\::ZOW,;",20\::Y ,.""." \\2> "'<"'!22":"':':':'2':"22"'El2!!tl2i£I2~
Engine oil
<:(?:< :'·', .. ·,i<):i:.}·,·/'·': :,·"·"·,·:·",,,:·,·:,:·:,,,,':::«.:::'tOW:':;:':'30t\::)::{:': :,:,::':'}:.':"::::.}:':.:':',:,:.:,:)){:">
<! :, .. ~:SS::}",7·;pc]Tillfr77
Specified Value Allowable Limit
Cooling System
General Fresh water-cooled block, thermostatically-controlled,
with sea water heat exchanger system
Operating Temperature 0 F e C) 130 - 150 (55 - 66)
Fresh water pump Centrifugal type, metal impeller, belt-driven
Sea water pump Positive displacement, rubber impeller, belt-driven
Sea waterflow at 1800 rpm
(measured at discharge point
from heat exchanger) 4.75 -5.0 gpm
System capacity (fresh water) -qts (liters)
Fuel System
Fuel
Carburetor
Governor
5.7 (5.39 liters)
Unleaded or leaded gasoline
(minimum octane rating of 89)
Single-barrel, down-draft
Mechanical, belt-driven
Lift pump 12-Volt electric; lift capacity 6 feet
(1.8 meters)
Air cleaner
Fuel filter
Engine fuel consumption at 3200
rpm (approximat)e U.S gph (lph)
Metal screen type, cleanable
Reusable metal screen
1.5 (5.68)
41 Westerbeke Engines