Westerbeke BCGB - Specifications

BCGB ENGINE/GENERATOR SPECIFICATIONS
ENGINE SPECIFICATIONS
Engine Type
3 cylinder, 4 cycle, overhead camshaft
w/counterbalance shaft, carbureted,
water cooled gasoline engine
Bore and Stroke 2.56 x 2.61 in. (65 mm x 66.3 mm)
Total Displacement . 40.3 cubic inches (.66 liter)
Bearings Four main bearings
Combustion Chamber
Compression ratio
Firing Order
Semi-spherical
9.8-1
1-3-2
Direction of Rotation Counterclockwise viewed from the back
end
Inclination 25° continuous, all directions
30° temporary, all directions
Governor Mechanical
Fuel Pump
Fuel
Distributor
Spark Plugs
Ignition Coil
Flame Arrester
Carburetor
FUEL SYSTEM
Electric fuel pump
Unleaded 89 octane or higher gasoline
Breakerless distributor
14mm
12 volt
Metal screen type
Single-barrel downdraft type
ELECTRICAL SYSTEM
Start Motor
Starting Battery
Battery
Capacity
Battery Charging
12 volt reduction gear w/solenoid
12 volt negative ground
300 cold cranking amps (CCA)(min)
Integral electric, 17 amps
AIR REQUIREMENTS
Generator Cooling
Engine Combustion
(all models)
Engine Cooling
225-250 CFM
(6.3-7.0cmm)
42 CFM (1.2 cmm)
100 CFM (2.8 cmm)
General
Fresh Water Pump
Fresh water-cooled block through raw
water-cooled heat exchanger circuit
Centrifugal type, metal impeller
belt -d riven
Raw Water Pump Positive displacement, rubber impeller
Cooling Water Capacity 3.5 qts. (3.4 liters)
LUBRICATION SYSTEM
Type
Oil Filter
Oil Capacity
Oil Grade
Forced lubrication by gear pump
Fuel flow, paper element spin-on
disposals
2.7 qts. (2.6 liters)
API specification SJ class
AC GENERATOR SPECIFICATIONS
Type
Rating
4.5KW
3.8KW
7.0KW
5.0KW
Brushless, four pole capacitor, regulated
120/240 volts, 37.5/18.7 amps, 60 Hz,
single phase, 4 wire, 1.0 power factor
230 volts, 13 amps, 50 Hz, single phase,
4 wire, 1.0 power factor
120/240 volts, 58.3/29.2 amps, 60 Hz,
single phase, 4 wire, 1.0 power factor
230 volts, 13 amps, 50 Hz, single phase,
4 wire, 1.0 power factor
TUNE-UP SPECIFICATIONS
Spark Plug Gap
Spark Plug Torque
Valve Clearances
Cylinder Head
Bolt Torque
0.031 ± 0.002 inches (0.8 ± 0.05mm)
10.8 - 15.2 Ib-ft
Intake valves: 0.20 mm (0.008 in)
Exhaust valves: 0.30 mm (.012 in)
60 - 70 Nm 43-51 ft-Ibs
see TORQUING THE CYLINDER HEAD
BOLTSunderENGINEADJUST~ENTS
Engines & Generators
56