Westerbeke 12.5 BTDA - Kw BTD(A)

Engine Type
Governor
Combustion Chamber
Bore & Stroke
Piston Displacement
Firing Order
Direction of Rotation
Maximum Torque
(at 1800 rpm)
SPECIFICATIONS
WESTERBEKE 12.5 KW BTD(A} GENERATOR
SPECIFICATIONS
Diesel, four-cycle, three-cylinder, fresh
water-cooled, vertical in-line overhead valve
mechanism,
(23 hp at 1800 rpm maximum).
Mechanical, centrifugal weight type
Swirl chamber type
3.07 x 3.07 inches (78 x 78 mm)
91 cubic inches (1.491iters)
1·3-4-2
Clockwi.~>e, when viewed from the front
671b-ft (9.26 kg·m)
General
Fuel
Fuel
Injection Pump
Fuel Injection Timing
Nozzle
Injectors
Fuel Pump
Fuel Filter (on engine)
Air cleaner
AirFlow
FUEL SYSTEM
Open flow, self bleeding
# 2 D(cetane rating of 45 or higher) SAE J313
Diesel grade according to ASTM 0975
Nippon Denso (Bosch M Type)
19• ± .5° BTDC (static timing)
Throttie type
Pintle Type
12 Volt DC, Electro-Magnetic type
Canister type with replaceable element
Metal screen type - cleanable
48 cfm (1.2 cmm)
Compression Ratio 23:1
Compression Pressure
Valve Timing
Valve Seat Angle
Valve Clearance
(engine cold)
Injection Pressure
Engine Speed
Engine Timing
Dimensions
Weight
Fuel Consumption
(approximate)
Inclination
General
Operating Temperature
Fresh Water Pump .
Raw Water Pump
Raw Water Flow,
at 1800 rpm
System Capacity
(fresh water)
455 psi (32 kg/em') at 280 rpm
Intake Opens 20° BTDC
Intake Closes 44o ABDC
Exhaust Opens 44° BBDC
Exhaust Closes 20• ATDC
Intake 45°
Exhaust 45°
Intake 0.0098 inches (0.25 mm)
Exhaust 0.0098 inches (0.25 mm)
1707 psi (120 kg/em'+ 10 kg/em'- Okg/cm
2
1800 rpm 60 Hertz
1500 rpm 50 Hertz
19° BTDC
Height: 25.34 inches (643.60 mm)
Width: 18.17 inches (461.50 mm)
Length: 37.25 inches (946.10 mm)
6381bs (289.4 kgs)
1.4 gph (5.29 lph) at full rated output
Continuous 15°
Temporary 20° (notto exceed 20 min.)
COOLING SYSTEM
Fresh water-cooled block, thermostatically-
controlled with heat exchanger.
170° -190" F (77"- sa· C).
Centrifugal type, metal impeller, belt-driven.
Positive displacement, rubber impeller,
belt-driven.
7.2 US gpm (27.251pm) (measured
before discharging into exhaust elbow).
8 qts (7.61iters).
LUBRICATION SYSTEM
General
Oil Filter
Sump Capacity
(not including filter)
Operating Oil Pressure
(engine hot)
Oil Grade
Pressure type by Trichoid pump, gear dt:iven
with elrternal pressure relief valve
Full flow. paper element. spin·on type.
4.76 u.s. gals (4.51iters).
. 40- 80 psi (2.8- 5.6 kg/cmz).
API Specification CF. CG-4, CH-4, Cl-4, GJ-4 or
better
SAE 10W•30 or 15W•40.
ELECTRICAL SYSTEM
Starting Battery
Battery Capacity
DC Charging Alternator
Regulator
Starter
Starting Aid
DC No-Load Current
DC Crankinq Current
12-Volt. (-) negative ground
400 • 600 Cold Cranking Amps (CCA)
12 Volt DC, 50 Amp
Internal regulator built into alternator
12-Volt, 1.6 KW, reduction, solenoid mounted
Glow plugs, sheathed type
90 Amps max. at 11.5 volts
175·200 Amps (engine cold)
EXHAUST EMISSIONS SYSTEMS
Emission Control
Systems
Smoke Putt Limiter