Service manual
SPECIFICATIONS
WESTERBEKE
20
KW
BEDA
GENERATOR
SPECIFICATIONS
Engine
Type
Aspiration
Governor
Combustion
Chamber
Bore
&
Stroke
Piston
Displacement
Firing
Order
Direction
of
Rotation
Maximum
Torque
(at
1800
rpm)
Compression
Ratio
Dimensions
Diesel,
four-cycle,
four-cylinder,
fresh
water-cooled
Vertical,
in-line
overhead
valve
mechanism
(33
hp
at
1800
rpm
maximum).
Naturally
aspirated.
Electronic
Governing
Swirl
type
3.50
x
4.0
inches
(88.9
x
101.6
mm)
154
cubic
inches
(2.5
liters)
1-3-4-2
Clockwise,
when
viewed
from
the
front
1171b-ft
(16.18
kg-m)
21:1
Height:
28.50
inches
Width:
22.00
inches
Length:
45.79
inches
(723.9mm)
(546.1
mm)
(1163.3
mm)
Weight
943lbs
(431.7
kgs)
Fuel
Consumption
2.0
gph
(7.57
Iph)
at
full
rated
output
(approximate)
InClination
Continuous
15°
Temporary
200
(not
to
exceed
20
min.)
Generator
Power
Take
off
30
Horsepower
(maximum)
TUNE-UP
SPECIFICATIONS
Compression
Pressure
427
psi
(30
kglcm2)
at
200
rpm
(Limit
of
difference
between
cylinders)
(47.2
psi
{3.0
kg/cm'l)
Valve
Timing
valve
Seat
Angle
Valve
Clearance
(engine
cold)
Engine
Speed
Injector
Pressure
Engine
Timing
Intake
Opens
17°
BTOC
Intake
Closes
4]0
ABDC
Exhaust
Opens
51
°
BBDC
Exhaust
Closes
13°
ATDC
Intake
45°
Exhaust
300
Intake
0.012
inches
(0.3
mm)
Exhaust
0.012
inches
(0.3
mm)
1800
RPM
60
Hertz
1500
RPM
50
Hertz
1920
+
71-0
psi
(135
+
5-0
kglcffi2)
Static
timed
-
drop
valve
method
0.205
±
.005
inches
BTDC
General
Fuel
Fuel
Injection
Pump
Fuel
Injection
Timing
Nozzle
Fuel
Filter
(on
engine)
Air
cleaner
Air
Row
(engine
combustion)
General
Operating
Temperature
Fresh
Water
Pump
Raw
Water
Pump
Raw
Water
Row,
at
1800
rpm
System
capacity
(fresh
water)
FUEl
SYSTEM
Open
flow,
self
priming
- 1
bleed
point
No.2
diesel
oil
(cetane
rating
of
45
or
higher)
ZEXEL
Model
VE
Distributor
0°
TOC
(Top
Dead
Center)
Throttle
type
Spin-on
type,
full
flow
Metal
screen
type
81.0
cfm
(2.29
cmm)
COOLING
SYSTEM
Fresh
water-cooled
block,
thermostatically-
controlled
with
heat
exchanger.
170
-190°
F
(n
-
88°
C)
Centrifugal
type,
metal
impeller,
belt-driven
Positive
displacement,
rubber
impeller,
belt
driven.
14.0
gpm
(52.9
Ipm)
(measured
before
discharging
into
exhaust
elbow);
11.5
qts
(10.88
liters)
LUBRICATION
SYSTEM
General
Oil
Filter
Sump
capacity
(not
including
filter)
Operating
Oil
Pressure
(engine
hot)
Oil
Grade
Pressure
fed
system
Full
flow,
paper
element,
spin-on
type
6.5
U.S.
qts
(6.15
liters)
plus
filter/cooler
assembly
50-60
psi
(3.5
-
4.2
kglcffi2)
API
Specification
of
CF
or
CG-4,
SAE
30,
lOW-3D,
15W-40
Engines & Generators
.62