Page 1
anew
• •
:Joma.·.oF
diesels
•
FOur
52
• lOW prOfile
New
•
•
HI-capaclty
Fresh
•
remote recovery tank
•
Heavy
•
Tuned
cycle, fOur
H.P
. marine
self priming fuel
heat
water
flywheel, precision
air Intake
cylinder
engine
and
lightweight
exchanger
cooled
silencer
manifOld
ENGINES:
I
system
fOr
for
with electric shut Off
with removable
with front or rear
visible coolant monitoring.
balanced, fOr
lower
10.2, 13, 21, 27,
noise
that
level
end
steam
33,
caps
eXhaust
engine
46,
and
58,
zinc
70,
electrode
openings
effect
80,
100, 120
and
a
" ., , . .
.
.,.
.
Page 2
A
NEW
CO
I.
precision-cast by the shell moulding process and then
nitrided for increased durability. The intake and exhaust ports
are arranged for cross flow
ciency.
2.
Cylinder
of thin wall ductile cast iron and half skirt. The water rail
designed to provide uniform distribution
der
phosphorus cast iron, which is given special honing
quick seating. and good oil retention, thus increasing wear
resistance.
3. Crank Mechanism: The forged crankshaft is supported by 5
bearings. The autothermatic piston
metal cast in
piston,
The
ensure quiet opera
4. Valve Mechanism:
are
Coupled
ear
g
engagement
5. Intake and Exhaust Sys tem: The intak e manifo
pendent
6. Fuel Sy stem: The fuel injection pump is a Bosch
distributor pump, small
toward n
valve built in
turning
SPECIFICATIONS
Number
Cylinder
Displ
Co
mpr
Combustion
Firing
Injection Pump
Governor
Lubrication Method
Cooling
Cold
Electrical System Voltage
Dry Weight
P
ower Take-off
COMPACT
STRU
CTION
Cylinder
head .
piston pin
of rotati on type for higher durability of the valve sea t.
train is intended to eliminate the backlash
aceme
Starting Aid
Head :
The
special cast-iron cylinder head is
to
The swirllype
Block : Weight reduction achieved by technologies
The
it
s skirt
th
ereby making it possible to lessen the pisto n clearance.
with a friction gear with one extra tooth, the timing
to reduce
branch type for higher intake efficiency.
oise
reduction. Since fuel can
th
off
the ignition switch.
of
Cylinders & Arrangement
Bore & Stroke
nt
............................
ession Ratio
Chamber
Order
.................
.....
Method
of
Engine (w/2: I Trans.) ... . .
precombustion chamber is used.
cylinder liner is
so
as to ho
is
offset by
ti
on from low to high speeds.
e pump , the engine operation can
.........•
..........
..
............ Mechanical (Built
.........
..........................
............
O.5mm
O.H. V. Both intake and exhaust valves
gear
noise.
in
size and light
...............
....•..................
.
.................
..
..........
DIESEL,
raise the intake and exhaust effi-
of
coolant to the cylin-
of
the dry type
of
Lo-Ex alloy has a sheet
ld the thermal expansion of the
. All
th
ese improvements
at
in
weight , contributing
be
c
ut
with the so lenoid
.........
3.50 in. x 3.5 I in.
.
...................
.
...............
.......
.........
.
Bosch Distributor Type
Pressure Feed Type
Fresh Water Cooled
.
...........
..
Various Crankshaft Pulleys
........
sof
of hig
to
the time
ld
is
be
stopped by
....
134
.8 C.LD.
Swirl Type
in
Glow Plug
52HP
-
--_-_
t-gas-
is
h-
provide
of
gear
of
inde-
VE type
4 in-line
2 I: I
1-3-4-2
Pump)
12 Volt
s
627 Ibs.
[ 1
FOR
.!.- _ _ - -
YACHTS
~"
t '
UP
TO
PERRlRMANCE
1MllllUlIU.!IIi
CURVE
~
/
..
-----
•
•
i5
~
.
~
::!
0
~
~ ..
___
I'ERFOR:\\A
Maximum Torque
One
hour Rating
HP/2000 r.p.m .. 53 HP/3000 r.p.m .. 66 HP/4000 r.p .m.
35
Continuous Rating
30 HP/2000 r.p.m., 45 HP/3000 r.p.m .. 56 HP/4000 r.p.m.
Typical Fuel Consumption Rate
Typical Fuel Consumption Rate at
when wheeled to tum 3000 RPM
Capacity
Ca
STA:'\OARO
Clutch and 2: I Reduct ion Gear (R.H. Propeller)
Adjus table flexible mounts on
Fr
12 vo
Cl
Glow plug
Engine pre-wired with single 8 pin connector
Elect
Ope
Alarm, l
Water Inj
Lube
owco
Fl
of
Lubricant
pacity
of
Coolant
es
h water cooling system
lt
55 ampere alternator
ut
ch and throttle contro l brackets (
co
ri
c shut
rators manual
off
ow oil
ec
ted Exhaust Elbow
Oil Drain Hose
ntroller-
OPTIONAL
Various accesso
Hydro- Hush Muffler
Sea
Water Strainer
Alternator
Add
Primary
18/20/22 y," mounting centers
R
emo
Five function Electric Instrume
and Tachometer
A wide variety
able in
Front exhaust outlet for
CALL
Output Spliner
it
ional 55
90 amp. alternator
te mounting lube oil filt
various reduction gears and vee drives.
YOUR
~
-' w-" .
"$tll
' CE
DATA
........
............
....................
EQlIPME'T
1
8"
ld starting aid
pressur
e,
high water temperature
forea
sy connection of domestic hot water heater
EQUP:\IE"iT
ry
fro
nt
pulleys
amp
. alternator
er
nt
of
manual and hydraulic transmissions are avail-
Vee Drive applications
WESTERBEKE
OR
CONTACT
,
.
•
&
..
EHr.rtIE
SPEfD
-
--
93.3 ft. Ib./2500 r.p.m.
.........
2500 RPM
.........
....
centers
Panel including Hour Meter
REPRESENTATIVE
THE.
RPM
-
06
3 US gal/ HP/hr
1.7 US gal/hr
.........
....
. . (
55FT
.,
(
r;
.
~
n~
.q
~
~
~
L
~
U
t~
~
..• ~
~
..
..
~
'.
»8
~
5.3 qts.
10.
5qt
s.
.
Marine
2J84J5
M
J.
H.
Avon
WESTERBEKE
Ind
ustri
al
Cable
Park, Avon,
: We
stc
MA 02322, (617) 5
orp
, Avon, Te lex: 92-
CORP.
88·
7700
444
4
Page 3
a
new
concept
• •
1nmarlne
diesels
I
--.....,
r
")
'"
;t
"
s
c:
'"
I
."
;
0
;
I
.,
...
..
I
.!
""
"
i
"
s
•
FOur
52
•
LOW
•
New
•
HI-capaclty
•
Fresh
remote recovery tank for
•
Heavy
•
Tuned
cycle
H.P. marine engine
prOfIle
self priming fuel
, four cylinder
and
lightweight
heat
water
flywheel, precision
air
Intake
exchanger
cooled
silencer
ENGINES:
system
manifold with front or
for lower
with electric shut
with
visible
balanced, for
removable
coolant monitoring.
that
noise
13,21,27,30,33,40,50,
level
.. . ,
off
end
caps
rear
steam
and
exhaust
engine
58,70,80,100,12
zinc
electrode
openings
effect
and
a
Page 4
A
NEW
COMPACT
,
....... ',I '
. I
,.
4>l.
....
,'"
DIESEL,
. - ",
t ' ...
II
._
-d
" ~
CONSTRUCTION
I.
Cy
linder Head:
precision-cast by the shell moulding process and then soft-gasnitrided for increased durability.
are arranged for cross flow to raise the intake and exhaust effi-
The
ciency.
2.
Cy
of
thin wall ductile cast iron and half skirt.
designed
der
head.
pho
sphorus cast iron, which is given special honing to provide
quick
re
sistance.
3. Crank Mechanism:
bearings.
metal
piston, thereby making
The
ensure
4.
Va
of
are
Coupled
ge
ar
train is intended to eliminate the backlash at the time
engagement
5. Intake and Exha ust
pendent branch type for higher intake efficiency.
6. Fuel System:
distributor
oward
t
va
lve built
turning
swirl type precombustion chamber
linder Block: Weight reduction achieved by technologies
to provide uniform distribution
The
seating. and good oil retention, thus increasing wear
The
cast
in its skirt so as to hold the thermal expansion
piston pin is offset by 0.5rnm. All these improvements
quiet operation from l
lve Mechanism:
rotation type for higher durability
with a friction
to reduce gear noise .
pump,
noise reduction. Since fuel can
in
off
the ignition switch.
SPEClFlCA
Number
Cylinder
Displacement
Comp
Combusti
Firing
Injection
Governor
Lubrication Method
Cooling
Cold
Electrical System Voltage
Dry Weig
Power
of
Cylinders & Arrangement
Bore & Stroke
ression Ratio
on
Chamber
Order
Pump
...................
Method
Starting Aid
ht
of
Take-off
The
special cast-iron cylinder head
The
cylinder liner is
The
forged crankshaft
autothermatic piston
it
possible to lessen the piston clearance.
ow
to high spee ds.
O.H.V.
System: The intake manifold is
The
fuel injection pump is a Bosch VE type
small
the pump, the engine operation can be stopped
Both intake and exhaust valves
gear
with one extra tooth , the timing
in
size and light
TlONS
...............
............................
.............
.......................
..........
...........
.................
....................
.......
Engine (w/2: I Trans.)
...............
.
.................
.
......
.
......................
-.
...
---,-~".C".~='
,
..
"
intake and exhaust ports
of
of
Mechanical (Bui
..............
coolant to the cylin-
the dry type
of
Lo-Ex alloy has a sheet
of
in
weight, contributing
be
cut with the solenoid
.........
3.50 in. x 3.51 in.
.
•.............
Bosch Distributor Type
Pressure Feed Type
Fresh Water Cooled
............
Various Crankshaft Pulleys
52
-,
....
..
...,
....
'',''
...
!Sl''
~"
..
~
.
is
used .
The
water rail is
of
high-
is
supported by 5
of
the valve seat.
of
of
4 in-line
134
.8 C.
. 21: I
Swirl Type
1-3-4-2
lt
in
Pump)
Glow Plug
12
. 627
is
the
gear
inde-
by
l.D.
Volts
Ibs
HP
FOR
.>.
YACHTS
"
~
~
.
~
"
UP
TO
PERFORMANCE
1IfI[,....~TIIIG
CURVE
~
/--.......
•
, "
=
~
~
::1
0
~
•
»
.
»
i'-
.-
/'
•
.
..
1 .
PERFORMANCE
Maximum
One
hour
Rating
35
HP
/2ooo r.
Continuous Rating
30
HP/2
Typical Fuel
Typical Fuel Consumption Rate
when wheeled
Capacity
Capacity
of
of
STA 'DAR!>
Clutch and
Adjustable flexible mount s on
Fresh water cooling system
12
volt 55 anlpere alternator
Clutch and throttle
Glow
plug cold starting a
Engine pre-wired with single 8 pin con nee
Electric shut
Operators manual
Alarm , l
Water Injected Exhaust Elbow
Lube
Flowcontroller-for easy connec
ow oil
Oil Drain Hose
OI'TlONAL
Various accessory front pull eys
Hydro-Hush Muffler
Sea
Wat
er
Alternator
Additional 55 amp. alternator
Primary 90 amp. alternator
8/20/22
1
Remote mounting lube o
Five function Electric Instrument Panel including Hour Meter
and
A wide variety
able
Front exhaust
CALL
.
[
___
v,
Ta
chometer
in vari
YOUR
..........
j -t_
...
. U' I
1".·
•• ,;'" ' ....
"-
1'-
_'r
1
DATA
Torque
ooo
Lubricant
Coolant
.........
p.m.
, 53 HP/3ooo
r.p .m
..
Consumption Rate
45 HP/3ooo r.p.m
to
tum 3000 RPM
...
EQL'IPMENT
2:
I Reduction Gear (R.H. Propeller)
co
ntrol brackets
id
off
pressure, high water temperature
EQUIPi\IE:'IiT
Strainer
Output Splitter
" mounting centers
of
ous reduction
outlet for Vee Drive applications
il
tilter
manual and hydraulic transmissions are avail-
gea
rs and vee drives.
WESTERBEKE
OR
CONTACT
~
"
,
..
... ...
ENGINE
SPEED
.
.......
18"
ti
93.3
ft. Ib./25oo
r.p.m
..
66 HP/4ooo r.p .m.
..
.........
at
2500 RPM
.
......
cente rs
on
of
56 HP/4ooo r.p.m.
063
.
.
lOr
domestic hot water heater
REPRESENTATIVE
~
THE
...
RPM
-
US
gal/HP/hr
US gal/hr
I .7
10
55
FT
.
(
.t:
r
~
n
i3
.~
~
~
L
~
'$I'
~
~
.41
~
~
D"~
1.8
~
~
r.p.m.
5.3
qts.
.5 qt s.
(
l
(
Manne NLP 6/6217500 Prlnled In USA
J.
H.
Avon
WESTERBEKE
Industrial Park, Avon,
Cable:
Westcorp,
MA
02322,
Avon, Telex:
(617)
92-4444
CORP.
588-
7700
Page 5
anew
in
•
1=Our
52
•
LOW
cycle
H.P
profile
,
fOur
. martne engine
and
CVllnder
lightweight
• New self
• HI-capaclty
• Fresh
remote
Heavy flywheel, precision balanced , fOr
•
• TUned
priming
heat
water
recovery tank fOr visible coolant monitOring.
air
cooled manifOld
Intake silencer fOr
fUel system
exchanger
with
lower
••
WESTERBEKE
with
with
electric
removable
front
noise level
shut
or
that
Off
end
caps and zinc electrOde
rear
exhaust openings
steam engine effect
W-52
and
a
Page 6
A
NEW
COMPACT
DIESEL,
52HP
FOR
YACHTS
UP
TO
55FT.
14
17.0
7.
, I
I ,
2.87
50
.0
25.0----
WESTERBEKE W·
series
...........
1.~!OUC.lOII ~
16.25
___
20.50
18
_.I'II()O"U
-!
s...,
TRAil'
-;
1.5
...
tA".un
52
..
_
';
I
CONSTRUCTION
l.
Cy
linder Head : The special
cast by
incr
cr
preco mbustion chamber is
2.
thin wall ductile
to provid e uniforl11 distribution of coolant to the cy linder head.
The cylinder liner is of the
which
retenti on, thus
3.
bearings. The autothermati c piston of Lo-Ex all oy has a sheet metal
cas
thereby
ton pin
operation from l
4. Valve Mechanism: O.H.V. Both intake and exhaust val
rotation type for higher durability of the valve
fri ction gear
to eli
gea
S.
ent br anch type for higher intake efficiency.
ut
noi
in the pump , the engine operation
ignition switch.
the shell moulding pr
ease
d durability. The intake and exhaust port s are arranged for
ossflow to raise the intake and exhaust efficiency. The swirl type
Cylinder Blo ck: Weight reduction achieved by technologi
is given
Crank Mechanism: The forged crankshaft
t in its skirt
making it possibl
is
mi
nate th e backlash at the
r noise.
Intake and Exh<lust
6.
Fuel System: The fuel injection pump
or
pump, small in si
se
reduction. Sin
cast iro
spec
ial honin g to provide quick
incre
asi:1
so
as
offset by
0.5111
ow
to high speed
with
one ex tra tooth, the
ce
to hold the thermal expansion of the piston,
ze
cast-ir
on cylinder he
ocess
and then soft-gas-nitrided for
us
ed.
n and half skirt. The water rail is designed
dr
y type of high-phosphorus
g wear resistance.
e to l
esse
n the piston clearance. The pis-
111
. All th
ese
improve
s.
timing ge
tim
e of gear engagement to redu
Sys
tem: The intake manifold is of independ·
is
it
and light in weight. contributi ng toward
fuel can be cut
with
the solenoid valve built
ca
n be stopped by turning off the
ad
is precision-
cas
sea
tin
g,
and good oil
is
support ed by 5
ments ensure quiet
ves
se
al. Coupled
ar train
is
intended
B
osch VE
type distrib-
es
t iron,
are of
with
of
ce
SPECIFICATIONS
Number of Cylind
Cy
linder Bore & Stroke
Displacement . (134.8 in
Comp
ress
Combustio n Chamber .
Firing
Order
Injection Pump . . . . . ,
Covernor
Lubrica tion Method
Cooling Meth od
Co
ld Starting
Electri
cal System Volta
Dry
Weig
Pow
er
Take-off . .
ers
& Arran
ion Ratio . .
...
.....
.. . ........
Aid
. .
ht
of Engine (wI 2: 1 Trans.).
ge
ment .... .
..............
. .
. .... ,..
.. , .. . ... Bosc
...•
. , ....
..... Mec
_ . . . . . . . .
. . _ . .
... _ ..
ge
..........
..
(3.50 in. x 3.51 in
............
hanical (Built in Pump)
....
Pressure Feed Type
... Fres
....
. _
..........
..
Various Crankshaft Pulleys
Sw
.
.....
h Distribut or Type
h Water
.......
. ... . .
Glow Plug
..
4 in-line
... 21.
irl
Type
1-3·4-2
Coo
led
, 12 Volts
(62
7Ib
s.)
22.0
PERFORMANCE CURVE
OIIE_lUIfIIIG
~
/
-------........
•
•
•
~/
J;~
".
.$-4-
~.
•
~
"
-
--
l~.O
---
PERFORMANCE
Maximum Tor
One ho
.....
Co
ntinuious
.
Specific Fuel Consumption .
Capacity 01 Lubricant . . . .
Capacity of Coo
"Performance is based on JIS standard atmospheric co nditi on
(atmos
without
0.9859 PS.
que.
ur
Rated Power Output
. 35PS/ 2000 r.p.m" 53 PS/ 3000 r.p.m
Rat
..
30PS/ 2000 r.p.m" 45PS/ 3000 r.p.m" 56.5PS/ 4000 r.p.m.
pheric pressure 760mm H
cooling fan. Conv
STANDARD
Direct
driv
e hydraulic transm
Adjus
ta
ble flex isolator engine mounts (18"
Fresh water cooling
12 volt
55
ampere alternator
Thr
ottl
e,
a
Glow plug cold weather starting aid
En
Operators manual
stop, and shift co
gi
ne pre-wired
OPTIONAL
Vari
ous
Water Inject
Hydro·H
Sea
Alt
F
and Tachometer
Short
Front exhaust outl et for Vee
.)
CALL
.)
0
accessory front pulleys
ed
us
h Mulfl er
Wat
er Strainer
ernator Output Splitter
iv
e function Electric Instrument
Profil e Reduction Gears, Paragon
YOUR WESTERBEKE REPRESENTATIVE
DATA
. .......
ed Power Output
lant.
.. ..
......
ersion to BHP is to be made at I HP =
EQUIPMENT
iss
sys
tem
ntr
ol bra ckets
at
the facto
ry
EQUIPMENT
Exha ust Elbow
Driv
OR CONTACT
,a
ENGINE
-
. . . . (93.3 lb.
.,
66.5PS/ 4000 r.p .m.
...
. (0.4 13 Ib.lHP.hr)
. . .......
g,
ion
with
Pan
e applications
.........
temp 20 °
a single 8 pin connector
el includin g Hour Meter
t)T
THE
C,
on centr
Warn er Transmissions
. "
SPEED
RPM
-
11
.)/2500 r.p.m.
humidity 65%)
e)
.
~
r
~
na
(6~
~
~
L
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..
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0.
'-1
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ii'
..
(5.3 qt.)
'"
-
. . (10.5 qt.)
(
(
.
~
~
J.
larm.,
1.1'
-1
}II
:;\11'rirlt''l1 m
liSA
Cnlwrrf(hl
W.'~1t'rh
..
·
J. H.
~
..
, ("TIl Cable: Westcorp, Avon,
WESTERBEKE
Av
on
Industr
ial
Park, Avon, MA
CORP.
02322, (617) 588· 7700
Telex
: 92-4444
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