Westerbeke WMD 12.5-60Hz User manual

WESTERBEKE
12.5 KW
MARINE DIESEL
GENEkATOR
\ 5ET
MOOEL WMD 12.5
A s mall , re liabl e, smaoth running Generator Se t for a ll yo ur
shipboo rd n ee d s: 120 volt el ec tri ca l power at the turn of a
s wit ch for: El ec tri c Coo king, Mi crow a ve Oven. Re fri ge rati on.
Cabin
Applian ces , Power Tools, and Navig ati on/ Co mmuni ca ·
ti on Equipment. Lik e all W es terbeke Ge nerator Se t s, it is fr e sh
w at er cooled with an Engine mounted He at E xc han ge r. Th e
Engine
and Generator ar e conn ec ted thr ough sp ec ial " Co m·
mo
niz ed" Dri ve Di sc s, Fl y wh ee l, a nd Fl yw h ee l Housing into a
compact, c ar e full y aligned Generator Set. Th e co mpl ete unit is
mounted on lightweight rails
thr ough so ft adjusta bl e fl e xibl e
Is olator Mo unt s that pr eve nt the transfer of v ibrati o n. A light·
weight rem ov abl e Drip Tray is fitted und er the unit be tw ee n
the mounting
rail s. Th e En gine is fitted with an El ec tri c Fuel
Pump
and Self-Priming Fuel Sy st em that e liminat es hand prim -
ing and bl ee ding. Cast ir on cy lind er head a nd bl ock plu s sw irl
type co mbus ti on chamber plus tuned air intake silen ce r pro·
du ce qui et running unmatched in the indus tr y.
Th e We st erbeke 12.5 is lightweight, s af e, dependable, duo
rabie, and ec on o mi c al to operate. Designed to aperate at a qui et
1800 RPM, the
West erbeke 12.5 off ers 4 c ylind er 4 cy e/ e
smoothn
es s to pro vide el ec tri c al con ve ni en ce s usually found
o
nly on larger boot s.
FO R POWE R OR SAILB OAT .. . A NEW SERIES OF
DIESEL GENERATOR SETS FR OM WESTERBEKE.
GENERATORS: 4.4, 7.7, 11.0, 15 ,20, 30,45
Fresh Water Cooled Diutll GfllJsretOI'S from Wesrerbek• .

12 .5 kw , 1 phase, 1.0 power fa ctor, 3 phas e, O.B
power fa ctor.
Model 6
14 - four l ea d reconn ec tabl e, 1 20
volt, 2 wir e, 104 amps; 120 12 40 volt, 3 wire, 52 amps.
(Consult fa ctory for 3 phase info rm ation.)
60 Hertz (50 Hertz available at reduced
out·put. Consult fa ctory.)
Fo
ur pole revolving armat ur e with no D. C.
brushes or commutator. Inhere ntly reRulated with solid
state r
ec tifier type se lf·excitation. A.c. slip rings, drip
proof construction.
si ngle bearing design. Connection to
the engine is by a
se mi·flexible driv e disc for positive
alignment. ±7% no load to full l
oa d.
3 Hertz
(5 %) no load to
full load.
MODEL WMD 12.5
C lass "F" as defined by NEMA MG 1·1 .65.
Within NEMA MG 1·2 2.40 defi·
nition when operating at full load.
Ce ntrifugal type blower. direct conn ec ted.
Capacitors minimize
inte rf erence within the limit s of m os t co mm ercial and
civilian appli
ca tion s.
Bal an ce d laminated steel. double dipped
and baked. Thick hot rolled steel
with welded b ea ring
su pport bracke t. Ma chined as an asse mbly for precise
b
ea ring alignment.
Pr e·lubri ca ted ball b ea rin g, double sea led
with anti·rotation l oc k.
1.5 IPS EXHAUST CONN,
1-- --- 28 .25 --- ~
PANEL
EngineType ........... 4 cycle, water cool ed. naturally
as pirated. vertical overh ea d val ve, d iese l engine
Cy linder arrangement .............. 4 cylindersin line
Bore & Stroke
.......... 3.0 7 "x 3. 07" (7Bmm .x 7Bmm .)
Displacement
........... . ... 91cubic inch (1.490 litr e)
Co mpr ess ion ratio ........... . .............. 23 to 1
Coo ling water ca p ac ity ........... . ........... 9 Qts .
Rotation
.......... SAE Std. (clockwi se fac ing front e nd )
Fu el Inj ec tion Pump ...... . . . .. Bos ch Distributor Type
Individual plunger for
eac h cylinder, ca m driven
in a pr
ec ision h ousi ng ma chined in bl oc k for
Inj
ec to rs ............... .
Co mbustion Chamber .. .
rigidity a
nd accuracy.
. . . ...... Pintle type
..... Swirl type fo r easy
starting a nd quiet operation
Total weight
... . . " ... . .... . ........ 715 1bs .
Governor .
.. .... . . . . .M ec hani ca l ce ntrifu ga l type
Fuel filter . . . . . . . .
.. . ......... Pap er element type
Lubricating device
.. For ced lubri ca tion by tr oc hoid pump
Lub.oil filter
...... Full fl ow, spin on, paper eleme nt type
Lub. oil
ca pacity with filter .................. 4.7 Qts .
Starting motor
.......... G ea r ed el ec tric motor. 12 Volt.
Starting aid
........... 12 Volt sh ea th ed type gl ow plug
Fuel pump . . .
............... El ec tric plunger type
Rat ed RPM . . . . . . . . . . . . . . . . . . . . . ...... l BOO
Max. Hp. at rated RPM ....................... 23 HP
Full l oa d fuel co nsumption approx 1.4 GP H
12.tiIcw
o.. •• tua ...
,88
12 Volt 50 Ampere Alternator . Coolant recove ry tank
Fr
es h water cooling system · Operators Manual
Air Intake Si len ce r . 12 Volt Starting Motor
Vibration lsolaters • Control Panel
Water Inj ec ted Exhaust Elbow
S TA NDARD MOUNTED PANEl
Hy dr o Hu sh Silencer . "Sound/ Gua rd"
OPTIONAL
"SOUND /GUARD"
SOUND ENCLOSURE
Remo te Ins trum en t Pan el · 1 5' Ca ble for remote Panel
Ship to Shore Transfer Switch
OR CONTACT THE . . .
•
M arIne NLP , 82'7'5QOPro" 'ed ,n USA
Avon Industri al Park , Avon, MA 02322, ( 617 ) 588·7700
Cable:
West co rp , Avon, Telex : 92·4444
(

WESTERBEKE
12.5 KW
MARINE DIESEL
GENERATOR
\ 5ET
MODEL WMD 12.5
A sma ll . re liabl e. smooth running Generat or Set for all your
shipboa
rd n ee d s: 1 20 volt el ec tri ca l power at the turn of a
switch for: Elec tri c Cooking, Micr owave Oven, Refrige rati on,
Cab in Applian ces. Power Too ls . and Naviga ti on/ Comm uni ca·
ti on Equipment. Lik e all W es terbeke Generator Se ts, it is fr es h
water cooled with an Engine mounted H
ea t Exchanger. Th e
Engine
and Generator are conn ec ted thr ough special "Com·
monized"
Dri ve Di scs, Fl yw h ee l. and Fl yw h ee l Housing into a
compact, carefu ll y aligned Generator Se t. Th eco mpl ete unit is
mo unt ed on lightweight rails thr ough soft adjustable fl ex ibl e
I
so lat or Mo unt s that pr eve nt the tr ansfer of v ibrati o n. A li ght·
we ight removable Drip Tray is fill ed under the unit be tw ee n
the mounting
rai ls. Th e Engine is fill ed with an El ec tri c Fuel
Pump
and Se lf -Priming Fuel Sys tem th at eliminat es hand prim·
ing a nd bl ee ding. Cas t iron cy lind er h ea d and block plus swi rl
type combustion chamber plus tuned air intake silencer pro-
duce quiet running unmatched
in the indus tr y.
Th e W es terbeke 12.5 is li ghtweight, sa f e, dependabl e, du-
rabl e, and eco no mi c al to operate. Designed to aperate at a qui et
18 00 RPM, the W es terbeke 12 .5 o ff ers 4 cylinder 4 cycle
smoothn
ess to pro v id e electrical con ve ni en ce s usually found
o nl y on lar ger boats.
FOR POWER OR SA ILBOAT ... A NEW SE RI ES OF
DI ESEL GENERATOR SETS FR OM WESTERBEKE.
1- ,·
GENERATORS: 4.4, 7.7, 11 .0, 15,20,30,45
Frah Water Cooled Diesel G"""",ton from Wutet6eke .

12.5 kw, 1 phas e, 1.0 power factor, 3 phase , O.S
power factor.
Model
614 -four lead reconnect ab l e, 120
volt, 2 wire, 104 amps; 1201240 volt, 3 wire, 52 amps .
(Consult factory for 3 phase information.)
60 Hertz (50 Hertz available at redu ce d
out-put. Consult factory.)
Four pole revolving armature with no D
.C.
brushes or commutator. Inherently re~u l at e d with so lid
state rectifier type
se l f- excitation. A .C. slip rings, drip
proof construction, single b
ea ring design. Co nn ec tion to
th e engine is by a semi-flexible driv e disc for positive
alignment. ±7% no load to full load.
RECUL
3 Hertz (5%) no load to
full load.
1.6 IPS EXHAUST CONN.
Engine Type . . . .4 cycle, water cooled, naturally
asp irat ed, ve rti ca l overh ea d valve. di ese l engine
Cylinder a rr angeme nt .............. 4cylindersin li ne
Bore & S tr oke . ...... . .. 3.07" x3. 07" (7S mm.x 7Smm.)
Displacement. . . . ... 91 cubic inch ( 1.4 90 litre)
Co mpr ess i on ratio . . . . . . . . . . . . . . . . . . . . .. 23 to I
Coo ling water capacity . . . . . . . . . . . . . . . . . ... 9 Qts .
Rotation . . . . .
SA E Std. (clockwi se f aci ng front end)
Fu el Inj ec tion Pump . . . .. Bosch Distributor Type
Individual plunger for
eac h cylinder. ca m driven
in apr
ec isi on housing machin ed in block for
rigidity and
acc uracy.
Injectors . . . . . . . . . . . . . . .
... Pintle type
Co mbustion Chamber . . . . . . . . . Swirl type for easy
sta rting and quiet ope rati on
Total weight .. ... ... .. . .............. 7151bs .
Gove rnor ................ Mechanical ce ntr ifu ga l type
Fuel filter . . . . . . . . ........ Paper element type
Lubricating devi
ce .. Forced lubri ca tion by tr oc hoid pump
Lub. oil filt
er. .Full flow. sp in on, paper element type
Lub. oil capacity with filter
....... 4.7 Qts.
Sta rting motor. . . Gea r ed el ect ric motor. 12 Volt.
Startingaid
........... 12 Volt sheat hed type glow plug
Fuel pump .................... Electric plunger type
Rat
ed RPM . . . . . .. I SOO
Max. Hp. at rated RPM ....................... 23 HP
Full l oad fuel consumption approx . . 1.4 GPH
MODEL WMD 12 .5
C lass "F" as defined by NEMA MGI-1.65.
E Within NEMA
MG 1-22.40 defi-
niti on when operating at full l oa d.
Centrifugal type blower, dir ec t connect ed.
Capacitors minimize
interferen ce within the limits of m os t co mmercial and
civilian applications.
Balan
ce d laminated steel, double dipped
and baked. Thick hot rolled st
ee l with welded bearing
support bracket. Machined
as an assembly for pr ecise
b ea ring ali gn ment.
B Pr
e- lubri ca t ed ball b ea ring, double sea led
with anti-rotation lock.
••
12 Volt 50 Ampere Alternator · Coolant recove ry tank
Fr
es h water cooling system . Operato rs Manual
Air Intake Silen
ce r · 12 Volt Starting Motor
Vibration I
so laters • Control Panel
Water Inj ec ted Exhaust Elbow
I ~ 0 e I/~"J\c (f · ~':J<l
I "- oj ..... .: I
o G '(. ~ Q> I
,- I
"C6 r l!"£Jl! . ~ ....... ~ I
~ -- _ --- -<
STA NDARD MOUNTED PANEL
Hydro Hu sh Silencer · "Sound/Guard"
OP T IONA L
" SO UND / CU A RD "
SOUND ENCLOSURE
Remote In st rument Panel · 15' Ca ble for remote Panel
Sh ip to Shore Tr ansfer Sw itch
OR CONTA CT THE . ..
Maf on e NLP 1/8217500 p"rlled In US A
Avon Industrial Park , Avon, MA 02322,[phone]
(able : Westcorp, Avon, Telex : 92-4444
(

..
A small, re liabl e, smooth running Generator Set for all your
shipboard n ee ds : 120 volt el ec tri cal power at the turn of a
s wit ch for: Electric Cooking, Micr owave Oven, Refrige rati on,
Cabin Appliances, Po wer Tool s, and Navigation/ Communica-
ti on Equipment. Lik e all W es terbeke Generator Sets , it is fr es h
w
at er cooled with an Engine mounted H ea t Exchanger. Th e
Engine
and Generator are conn ec ted through sp ec ial "Com-
monized"
Dri ve Dis cs, Flywh ee l, and Flywh ee l Housing into a
compact, carefully aligned Generator Set. Th e co mpl ete unit is
mount ed on lightweight rails through soft adjustable fl ex ible
Isolat
or Mounts that pr eve nt the transfer of v ibrati on. A light-
weight removable
Drip Tray is fill ed under the unit be tw ee n
the mounting rai
ls . Th e Engine is fi ll ed wi th an Electric Fuel
Pump and Self-Priming Fuel S ys tem that eliminat es handprim-
ing
and bleeding. Cas t iron cylinder he ad and bl ock pl us swirl
type combustion chamber plus tuned air intake silencer pro-
du ce qui et running unmatched in the indust ry.
The W es terbeke 12 .5 is li gh tw eight, safe, dependabl e, du-
rabl e, and eco nomi ca l to operat e. Designed to operate at a quiet
18 00 RPM, th e We st erbeke 12 .5 o ff ers 4 cy lind er 4 cy cle
smooth
nes s to provid e el ec tr ical canvenien ces usually found
o
nl y on larger boat s.
FOR POWER OR SAILBOAT" . A NEW SERIES OF
DIESEL GENERATOR SETS FR OM WESTERBEKE.
GENERATORS:3, 4.4 , 7.7, 11 ,12.5, 15, 20 , 25 ,32, 45
Fresh Wate, CooItKJ D~ G"""",tors from WssterlJeIre,

MODEl: WMD 12 .5
IW 'i i 3;J:J 3:i' p!'j :\\il\~ t';J W'''' ,j 31A 3¢13 ;t~ ,n ;1
RATINC: 12 .5 kw, I phase, 1.0 power fa ctor, 3 phase, 0.8 INSULATION: Class "F" as defin ed by NEMA MGI-1.65.
power fa ctor. TEMPERATURE RISE: Within NEMA MGI-22.40 de fi-
VOLTACE: Model 6 14 -four lead re co nn ectable, 120 nition when operating at full load.
volt, 2 wire, 104 amps; 1201240 volt, 3 wire, 52 amps.
COOLlNC: Centrifugal type blower, dir ec t con nected.
(Consult factory for 3 phase information.) RADIO INTERFERENCE LEVEL: Capacitors minimize
FREQUENCY : 60 Hertz (50 H ertz available at redu ce d interference within the limits of most comme rcial and
out-put. Consult fa ctory.) civi li an aoolications.
DESICN: Four pole revolving armature with no D .C. ARMATURE: Balan ce d laminated steel. double dipped
brushes or commutator. Inher en tl y r eg ulated with solid and baked .
state rectifier type self-excitation. A.c. slip rings, drip FIELD RINC: Thick hot rolled st ee l with welded bearing
proof co nstru ction, single bearing d es ign. Connection to suppo rt bra cket. Ma chined as an assemb ly for pr ecise
the engine is by a semi-flexible drive disc for positive bear in g alignment.
ahgnment. BEARINC : Pre-lubri ca ted ball b ea ring, double sealed
VOLTACE RECULATlON: ±7% no l oad to full load. with ant i-r otation lock.
FREQUENCY RECULATION: 3 Hertz (5 %) no load to
full load.
PANEL
ENCINE
Engine Type ........... 4 cycle, water cooled, naturally
aspirated, vertical
overhead valve, diesel engine
Cylinder arrangement .... . .... . .... 4 cylinders in line
Bore & Stroke
.......... 3.07"x3.07" (78mm. x 78mm .)
Displacement . . . ............ 91 cubic inch (1.490 litre)
Compression ratio .......................... 23 to I
Cooling water capac ity ....................... 9 Qts.
Rotation
.......... SAE Std. (clockwise facing front end)
Fuel
Inj ection Pump . . ..... . ... Bosch Distributor Type
Individual plunger for each cylinde r, cam driven
in a precision housing machin ed in block for
rigidity
and accuracy.
Inj ectors .......................... . ... Pintle type
Combustion C hamb er ............. Swirl type for easy
starting
an d quiet opera ti on
Total weight
............................. 7151bs.
Governor ................ Mechanical centrifugal type
Fuel filter
...... . . . ............. Paper el eme nt type
Lubricating device .. Forced lubri ca tion by trochoid pump
Lub.oil filter ...... Full flow, spin on, paper element type
Lub.oil capacity with filter
.... . ......... . ... 4 .7 Qts.
Starting mot or. . .... . ... Geared electric motor, 12 Volt.
Starting aid ........... 12 Volt sheathed type glow plug
Fuel
pump . . . . . . . . . . . . . . . . . . .. Electric plungertype
Rated RPM ................................. 1800
Max. Hp.at rated RPM ..................... . .23 HP
Full load fuel approx ...... , .. 1.4 GPH
72.5Icw
..
STANDARD EQUIPMENT
12 Volt 50 Amp ere Alternator · Coolant recovery tank
Fresh water coo ling system . Ope r ators Manual
Air Intake Silencer ·
12 Volt Starting Motor
Vibration Isolat ers • Control Panel
Water Inj ec t ed Exhaust Elbow
, .
(;) f" (. I .
(') 0 -,
( .
wn'''''U''l
STANDARD MOUNTiD PANEL
OPTIONAL EQUIPMENT
Hydro Hush Silencer · "So und /Guard"
Remote Instrument Panel· 15 ' Cable for remote Panel
Ship to
Shore Transfer Switch
OR CONTACT THE. _.
J. H. WESTERBEKE CORP.
MR 9/83 7500
Avon Industrial Park, Avon, MA 02322, [phone]
Cable: Westcorp. Avon, Telex: 92-4444

WESTERBEKE
12.5 KW
MARINE DIESEL
GENE ATOR
I
SET
A small. reliabl e. smooth running Generator Set for a ll your
shipboord nee
ds : 120 vo lt electri ca l power at the turn of a
switch
for : £Iectric Coo king, Mi crowave Oven, Re frig eration.
Cabin Applian
ces. Power Too ls . and Navigation/Communica-
tion Equipment. Like all W
es te rb eke Generator Se ts, it is fr es h
water cool
ed with an Engine mounted Heat Exchanger. Th e
Engine and Generotor are connect
ed th ro ugh special "Co m-
monized" Dri ve Discs . Fl yw heel. and Fl yw heel Housing into a
compact, carefully aligned Generator Set.
Th e co mpl ete unit is
mounted on lightweight rails through soft adjustable fl exible
Isolator Mounts that prevent
th e transfer of vibratio n. A light-
weight removable Drip Tra y is fitt ed under the unit between
the mounting rail
s. Th e Engine is fitt ed with an £Iectric Fu el
Pump andSelf-Priming Fu elSystem that eliminat es hand prim-
ing and bleeding
Cas t iron cylinder head and block plus swirl
type combustion c
hamb er plus tun ed air intake silencer pro-
duce quiet running unmatched in the industry.
Th e Westerbeke 12 .5 is lightweight, safe, depe nd able, d u-
rabl e, andeconomi ca lto operat e. Designed to operate at a quiet
1800 RPM , the Weste rb eke 12 .5 offe rs 4 cylinder 4 cycle
smoothn
ess to provide electrical co nveniences usua ll y found
only on larger boats.
FOR POWER OR SAILBOAT ... A NEW SERIES OF
DIESEL GENERATOR SETS FROM WESTERBEKE.
GENERATORS: 4.4, 7.7, 11.0, 12.5, 15 , 20,30,45
F"$h Wet", Cooled Dinel GenfH'tltofS from WufrIrlHIk,,_

RATING: 12.5 kw, I phase, 1.0 power fa ctor,3 phase, O.B
power fa ctor.
VOLTAGE: Model 614 -four l ea d reconn ec tabl e. 120
volt, 2 wire, 104 a mps ; 120 12 40 volt. 3 wire, 52 amps.
(Consult fa ctory for 3 phase information.)
FREQUENCY: 60 Hertz (50 Hertz available at redu ce d
out-put. Consult
fa ctory .)
DESIGN: Fo ur pole revolving armature with no D.C.
brushes or commutator. Inherently re~ulated with solid
state r
ec tifier type se lf-excitation. A .C. slip rin gs. drip
proof con st ruction. single b ea ring d es ign. Con n ec tion to
the engine
is by a semi -fl exi bl e drive di sc for positive
alignment.
VOLTAGE REGULATION: ±7% no l oa d to full load.
FREQUENCY REGULATION: 3 Hertz (5 %) no load to
full load.
PANEL
ENGINE
Eng ineType. . . . . .4 cy cl e. water cooled.naturally
aspirated. vertical overhead valve.
di ese l engine
Cy linder arrangement . . .... . ... 4 cylindersin line
Bore & S
tr oke . . . . . . . .3.07 "x3.07 " (7Bmm. x7Bmm.)
Displacement . . . . . . . . . . 91cubic inch (1.490 litr e)
Co mpr ess ion ratio. . ........ . . ... .. ..... 23 to I
Cooling water ca pa city . . . . . . . . ... . .9 Qts.
Rotation . .... . .... SAE Std. (clockwise f ac ing front e nd)
Fu el Injection Pump . . .. .. . .... B osc h Distributor Type
Individual plun
ge r for eac h cylinder. ca m driven
in a pr
ec isi on housing ma chined in bl oc k for
rigidity and accuracy.
fnjectors . . . . . . . . . . . . . . . . . . Pintletype
Co mbustion Cha mber .. . . ...... . . . Sw irl type for easy
starting and quiet operation
Total weight . . . . . . . .
.... 715 Ib s.
Governor . . . . . . . . .M ec hani ca l ce ntrifu ga l type
Fuel filter .. . . Paper element type
Lubri
ca ting device . .For ce d lubri ca tion by tr oc hoid pump
Lub.oil filter . .
.. Full fl ow. sp in on,paper elem en t type
Lub.oil
ca pa city wi th filter . . ... .. . . ... . ... 4.7 Qts.
Starting motor . . .. . Gea r ed el ec tric motor, 12 Volt.
Starting aid ........... 12 Volt sheathed type glow plug
Fu el pump . . . ... El ec tric plun ge r type
Rat ed RPM . .. . .. .. .. . .......... I BOO
Max.Hp.at rated RPM . . ..... . .............. 23 HP
Full load fuel .. .... . .. 1.4 GP H
INSULATION: Class " F" as defined by NEMA MGI-I .65.
TEMPERATURE RISE: Within NEMA MG 1-22.40 de fi -
nition when operating at full load.
COOLING: Ce ntrifu ga l type blower. direct connected.
RADIO INTERFERENCE LEVEL : Ca pa cito rs minimize
interference within the limits of most commercial and
civilian applications.
ARMATURE : Balan ced laminated steel. double dipped
and baked.
FIELD RING: Thick hot rolled steel with welded bearing
support br
ac ke t. Ma chined as an assembly for pr ec i se
bearing a li gnme nt.
BEARING: Pr e-lubri ca t ed ball bearing. double sea led
with anti-rotation lock.
..
STANDARD EQUIPMENT
12 Volt 50 Ampere Alternator ' Coo lant recove ry tank
Fr
es h water cooling system ' Operators Manual
Air Intake Silen ce r ' 12 Volt Sta rting Motor
Vibration Isolaters • Control
Pan el
Water Injected Exhaust Elbow
STANDARD MOUNTED PANEL
OPTIONAL EQUIPMENT
Hydr o Hu sh Silencer ' " So und/Guard"
Remote Instrument Panel ' 15 ' Ca ble for remote Pan el
Ship to Shore Tr ansfer Switch
OR CONTACT THE . ..
J. H. WESTERBEKE CORP.
Manne NLP 1/8217500 Punted In US A Avon Industrial
Pa rk, Avon, MA 02322, (617 ) 588-7700
Cable: Westcorp, Avon, Te lex:92-4444

(
WESTERBEKE
12.5 KW
MARINE DIESEL
R
SET
A small, reliable. smooth running Generator Set for all your
shipboard nee
ds : 120 vo lt electricol power at the turn of a
switch for: Electric Cookin
g. Mi crowave Oven. Re frig era ti o n,
Cabin Appliances. Power Tool s. and Navigation/Communica-
tion Equipment. Like a
ll Westerbeke Generator Sets. it is fr esh
water cooled with an Engine mount
ed Heat Exchanger. Th e
Engine and Generator are connected through special
"Co m-
monized"
Dri ve Dis cs. Fl yw heel. and Fl yw heel Housing in to a
co
mpa ct. carefully aligned Generator Set. Th e co mpl ete unit is
mounted on lightweight rails through soft adjustable fl ex ible
Isolator Mounts that prevent the transfer
of vibration. A light-
weig ht re mo vable Drip Tra y is fill ed under the unit between
the mounting rails.
Th e Engine is fi lled with an El ectric Fu el
Pump and Self-Priming Fu el System that eliminates h and prim-
ing a nd bleeding. Cas t ir an cylinder head and black plus sw irl
type co mbu stion c hamb er p lu s tuned air intake silencer pr o-
du ce quiet running unmatch ed in th e industr y.
The Westerbeke 12.5 is lightweight. safe. dependable, du-
rable, and econo mi ca l to operat e. Designed to operate at a quiet
1800 RPM , the Westerbeke 12.5 offers 4 cylinder 4 cye/e
smoothness to provide electrical conveniences usua
ll y found
only on larger boat
s.
FO R P OWE R OR SA ILB OA T ... A NEW SE RI ES OF
DI ESEL GENE RA TOR SETS FR OM WESTERBEKE.
.. . ..
GENERATORS: 4.4, 7. 7, 70, 77.7, 72.5, 75, 20,30,45
Ff'8sh WataT Cooled Diasal GaneTators from Westerbeke _

RAnNC: 12 .5 kw, I phase , 1.0 power fa ctor, 3 phase, O .B
power fa ctor.
VOLTAGE: Model 614 -four lead reconnectabl e, 120
volt, 2 wire, 104 amps ; 1201240 volt, 3 wir e, 52 a mp s.
(Consult fa cto ry for 3 phas e information .)
FREQUENCY: 60 Hertz (50 Hertz available at re du ce d
out-put. Consult
fa cto ry .)
DESIGN: Four pole revolving armature with no D .C.
brush es or commutator. Inherently r eg ulated with solid
state r
ec tifier type se lf-excitation. A .C. slip rin gs . drip
proof
co nstruction, single b ea ring d esig n. Con n ec tion to
th e engine is by a semi-flexible drive disc f or positive
alignment.
VOLTAGE REGULATION: ±7% no foad to fuff foad .
FREQUENCY REGULATION: 3 Hertz (5 %) no l oa d to
fuff load.
ENGINE
Engine Type ........... 4cycle, water cooled,naturaffy
aspi rat ed, vertical overhead valve,diesel engine
Cylinder arrangement . . ........ 4cylinders in line
Bore & Stroke
.......... 3. 07" x3.07" (7Bmm. x7Bmm.)
Displacement ............... . I cubic inch (1.490 litre)
Compression ratio
................ . ......... 23 to I
Cooling water capacity ....................... 9 Qts .
Rotation
.......... SAE Std .(clockwise fa cing front end)
Fu el Injection Pump . . . . . . Bosch Distributor Type
fndividual plunger for
each cylinder, cam driven
in aprecision housing machined in block for
rigidity and accuracy.
Injectors
.............................. Pintle type
Combustion Chamber
............. Swirl type for easy
starting a nd quiet operation
Total weight . . . . . . . . . . . . . .
.......... 715 Ibs .
Governor
....... . ........ Mechanical centrifugal type
Fuel filter .. . .... . .............. Paper element type
Lubricating device
.. Forced lubrication by trochoid pump
Lub.oil filter
...... Fuff flow,spin on,paper element type
Lub.oil capacity ....................... . ... 4.2 Qts .
Starting motor ....... . .. Geared electric motor, 12 Volt.
Starting aid ........... 12 Volt sheathed type glow plug
Fuel pump
.................... Electric plunger type
Rated RPM ................................. IBOO
Max.Hp. at rated RPM ...... _ ................ 23 HP
LWMD12 .S
INSULATION :Cl ass "F" as defined by EMA MG 1-1 .65.
TEMPERATURE RISE : Within NEMA MGI-22.40 defi-
nition when ope rating at fu ff l oa d.
COOLING : Cent rifu gal type blower. dir ec t co nn ec t ed.
RADIO INTERFERENCE LEVEL: Capacito rs minimize
interferen
ce within th e limits of m os t co mmercial and
civilian applications.
ARMATURE : Balan ced laminated st ee l. double dipped
a
nd baked.
FIELD RING :Thick hot r offe d st ee l with we ld ed bearing
support bracke
t. Ma chined as an assemb ly for precise
b ea ring alignment.
BEARING : Pre-lubri ca ted baff bearing. double sealed
with anti-rotation l
oc k.
STANDARD EQUIPMENT
12 Volt 50 Ampere Alternator · Coolant recove ry tank
Fr
esh water cooling system . Operato rs Manual
Air Intake Sil en ce r · 12 Volt Starting Motor
Vibration Isolaters • Control
Panel
Water Injected Exhaust Elbow
STAN D AR D MOUNTED PA NIL
OPTIONAL EQUIPMENT
Hydro Hush Silencer · "Sound/Guard"
Remote
In strument Panel . 10 ' Ca ble for remote Panel
Ship to Shore Transfer Switch
OR CONTACT THE . ..
J. H. WESTERBEKE CORP.
Avon Industrial Park , Avon, MA02322 , 588-7700
Cable:
We s tcorp , Avon , Telex:92 -4444