Westerbeke 50 User manual

WESTERBEKE 50
The Westerbeke 50 is rated 41 horsepower at
3200 RPM. Five main bearing ruggedness sets the
engine apart from competition
and makes it ideally
suited for yacht club launch and other commercial
applications.
The modern des ign combustion chambers
give a most efficient
and quiet burn, providing the
engine with a maximum of
po wer per pound with a
minimum of noise. During testing the Westerbeke 50
proved to be demonstratably smoother and quieter
than other engines of similar horsepower. These
characteristics, plus its thoughtfully rugged design
and
compact size, make it just about perfect as auxiliary
power for
sai lboats and smaller displacement
crui
sers.
The engine is available with manual or hydraulic
transmissions in various gear ratios including
SPECIFICATIONS
Type: Fo ur cylinder four cycle overhead valve
vertical in-line diesel.
Displacement: 110
cu. in. Bore 35 /32", Str oke 3 1/2".
Power:
41 HP at 3200 RPM (see power curve.)
Compression Ratio: 21.47:1
Weight: 460
Ibs. basic engine. Add gear weights
opposite
page for lOR weight.
Fuel Injection Equipment:
CAY distributor type
injection pump
and CAY Pintaux nozzels working
in conjunction with Ricardo Comet V combus-
tion chambers.
Cylinder Block and Head: Special cast iron
mono blocks.
Crankshaft: Forged steel, counter balanced.
Camshaft: Forged steel.
Connection
Rods: I section alloy steel stampings.
Pistons: Aluminum alloy with solid skirt.
Main bearings:
Five, tri metal, heavy duty.
Lubrication: Wet sump. Eccentric rotor pressure pump,
camshaft-driven.
Exhaust Manifold: Fresh water cooled. Front or
rear opening.
Cooling System: Closed circuit system, including lube
oi I cooler with heat exchanger mounted.
'Angle of Installation: 15° maximum.
Electrical System: 12-volt negative grounded system
with 55 amp alternator.
Transmission:
See individual gears opposite for
specifications and propeller rotation.
Mounting:
Fle xi ble rubber mounts on 18" centers
standard.
STANDARD EQUIPMENT
Fresh water cooling system including lube oil cooler,
with heat exchanger; surge tank
and pumps mounted
on engine; flexible engine mounts; propeller shaft
coupling; clutch lever with lower extension for
remote control where applicable; mounting
bra ckets
for control cables; spin-on full flow lube oil filter, sump
pump
and hose; engine-mounted secondary fuel
vee-drives
and the new 2:1 short profile sailing trans-
missio n. With this transmission the Westerbeke 50 is
one of the smallest and lightest engines available r\
in its horsepower class. " '
An unusually long list of standard equipment comes
with this
new engine including fresh water cooling,
lube oil cooler, factory prewiring, large alternator,
and adjustable fle xi ble mounts.
The exhaust openi
ng is available either front
or rear opening, a particular advantage
in V-drive
installations. Some of the options available for the
Westerbeke 50 include water injected exhaust elbow,
for
use with our Hydro-Hush waterlift muffler,
prewired all electric plug-in instrument panel with
10' of cable; high water temperature, low oil pressure
alarm system,
and remote lubrication oil filter.
oil fille r, fuel lift pump with hand primer, flexible
hoses for fuel inlet
and return; cold weather starting
aid; 12 volt,
55 amp alternator with transistor
regulator; plug-in engine
pre -wiring including pre-
wired start panel with 10' cable; threaded 1' /2" IPS
exhaust flange; fully illustrated instruction manual
and parts list.
OPTIONAL EQUIPMENT
Hi gh efficiency primary fuel filter; remote lubri-
cation oil filter; front opening exhaust manifold; water
injected exhaust elbow; Hydro-Hush stainless steel
waterlift muffler; fle
xi ble stainless steel exhaust
section;
sea water strainer; remote fresh water
expansion tank; hot
wa ter heater connection kit;
pre-wired all-electric instrument panel with 10' cable,
extra 10' cable for instrument panel or start panel;
high water temperature, low oil pressure alarm
system; flexible shaft coupling; spare parts kits.
35
JO
"
15
10
MAX .
y-
..- c.OI'HlNUOUS -..,
. //
;/
V
l1'
~
:::.
-----
1 000
1500
V
...-,
V/
V V
~ ... /
~ ~
/
,'i"
/! /
/
~ /
~
~
o ,p
~
V
,/
/'
~
---
2000 2~
R.P.M. 3
000 I
3200
I"
~
75
6S
o

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1-- --- -25.00 ---- "1
eiTHER END
RAW WATER Dim ET
CONN 318 IpS EAR SIDE
'____ _ ___ -,-15 . 50 -- ..... 4. O'!
... 23 . 38
FLEX MOUNTING CENTERS
FOB ) 0 I AG SCR EWS
1-- --- 20.56 --- ~
1-- ---20 .8 1- -- -
WESTERBEKE Short Profile Saili ng Gear . The mo st compact 2,1 reduction package
ever ! Features p os itive neutral for free -w he eling, silent-running shaved case-hardened
helical gears, heavy -duty tapered roller bea r ings, and instant acting fin gertip co ntrol.
(Use Morse 33C cable or equal.) Weight 25 Ibs. TUrns ri gh t hand propeller. Drawing
abo ve shows Walter vee-drive close coupled to the sailing gea r. Reduct io n, 2:1. Wei ght
70 Ibs. Turns right hand propellor.
t
7.52
~IO tDIM A 1DIM 8'TO HSET
1501 1116 450 "1 8S
! 204' I' ''18 1 ·50 : 13O 1
l.lE I " 47 515 190
Il OO1 1 2' ~ S ~2 'O I
15. 25
PARAGON SAOV . Us e ou r
fro nt end ex hau st outlet
with this manual vee -drive.
Available
in ratios of 1.29: 1,
1.67,1 and 2,1. Wei g ht 90
lb. Turns left hand pro-
peller.
PARAGON P20 Hydraulic
Gear . A va ilable with direct
drive
and in 1 112, 2, 2V2 and
3 to 1 ratios. T he sma ll
offset
(see table) can be
turned down or up to suit
the
in stallati on . Weight,
direct drive 100 pound s,
reduction gear 150 pounds.
Tu rns le tt hand propeller.
1-
4. 75
11 .56
1 '52
1' -
4. 75
".25
4.75
I
, r---
- 4.00 - 2. ,;1
24 .00 --- J
- 4. 00 - 2. 5--
24. 31
- 400 - 2.5-
25 . 62
PARAGON Hydraulic Vee -
Drive. A Para g on P20 hy ·
draulic gear close-coupled
to a Wa lt er vee-drive. Ratio s
of 1.29, 1, 1.67, 1, and 2,1.
We ight 132 lb. Turns lett
hand pr opeller.
WARNER Hydraulic Vee-
Drive . AWa rner gea r coupl ed
to a Walter vee-drive. Rati os
of 1. 29, 1, 1,67,1, and 2,1.
Wei ght 135 Ibs. Turns left
hand propeller.
SAO Para gon direct manua l
g ear , Wei g ht 58 lb. TUrns
left hand propeller. Also
show n, redu c tion ge ar wit h
1
¥2: 1 and 2:1 ratios .
Wei g ht 82 lb. Turns left
hand propeller.
WARNER Hyd rau lic Gear _
In -line cons tru ction with no
offset. Av ai lable with di re ct
dri ve and 1 'h , 2, 2 'h and 3
to 1 rat ios for left hand
pr opellers, and 1.9,1 for
rig ht hand pro pellers.
Weight, direct dri ve 96
pounds, reduction gea r 147
pounds.
1--- ___ ..•... __ _ -1
- 4. 00 - 2. 50-
- 14 .81 DIRECT ORlve _
21 .19

WESTERBEKE 50 with
Direct Drive Paragon Manual Gear
The accessories shown below may be ordered with your engine or
purchased separately through Westerbeke Dealers and Distributors:
o
0 =q...... t<.~) t .. ,.:?
/ .. .
All El ectr ic Panel -
plugs into engine
pr ewiri ng .
Fl exib le Sha ft
( ~:. <J ~.j) 01
o
t,-.
LII •
j
l. P.\ M 10 / 7 9 2.2.906
Westerbeke Fuel W ater
Separa to r has
o pt ional visuall
audible ala rm when
water reaches
hig h
point in sediment
bowl.
W ater Injected E xhaust
El bow , for use with
wate r lift muff ler
syst ems .
Hydro Hu sh Muff ler
used in conjuncti on with
wa t er injected elbow for
quieter exhaust
sy stems.
Al arm Sy stem -
Engines may be prewired to acc ept
Wes terbeke sonic beeper or Aqua
Alarm bell.
o
Co up l ing - for
smoothe r pe rf ormance.
Spare Parts - A & B Kits are available
for on board replacements or emergency
repairs.
J. H. WESTERBEKE CORP.
AV ON INDU STR IA L PARK, AVON , MASS . 02322 ' (6 17) 588-7700
C AB LE : WE STCORP , AVO N - T ELE X: 92 - 4444
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