Westerbeke 7A one User manual

'- A light, compactengine for the small boat owner ...
.-
7A OrIQ
Manne Diesel Engme
Lightwieght and Compact
The Westert>eke 7A One provides 6.4 horsepower al
3OOO-rpm and IS th e most compact Westerbeke
propulsion engine ye t in troduced. This one-cylinder
engine is designed for the small boat owner who is
severely limited in available installation space and
allowable weigh!.
Reliable
The 7A One is designed wi th reliability in mind. No t
only wi ll it bring you back to port when the wind is l ight,
but it wi ll also provide assista nce when your battery is
low. A simple hand crank is supp li ed with this engine
for manual cran king. The 7A One is engineered to pro -
vide an engine that is as simp le as possible to provide
durability and, above
all, rel iability year after year.
Easy Operation and Maintenance
The 7A One is easy to operate wi th a simple start/stop
key switch and has no fresh water cooling system to
maintain.This engine also has a fuel strainer so filters
are not necessary.
The Name You Can Trust
The presence of Westert>eke in over 65 countries
around the world provides c
ustome rs with easy
access to part s, service and technical support
worldwide, Established in 1937, Westerbeke is com-
miMed to providing its customers with quality products
and unequaled a
ft er sales support.
Dimensions
Length
Width
Height
Weight
22S (571.5 mm)
1 6 , 3~ (414.0 mm)
17.1M(434.3 mm)
151 Ibs. (68.5 kilos)
Standard Features
7AOne
Marine Diesel Engine
• Engine start/stop with indicating light and hour
meter pre-wired to plug-in connector
• Low oil pressure/high water temperature alarm
• Circuit breaker protected electrical system
• Self-bleeding fuel system
• 12 Volt, 30 Amp alternator
• Full flow internal oil strainer
• Throttle, stop, and shift control brackets
• Gear-driven raw water pump
• Short profile marine gear with 2.05:1 reduction
• Glow plug cold starting aid
• Engine matched lour-point. fail-safe, adjustable mounts
• Tuned air Intake silencer
• Operators' manual and parts lisl
• EPA certified
~ WESTERBEKE '"
Engines & Generators

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Performance Data
6.4 Ho<sepowOf (4.7 Kw) ~T 3C(IO RPM
M""TO<Q""- ".3 Lbs ·Ft (1.5 Kg'lII) at 2590 RPM
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0f<1UI!
~ ' Z 11. 71
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[1.91
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w• .-. ~. a pr1lp<!Ier that ... 11aIow tha
oogW1e 10 tum 3C(IO RP.:!~rld"""'y "' let 1_
Specifications
Nu mber of cylinders 1 cylinder, vertical
Cycles 4 Cycle
Displacement 17.68 cu.
in. (.29 liter)
Bore and stroke 3.23" x 2.17" (82 mm x 55 mm)
Co mpression ratio 20:1
Maximum angle 01installation Not to exceed 10'
Maximum angle 01rotation Not to exceed 15'
Crankshaft. direction of rotation Counterclockwise as viewed from
lIywheel end
Propeller shaft. direction 01 rotati on Right hand -std. trans.
Dry weight
151 Ibs (68.5 kilos)
Combustion system Swirl type
Aspiration Naturally aspirated
Lu brication system Forced lubrication by gear pump
Starting aid Manual start with automatic
decompression
Engine stop Manual type
Fuel injection pump Bosch type
Governor Centrifugal type
Injectors Direct injection
Fuel lilter Primary
Lube oil
fi lt er Full fl ow, internal strainer
Lubricant capacity 1.3 quarts
(1 ,25 liters)
Dimensions
RAW W~ H R D'" ;,"", ,,-- 1:" - -- fl ,i, ,,- - - --1
1 12[ 1 ~ 1J 1 le9
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,
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Specifications (cont.)
F ueltransler pump Mechanical
Fuel supply and return piping 1/4"
10 (6.35 mm) minimum
5/16"
10 (7.94 mm) maximum
Starting motor 12 volt, solenoid, actuated
Battery charging alternator 30 ampere (12 volts)
Cold cranking amps 70 amps at 71 degrees F
Alternatorlregulator Automatic, solid state built-in
Electrical system 12
vo lts DC, negative ground
Construction
-
Engine Components
Cylinder head Cast Iron
Cylinder block Steel
Crankshaft Forged crankshaft, 2 main bearings
Valves Overhead valves, rotating type
Fuel System Sell bleeding
Intake system Tuned intake silencer for maximum
noi
se reduction
Cooling system Raw water-cooled
Exhaust manifold Cast aluminum, raw water-cooled with
Standard Equipment
Standard gear ratio 2.05:1
Mounting centers
12.6'"
Flexible mounts
FaH-safe rubber type
Battery charging alternator 30 ampere (12 volts)
Control brackets For all control attachments
Prewired Engine
Gear-driven raw water pump
Oi llill Top
Circuit breaker protected electrical system
Operator's Manual and Parts List
Optional Equipment
Muffler
Anti-siphon
"A" on board spare parts kit "B" on board spare parts kits
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Westerbeke Corp_. MYes $Wdsh Ird.1SIria l Park, 150 Jcrn Harnx:k Road, TalXltrn, MACJ2700.7319. U.S.A. · TELEPHONE [phone]fiTlo FAX : (SOO) 884-9686 · \I\Iebsite: lWffl .westerbeke,com
SpeOfi:::atict' &..t;ed toChar"ge without NoIioe_ DPS 3M 510'