Westerbeke 20B TWO Manual de instalación descargar pdf (Pagina 64)

Engine

Type

Governor

Valve

Mechanism

Combustion

Charnber

Bore

&

Stroke

Piston

Displacement

Firing

Order

Direction

of

Rotation

Maxirnum

Torque

Compression

Ratio

Compression

Pressure

Valve

Seat

Angle

Valve

Clearance

(engine

cold)

Dimensions

Inclination

Dry

Weight

Fuel

Consumption

Idle

Speed

Cruise

Speed

308/C

THREE

ENGINE

SPECIFICATIONS

SPECIFICATIONS

Diesel,

four-cycle,

three-cylinder,

fresh

water-

cooled,

vertical

in-line.

308/Three

-

27

Hp@

3600

rpm

maximum

30C/Three

-

25

Hp

@

3600

rpm

maximum

Mechanical,

centrifugal

weight

type

Overhead

Swirl

chamber

type

2.99

x

2.76

inches

(76

x

70

mm)

59.09

cubic

inches

(0.952

liters)

1 - 3

-2

Clockwise,

when

viewed

from

the

front.

431b-ft

(5.9

kg-m)

at

2200

rpm

23:1

398

psi

(28

kg/em')

at

280

rpm

Intake

45°

Exhaust

45°

Intake

0.0098

inches

(0.25)

Exhaust

0.0098

inches

(0.25)

Height:

19.75

(501.65)

Width:

16.00

inches

(

406.40)

Length:

28.81

inches

(731.77)

Continuous

14°

Temporary

25°

(not

to

exceed

30

min.)

272/bs

(123.3

kgs)

1.8

us

gph

(6.8

/ph)

at

3600

rpm

(approximate)

1000-1200

rpm

2500

-

3000

rpm

LUBRICATION

SYSTEM

General

Oil

Filter

(PN#

036920)

Operating

Oil

Pressure

(engine

hot)

Oil

Grade

Sump

Capacity

(including

filter)

General

Fuel

Injection

Pump

Engine

Timing

(Spill

Timing)

Injection

Pressure

Nozzle

Air

cleaner

Air

Flow

(engine

combustion)

Lift

Pump

(PN

#039275)

General

Pressure

type

by

Trochoid

pump,

gear-driven,

with

external

pressure

valve

relief

Full

flow,

paper

e/ernent,

spin-on

type

15-45

psi

(1.0-3.1

kg/em')

API

Specification

CF,

CG-4,

CH-4

or

Cl-4

SAE

15W-40

(all

season)

3.7

U.S.

qts

(3.5

liters)

FUEL

SYSTEM

Open

flow,

self-bleeding,

rnanual

priming

No.2

diesel

(cetane

rating

of

45

or

higher)

In-line

plunger

type

(BOSCH)

19°

±1°

BTDC

Static

1991

psi

(140

kg/cm2)

Throttle

type

Plastic

screen

type-cleanable

60.4

elm

(1.7

crnm)

12

volt

DC

lift

capacity

of

5'

(1.5

mm)

COOLING

SYSTEM

Fresh

water-cooled

block,

thermostatically-

controlled

with

heat

exchanger

170-190° F (77-

88°

C)

ELECTRICAL

SYSTEM

Operating

Temperature

Fresh

Water

Pump

(PN#

037015)

Centrifugal

type,

metal

impeller,

belt-driven

Starting

Battery

Battery

Capacity

Starter

Motor

(PN#

034552)

DC

No-Load

Current

DC

Cranking

Current

(engine

cold)

DC

Alternator

(PN#

0305942)

12

Volt,

(-)

negative

ground

600

-

800

CCA

(Cold

Cranking

Amps)

12

Volt,

1.2

Kw,

reduction

type,

solenoid-

mounted

100

Amps

at

11.5

Volts

(3000

rpm,

min)

190

Amps

at

10

Volts

(805

rpm,

min)

12

Volt

DC,

50

Amps

Raw

Water

Pump

(PN#

033636)

Raw

Water

Flow

(measured

before

discharge

into

exhaust

elbow)

System

Capacity

(Fresh

Water)

Positive

displacement,

rubber

impeller,

mechanically-driven

11.1

US

gmp

(42

/pm)

at

3600

rpm-approx.

4

US

qts

(3.8

liters)

TRANSMISSIONS

JS

Model

PRM

80

BW7

2.47:1

reduction

2.50:1

reduction

2.47:1

reduction

Propeller

Rotation

Right

hand

turning

Engines

&

Generators

56

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