Westerbeke W-70GA Installationshandbuch PDF herunterladen (Seite 38)

ENGINE

TROUBLESHOOTING

The

following

troubleshooting

table

describes

certain

problems

relating

to

engine

service,

the

probable

causes

of

these

problems,

and

the

recommendations

to

overcome

these

problems.

When

troubleshooting indicates

an

electrical

problem,

refer

to

the

ELECTRICAL SYSTEM

WIRING

DIAGRAMS.

Problem

Probable

Cause

No

panel

indications;

fuel

solenoid

1.

Battery

switch

not

on.

or

fuel

pump

is

not

working

(key

switch

is

on

and

PRESTART

button

is

depressed)

2.

20-amp

circuit

breaker

tripped.

3.

Loose

battery

connections.

START

button

is

depressed,

no

starter

1.

Connection

to

solenoid

faulty.

engagement.

2.

Gear

shift

not

in

neutral.

3.

Faulty

switch.

4.

Faulty

starter

solenoid.

5.

Loose

battery

connections.

6.

Low

battery.

Engine

cranks,

but

does

not

start.

1.

Faulty

fueling

system.

2.

Fuel

lift

pump

failure.

3.

Choke.

4.

Low

battery

power.

NOTE:

The

engine s electrical system is protected

by

a

20

ampere

manual

reset

circuit breaker located

on

a bracket at

the

back

of

the

engine.

The

preheat solenoid is mounted

on

the

same

bracket.

VerificationJRemedy

1.

Check

switch

and/or

battery

connections.

2.

Reset

breaker;

if

breaker

trips

again,

check

preheat

solenoid

circuit

and

check

circuit

for

shorts

to

ground.

3.

Check

(+)

connection

to

starter

solenoid

and

(-)

connection

to

engine

ground

stud.

Check

battery

cable

connections.

1.

Check

connection.

2.

Gear

shift

must

be

in

neutral

(see

NEUTRAL

SWITCH

under

HURTH

HSW

TRANSMISSIONS).

3.

Check

switch

with

ohmmeter.

4.

Check

that

12

volts

are

present

at

the

solenoid

connection.

5.

Check

battery

connections.

6.

Check

battery

charge

state.

1.

Check

that

fuel

valves

are

open.

Check

fuel

supply.

1a.

Check

for

air

in

fuel

system.

Bleed

air

from

fuel

system.

1

b.

Fuel

filters

clogged.

Replace

filters

and

bleed

air

from

fuel

system.

2.

Pump

should

be

"ticking".

Check

connections,

check

for

12

volts.

Replace

pump.

3.

Check

choke

operation.

Adjust

tension.

4.

Switch

to

combine

house

and

start

batteries.

Replace

batteries.

5.

Carburetor

filter

screen

is

clogged.

5.

Clear

with

compressed

air

or

clean

with

kerosene.

6.

Engine

is

flooded.

6a.

Carburetor

float

needle

valve

open

or

damaged.

Clean

or

replace

the

needle

valve.

6b.

Float

in

carburetor

is

leaking.

Repair

or

replace

float.

6c.

Float

chamber

gasket

damaged

or

securing

screws

are

loose.

Replace

gasket

and/or

tighten

screws.

7.

Worn

or

faulty

spark

plugs.

7.

Replace.

8.

High

tension

wires

grounding.

8.

Inspect

wires

and

test.

9.

Faulty

ignition

coil.

9.

Test

coil.

10.

Faulty

distributor.

10.

Test

distributor,

see

manual.

11.

Faulty

wire

connection.

11.

Inspect

wires.

12.

No

engine

compression.

12.

test

compression,

see

manual.

13.

Faulty

idle

adjustment.

13.

Adjust

idle,

see

manual.

Poor

running

performance.

1.

Carburetor

inlet

clogged.

1.

Remove

and

clean.

2.

Main

jet

clogged.

2.

Remove

and

clean.

3.

Air

intake,

carburetor

screen

dirty.

3.

Remove

and

clean.

4.

Carburetor

inlet

filter

clogged.

4.

Remove

and

clean.

5.

Fuel

lines

clogged.

5.

Inspect

lines.

replace

inlet

fuel

filter.

(continued)

Engines & Generators

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