Westerbeke W-70GA Manual de instalación descargar pdf (Pagina 40)

ENGINE

TROUBLESHOOTING

Problem

Probable

Cause

Verification/Remedy

Engine

backfires.

1.

Spark

plug

wires

are

connected

1.

Reconnect

correctly.

wrong.

2.

Incorrect

tlming.

2.

Adjust

engine

timing.

See

manual.

3.

Engine

is

flooded.

See

Engine

is

.

3.

See

Engine

cranks

but

fails

to

start

column.

flooded

under

Engine

cranks

but

fails

to

start.

4.

Dirty

flame

arrester.

4.

Clean

with

compressed

air

or

kerosene.

5.

Cracked

distributor

cap.

5.

Replace

distributor.

6.

High

exhaust

back-pressure.

6.

Test

back-pressure.

7.

Choke

is

stuck

closed.

7.

Inspect

carburetor.

Engfne

overheats.

1.

Coolant

loss.

1.

Check

for

leaks,

pressure

test

system.

2.

Faulty

raw

water

pump

impeller.

2.

Replace

impeller.

3.

Belts

are

loose

or

broken.

3.

Tighten,

check

belts.

4.

Faulty

thermostat.

4.

Replace.

5.

Heat

exchanger

is

clogged.

5.

Service

heat

exchanger.

6.

Collapsed

hose.

6.

Replace.

7.

Faulty

coolant

pump.

7.

Remove

and

replace.

8.

Coolant

tank

or

pressure

cap

faulty.

8.

Inspect,

replace.

Low

oil

pressure.

1.

Low

oil

level.

1.

Add

oil.

2.

Faulty

oil

pressure

switch,

sender,

gauge.

2.

Test

and

replace.

3.

Wrong

SAE

type

oil

in

the

engine.

3.

Change

oil.

4.

Wrong

type

oil

filter

..

4.

Change

filter

..

5.

Relief

valve

is

stuck.

5.

Service

engine.

6.

Faulty

oil

pump/strainer.

6.

Service

engine.

7.

Faulty

engine

bearings.

7.

Service

engine.

8.

Faulty

oil

filter.

8.

Change

filter.

9.

Oil

is

sump

is

slugged.

9.

Service

engine.

Flush

Sump.

High

oil

pressure.

1.

Dirty

oil

or

wrong

SAE

type

oil

in

1.

Change

oil.

the

engine.

2.

Relief

valve

is

stuck.

2.

Service

engine.

No

DC

charge

to

the

1.

Faulty

connections

to

1.

Tighten

and

clean

connections

..

starting

battery.

battery.

2.

Connections

to

the

alternator

are

2.

Tighten

and

clean

connections.

loose

or

faulty.

3.

Faulty

alternator.

3.

Test

alternator.

Oil

leak.

1.

Oil

drain

hose

loose.

1.

Tighten,

replace.

2.

Damaged

or

loose

timing

chain

2.

Tighten,

replace.

cover

or

rocker

arm.

3.

Loose

or

damaged

oil

pressure

3.

Tighten,

replace.

switch

or

sender.

4.

Loose

or

damaged

oil

filter.

4.

Tighten,

replace.

5.

Oil

pan

leaking.

5.

Tighten

bolts,

replace

pan

gasket.

Engine

alarm

sound

pulsates.

1.

Loss

of

oil.

1.

Check

dipstick,

look

for

oil

leaks

at

oil

filter

and

at

oil

drain

hose

connection.

2.

Oil

pressure

switch.

2.

Replace

oil

pressure

switch.

Engine

alarm

sounds

continuously.

1.

Engine

coolant.

1.

Check

engine

coolant

level.

2.

High

temperature

switch

opens

at

.

2.

Check

for

satisfactory

operation

with

switch

bypassed,

too

Iowa

temperature.

check

with

ohmmeter,

replace

if

faulty.

Engines & Generators

34

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