Westerbeke 4.0Kw BCDB 50Hz Manual de instalación descargar pdf (Pagina 33)

ENGINE

TROUBLESHOOTING

Problem

Probable

Cause

Verification/Remedy

Generator

engine

overheats/shuts

down.

Raw

water

not

circulating.

Raw

water

pump

failure.

Check

impeller

replace.

Coolant

not

circulating.

Obstruction

raw

water

intake

raw

water

filter.

2a.

Thermostat

remove

and

test

hot

water.

Replace

thermostat.

2b.

Loss

cooiant

check

hoses,

hose

clamps,

drain

plug,

etc.

for

leaks.

2c.

Broken

loose

belts

tighten/replace.

2d.

Air

leak

system;

run

engine

and

open

the

pressure

cap

bleelj

air.

Add

coolant

needed.

Generator

engine

shuts

down,

Loss

oil.

Check

dipstick,

look

for

oiUeaks

oil

filter

and

Low

oil

pressure.

oil

drain

hose

connection.

Oil

pressure

switch.

Replace

oil

pressure

switch.

Generator

engine

shuts

down,

Exhaust

too

hot.

Check

raw

water

injection

flow,

look

for

exhaust

obstruction.

High

exhaust

temperature.

High

temperature

switch

opens

Check

for

satisfactory

operation

with

switch

bypassed,

too

Iowa

temperature.

check

with

ohmmeter,

replace

faulty.

Exhaust

smoking

problems

Blue

smoke.

Incorrect

grade

engine

oil.

1a.

Crankcase

overfilled

with

engine

oil

(oil

blowing

out

through

the

exhaust).

White

smoke.

Engine

running

cold.

2a.

Faulty

injector

incorrect

injector

timing.

Black

smoke.

Improper

grade

fuel.

3a.

Fuel

bum

incomplete

due

high

back

pressure

exhaust

insufficient

air

for

proper

combustion

(Check

for

restrictions

exhaust

system;

check

air

intake.).

3b.

Improperly

timed

injectors

valves

poor

compression.

3c.

Lack

air

check

air

intake

and

air

filter.

Check

for

proper

ventilation.

3d.

Overload.

TROUBLESHOOTING

WATER

TEMPERATURE

AND

OIL

PRESSURE

GAUGES

the gauge reading is other than what is normally indicated

the gauge when the instrument panel is energized, the first

step is to check for 12 volts

between the ignition (B+)

and the Negative (B-) terminals

the gauge.

Assuming that there is 12 volts as required, leave the instru-

ment panel energized and perform the

fOllowing steps:

Disconnect the sender wire at the gauge and see

the

gauge reads zero, which is the normal reading for this sit-

uation.

2. Remove the wire attached to the sender terminal at the

gauge and connect it to ground. See

the gauge reads full

scale, which is the normal reading for this situation.

If both

the above gauge tests are positive, the gauge is

undoubtedly

and the problem lies either with the conduc-

tor from the sender to the gauge

with the sender.

either

the above gauge tests are negative, the gauge

probably defective and should be replaced.

Assuming the gauge is

OK,

check the conductor from the

sender to the sender terminal at the gauge for continuity.

Check that the engine block is connected to the ground.

Some starters have isolated ground terminals and

the bat-

tery is connected to the starter (both plus and minus termi-

nals), the ground side will not necessarily be connected to the

block.

Engines

Generators

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 50 51

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Westerbeke 4.0Kw BCDB 50Hz Manual de instalación Pagina 33

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