Installation manual
ENGINE
JROQBLESHOOTING
Problem
Probable
Cause
VerilicationJRemedy
Engine
slows
and
stops.
1.
Fuel
lift
pump
failure.
1.
Fuellift
pump
should
make
a
distinct
ticking
sound.
Replace
pump
with
spare.
2.
Switches
and/or
wiring
loose
2.
Inspect
wiring
for
short
circuits
and
loose
connections.
or
disconnected,
Inspect
switches
for
proper
operation.
3.
Fuel
starvation.
3.
Check
fuel
supply,
fuel
valves,
fuel
lift
pump.
4.
20
Amp
circuit
breaker
tripping.
4.
Check
for
high
DC
amperage
draw
during
operation.
Ensure
breaker
is
not
overly
sansitiva
to
heat
which
would
causa
tripping.
5.
Exhaust
system
Is
restricted.
5.
Check
for
blockage,
collapsed
hose,
carbon
buildup
at
exhaust
elbow.
6.
Water
In
fuel.
6.
Pump
water
from
fuel
tank(s);
change
filters
and
bleed
fuel
system.
7.
Air
Intake
obstruction.
7.
Check
air
intake
Engine
overheats/shuts
down.
1.
Raw
water
not
circulating.
1.
Raw
water
pump
failure.
Check
Impeller
-
replace.
2.
Coolant
not
circulating.
2.
Obstruction
at
raw
water
Intake
or
raw
water
filter.
2a.
Thermostat
-
remove
and
test
in
hot
water.
Replace
thermostat.
2b.
Loss
of
coolant
-
check
hoses,
hose
clamps,
drain
plug,
etc.
for
leaks.
2c.
Broken
or
ioose
belts
-
tighten/replace.
2d.
Air
leak
in
system;
run
engine
and
open
the
pressure
cap
to
bleed
air.
Add
coolant
as
needed.
Engine
alarm
sound
pulsates.
1.
Loss
of
oil.
1.
Check
dipstick,
look
for
oil
leaks
at
oil
filter
and
at
01\
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
oparation
with
switch
bypassed,
too
Iowa
tamperatura.
check
with
ohmmeter,
replace
if
faulty.
Exhaust
smoke
problems
1.
Blue
smoke.
1.
Incorrect
grade
of
angine
oil.
la.
Crankcase
is
overfilled
with
engine
oil
(oil
is
blowing
out
through
the
axhaust).
2.
Whita
smoke.
2.
Engine
Is
running
cold.
2a.
Faulty
injector
or
Incorrect
injector
timing.
3.
Black
smoke.
3.
Improper
grade
offuel.
3a.
Fuel
burn
incomplete
due
to
high
back'pressure
in
exhaust
or
insufficient air
for
proper
combustion
(check
for
restrictions
in
exhaust
system;
check
air
intake).
3b.
Improperly
timed
injectors
or
valves,
or
poor
compression.
3c.
Lack
of
air
-
check
air
Intake.
Check
for
proper
ventilation.
3d.
Overload.
)
Engines
&
Generators
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