Cessna T188C - Trouble Shooting

MODEL
188
& T188
SERIES
SERVICE
MANUAL
11-31.
TROUBLE
SHOOTING.
TROUBLE
PROBABLE
CAUSE
REMEDY
NO
OIL PRESSURE.
No oil in
sump.
Fill sump
with proper
grade
and
quantity
of oil. Refer
to figure
2-4.
Oil
pressure
line
broken,
Replace
or
connect.
disconnected-or pinched.
Oil pump
defective.
Remove
and inspect.
Examine
engine.
Metal
particles
from
damaged
pump
may have
entered
engine oil passages.
Defective
oil pressure
gage.
Replace
gage.
Oil
congealed
in
gage line.
Disconnect
line at
engine
and gage;
flush with
kerosene.
Pre-fill
with
kerosene
and
install.
Relief
valve
defective.
Remove
and
check
for dirty
or
de-
fective
parts. Clean
and
install;
replace
defective
parts.
LOW
OIL
PRESSURE.
Low
oil supply.
Replenish.
Low
viscosity oil.
Drain
sump and refill with
proper
grade
and
quantity
of
oil.
Oil
pressure
relief valve
spring
Replace
weak
or broken
spring.
weak or broken.
Defective
oil pump.
Remove
and inspect. Examine
engine.
Metal particles
from
damaged
pump may
have
entered
engine oil passages.
Secondary
result
of high
oil
Observe
oil
temperature
gage
for
temperature,
high
indication.
Determine
and
correct
reason
for
high oil tem-
perature.
HIGH
OIL PRESSURE.
High viscosity
oil.
Drain
sump
and refill
with
proper
grade
and quantity
of
oil.
Relief
valve defective.
Remove
and check
for dirty
or de-
fective
parts.
Clean and
install;
replace
defective
parts.
Defective
oil pressure
gage.
Replace
oil
pressure
gage.
11-12