Cessna 182 1978 - Seacost and Humid Areas; Extreme Weather Maintenance; Cold Weather; Hot Weather

MODEL
182 & T182
SERIES
SERVICE
MANUAL
1. Remove exhaust
stack assemblies.
the
cylinders and oil.
After the engine
compartment
2. Use
rubber expansion
plugs
to seal openings.
has been
pre-heated,
inspect
all engine
drain and
3. Using
a manometer
or gage, apply
approxi-
vent lines for
presence of ice.
After this
procedure
mately 1-1/2
psi (3 inches
of mercury)
air pressure
has been complied
with, pull
propeller through
sev-
while each
stack assembly is
submerged in water.
eral revolutions
by hand before attempting
to start
Any leaks
will appear
as bubbles and
can be readily
the engine.
detected.
4.
It is recommended
that exhaust stacks
found
defective be replaced before the next flight.
d. After installation
of exhaust system components
Due
to the desludging
effect of the diluted
perform
the inspection
in step "b" of this paragraph
oil,
engine operation should
be observed
to ascertain that system is acceptable. closely during the initial warm-up of the
engine. Engines
that have considerable
11-99.
EXTREME
WEATHER
MAINTENANCE.
amount
of operational
hours
accumulated
since
their last dilution
period may be
11-100.
COLD WEATHER. Cold weather starting
seriously affected by the dilution
process.
will be
made easier by the installation
of an engine
This will
be caused by the diluted
oil dis-
primer
system and a ground
service receptacle.
The lodging
sludge and carbon
deposits within
primer system is manually operated from
the cabin. the engine. This residue
will collect in the
Fuel
is supplied by a line
from the fuel strainer
to oil
sump and possibly clog
the screened
the plunger. Operating the primer forces
fuel to the inlet to the oil sump.
Small deposits may
engine. With an
external power receptacle
installed,
actually enter the
oil sump and be trapped
an external
power source may be
connected to assist
by the main
oil filter screen. Partial
or
in
cold weather
starting. Refer
to Section 16
for use
complete
loss of engine
lubrication may
of the external
power receptacle.
result
from either condition.
If these
con-
ditions
are anticipated
after oil dilution,
The following
may also be used
to assist engine
start-
the engine
should be run
for several min-
ing
in extreme cold
weather. After
the last flight
of
utes at normal
operating temperatures
and
the day, drain
the engine oil
into a clean container
so
then stopped
and inspected
for evidence
of
the
oil can be preheated.
Cover
the engine to
prevent
sludge and
carbon deposits
in the oil sump
ice or snow from collecting inside the cowling.
When of oil condition can
be
preparing the aircraft
for flight or engine runup after the oil
prior to each engine oil change. This
these
conditions
have
been
followed,
preheat
the
drain-
sludge
and
carbon
deposits.
11-101. HOT WEATHER.
Refer to Pilot's
Operating
Do
not heat
the
oil above
121°C
(250°F).
A
Handbook.
flash fire may
result. Before
pulling the
propeller
through, ascertain
that
the mag-
11-102. SEACOAST
AND HUMID
AREAS.
In salt
neto
switch
is in the
OFF position
to prevent
water areas
special
care
should be
taken to
keep
accidental
firing
of
the engine.
the
engine,
accessories
and
airframe
clean
to
pre-
vent oxidation.
In humid
areas,
fuel and
oil should
After
preheating
the engine
oil, gasoline
may be
be
checked frequently
and
drained of
condensation
mixed
with the heated
oil in
a ratio of 1
part gasoline
to
prevent corrosion.
to 12 parts
engine oil before
pouring into the engine
oil sump.
If the free air
temperature
is below minus
11-103. GROUND
SERVICE
RECEPTACLE.
Refer
29°C
(-20°),
the engine
compartment
should
be pre-
to Section
16.
heated
by
a ground
heater.
Pre-heating
the
engine
compartment
is accomplished
by inducing
heated
air
up
through
the
engine
cowl
flaps;
thus
heating
up both
SHOP
NOTES:
11-33/(11-34
blank)