Cessna 182 1978 - Airbox Removal and Installation; Filter Removal and Installation; Ignition System

MODEL
182
& T182
SERIES
SERVICE
MANUAL
b.
Advance
throttle
to
increase
engine
speed
to
b.
Disconnect
flexible
compressor
inlet
(upper)
approximately
1000
RPM.
duct
at airbox.
c.
Pull
mixture
control
knob
slowly
and steadily
c.
Disconnect
flexible
carburetor
heat
(lower)
duct
toward
the
idle cut-off
position,
observing
tachometer,
from
airbox.
then return
control
full IN
(RICH)
position
before
en-
d. Disconnect
carburetor
heat
control
wire
from
gine
stops.
control
arm
on
airbox.
and
remove
clamp.
d.
Adjust
mixture
adjusting
screw
at upper
end
of
e.
Remove
clamp
attaching
air
filter
box
to airbox.
carburetor
intake
throat
to obtain
a slight
and
mo-
f.
Remove
screw
attaching
upper
airbox
support
to
mentary
gain
of
25 RPM
maximum
at
1000
RPM
firewall
stiffener.
engine
speed
as
mixture
control
is
moved
from
full
g.
Remove
four
screws
attaching
airbox
to firewall
IN
(RICH)
toward
idle
cut-off
position.
Return
con-
and
remove
airbox.
retaining
washers
for
installation.
trol
to
full
IN (RICH)
to prevent
engine
stoppage.
h.
Reverse
the
preceding
steps
for
reinstallation.
e. If
mixture
is
set
too LEAN,
engine
speed
will
Rig
carburetor
heat
control
according
to paragraph
drop
immediately,
thus requiring
a
richer
mixture.
11A-69.
Turn
adjusting
screw
OUT
(counterclockwise)
for
a
richer
mixture.
11A-54.
CLEANING
AND
INSPECTION.
Clean
metal
f. If
mixture
is set
too
RICH.
engine
speed
will
parts
of
the
induction
airbox
with
Stoddard
solvent
or
increase
above
25 RPM,
thus
requiring
a leaner
equivalent.
Inspect
for
cracks,
dents,
loose
rivets.
mixture.
Turn
adjusting
screw
IN
(clockwise)
for a
etc. Minor
cracks
may be
stop-drilled.
In case
of
leaner
mixture.
continued
or
severe
cracking,
replace
airbox.
In-
spect gaskets
and install new
gaskets, if damaged.
NOTE
Check
manually-operated
air
door
for
ease
of oper-
ation and proper rigging.
After
each
adjustment
to
the idle
mixture,
run engine
up
to approximately
2000
RPM
11A-54A.
INSTALLATION
OF INLET
DUCTS.
When
to clear
engine
of
excess
fuel
to
obtain
a
cutting
duct
assembly
to length,
the
support
wire
correct
idle
speed.
should
be
cut
back
far enough
to bend
back
(mini-
mum bend radius 1,8 inch) under the clamp and pro-
trude 1/4
inch. Do not
break the
bond between
wire
11A-50.
INDUCTION
AIR SYSTEM.
Ram
air
enters
and
fabric
Before
tightening
clamp,
make
sure
ther-
the
induction
air system
through
an intake
port
and a
is no
twist
or
torque
on
hose.
If hose
is
wrapped
filter
on the
aft left
side
of the
cowling.
It is
ducted
with
MIL-Y-1140
cord in
place
of wire
support,
the
to the
airbox,
and onward
to the
turbocharger
com-
same
installation
procedures
applies
except;
MIL-Y-
pressor
section, located under and to the left of
1140 has no miumum bend radius
requirement.
engine. After compression,
the air is forced
through The
minimum installed bend
radius for wire
the carburetor, where
fuel is intermixed
and then to
the intake
manifold
through
the throttle
valve.
The
supported
hose in the
plane
bend is as
mixture is distributed to each cylinder as demanded Neoprene, one-ply hose -1/4 diameter of the
1. Neoprene,
one-ply
hose -1/4
diameter
of the
through separate
intake pipes.
A butterfly valve,
maximum
how dimension.
located in the airbox may be operated manually from . Neoprene two-ply how and silicone, one-ply
the cockpit to
permit selection of carburetor heated hose-1/3
diameter of the minimum hose dimension.
air,
which in this application is also alternate air
4. Silicone, two-ply hose - 1/2 diameter
of the
selection.
When carburetor
heat is selected,
heated
maximum hose dimension.
air is drawn
from
a shroud on
the left exhaust
stack
assembly.
11A-55.
IGNITION SYSTEM.
11A-56.
DESCRIPTION.
The
ignition
system
is com-
11A-57.
FILTER REMOVAL
AND INSTALLATION.
prised of dual magnetos,
two spark plugs
in each
a. Remove
upper left cowling according
to paragraph cylinder,
an ignition wiring
harness, an ignition
switch
11A-3.
mounted on
the instrument
panel and required
wiring
b. Release the four
quick-release fasteners
securing between
the ignition switch
and magnetos.
the filter
assembly
to the airbox.
c.
Reverse
the preceding
steps for
installation.
11A-57.
TROUBLE
SHOOTING.
(Refer
to Section
11.)
11A-52.
CLEANING AND
INSPECTION. Clean
and
11A-58. MAGNETOS.
inspect
filter
in
accordance
with
instructions
in
Section 2.
11A-59.
DESCRIPTION.
The Bendix
D-2000
series
magneto
consists
of two
electrically
independent
NOTE
ignition
circuits. The magneto uses an
impulse
coupling
to provide
reliable
ignition
at engine
crank-
If filter gasket
becomes loose, bond
with
ing speed. Suppression
of breaker contact
point
EC-1300L or equivalent.
arcing is accomplished
by feed-thru type capacitors
mounted in the magneto
cover which forms
a part of
11A-53.
AIRBOX REMOVAL
AND
INSTALLATION.
the magneto
harness assembly.
a. Remove
upper
left
cowl
in accordance
with
para-
graph
11A-3.
11A-60.
REMOVAL
AND
INSTALLATION.
11A-14