Cessna 177 SERIES Service Manual

11-57.
MAGNETOS.
3.
Remove nuts
and washers
attaching
high-ten-
sion outlet
plate to
the magneto
and remove
plate.
11-58. DESCRIPTION.
a. SLICK.
A sealed
lightweight
Slick
magneto,
NOTE
Model
No. 4051,
incorporating
an impulse
coupling
is used as the
left magneto,
while
magneto Model
No.
It is a good
practice to
position No.
1 cyl-
4050 (direct
drive) is used
as the right magneto.
inder
at its approximate
advance
firing
These
magnetos
MUST NOT
BE DISASSEMBLED.
position
before
removing the
magneto.
Internal
timing is fixed, and
breaker points are not
adjustable.
4. Remove
nuts, washers,
and clamps
attaching
b.
BENDIX
S-1200
SERIES.
The Bendix
S-1200
magneto
to the engine
accessory
housing.
series
magneto
is a completely
self contained
unit.
5.
Note the approximate
angular
position
at which
A two-pole
rotating
magnet
provides
the
magnetic
the magneto
is installed,
then
remove
the magneto.
energy
for the
circuit.
Suppression
of breaker
con-
6.
Reverse
the preceding
steps
for installation,
tact
point arcing
is accomplished
by a feed-thru
type
and time
magneto
to engine
in accordance
with
para-
capacitor
mounted in
the contact
breaker
point assem-
graph 11-62.
bly
cover. The
left magneto
incorporates
an
impulse
c. BENDIX
D-2000
SERIES.
coupling
to rotate
the magnet
between
impulse trips
1. Remove
engine
cowling in
accordance
with
faster than
engine
cranking
speed,
thus
generating
a
paragraph
11-3.
better
spark
for starting,
automatically
retard
the
2.
Remove
the eight
screws securing
the
high-
spark
when
starting
the engine
and act
as a drive
tension
outlet
cover to
the magneto.
The "P"
leads
coupling
for the magneto.
The
right magneto
incorpo-
may
be disconnected
for
additional
clearance
ifneces-
rates
the standard
drive.
sary.
c. BENDIX
D-2000
SERIES.
The Bendix
D-2000
series magneto
consists
of two
electrically
indepen-
NOTE
dent
ignition
circuits in
one housing.
A single
four
pole
rotor
provides
the magnetic
energy
for both
cir-
It is a
good practice
to position
No.
1 cyl-
cuits. The
magneto
uses an
impulse
coupling
to pro-
inder
at its
approximate
advance
firing
vide reliable
ignition
at engine cranking
speed.
Sup-
position
before removing
the magneto.
pression
of breaker
contact point
arcing
is accom-
plished
by feed-thru
type
capacitors
mounted
in the
3. Remove
nuts,
washers,
and clamps
attaching
magneto-cover,
which
forms
a part of
the magneto
magneto
to the engine
accessory
housing.
Note
harness
assembly.
the
approximate
angular position
at which
the magneto
is installed, then
remove the magneto.
11-59.
REMOVAL
AND
INSTALLATION.
4. Reverse
the preceding
steps
for installation,
a.
SLICK.
and time
magneto
to engine
in accordance
with
para-
1. Remove
engine
cowling
in accordance
with
graph
11-62.
paragraph
11-3.
2.
Remove high-tension
outlet
plate and
discon-
11-60.
INTERNAL
TIMING.
nect magneto
"P"
lead.
a. SLICK.
Internal
timing is
accomplished
during
3. Remove
nuts and
washers securing
magneto
manufacture
of the
magneto. Since
these
magnetos
to the engine.
Note
the approximate
angular
position
are
NOT TO
BE DISASSEMBLED,
there is
no internal
at which
the magneto
is installed,
then
remove
timing.
magneto.
b. BENDIX
S-1200 SERIES
(MAGNETO
REMOVED
FROM
ENGINE).
The
following
procedures
outline
CAUTION
adjustment
of the
breaker
contact
points
to open
at
the proper
position. It
is assumed
that the
magneto
When
connecting
"P" lead nut, torque
nut
has not
been disassembled,
and that
the distributor
13 to 15 in.
Ibs.
gear and
rotor shaft
gear have been
assembled
for
correct
meshing
of gears
and direction
of rotation.
4. Reverse
the preceding
steps for
installation,
Magneto
overhaul,
including
separation
of
the major
and time
magneto
to engine
in accordance
with para-
sections,
is not covered
in this
manual.
Refer to
the
graph 11-62.
applicable
Bendix
publications
for
disassembly
and
b. BENDIX
S-1200
SERIES.
overhaul.
1. Remove
breaker
contact
point
assembly
cover.
WARNING
2. Remove timing inspection
plug from bottom of
magneto.
The
magneto
is in a SWITCH
ON
condition
when
3. Turn
rotating
magnet
in normal
direction
of
the switch
wire is
disconnected
Therefore,
ground
rotation
until the
L ("E" gap)
mark
on distributor
gear
the breaker
contact
points
or disconnect
the
high
is approximately
aligned
with
mark on
block. Then
tension
wires
from magneto
or spark
plugs.
turn
rotating
magnet in the
opposite
direction of
rota-
tion until
the
magnet
locates
in the
neutral
position.
1. Remove
engine cowling
in accordance
with
4 Turn
rotating
magnet in
normal direction
of
paragraph
11-3.
rotation
until
the first
timing
mark
on the
magnet
is
2.
Disconnect
magneto
"P" lead at
the capacitor.
aligned
with
the divided
casting line
of the magneto
Change
8 11-21

Cessna 177 SERIES Specifications

General

Manufacturer	Cessna
Engine Type	Piston
Wingspan	35 ft 6 in (10.82 m)
Seating Capacity	4
Number Built	4, 295
Engine	Lycoming O-360
Horsepower	180 hp
Maximum Takeoff Weight	2, 500 lb (1, 134 kg)