Cessna 177 SERIES Service Manual

11-13.
TROUBLE
SHOOTING
(Cont).
TROUBLE
PROBABLE
CAUSE
REMEDY
ENGINE
RUNS ROUGHLY
Defective
or badly
adjusted
Check
setting of accelerating
OR WILL NOT ACCELERATE accelerating
pump in carbu- pump
linkage and adjust as
PROPERLY
(Cont). retor.
necessary.
Float
level set
too low.
Check
and reset
float
level.
Defective
carburetor.
If engine
will start
when primed
but stops when
priming is
dis-
continued,
with
mixture
control
in full RICH
position, the
carbu-
retor is defective.
Repair
or
replace
carburetor.
Defective
engine.
Check
compression.
Listen for
unusual
engine noises.
Engine
repair
is required.
Restricted carburetor
air Check
visually. Clean in
filter.
accordance
with
Section 2.
Cracked
engine mount.
Inspect and
repair or replace
mount as
required.
Defective
mounting
bushings.
Inspect
and install
new bushings
as required.
POOR
IDLE
CUT-OFF.
Worn
or
improperly
rigged
Check
that idle
cut-off
stop
on
mixture
control.
carburetor
is contacted.
Replace
worn
linkage.
Rig
properly.
Manual primer
leaking.
Disconnect
primer
outlet line.
If
fuel
leaks
through
primer,
it is defective.
Repair
or
replace
primer.
Defective
carburetor.
Repair or
replace
carburetor.
Fuel contamination.
Check
all screens
in
fuel system.
Drain all
fuel and flush
out sys-
tem. Clean
all screens,
lines,
strainer
and
carburetor.
11-13A. STATIC
RUN-UP PROCEDURES.
In a case
MODEL
STATIC RPM
of suspected low engine
power, a static RPM run-up
1968 2310
should
be conducted as follows:
1969
2410
a. Run-up engine using take-off power and mixture 1970 2670
settings,
with aircraft facing 90 degrees
right and
and on
then left to the wind direction.
d. If the resulting
average RPM figure is lower
b. Record the RPM obtained
in each run-up position. than stated
above, the following checks are recom-
mended
to determine
a
possible
deficiency:
NOTE
1. Check carburetor heat control
for proper
Daily changes in atmospheric pressure, rigging. A partially open carburetor heat control
temperature and humidity will have a will cause slight power loss.
slight effect on RPM obtained. 2. Check ignition timing setting.
3.
Check
spark
plugs
and ignition
harness
for
c. Average
the RPM values
obtained in
step b. The
condition.
resulting
RPM
figure should
be with-in
50 RPM of
4. Check
condition of
induction air
filter. Clean
the following
values:
if necessary.
5. Perform
engine
compression
check.
(Refer
to engine Manufacturer's
Service
Manual)
11-8
Change
5

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)