Cessna T188C - 11-12. Cleaning; Accessories Removal; Inspection; Build-Up

MODEL
188 & T188
SERIES SERVICE
MANUAL
n. Attach a hoist to the lifting
lug on top of the en-
heat on hoses will cause them
to become brittle and
gine
and take up engine weight on
hoist. easily
broken. Hoses and lines are
most likely to
o. Carefully
check the engine again to
ensure all crack or break
near the end fittings and
support
hoses, lines,
wires, cables
and clamps are discon-
points.
nected or removed which would
interfere with the
d. Inspect for color bleaching
of the end fittings or
engine removal. severe discoloration of the hoses.
p. If the engine is to be removed from the engine
mount, remove carburetor airbox, remove bolts NOTE
attaching engine to mount, slowly hoist engine and
pull it forward
balancing the engine by
hand and Avoid
excessive flexing and sharp
bends
carefully guide the disconnected components out from when examining hoses for stiffness.
the engine assembly, then remove the shock-mount
assemblies. e. All flexible fluid carrying hoses in the engine
q. If engine is to be removed with engine mount compartment should be replaced at engine overhaul
attached, remove the bolts attaching engine mount to or every five years, whichever occurs first.
firewall, balance the engine by hand as the last of f. For major engine repairs, refer to the manu-
these bolts is removed, slowly hoist the engine, facturer's overhaul and repair manual.
pulling it forward and carefully guide the disconnected
components out from the engine assembly. 11-15. BUILD-UP. Engine build-up consists of in-
11-12.
CLEANING. The engine
may
be cleaned
with
stalling
of
parts, accessories
and components
to the
basic
engine
to
build
up
an engine
unit
ready
for in-
Stoddard
solvent or equivalent, then dried
thoroughly. stalation
on the aircraft. All safety wire,
lock-
washers, nuts, gaskets and rubber connections
CAUTION
should
be new
parts.
Particular
care should
be
given
to electrical
11-16
INSTALLATION.
Before
nstalling
the en-
equipment before cleaning. Cleaning fluids gine on the aircraft, install any items that were re-
should not be allowed to enter
magnetos,
moved after the engine was removed
from the air-
starter,
alternator,
etc. Protect
these
co-
craft
or airframe.
ponents
before
saturating
the engine
with
solvents.
All other
openings should
also be
NOTE
covered
before
cleaning
the
engine
assembly.
Caustic cleaning solutions should be used Remove all protective covers, plugs, caps
cautiously
and should
always be
properly
and identification
tags as each
item is con-
neutralized
after
their
use.
nected
or installed.
Omit
any items
not
11-13.
ACCESSORIES REMOVAL.
Removal
of en-
present
on a particular
engine
installation.
11-13. ACCESSORIES REMOVAL. Removal of en-
gine accessories
for overhaul or for engine replace-
a. If engine was
removed from engine-mount,
ment involves stripping
the engine of parts, acces-
hoist engine assembly
to a point near the mount,
sories and components to reduce
it to the bare en-
route controls, lines and
hoses in place as the
gine.
During the removal process,
removed items engine
is positioned near the mount.
Install shock-
should be examined carefully
and defective parts
mounts and ground straps as
illustrated in figure
should
be tagged for repair or replacement
with new 11-1.
Install engine mount bolts and
torque bolts to
components.
the torque
values
shown
in figure
11-1.
b. If engine was removed with engine-mount at-
NOTE
tached,
hoist
engine
assembly
to a
point near
the
Items easily
confused with similar items
firewall, route
controls, lines and hoses
in place
should
be tagged to provide a means
of as the engine
is positioned near the firewall.
Install
identification
when being installed on a
mount bolts and
associated hardware as illustrated
new engine. All openings exposed
by the in
figure 11-1 and torque bolts to
torque values shown
removal of
an item should be
closed by
in figure 11-1.
installing a suitable
cover or cap over
c. Remove hoist.
the opening.
This will prevent
entry of
d.
Route throttle
control to carburetor
and secure
foreign particles.
If suitable covers are
control in position
with clamps. Rig control in ac-
not available, tape may
be used to cover
cordance with
paragraph 11-67.
the
openings.
e.
Route
mixture
control
to carburetor
and
secure
control
in position
with clamps.
Rig in accordance
11-14. INSPECTION.
For specific
items to be in-
with paragraph 11-68.
spected
refer
to the
engine
manufacturer's
manual.
f. Install
carburetor
airbox,
route
carburetor
heat
a.
Visually inspect
the engine for
loose nuts, bolts,
control
to airbox and
secure in position
with clamps.
cracks
and fin
damage.
Rig
control in
accordance
with paragraph
11-70.
b. Inspect
baffles,
baffle
seals
and
brackets
for
g. Route
propeller
governor
control
to governor
cracks, deterioration
and breakage.
and secure control
in position with clamps. Rig
in
c. Inspect all hoses
for internal swelling,
chafing accordance
with Section 13.
through protective
plys, cuts,
breaks,
stiffness,
damaged
threads
and loose connections.
Excessive
11-8