Mooney M20M - Page 341

SERVICE
AND
MAINTENANCE
MANUAL
M20M
MOON EY
AIRCRAFT
CORPORATION
81-10-02
ALTERNATE
AIR
SYSTEM
than
primary
air
so
less
power
will
be available
at
TURBOCHARGER
OPERATION
normal throttle
settings.
The
turbocharger
system
will
continue
to
operate
when
NOTE
the
primary
air
source
is
obstructed.
An
engine
Inspection
of
the induction
system
and
automatic
alternate
air
system
is
provided
to
allow
air
turbocharger
assembly
should be
conducted
from
inside the
cowling
to
pass
through
the
after
any
obstruction of
the
primary
air
source
compressor
and
into
the
engine.
This
air
is
wanner
prior
to
the
next
engine
operation.
81-20-00
TURBOCHARGER
TROUBLESHOOTING
TROUBLE
PROBABLE
CAUSE
REMEDY
Excessive
noise
or
vibration.
Improper
bearing
lubrication.
Supply
required
oil
pressure.
Clean
or
replace
oil line. If
trouble
continues,
remove
turbocharger
and
return
to
approved
overhaul
station for
overhaul
or
repair.
Leak
in
engine
intake
or
exhaust
Tighten
loose
connections,
or
replace
manifold,
manifold
gaskets
as
necessary.
Engine
will
not
deliver
rated
Clogged
manifold
system.
Clean
all
ducting.
power.
Foreign
material
lodged
in
Remove
turbocharger
and
return to
compressor
impeller
or
turbine.
approved
overhaul
station
for
overhaul
or
repair.
Excessive
dirt
buildup
in
Service
engine
induction
air
filter and
compressor.
check
for
leakage.
Remove
turbocharger
a~d
retum to
approved
overhaul
station
for
overhaul
or
repair.
Leak
in
engine
intake of
exhaust
Tighten
loose
connections,
or
replace
manifold.
manifold
gaskets
as
necessary.
Rotating
assembly
bearing
Remove
turbocharger
and
return
to
seizure.
approved
overhaul
station
for
overhaul
or
repair.
Compressor
blades
chipped,
Remove
turbocharger
and
return
to
bent
or
missing.
approved
overhaul
station for
overhaul
or
repair.
Impeller
binding
or
frozen.
Remove
turbocharger
and
return
to
approved
overhaul
station
for overhaul
or
repair.
Induction
or
exhaust
system
Perform
leak
checks.
leaks.
Compressor
blades
chipped,
Remove
turbocharger
and
return
to
bent
or
missing,
approved
overhaul
station
for
overhaul
or
repair.
Engine
surges
or
smokes.
Oil
leaking
into
turbine
wheel
Remove
turbocharger
and
return
to
chamber,
approved
overhaul
station
for
overhaul
or
repair.
Clogged
breather.
Check
breather for
restriction
to
air
flow.
81-10-02
4-99
OLDWILLWAYNE