Mooney M20K - Turbocharger Troubleshooting

MOONEY
AIRCRAFT
CORPORATION
M20K
SERVICE
AND
MAINTENANCE
MANUAL
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
Tighten
loose
connections,
or
replace
manifold.
manifold
gaskets
as
necessary.
Engine
will
not
deliver
rated
Clogged
manifold
system.
Clean
all
ducting.
power.
Foreign
maten~al
lodged
in
Remove
turbocharger
and
return
to
compressor
impeller
or
approved
overhaul
station
for
turbine.
overhaul or
repair.
Excessive
dirt
buildup
in
Service
engine
induction
air
tilter
and
compressor.
check
for
leakage.
Remove
turt~ocharger
and
return
to
approved
overhaul
station
for
overhaul or
repair.
Leak
in
engine
intake
of
Tighten
loose
connections,
or
replace
exhaust
manifold,
manifold
gaskets
as
necessary.
Rotating
assembly
bean’ng
Remove
turbocharger
and
retum
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.
Critical
altitude
lower
than
Waste
gate
not
properly
Refer
to
Engine
Set-Up
Procedures,
specified,
adjusted.
(25-0001--210999)
Section
71-00-50.
Induction or
exhaust
system
Perform
leak
checks.
leaks.
Compressor
blades
chipped,
Remove
turbocharger
and
return
to
bent
or
missing.
approved
overhaul
station
for
overhaul
OF
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
restn’ction
to
air
flow.
81-20-00
OLDWILLWAYNE