1991 MITSUBISHI 3000GT wheel alignment

GENERAL - Master Troubleshootina00-27HARD STEERING
L
L
Symptom
Hard steeringProbable causeLoose power steering oil pump belt
Reference page or remedy37A-8
1POOR RETURN OF STEERING WHEEL TO CENTER
Symptom
Poor return of steering wheelto center
Probable cause
Improper front wheel alignment
Improper tire pressure
Excessive tightened rack support cover
Damaged front wheel bearing
Reference page33A-4
31-3
37A-1926-10
Low fluid levelReplenish
Air in power steering system37A-10
Low tire pressure
313
Excessive turning resistance of lower arm ball33A-9joint
Excessively tightened steering gear box
rack support cover
37A-19
Improper front wheel alignment
Excessive turning resistance of tie-rod ball
joint
Sticky flow control valve
Bent rack in steering gear box33A-437A-6
37A-30
37A-19
TSB Revision1

00-28GENERAL - Master Troubleshooting
POOR RIDING
34-5. 13.23, 33
Broken or wornABNORMAL TIRE WEAR
Symptom
Abnormal tire wearProbable cause
lmorooer front or rear wheel alignment, ,
Improper tire pressure
lmbalanced wheels
Loose wheel bearings
Malfunctioning shock absorber
Reference page
33Ad34-5,23
31334-6
LJ33A-5
34-l 3.33
ROAD WANDER
Symptom
Road wanderProbable cause
Improper front or rear wheel alignmentReference page33A&34-5.23
Excessive play of steering wheel
Poor turning resistance of lower arm ball joint37A-533A-9
Improper tire pressure
Loose or worn lower arm bushing31333A-8
III
Loose or worn wheel bearings
Loose rack support cover in steering gear box37A-19
TSB Revision

GENERAL - Master Troubleshootinn
VEHICLE PULLS TO ONE SIDE
Symptom
Vehicle pulls to one sideProbable cause
Improper front or rear wheel alignmentReference page or remedy33A-4
34-5,23
lmbalanced or worn tires
Uneven tire pressure31-3
Excessive turningresistance of lower arm ball33A-9
I--_Wheel beanng serzureReplace
I---Broken or worn coil spring33A-5Ir
~~~~~~Bent front or rear axle drive shaft126-11I
I-Deformed lower arm1 33A-8I
Improper tire pressure31-3
lmbalanced wheelsReplace
Poor turning resistance of lower arm ball joint33A-9
Excessive play of steering wheel37A-5
Broken or weak front stabilizer33A-10
Worn lower arm bushing33A-8
Malfunctioning shock absorber33A-5
34-l 3,33
Broken or weak coil spring
Wear, play, or seizure of wheel bearing
Wear, play, or seizure of drive shaft ball jointReplace
26-l 127-l 8 STEERING WHEEL SHIMMY
SymptomProbable cause
Steering wheel shimmyImproper front or rear wheel alignmentReference page or remedy33A-434-5,23
Boll-OMING
Symptom
BottomingProbable cause
Overloaded vehicleReference page or remedy
Correct
Broken or weak coil spring33A-5
34-l 3.33
IMalfunctioning shock absorber
1 TSB Revision

INTAKE AND EXHAUST - Turbocharger (Front)15-19
05FOO2(
SERVICE POINTS OF REMOVALM15LBAE
19. REMOVAL OF OXYGEN SENSORDisconnect the connector of the oxygen sensor, and install
the special tool to the oxygen sensor.
25. DISCONNECTION OF AIR CONDITIONER COMPRES-
SORDisconnect air conditioner compressor with hoses from the
bracket.
NOTEThe removed air conditioner compressor should be fas-
tened (by using rope, etc.) in a position that will not interfere
with the removal/installation of the turbocharger assembly.
INSPECTION
TURBOCHARGER ASSEMBLY CHECKMlSLCADl
lVisually check the turbine wheel and the compressor wheel
for cracking or other damage.
l Check whether the turbine wheel and the compressor
wheel can be easily turned by hand.
l Check for oil leakage from the turbocharger assembly.
lCheck whether or not the waste gate valve remains open. If
any problem is found, replace the part after disassembly.
OIL PIPE AND OIL-RETURN PIPE CHECKCheck the oil pipe and oil-return pipe for clogging, bending, or
other damage.
If there is clogging, clean it.
SERVICE POINTS OF INSTALLATIONMllLDAE
24. INSTALLATION OF TURBOCHARGER ASSEMBLYClean the alignment surfaces shown in the illustration.
Supply clean engine oil through the oil pipe installation hole
of the turbocharger assembly.
CautionWhen cleaning, care must be taken so that a piece of
the gasket does not enter the oil passage hole.
TSB Revision

INTAKE AND EXHAUST - Turbocharger (Rear)
0
Comrxessorwheel \u ~i, rOlR0182
I05FOO19
SERVICE POINT OF REMOVALM15LBAF
10. REMOVAL OF OXYGEN SENSOR
Disconnect the connector of the oxygen sensor, and install
’the special tool to the oxygen sensor.
d,
INSPECTION
TURBOCHARGER ASSEMBLY CHECK
M15LCADZ
lVisually check the turbine wheel and the compressor wheel
for cracking or other damage.
l Check whether the turbine wheel and the compressor
wheel can be
easily.turned by hand.
l Check for oil leakage from the turbocharger assembly.
lCheck whether or not the waste gate valve remains open. If
any problem is found, replace the part after disassembly.
OIL PIPE AND OIL-RETURN PIPE CHECKCheck the oil pipe and oil-return pipe for clogging, bending, or
other damage.
If there is clogging, clean it.
SERVICE POINTS OF INSTALLATIONMlBLDAF
23. INSTALLATION OF TURBOCHARGER ASSEMBLYClean the alignment surfaces shown in the illustration.
CautionWhen cleaning, care must be taken so that a piece of
the gasket does not enter the oil passage hole.
14. INSTALLATION OF OIL PIPESupply clean engine oil through the oil pipe installation hole
of the turbocharger assembly.
10. INSTALLATION OF OXYGEN SENSORUse the special tool to install the oxygen sensor.
TSB Revision

INTAKE AND EXHAUST - Turbocharger
INSPECTION
TURBOCHARGER
15-25MllLGAB
(I) Manually open and close the waste gate valve to make sure
it operates freely.
(2)Inspect the oil passage in the cartridge for signs of deposits
or blockage.
(3) Clean the inlet section of the compressor cover with a rag.
Inspect it for signs of contact with the compressor turbine.
If worn, replace it.
L/
O-ring
3EN23C3062
snap ring Chamfered
.
v cartr~d~om,,ir
,jFcover
WI61 NO070
SERVICE POINTS OF REASSEMBLYM15LHAC7. INSTALLATION OF O-RING
Coat the inner surface of a new O-ring with a thin film of
engine oil, and set it in the groove of the cartridge
assembly.
Caution
Be careful not to damage the O-ring while installing itas oil leakage could result.
6. INSTALLATION OF CARTRIDGE ASSEMBLY
(1) Coat the outer circumference of the cartridge assembly
O-ring with a thin film of engine oil.
(2) Install the cartridge assembly on the compressor cover
by aligning the dowel pin.
CautionWhen installing the cartridge assembly on the
compressor cover, be careful not to damage the
compressor wheel blades.5. INSTALLATION OF SNAP RING
Place the cartridge assembly with the compressor cover
faced down and install the snap ring.
Caution
Install the snap ring with the tapered side of its outsidediameter up.
TSB Revision4. INSTALLATION OF TURBINE HOUSING
Install the compressor cover and cartridge assembly on the
turbine housing with the dowel pin in alignment.
Caution
1.Be careful not to damage the blades of the turbine
wheel.2. Be careful to install the turbine housing in the
correct direction.

FRONT AXLE - Troubleshooting / Service Adjustment Procedures
TROUBLESHOOTING
26-5
MPBEBAA
i.
Symptom
Vehicle pulls to one
side
Vibration
Shimmy
Excessive noiseProbable cause
Seizure of drive shaft ball joint
Abnormal wear, play or seizure of wheel bearing
Malfunction of front suspension or steering
Bend, damage or abnormal wear of drive shaft
Play in drive shaft and hub serration
Abnormal wear, play or seizure of wheel bearing
Improper wheel alignment
Malfunction of front suspension or steering
Broken boot, grease leakage
Bend, damage or abnormal wear of drive shaft
Play of drive shaft and hub serration
Abnormal wear, play or seizure of center bearing
Abnormal wear, play or seizure of wheel bearing
Loose wheel nut
Malfunction of front suspension and steering
Remedy
Replace
Replace
Adjust or replace
Replace
Replace
Replace
Adjust or replace
Adjust or replace
Replace, repack grease
Replace
Replace
Replace
Replace
Retighten
Adjust or replace
u11 A0285
SERVICE ADJUSTMENT PROCEDURES
HUB END PLAY INSPECTIONM26FAAE1. Jack up the vehicle and remove the front wheels.
2.Remove the disc brake caliper and suspend it with a wire.
(Refer to GROUP 35
- Service Adjustment Procedures.)
3.Attach a dial indicator as shown in the illustration, and then
measure the axial play while moving the hub back and forth.
Limit: 0.05 mm (.002 in.)
4.If axial play exceeds the limit, disassemble and check parts.
,
1 TSB Revision1
i

32-6POWER PLANT MOUNT -Right Member, Left Member and Crossmember
RIGHT MEMBER, LEFT MEMBER AND CROSSMEMBER
I
M32YA- _
REMOVAL AND INSTALLATION
(Referto GROUP 51 -Front Bumper.)No. 1 crossmember, Left member,
Right member
60-70Nm43 - 51 ft.lbs.
11
F=----lL90Nm
’65 ft.lbs.
/I
Post-installation Operationl Installation of Under Cover(Referto GROUP 51 -Front Bumper,)l Air Bleeding of the Power-steeringFluid (Refer to GROUP 37A-Service Adjustment Procedures.)l Adjustment of the Front Wheel
Alignment (Refer to GROUP 33A-Service Adjustment Procedures.)l Supplying of Transfer Oil (Refer to GROUP 00 - Maintenance
Service.)60-70 Nm
43 - 51 ft.lbs.60-70 Nm
43 - 51 ftlbs.
/aa lVOiFOO4760
- 70 Nm’43 - 51 ft.lbs.lemoval steps of No. 1 crossmember,
M member, right member
I. Cover installation screw2. Left member
3. Connection of clutch vacuum hose
4. Vacuum tank installation bolt
5. Right member
6. Vacuum tank
7. Front roll stopper installation bolt
8. No. 1 crossmember installation nut
9. Lower plate
10. No. 1 crossmember
11. Stopper(B)
12. Bushing
(B)
1 TSB Revision1