MITSUBISHI 3000GT 1991 Service Manual

WHEEL AND TIRE - Troubleshooting.TROUBLESHOOTING
M31EAAB
at center
Over-inflation orlack of rotation
Inspect the camber
Adjust the unbalanced wheels
weare front suspensionTSB Revision

WHEEL AND TIRE - Service Adiustment ProceduresllFOO1753Y510
Wear indicator
/LateralllFOO1:
1SERVICE ADJUSTMENT PROCEDURES
TIRE INFLATION PRESSURE CHECKM3lFDA.E
Check the inflation pressure of the tires. If it is not within the
standard value, make the necessary adjustment.
TIRE WEAR CHECKMJlFBAC
Measure the tread depth of tires.
Limit: 1.6 mm
(.06 in.)
If the remaining tread depth is less than the limit, replace the
tire.
NOTE
When the tread depth of tire is reduced to 1.6 mm (.06 in.) orless, wear indicator will appear.
WHEEL RUNOUT CHECKM31 FCAEJack up the vehicle so that the wheels are clear of the floor.
While slowly turning the wheel, measure wheel runout with a
dial indicator.
Limit:
Radial2.0 mm
(.08 in.)
Lateral2.0 mm (.08 in.)
If wheel
runout exceeds the limit, replace the wheel.
TSB Revision

32-1
POWER PLANTMOUNT
CONTENTSMZAA- _
ENGINE MOUNTING........................................
3SPECIFICATIONS................................................2
ENGINE ROLL STOPPER
5Service Specifications....................................2....................................
TRANSAXLE MOUNTING................................4RIGHT MEMBER, LEFT MEMBER AND
CROSSMEMBER”................................................6TROUBLESHOOTING........................................2
SPECIAL TOOLSAbnormal Noise....................................................
2
Excessive Engine Wobble or Vibration
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
(1)A Supplemental Restraint System (SRS), which uses a driver-side air bag, has been installed in the 3000GT.(2)The SRS includes the following components: impact sensors, SRS diagnosis unit: SRS warning light, air bagmodule, clock spring, interconnecting wiring. Other SRS-related components (that may have to be
removed/installed in connection with SRS service or maintenance) are indicated in the table of contents byan asterisk (*).
WARNING!(1)Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from
rendering the SRS inoperative).
(2) Service or maintenance of any SRS component or SRS-related component must be performed only at an
authorized MITSUBISHI dealer.(3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B
-Supplemental Restraint System (SRS), before beginning any service or maintenance of any component of theSRS or any SRS-related component.

32-2POWER PLANT MOUNT -Specifications / Special Tools / Troubleshooting
SPECIFICATIONS
SERVICE SPECIFICATIONSM32CB-.
IItemsSpecificationsI
Standard value
No. 1 crossmember
Bushing (B) projectionmm (in.)
Crossmember
Bushing (A) projectionmm (in.)
Bushing (B) projectionmm (in.)7.5
- 10.5 (.30 - .41)
7.2 - 10.2 (.28 - .40)
6.5 - 9.5 (.26 - .37)
SPECIAL TOOLS
Bushing removerand installer
TROUBLESHOOTINGTSB Revision

POWER PLANT MOUNT - Engine Mounting
ENGINE MOUNTING
REMOVAL AND INSTALLATION
32-3
l Raise and Suspend the Engine to the12 Nm
lOO-120Nm(9 ftlbs.
72-87ftlbs. > &6
rI’ I/4
c*1. Connection for air hose G
2. Cruise control pump and link assembly

3. Engine mount bracket and body
connection bolt
4. Engine mount bracket
l *5. Mounting stopper
6. Dynamic damperOlFOO50
3emoval steps
SERVICE POINT OF REMOVALM32GBAK2. REMOVAL OF CRUISE CONTROL PUMP AND LINK
ASSEMBLY
Remove the actuator mounting nuts and place the actuatorwhere it will not interfere with the work.
INSPECTIONM32GCAMl
l Check each insulator for cracks or damage.
l Check each bracket for deformation or damage.
1SERVICE POINT OF INSTALLATIONM32GDAW
5. INSTALLATION OF MOUNTING STOPPER
Attach the engine mounting bracket so that the arrow mark
on the mounting stopper is in the direction as shown in the
illustration.TSB Revision

32-4POWER PLANT MOUNT - Transaxle Mounting
TRANSAXLE MOUNTING
REMOVAL AND INSTALLATION
M32GE- -
45 Nm33 ft.lbs.
/
70 Nm51 ftlbs.
(Refer to GROUP 15 -Air Cleaner.)
(Refer to GROUP 15 -Air Cleaner.)Removal steps
1. Transaxle mount bracket and transaxle
connection bolt
2. Cap3. Transaxle mount bracket installation bolt
4. Transaxle mount bracket
l *5. Mounting stopper
01
FOO44
INSPECTIONM32GCAM2
l Check each insulator for cracks or damage.
l Check each bracket for deformation or damage.
1 Transaxle mount bracketSERVICE POINT OF INSTALLATIONM32GDAX
5. INSTALLATION OF MOUNTING STOPPER
Attach the transaxle mounting bracket so that the arrow
mark on the mounting stopper is in the direction as shownin the illustration.
TSB Revision

POWER PLANT MOUNT - Engine Roll Stopper
ENGINE ROLL STOPPER
REMOVAL ANDINSTALLATION
32-5
MJZGF- .
Pre-removal and Post-installationOperationl Removal and Installation of Condenser
Fan Motor Assembly
(Refer to GROUP 55 - Condenser and
Condenser Fan Motor.)
l Removal and installation of Catalytic
Converter (Left)
(Refer to GROUP 15 -Turbocharger.)
45 Nm/33 ft.lbs.
43
- 51 ftlbs.Front stopper bracket removal steps
1. Front roll stopper bracket and engine
connection bolt
2. Front roll stopper bracket installation bolt
3. Front roll stopper bracket
4. Heat protector

50-60 Nm36 - 43 ft.lbs.Rear roll stopper bracket removal steps
5. Air hose A
6. Air intake hose C
l +7. Rear roll stopper bracket and engine
connection bolt
8. Rear roll stopper bracket installation bolt
+* *+9. Rear roll stopper bracketIO. Heat protector OlFOO30
II\ OlFOO4:
SERVICE POINT OF REMOVALM32GEAL
9. REMOVAL OF REAR ROLL STOPPER BRACKET
(1) Slightly raise the rear roll stopper bracket.
(2) Turn the rear roll stopper bracket in the direction shownin the illustration and lift upward to remove.
INSPECTIONM32GCAM3l Check each insulator for cracks or damage.
l Check each bracket for deformation or damage.
9TSB Revision
SERVICE POINTS OF INSTALLATIONM32GJAC
9. INSTALLATION OF REAR ROLL STOPPER BRACKETInstall the rear roll stopper bracket as shown in the
illustration.7. INSTALLATION OF REAR ROLL STOPPER BRACKET
AND ENGINE CONNECTION BOLT
Install the bolt as shown in the illustration.

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

POWER PLANT MOUNT -Right Member, Left Member and Crossmember32-7
L
L;Crossmember
45 Nm
r-f33 ftlbs.;13emoval steps of crossmember
lFront exhaust pipe
(Refer to GROUP 15 - Exhaust Pipe, MainMuffler and Catalytic Converter.)l Transfer
(Referto GROUP 22-Transfer.)l Stabilizer bar(Refer to GROUP 33A-Stabilizer Bar.)lSteering gear boxro:,Tr to GROUP 37A- Power Steering Gear
13. Self-locking nut
14. Clamp installation bolt (short)
15. Clamp installation bolt (long)
16. Clamp
17. Lower arm mounting bolt18. Stopper19. Rear roll stopper bracket mounting bolt20. Self-locking nut
21. Lower plate
22. Self-locking nut
23. Lower plate
24. Crossmember
25. Stopper B
26. Stopper A
27. Bushing B
28. Bushing A
NOTE*: Indicates parts which should be temporarily tightened, and
then fully tightened with the vehicle in the unladen condition.
Press out
Nut12R0121
Press fit
1MB
INSPECTIONM32YCAC
l Check the crossmember for cracks or deformation.
l Check the bushings for cracks or deterioration.
l Check the right member for cracks or deformation.
l Check the left member for cracks or deformation.
BUSHING A AND B REPLACEMENTM32YDAC
Use the special tool to remove and press in bushings A and B.TSB Revision

32-8POWER PLANT MOUNT -Right Member, Left Member and Crossmember
Front
Rear
OlFOO52
Bushing ABushing B
Inner sleeve
12R012812R0125
Press in bushings A and B so that the arrows on their bottomsurfaces may be directed in the crosswise direction (except
those on No. 1 crossmember of FWD vehicles).
CautiondShifting of the arrow in the direction of rotation shall be
within
1k5” of the crosswise direction.
Press in bushings A and B so that the projecting amount of theinner sleeve agrees with the standard value.
I
Standard value:No.
1 crossmember
Bushing B7.5 - 10.5 mm (.30 - .41 in.)
Crossmember
Bushing A7.2 - 10.2 mm (.28 - .40 in.)
Bushing B6.5 - 9.5 mm (.26 - .37 in.)
CautionWhen pressing in, apply a solution of soap and water to
the sliding part of the bushings, and then press them in
without stopping one after the other.
If there is a pause during the pressing operation, the
frictional resistance will prevent installation.
TSB Revision1