1991 MITSUBISHI 3000GT service

31-1
ii~
WHEEL.I
AND TIRE~
CONTENTSM3IA& -
SERVICE ADJUSTMENT PROCEDURES............4TROUBLESHOOTING:...........................................3
Tire Inflation Pressure Check................................4Bald Spots
Tire Wear Check....................................................4
Cracked Treads
Wheel Runout Check............................................4Feathered Edge
SPECIFICATIONS2Rapid Wear at Center....................................................
General Specifications2Rapid Wear at Shoulders........................................
Service Specifications........................................2Scalloped Wear
Torque Specifications2Wear on One Side............................................

31-2WHEEL AND TIRE - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
MOICA- -
‘\
Items
Wheel
Tire size
Wheel type
Wheel size
Amount of wheel offsetmm (in.)
Tire inflation pressure
kPa (psi)
Front
Rear
DOHC-N/A
225l55R 16 93U
Aluminum type
16X8J ’
46 (1.8)
220 (32)
200 (29)DOHC-T/C
245145ZR 17
Aluminum type
17 x
8.5J
46 (1.8)
220 (32)
200 (29)
Spare wheel
Tire size
T125190D16T135/90D16
Wheel size
l6x4Tl6x4T
Amount of wheel offsetmm (in.)46 (1.8)46 (1.8)
Tire inflation pressurekPa (psi)
420 (60)420 (60)
SERVICE SPECIFICATIONSM31CB. -
Items
Specifications
Limit
Wheel
runout
Radialmm (in.)2.0 (.08)
Lateralmm (in.)2.0 t.08)
Tread depth of tiremm (in.)1.6 (.06)
TORQUE SPECIFICATIONSMBlCC- -
ItemsNm
Hub nuts120- 140
ft.lbs.
87-iO1TSB 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.
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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.
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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.