1991 MITSUBISHI 3000GT Service Manual

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.
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33A-1
FRONT
SUSPENSION
CONTENTSM33AA-A
LOWER ARM........................................................8SPECIFICATIONS................................................2
General Specifications....................................2SERVICE ADJUSTMENT PROCEDURES........4....................................2Front Wheel AlignmentService Specifications....................................4
Wheel Bearing Adjustment............................4STABILIZER BAR,................................................10
SPECIAL TOOLS
....................................................3STRUT ASSEMBLY............................................5
TROUBLESHOOTING........................................3

33A-2FRONT SUSPENSION - Specifications
SPECIFICATIONSM33CA-A
GENERAL SPECIFICATIONS
Items
Coil spring identification colorM/T: Orange x 1
ATT: Orange x 2
Shock absorber
Type
Maximum length
Compressed length
Damping force
[at 0.3 m/set. (0.984 ft./set.)]
Hydraulic, cylindricaldouble acting type
485 + 3 (19.09
f .12)335
I 3 (13.19 + .12)Hydraulic, cylindrical double acting type
485
k 3 (19.09 + .12)335 2 3 (13.19 +
.12)
150 (5.91)
NOTE*: OptionHard
: 2,650 + 360 (584 + 79)
Medium : 1,650 t 230 (363 ?I 51)
Soft : 650 f 100 (143 + 22)
Hard
: 1,200 + 170 (265 * 37)
Medium : 1 ,I 50 k 170 (253 +37)Soft :1,000 z!z 150 (220 + 33
SERVICE SPECIFICATIONSM33CB-A
Camber
Caster
Toe-inmm (in.)
Lower arm ball joint starting torque
Nm (in.lbs.)IO-22 (86-191)
Stabilizer link ball joint starting torqueNm (in.lbs.)1.7 - 3.2 (15 - 28)
Steering angle
Inner wheelTSB Revision

FRONT SUSPENSION - Special Tools / Troubleshooting
SPECIAL TOOLS
L
L
Removalof the lower arm ball joint and
Wheel alignment
gauge attachment
Measurement of the wheel alignment
Spring compressorCompression of the front coil spring
MB990799-01Ball joint remover
and installerInstallation of the dust shield
TROUBLESHOOTINGM33EBAA
SymptomProbable causeRemedy
Steering wheel is heavy,Suspension malfunctionvibrates or pulls toBall joint
Adjust orreplace
one sideCoil springWheel alignment
Unbalanced or worn tiresAdjust or replace
Excessive vehicleBroken or deteriorated stabilizer
rollingShock absorber malfunctionReplace
Poor ridingImproper tire inflation pressureAdjust
Broken or deteriorated coil spring
Shock absorber malfunctionReplace
Inclination of vehicleBroken or deteriorated coil springReplace
NoiseLack of lubricationLubricate
Looseness and wear of each partRetighten or replace
Broken coil spring
Shock absorber malfunction
ReplaceTSB Revision
I

33A-4FRONT SUSPENSION - Service Adjustment Procedures
Strut lowermounting bolt(upper)
\/
0 camber@ camber12FOO31
SERVICE ADJUSTMENT PROCEDURES
M33FBAT
FRONT WHEEL ALIGNMENT‘d
TOE-INStandard value: 0 2 3 mm (0 +
.12 in.)
1. Adjust the toe-in by undoing the clips and turning the left
and right tie rod turnbuckles by the same amount (in
opposite directions).
2.After making the adjustments, use a turning radius gauge to
confirm that the steering wheel turning angle is within thestandard value range. (Refer to GROUP 37A
- Service
Adjustment Procedures.)Standard value:
Inner wheel
33”45’Outer wheel
28”21’
CAMBER AND CASTERStandard value:
Camber0” IL 30’
Caster3”55’ IL 30’
Install the special tool by tightening it to the same torque as
that applied to the drive shaft nut.
a
To adjust camber, turn the strut lower mounting bolt (upper).
One graduation is equivalent to about 20’ in camber. Caster hasbeen factory-adjusted to the standard value and requires no
adjustment.
Caution
1.One camber graduation changes toe by about 0.5 mm
(.02 in.). Be sure to adjust toe after camber has been
adjusted.
2.The difference in camber between right and left shouldbe within
O”30’.
WHEEL BEARING ADJUSTMENTM33FCAA
Bearing preload is pre-set to the specified value by design andtherefore can not be adjusted.
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1

FRONT SUSPENSION - Strut Assembly33A-5
STRUT ASSEMBLY
IREMOVAL AND INSTALLATION
‘=Il Adjustment of Wheel Alignment
M33lA- *
6
45 Nm
2
33 ft.lbs.4!
AI$
c3liI7 // ;I jI ’II ;/ ~I: /I /j j
1
-r11Ii /’ I--‘-
Removal steps
1. Brake hose tube clamo mountina bolt
2. Brake hose tube clam;-,3. Fr;;tSs;eed sensor clamp mountmg nut
4. Front speed sensor clamp
tABS>5. Strut lower mounting bolt
6. Strut upper mounting bolt
7. ECS connector

8. Cap
9. Strut assembly
1 TSB Revision

33A-6
FRONT SUSPENSION - Strut Assembly
DISASSEMBLY AND REASSEMBLYM33LE. -
r----
878 Nm
56 ftlbs.
Caution
When applying the grease, take care
that grease does not adhere to the
insulator’s rubber part.Disassembly stepsI.
Dust shield** l *2. Self-lockrng nut
**3. Strut insulator assembly
4. Spring upper seat assembly
5. Upper spring pad
6. Bump rubber
7. Dust shield
8. Front coil spring
9. Strut assembly
12L0254 1
SERVICE POINT OF DISASSEMBLYM33LFAI2. REMOVAL OF SELF-LOCKING NUT
(1) Holding the spring upper seat with the special tool,
loosen the self-locking nut.
CautionThe self-locking nut should be loosened only, not
removed.
(2) Using the special tools, compress the coil spring, andthen remove the self-locking nut.
NOTEInstall the special tools evenly, and so that the max-
imum length will be attained within the installation
range.