length MITSUBISHI 3000GT 1991 Owner's Manual

REAR AXLE - Specifications
SERVICE SPECIFICATIONS27-7M27CEB
L
ItemsSpecifications
Standard value
Rear wheel bearing rotation torqueN
(Ibs.) [Nm (in.lbs.)l12 (2.6) lo.7 (6)] or less
Setting of T.J. boot length
mm (in.)
85 +_ 3 (3.35 f .12)
Final drive gear backlash
mm (in.)0.11 -0.16(.004-.006)
Differential gear backlash (Limited slip differential)
mm (in.)0.03 - 0.09 (.0012 -.0035)
Drive pinion rotation torque
Nm
(in.lbs.)
With oil seal
New part (with rust-prevention oil)0.5 - 0.7 (4 - 6)
New part/reusable part (gear oil application)
0.35
- 0.45 (3 - 4)
Without oil seal
New part (with rust-prevention oil)
0.3-0.5(3-4)
New part/reusable part (gear oil application)0.15 - 0.25 (1 - 2)
Limit
Rear axle total backlashmm (in.)5 (2)
Drive gear runout
mm (in.)0.05 (.002)
Rear wheel bearing end playmm (in.)0.8 (031)
LUBRICANTSM27CD.~Items
Specified lubricantsQuantity
i
Rear axle gear oilHypoid Gear Oil API classification GL-5 or higher1 .I lit. (1.2 qts.)
Above -23°C (-10°F) SAESO, 85W-90,8OW-90From -34°C (-30°F) to -23°C (-10°F) SAE 8OW, 8OW-90
Below -34°C (-30°F) SAE 75W
B.J. boot grease
T.J. boot greaseRepair kit grease125 g (4.41 oz.)
135 g (4.76 oz.)
SEALANTS AND ADHESIVESM27CE-.
I7.Specrfred sealants and adhesives
Drive gear threaded hole
Vent plug
Differential cover3M Stud Locking Part No. 4170 or equivalent
3M ATD Part No. 8663 or equivalentTSB Revision

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

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.

33B-2ELECTRONIC CONTROL SUSPENSION (ECS) - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
FRONT SUSPENSION
M33CA-B
Coil spring
Effective No. of coils
14.8x170x322.515.0 x 170x331.015.7x170x301.5(.58 x 6.69 x 12.70)(.59 x 6.69 x 13.03)(.62 x 6.69 x 11.87)
Shock absorber
TypeHydraulic, cylindrical double-acting type
485 (19.1)
335 (13.2)
150 (5.9)
Expansion
Hard
Medium
Soft
Contraction
Hard
2,650 (584)
1,650 (364)
.650 (143)
1,200 (265)Pillow ball type
REAR SUSPENSION
ItemsIFWDIAWDI
Suspension systemMulti-link typeDouble-wishbone type
Coil spring
Wire dia. x center dia. x
free lengthmm (in.)
Effective No. of coils(color coded)
12.2x105x350.0(48 x 4.13 x 13.78)
5.5 (orange x 1)12.2x105x379.3(48 x 4.13 x 14.93)
6.8 (blue x 2)
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L
I
iJ
ELECTRONIC CONTROL SUSPENSION (ECS) - Specifications33B-3
Items
Shock absorber
Type
Max. lengthmm (in.)
Min. lengthmm (in.)
Strokemm (in.)
Damping force at 0.3 m/seeI.9 ft.)/sec.N (Ibs
Expansion
Hard
Medium
Soft
Contraction
Hard
Medium
Soft
Stabilizer bar
Mounting method
Outside dia.
mm (in.)FWD
IAWDI
Hydraulic, cylindrical double-acting type
515(20.3)610(24.0)
356(14.0)407(16.0)
159
(6.3)203(8.0)
1,800(397)
1,200(265)
550(121)
950(209)
850(187)
850(143)
10 (.37)
Pillow ball type
M33CB-B~SERVICE SPECIFICATIONS
Rear suspension1'FWDItemsFront suspension
Standard value
Camber0” + 30’0”
k 30’- O”10’ Ik 30’
Caster3”55’ t 30’
Toe-inmm(in.)0+3(0f.12).522.5(.02+.I).5k2.5
SPECIAL TOOLS
ToolNumber
MB991 341
Name
Multi-use tester
sub-assembly
MB991 359ROM packM33DA-B
Use
Inspection of electronic control suspension
system
l Reading and erasing self-diagnosis codesl Reading service datal Actuator testTSB Revision

34-2REAR SUSPENSION - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
Items
Suspension system
Coil spring
Wire dia. x O.D. x free lengthmm (in.)
Coil spring identification color
Spring constantN/mm (Ibs./in.)
Shock absorber
Type
Max. lengthmm (in.)
Min. lengthmm (in.)
Strokemm (in.)
Damping force [at 0.3 m/set. (.9 ftisec.)]
ExpansionN (Ibs.)
ContractionN (Ibs.)aheel
bearing
Type
Vehicles without ECSVehicles with ECS
Multi-link12X95X350
12.2x105x350(47 x 3.74 x 13.78)(.48x4.13x13.78)
Pink x 1
Orange x 1
352 1.8(196? 10.1)35+ 1.8(196+ 10.1)
Hydraulic cylindricaldouble-acting typeHydraulic cylindricaldouble-acting type
515
f 3 (20.2 i .I)515 + 3 (20.2 f .I)
356+3(14.0+.1)356 Ifr 3 (14.0 k .I)
159 (6.3)
159 (6.3)
1,000 + 150 (220 + 33)Hard: 1,800 ? 250 (397 f 55)
Medium: 1,200
rt 170 (265 + 37
Soft: 550
* 90 (121 f 20)
550_+80(121 + 18)Hard: 950 + 140 (209 k 31)
Medium: 850
* 130 (187 f 29)
Soft: 650
t- 100 (143 i 22)
Unit bail bearing
SERVICE SPECIFICATIONSM34CB.A
Items
Specifications
Standard value
Toe-in (Left-right difference)
mm (in.)
Camber
Stabilizer link ball joint starting torque
Nm (in.lbs.)
Ball joint rotation starting torque
Nm (inlbs.)
Stabilizer link protrusion
mm (in.)
Crossmember bushing projection,mm (in.)
I0.5 + 2.5
(.Ol + .09)
0” 2 30’
1.7-3.2(15-28)
2-9(17-78)
5-7(.197-,276)
8.5 - 9.5 (33 - .37)
Limit
Wheel bearing end playmm (in.)
Rear hub rotary-sliding resistance
N (Ibs.)
Rear hub rotary-sliding torqueNm (ftlbs.)0.05
(002) or less
31 (7) or less
1.8 (I .30) or lessTSB Revision

REAR SUSPENSION - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS34-19M34CA-B
Items
Suspension system
Coil spring
Wire dia. x O.D. x free lengthmm (in.)
Coil spring identification color
Spring constantN/mm
(Ibs./in.)Shock absorberType
Max. lengthmm (in.)
Min. lengthmm (in.)
Strokemm (in.)
Damping force [at 0.3 misec. (0.9
ft./set.)]ExpansionN
(Ibs.)Contraction
N (Ibs.)Specifications
Double wishbone suspension type
12.2x105x379.3(.48x4.13x14.93)
Blue x 228.0
2 1.4 (I 57 -t 8)
Hydraulic, cylindrical, double-acting type
610
2 3 (24.0 f .I)407
f 3 (16.0 2 .I)
203 (8.0)Hard: 1,800
+ 250 (397 +- 55)
Medium: 1,200
rtr 170 (265 t 37)
Soft: 550
f 90(121 + 20)
Hard:
950? 140 (209 t 31)
Medium: 850
2 130 (187 + 29)
Soft: 650
f 100 (143 2 22)
SERVICE SPECIFICATIONSM34CB-B
ItemsSpecifications
Standard value
Toe-inmm (in.)0.5
k 2.5(.01 f .09)Camber
-0”lO’ Ifr 30'
Protruding length of stabilizer bar mounting boltmm (in.)5-7
(.197-,276)Lower arm ball joint starting torqueNm (in.lbs.)
2.0-9.0(17 - 78)Stabilizer link ball joint starting torqueNm
(inlbs.)1.7-3.2(15-28)Crossmember support bushing projectionmm (in.)
Upper part
15.5 (.59)Lower part
2.1-3.7(.08-.15)Differential support bushing projectionmm (in.)6.7-7.3
(.26-.29)
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SERVICE BRAKES - Master Cylinder and Brake Booster35-69light
scale14AO471
DISASSEMBLY AND REASSEMBLY
Brake fluid: Conforming to DOT3
Disassembly steps
1. Reservoir cap assembly
2. Diaphragm
3. Reservoir cap4. Filter
5. Brake fluid level sensor
6. Float7. Reservoir stopper bolt
8. Reservoir
9. Reservoir seal
*I)IO. Piston stopper bolt
11. Gasket
a*12. Piston stopper ring
13. Primary piston assembly
a*14. Secondary piston assembly
15. Master cylinder body(3) Measure the dimension
(D)der mounting surface on brake booster and the push
rod end.
NOTETo obtain
(D), first take measurement with a square
placed on the brake booster. Then, subtract the thick-
(D).
(3),push rod and primary piston.
Standard value: A (A
=- C - D)
7
+ 8 inch brake booster
0.55
- 0.75 mm (.022 - .030 in.)
8
+ 9 inch brake booster
0.65
- 0.85 mm (.026 - .033 in.)
(5) If the clearance is not within the standard value range,
adjust by changing the push rod length by turning the
adjustable end of the push rod.
Caution
Improper clearance may cause excessive brake
drag.M35HA-
-
14FOll3
Do not disassemble the primary ancH secondary
piston assembly.
1 TSB’ Revision

STEERING - Power Steering Gear Box3/A-Z/
13A0175
LipMB990776-01
Sealant
I3Y56413AO259
190.6 -192.6mm(7:504 - 7.583in.)193.6 -195.6mm(7.622 - 7.701in.)
13R007:38. INSTALLATION OF TIE ROD
After installing tie rod to rack, fold tab washer end (2
locations) to tie rod notch.
3. INSTALLATION OF DUST SHIELD
(1) Pack dust shield interior and lip with multipurpose
grease.(2) Apply semi-drying sealant to dust shield.
Specified sealant: 3M ART Part No. 8663
or equivalent
(3) Using the special tool, press dust shield to tie rod end.
2. INSTALLATION OF TIE ROD END
Screw in tie rod end to have its right and left length as
illustrated. Lock with lock nut.
TSB Revision1

4-WHEEL STEERING SYSTEM (4WS) - Troubleshooting
TROUBLESHOOTING
37B-3
M37EMKBefore inspecting, check the following items:
l Oil pump drive belt tension
lEnsure that the suspension has not been mod-@Power steering fluid level, and air in the system
ified
l Engine
Idle soeed and even idle
lTire and wheel size, specifications, air pressure,
l Oil leakage
balance and amount of wear
l Steering wheel type
l Wheel alignment
Malfunction symptom
4WS does not operateMalfunctioning system
Power cylinderInspection item
Tie rod swing torque
Power cylinder slide resistance
Rear oil pump
Flow volume check
Control valve
-
Poor steering feelingSteering gears and linkage
Rack cracks or deformationFeeling of friction in steering
Poor steering return
Steering wheel efforts
excessive
Control valve
Oil leakage from control valve jornt
Rear wheels cannot be
steered
Poor rear wheels return
Hydraulic pressure for rear
wheel is constantly high
Long rear wheel steering
delayPoor steering response
Poor steering returnPower cylinder
Oil lineOil reservoir
Control valve
Power cylinder
Rear oil pump
Power cylinder
Oil leakage from piston rod
Pressure hose breakage
Oil reservoir deformation or oil leakage
Stuck control valve spool
Stuck power cylinder
Relief valve remains open
Excessive power cylinder friction-
Looseness in power cylinder tie rod ball jo.int
Ball joint dust cover cracks
Poor rear wheel steeringresponsePoor rear wheel steeringrange
Poor steerability (extremetire wear)Control valve
Power cylinder
Rear oil pump
Power cylinder
Oil leakage from control valve spool
Oil leakage from power cylinder
Extreme oil pump internal wear
Tie rod length improperly adjusted after toe-inadjustment
[ TSB Revision