suspension MITSUBISHI 3000GT 1991 Workshop Manual

REAR SUSPENSION -Upper Arm, Lower Arm and Assist Link34-9UPPER ARM, LOWER ARM AND ASSIST LINK
iREMOVAL AND INSTALLATION
LPre-removal Operation
l Removal of the Shock Absorber
(Refer to P.34-13.)Post-installation Operation
l Check of Wheel Alignment
(Refer to P.34-5.)l Installation of the Shock Absorber
(Refer to P.34-13.)Upper arm removal steps
1. Brake line clamp bolta*2. Self-locking nut
140- 160 Nm*IOl-116ft.lbs.”\
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2
/7
75-89Nm54 - 64 ft.lbs.
140 - 160 Nm*101 - 116ft.lbs.*
8
3. Upper arm mounting bolt and nut
4. Upper armLower arm removal steps
5. Lower arm mounting bolt and nutl *6. Self-locking nut
7. Lower armAssist link removal steps
8. Assist link mounting bolt and nut4*9. Self-locking nut10. Assist link
NOTE*:indicates parts which should be temporarily tightened, and
then fully tightened with the vehicle in the unladen
condition.
M34SA-S
Dustcover
rz412R0487
12A009$3TSB Revision
SERVICE POINTS OF REMOVALMSBAB2. 6. 9. REMOVAL OF SELF-LOCKING NUT
Using the special tool, disconnect the knuckle from the
upper arm, lower arm, and assist link.
NOTE(1) Do not remove the nut from the ball joint, but just
loosen it.
(2) Suspend the special tool with a rope to prevent it from
dropping.

REAR SUSPENSION -Upper Arm, Lower Arm and Assist Link
INSPECTIONM34SCABl Check the bushing for wear and deterioration.
l Check the upper, lower arm or assist link for bend or
breakage.l Check the ball joint dust cover for cracks.
l Check all bolts for condition and straightness.d12ROl
Removaling12NOlOl
CHECKING OF BALL JOINT FOR STARTING TORQUEMount two nuts on the ball
.joint, and then measure the ball
joint starting torque.
Standard value: 2
- 9 Nm (17 - 78 in.lbs.)
BALL JOINT DUST COVER REPLACEMENTM34SEABl
(1) Remove the dust cover.
(2) Apply multipurpose grease to the lip and inside of the dust
cover.(3) Drive in the dust cover with special tool until it is fully
seated.‘dLOWER ARM, UPPER ARM, ASSIST LINK
BUSHING REPLACEMENTM34SFABUse the special tool to remove and press-fit the bushing.
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REAR SUSPENSION - Trailing Arm34-11
TRAILING ARMM34TA-A
t’REMOVAL AND INSTALLATION
,’
i;
18
90Nm* A65ft.lbs.* 15Post-installation Operation
lCheck of Wheel Alignment
‘Refer to P.34-5.)>heck of Parking Brake Lever Stroke(Refer tn GROIJP 36 - Service Adiustment
r/A -50-60Nm36 - 43ftlbs.
(Refer to GROUP 35 -Service Adjustment
-160Nm* -- 116ft.lbs.*Removal steps
1. Brake caliper mounting bolt
2. Brake caliper
3. Brake line clamp bolt
4. Rear brake disc5. Hubcap
6. Wheel bearing nut
7. Hub assembly
8. Parking brake cable clamp bolt*I) I)*9. Parking brake cable end (Refer to GROUP 36- Parking Brake.)IO. Rear speed sensor clamp bolt (ABS)
11. ABS speed sensor (ABS)
36 - 43 ftlbs.12FOlll
12. Backing plateI)+ 13. Stabilizer link mounting nutl I)14. Self-locking nut
15. Shock absorber mounting bolt (upper)
l *16. Self-locking nutl *17. Self-locking nut
18. Trailing arm mounting bolt and nut
19. Trailing arm assembly
NOTE*:indicates parts which should be temporarily tightened, and
then fully tightened with the vehicle in the unladen
condition.
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34-12REAR SUSPENSION - Trailina Arm
I12A009E
Pressure fittingRemoval
MB991 38912N009t
_ Hold with
wrenchA12AOlOC
SERVICE POINTS OF REMOVALM34TBAB14.16. 17. REMOVAL OF SELF-LOCKING NUT
Using the special tool, remove the knuckle from the lower,arm, upper arm, and assist link.
NOTE
(1) Do not remove the nut from the ball joint, but just
loosen it.
(2) Suspend the special tool with a rope to prevent it from
dropping.
INSPECTIONM34TCABl
l Check trailing arm for cracks and deformation.
l Check bushing for cracks, deterioration and wear.
TRAILING ARM BUSHING REPLACEMENTM34TEABl
Use the special tool to remove and press-fit the bushing.
SERVICE POINT OF INSTALLATIONM34lDAA
13. INSTALLATION OF STABILIZER LINK MOUNTING NUTHolding the stabilizer link with a wrench, tighten the
self-locking nut so that the protrusion of the stabilizer link
(dimension A indicated in illustration) is within the standard
,,
value.dStandard value: 5
- 7 mm
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(.197 -.276 in.)I

REAR SUSPENSION - Shock Absorber Assembly
SHOCK ABSORBER ASSEMBLYM34NA-A
iREMOVAL AND INSTALLATION
L
i
Pre-removal and Post-installation Operationl Removal and Installation of the Rear Side TrimRemoval steps
1. Shock absorber upper mounting nut
2. ECS connector (ECS)3. Cap
4. Brake line clamp bolt
5. Shock absorber lower mounting bolt
6. Shock absorber
NOTE*:indicates parts which should be temporarily tightened, and
then fully tightened with the vehicle in the unladen
condition.
45 Nm33 ft.lbs.12FOO87
DISASSEMBLY AND REASSEMBLYM34GMA
20-25 Nm
Disassembly steps
l * l a1, Piston rod tiahtenina nut2. Washer d u3. Upper bushing (A)** 4. Bracket assembly5. Upper spring pad6. Upper bushing (B)7.Collar
8.Cup assembly9.Dust cover10.Bump rubber+* 11. Coil spring12.Shock absorber
3
4
7
5
6
8
10
1280325:
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34-14REAR SUSPENSION - Shock Absorber Assemblv
12K(u9
‘7
Coil
,’I
seat12A0049
SERVICE POINT OF DISASSEMBLYM34GNAB1. REMOVAL OF PISTON ROD TIGHTENING NUT
(1) Before removing the piston rod tightening nut, corn-
press the coil spring using the special tool.
d(2) While holding the piston rod, remove the piston rod
tightening nut.
INSPECTIONM34GOACl
l Check the rubber parts for damage.
lCheck the coil springs for crack, damage or deterioration.
SERVICE POINTS OF REASSEMBLYM34GPAC
11. INSTALLATION OF COIL SPRING(1) Use the special tool
(MB990987-01) to compress the
coil spring and insert it in the shock absorber.
(2) Align the edge of the coil spring to the position of the
shock absorber spring seat as shown.
4. INSTALLATION OF BRACKET ASSEMBLY / 1. PISTONROD TIGHTENING NUT
(1) With the position of the bracket assembly as shown inthe figure, tighten the tightening nut to the specified
torque.
(2) Install the coil spring so that the lower edge fits into thespring seat groove and the upper edge fits into the
spring pad groove, then remove the special tool
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(MB990987-01).L/iTSB Revision

REAR SUSPENSION - Stabilizer Bar34-15
STABILIZER BARM341A.A
/REMOVAL AND INSTALLATION
i
,’
id
Removal steps
1. Stabilizer bracket mounting boltl *2. Stabilizer bar bracket
3. Bushing
l *4. Self-locking nut
5. Joint cup (A)6. Stabilizer rubber
7. Joint cup (B)l * 8. Self-locking nutl *9. Stabilizer link10. Joint cup (A)11. Stabilizer rubber
12. Stabilizer bar
-5
t:(I
-Z’-
@+-----4l?FOlOO
1210241
INSPECTIONMWBACll Check the bushing for wear and deterioration.
l Check the stabilizer bar for deterioration or damage.
l Check the stabilizer link ball joint dust cover for cracks.
l Check all bolts for condition and straightness.
CHECKING OF STABILIZER LINK BALL JOINT FOR START-
ING TORQUE
Mount two nuts on the ball joint, and then measure the ball
joint starting torque.
Standard value: 1.7
- 3.2 Nm (15 - 28 in.lbs.1
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34-16
REAR SUSPENSION - Stabilizer Bar
CGrinafiMultipurpose
grease
12LO21-
\12LO24:Hold with
wrench
BALL JOINT DUST COVER REPLACEMENTMWEAA
(1) Remove the clip ring and the dust cover.
(2) Apply multipurpose grease to the lip and inside of the dust
cover.
(3) Use vinyl tape to tape the stabilizer link where shown in the
illustration, and then install the dust cover to the stabilizer
link.
(4) Secure the dust cover by the clip ring.
SERVICE POINTS OF INSTALLATIONM341CAE
9. INSTALLATION OF STABILIZER LINK
/ 8. SELF-LOCKING NUT
/ 4. SELF-LOCKING NUT
(I) Hold the stabilizer link ball studs with a wrench and
install the self-locking nut (A).
(2) Holding the stabilizer link with a wrench, tighten the
self-locking nut
(B) so that the protrusion of the
stabilizer link is within the standard value.
Standard value: 5
- 7 mm (197 - .276 in.)
2. INSTALLATION OF STABILIZER BAR BRACKET
(1) Align the bushing (L.H.) with the stabilizer bar marking
end and temporarily tighten the stabilizer bar bracket
(L.H.).(2) In this condition, mount the stabilizer bar bracket
(R.H.)and temporarily tighten it.
(3) Temporarily fix the both ends of the stabilizer bar to the
link and tighten the stabilizer bar bracket mounting bolts
to specification.
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REAR SUSPENSION - Rear Axle Hub
REAR AXLE HUB34-17
REMOVAL AND INSTALLATION
50-60Nm36 - 43 ftlbs.
1
Removal steps
*I)I, Rear speed sensor a*2. Caliper assembly
3. Brake disc
4. Hubcap
l +5. Wheel bearing nut
6. Tongued washer
7. Rear hub assembly
*I)8. Rear rotor 9. Rear hub unit bearing
Caution
Rear hub unit bearing cannot be disassembled.
llN0018
14NOlO14N009E
SERVICE POINTS OF REMOVALM34MBAC
1.REMOVAL OF REAR SPEED SENSOR ABS>Caution
Be careful when handling the pole piece at the tip of the
speed sensor and the toothed edge of the rotor so as
not to damage them by striking against other parts.
2. REMOVAL OF CALIPER ASSEMBLY
Remove the caliper assembly and suspend it with a piece of
wire.
8. REMOVAL OF REAR ROTOR ABS>Caution
Care must be taken not to scratch or scar the rotor’s
toothed surface, and not to drop it.
If the rotor’s toothed surface is chipped or the rotor is
deformed, it might not be able to accurately sense the
wheel rotation speed and the system as a result might
not perform normally.
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34-18
REAR SUSPENSION - Rear Axle Hub
Spindle
_’ ,14NOOOt
SERVICE POINT OF INSTALLATIONM34MDAG5. INSTALLATION OF WHEEL BEARING NUT
After tightening the wheel bearing nut, align with the
spindle’s indentation and crimp.
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