lock MITSUBISHI 3000GT 1991 Service Manual

I’REAR AXLE
- Axle Shaft
AXLE SHAFT
REMOVAL AND INSTALLATION27-15M27HA- -
i
/
i55-65 Nm
QO - 47 ftlbs.
Iq y 6
50-60Nm
36-4?R.‘bs-
12 Nm9 ft.lbs.
/
190 Nm137 ft.lbs.
260 - 300 Nm188-217ftlbs.
Removal steps
l *1. Rear speed sensora*2. Brake caliper assembly
3. Brake disc
4. Drive shaft mounting nut
+I) l *5. Self-locking nut
6. Washer
7. Companion flange
l *8. Axle shaft assembly+* l +9. Rear rotor

+* l + 10. Outer bearinga* l a 11. Dust shieldl a 12. Dust shield13. Axle shaftl * ** 14. Oil seall * I)+ 15. Inner bearing
/llN0021
llA0325 IllA026~
SERVICE POINTS OF REMOVALM27HBAQ
1.REMOVAL OF REAR SPEED SENSOR
Caution
Be cautious to ensure that the tip of the pole piece doesnot come in contact with other parts when removing
the speed sensor.2. REMOVAL OF BRAKE CALIPER ASSEMBLY
Remove the brake caliper assembly and suspend it with apiece of wire.
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27-16
REAR AXLE - Axle Shaft
MB990241-01
MB990,938-01AY ho"sing
MB990$28-0111 A003865. REMOVAL OF SELF-LOCKING NUT
With the special tool, secure the axle shaft and remove the
companion flange self-locking nut.8. REMOVAL OF AXLE SHAFT ASSEMBLY
With the special tool, remove the axle shaft from the axle
housing.
9.REMOVAL OF REAR ROTOR Remove the rear rotor from the axle shaft.
10. REMOVAL OF OUTER BEARING / 1.1. DUST SHIELDRemove the outer bearing and dust shield concurrently
from the axle shaft.
14. REMOVAL OF OIL SEAL
/ 15. INNER BEARING
With the special tool, remove the inner bearing and oil sealfrom the axle housing.
INSPECTIONhl27HcAGl Check the companion flange for wear or damage.
l Check the dust shield for deformation or damage.
l Check the wheel bearings for burning or discoloration.
l Check the wheel bearing for unsmooth rotation.
l Check the axle shaft for cracking, wear or damage.
l Check oil seal for cracking or damage.
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27-18REAR AXLE - Axle Shaft / Drive Shaft
57-9. INSTALLATION OF REAR ROTOR
Press fit the rear rotor to the axle shaft with the rear rotorgroove surface toward the axle shaft flange.
5. INSTALLATION OF SELF-LOCKING NUT
With the special tool, secure the axle shaft and tighten thecompanion flange self-locking nut.
DRIVE SHAFT
REMOVAL AND INSTALLATIONM27JA-
-55-65 Nm
Removal steps4I)
l 4 2. Driveshaft3.
Circlipl *4. Oil sealllNO020
SERVICE POINT OF REMOVAL2. REMOVAL OF DRIVE SHAFT
Using a tire lever, etc. remove the
differential carrier.TSB Revision
drive shaftfrom the
M27JBAE

27-26
REAR AXLE - Differential Carrier
SERVICE POINTS OF INSTALLATION
7. INSTALLATION OF DIFFERENTIAL CARRIERm27lDAL
Install the rear wheel oil pump by inserting it through the
mounting hole and install the differential carrier securely.\yiIlYl61
Caution
Use care not to damage the rear wheel oil pump gears.
3. CONNECTION OF PROPELLER SHAFTAlign the mating marks on the flange yoke and the
companion flange to install the propeller shaft.
INSPECTION BEFORE DISASSEMBLYM27lEAJHold the working base in a vice, and attach the differential
carrier to the working base.
FINAL DRIVE GEAR BACKLASH
With the drive pinion locked in place, measure the final drivegear backlash with a dial indicator on the drive gear.
NOTEMeasure at four points or more on the circumference of the
drive gear.d’Standard value: 0.11
- 0.16 mm (.004 - .006 in.)IDRIVE GEAR
RUNOUTI
Measure the drive gear runout at the shoulder on the reverseside of the drive gear.
Limit: 0.05 mm
(.002 in.)
FINAL DRIVE GEAR TOOTH CONTACT
Check the final drive gear tooth contact by following the steps
below.
(1) Apply a thin, uniform coat of machine blue to both surfaces ’of the drive gear teeth.
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DISASSEMBLYREAR AXLE
- Differential Carrier27-29
M27lF- -
inspection Before Disassemblyl Final Drive Gear Backlash(Refer to P.27-26.)l Drive Gear Runout(Refer to P.27-26.)l Final Drive Gear Tooth Contact(Refer to P.27-26.)Disassembly steps
1. Differential cover assembly2.Vent plug
3.Oil seal
4.Snap ring4*5. Side bearing nut4*6. Side bearing outer race7. Differential case assembly4*8. Side bearing inner race4*9. Drive gear (for 4WS)4*10. Drive gear
11. Spring pin (for 4WS)4*12. LSD case (refer to P.2759.)4*13. Self-locking nut14:Washer
4*
4*
4*4*4*
64 111 FO032
15. Drive pinion assembly
16. Companion flange
17. Drive pinion front shim
(for preload adjustment)18. Drive pinion spacer19. Drive pinion rear bearing inner race20. Drive pinion rear shim
(for pinion height adjustment)
21. Drive pinion
22. Oil seal
23. Drive pinion front bearing
24. Drive pinion rear bearing outer race
25. Differential carrier’
SERVICE POINTS OF DISASSEMBLYM27lGBD5. REMOVAL OF SIDE BEARING NUT
Using the special tool, remove the side bearing nut.
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27-30REAR AXLE - Differential Carrier
VlB990811-01
J6. REMOVAL OF SIDE BEARING OUTER RACE
(I) Using a press, push the differential case until it is
pressed against the carrier.
(2) Remove the differential case from the press. Insert two
spacers in diagonally opposed positions between the‘dside bearing outer race to be removed and the inner
race. Using the press again, remove the outer race.
CautionUse care not to drop the side bearing outer race.
NOTE(1) Identify the right- and left-hand side bearing outer
races for correct reassembly.
(2) Use a spacer, approx. 30 mm (I. 18 in.) long, 10 mm
I.39 in.) wide and 1 to 2 mm (.04 to .08 in.) high,
made of copper sheet or the like to prevent damageto the bearing.
8.REMOVAL OF SIDE BEARING INNER RACES / 9. DRIVE
GEAR (FOR 4WS)
Pull out the side bearing inner races by using the special
tools.
10. REMOVAL OF DRIVE GEAR
(I) Make the mating marks to the differential case and the
drive gear.(2) Loosen the drive gear attaching bolts in diagonal
sequence to remove the drive gear.
13. REMOVAL OF SELF-LOCKING NUTUse the special tools to hold the companion flange and
remove the companion flange self-locking nut.
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27-32
REAR AXLE - Differential Carrier
REASSEMBLYM2711- .
1Reassembly steps
**1. Spring pin (for 4WS)l *2. Drive gear (for 4WS)3. Differential carrierl *4. Drive pinion rear bearing outer race**5. Drive pinion front bearing outer race*aDrive pinion height adjustment
6. Drive pinion
7. Drive pinion rear shim
(for drive pinion height adjustment)
8. Drive pinion rear bearing inner race
9. Drive pinion spacer
l *Drive pinion preload adjustment10. Drive pinion front shim
11. Drive pinion assembly
12. Drive pinion front bearing inner race
13. Oil seal
14. Companion flange
15. Washer
16. Self-locking nut
17. LSD case (Refer to
P.27-39.)** 18. Drive gear** 19. Side bearing inner race
20. Side bearing outer race
l *Final drive gear backlash adjustment21. Differential case assembly
22. Side bearing nut
23. Snap ring
** 24. Oil seal
25. Vent plug
26. Differential cover assembly
NOTE*:Tightening torque with oil applied.TSB Revision

REAR AXLE - Differential Carrier
27-33
Lubrication, Sealing and Adhesion Points
L
11lwO.llFOO11
Sealant: 3M AID Part No. 8663 or equivalentllFO032
Adhesive: 3M Stud Locking Part
No. 4170 or equivalent
Spring pinDjive gear
View A
ilA0262llA0261
SERVICE POINTS OF REASSEMBLYM27UBG
1. INSTALLATION OF SPRING PIN (FOR
4WS)
Tap the spring pin into the differential case to the position
shown in the illustration before
press fitting the rear wheel
oil pump drive gear. The notch on the spring pin should bein the position shown in the illustration.
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27-36REAR AXLE - Differential Carrier
:$.:::..::..&‘p
.!I Ia
.:...:.:::.:B. . ..i
\Grease
J
11 D55411223(5) Remove the companion flange and drive pinion once
again.
Drive the oil seal into the qear carrier front lip by using_
the special tool.Apply multipurpose grease to the oil seal lip.
(6) Apply a thin coat of multipurpose grease to the
companion flange contacting surface of the washer
before installing drive pinion assembly.
(7) Install the drive pinion assembly and companion flangewith mating marks properly aligned, and tighten the
companion flange self-locking nut to the specified
torque by using the special tools.
(8) Measure the drive pinion rotation torque (with oil seal)
to verify that the drive pinion rotation torque complies
with the standard value.
Standard value
Bearing
classificationBearrng
lubricationRotation torqueNm (in.lbs.)
Nt?WNone (with
0.5 - 0.7rust-prevention oil)(4 - 6)New/reused
Gear oil0.35 - 0.45
application
(3 - 4)If there is a deviation from the standard value, check
whether or not there is incorrect tightening torque of
the companion flange tightening self-locking nut, or
incorrect fitting of the oil seal.
18. INSTALLATION OF DRIVE GEAR
(I) Clean the drive gear attaching bolts.
(2) Use an Ml0 x 1.25 tap to remove the adhesive adhering
to the threaded holes of the drive gear, and then cleanthe threaded holes by applying compressed air.
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REAR AXLE - Differential Carrier27-37
III IllFO024
llFO021
When backlash is
1 When backlash is 1
(3) Apply multipurpose adhesive to the threaded holes ofthe drive gear.
Specified adhesive: 3M Stud Locking Part No. 4170or equivalent
(4) Install the drive gear onto the differential case with the
mating marks properly aligned. Tighten the bolts to the
specified torque in a diagonal sequence.
19. PRESS-FITTING OF SIDE BEARING INNER RACE
Press-fit the side bearing inner races to the differential caseby using the special tool.
. FINAL DRIVE GEAR BACKLASH ADJUSTMENT
(1) Using the special tool, temporarily tighten the side
bearing nut until it is in the state just before preloadingof the side bearing.
(2) Measure the final drive gear backlash.
Standard value: 0.11
- 0.16 mm (.004 - .006 in.)
NOTE
Measure at four or more points around the drive gear
circumference.(3) Using the special tool (MB991367 and
MB991385),adjust the backlash to standard value by moving the
side bearing nut as shown.
NOTE
First turn the side bearing nut for loosening, and thenturn (by the same amount) the side bearing nut for
tightening.
excesswe 1102671TSB Revision