1989 MITSUBISHI GALANT Service Repair Manual

REAR AXLE - Service Adiustment Procedures27-5
REAR HUB ROTARY-SLIDING !RESlSTANCE
(TORQUE) ADJUSTMENTMZ7FCAC
1.
2.
3.
4.
Inspect the play of the bearings while the vehicle is
jacked up and resting on floor jack.
Release the parking brake.
Remove the caliper assembly and the brake disc.
After turning the hub a few times to seat the bearing,
attach a spring balance and rope to the hub bolt, and, pull- ing at a
90” angle from the hub bolt, measure to determine
whether or not the rotary-sliding resistance of the rear hub
is the standard value.
Limit:
5.
6.
Rear hub rotary-sliding resistance
31 N (7 Ibs.) or less
If the rear hub rotary-sliding resistance is exceed, loosen
the nut and then tighten it to the specified torque, and
check the rear hub rotary-sliding resistance again.
Replace the rear hub bearing unit if an adjustment cannot
be made to within the limit.
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27-6REAR AXLE - Rear Axle Hub
REAR AXLE HUB
REMOVAL AND INSTALLATION
6
I 112ElOl
65
Removal steps
1. Hub cap
2. Split pin
3. Lock cap
4. Lock nut
I)+Adjustment of wheel bearing end play
(Refer to P.27-3.)5. Tongued washer6. Outer bearing inner race
7. Rear hub assembly
20+0+10 Nm14+0+7 ft.lbs. llAO025
INSPECTION l Check the surface of bearings for seizure, discoloration or
roughened raceway.
l Check the rear hub for wear or damage.
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REAR AXLE - Rear Axle Hub 27-7
DISASSEMBLY AND REASSEMBLYM27ME-
5
Disassembly steps
-11 A0026
l * 1. Oil seal
2. Inner bearing*e ea 3. Outer bearing outer raceae l c 4. Inner bearing outer race5. Rear hub
Outer bearing
outer race
i
L 12E042
Inner bearing
outer race
Brass rod
4
*+I?(
-‘I!r%i3
LA-APh 12E043
Outer bearingInner bearing
,‘)!=,,I
12E045
MB990938-01
c
SERVICE POINTS OF DISASSEMBLYM27MEAB
3./4.
REMOVAL OF BEARING RACES
Remove the inner and outer bearing outer races by driving
with a brass rod.
INSPECTION
M7.7MFAAO
l Check the oil seal for crack or damage.
lCheck the surface of bearings for seizure, discoloration or
roughened raceway.
l Check the rear hub for wear or damage.
SERVICE POINTS OF REASSEMBLY
M~MOAP.
4./3. INSTALLATION OF BEARING RACES
(1) Install the bearing outer races by using the special
tool as illustrated.
(2) Apply multipurpose grease to the bearings.
1. INSTALLATION OF OIL SEAL
(1) Press the oil seal into the end of the rear hub by using
the special tool.
(2) Apply multipurpose grease to the oil seal lip.
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27-8REAR AXLE -4WD>- Rear Axle Hub
REAR AXLE HUB
REMOVAL AND INSTALLATION
M27MA-A
9-14 Nm7-10 ft.lbs.
50-60 Nm
36-43 ftlbs.
Removal steps
+*1. Rear speed sensor 4*2. Caliper assembly
3. Brake disc
I!jiEl 4
llA0030
4. Hub capl 45.
Nut6.Tonguedwasher
7. Rear hub assembly+*8. Rear rotor 9. Rear hub bearing unit
Rear speedsensor14ROlMI
SERVICE POINTS OF REMOVAL
1. REMOVAL OF REAR SPEED SENSOR
Caution
M27wBAB
When removing the speed sensor from the adapter, be
careful that the end pole piece does not strike the teeth
of the rotor or other parts.
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REAR AXLE - Rear Axle Hub
27-
9
2. REMOVAL OF CALIPER ASSEMBLY
Remove the caliper assembly and suspend it with a piece
of wire.
8. REMOVAL OF REAR ROTOR
Caution
Care must be taken not to scratch or otherwise damage
the teeth of the rotor. The rotor must never be dropped.
If the teeth of the rotor are chipped, resulting in a
deformation of the rotor, it will not be able to accurate- ly detect the wheel rotation speed, and the system will
not function normally.
INSPECTIONM27MFAAI
l Check the oil seal for crack or damage.
l
Check the surface of bearings for seizure, discoloration or
roughened raceway.
l Check the rear hub for wear or damage.
SERVICE POINTS OF INSTALLATION
MnMDAC
5. INSTALLATION OF NUT After tightening the nut, crimp the slit part.
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27-10REAR AXLE - Specifications
REAR AXLE
SPECIFICATIONS
GENERAL SPECIFICATIONSM27cA.B
Items
Axle shaft
Type
Shaft dimensionsOuter bearing portion dia.Inner bearing portion dia.
Center portion dia.
Overall length
Bearing
O.D. x I.D.Outer inner
Drive shaft
Joint typeOuter
Inner
Length (joint to joint) x diameter Iifferential
Reduction gear type
Reduction ratio
AWD AIT
AWD Turbo
Others
Differential gear type and configurationSide gear
Pinion gear
Number of teeth
Drive gear
AWD AA
AWD Turbo
Others
Drive pinion
AWD Turbo
Others
Side gear
Pinion gear Specifications
Semi-floating type
mm (in.) 35 (1.38)
mm (in.) 28 (1.10)
mm (in.) 34.5 (1.36)
mm (in.) 214.9 (8.46)
mm (in.) 72 x 35 (2.83 x 1.38)
mm (in.) 58 x 28 (2.28 x 1.10)
D.O.J.
B.J.
mm (in.) 397 x 24 (15.6
x .94)
Hypoid gear
3.307
3.545
2.846
Straight bevel gear x 2
Straight bevel gear
x 2
43
39
37
11
13
14
10
NOTED.O.J.: Double offset joint
B.J.: Birfield joint
SERVICE SPECIFICATIONS
Mz7cs-s
Items Specifications
Standard value
Rear wheel bearing rotation sliding resistance
Setting of D.O.J. boot length
Final drive gear backlash
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N (Ibs.) 12 (2.6) or less
mm (in.) 7623 (3.00rt.12)
mm (in.) 0.1 l-0.16 (.004-.006)
I

REAR AXLE - SDecifications27-11
Items
Differential gear backlash
Drive pinion rotation starting torque
with oil seal
New part
New part/reusable part
without oil seal New part
New part/reusable part -imit
Rear axle total backlash
Drive gear runout
Rear wheel bearing end play
Differential gear backlash
Specifications
mm (in.) O-0.076 (O-.003)
Nm (in.lbs.) 1.0-1.3
(9-11)
0.5-0.6
(4-5)
Nm
(in.lbs.1 0.9-1.2
(8-10)
0.4-0.5
(3-4)
mm (in.) 5
(2)
mm (in.) 0.05 (.002)
mm (in.) 0.8 (.031)
mm (in.) 0.2 (008)
TORQUE SPECIFICATIONSM27cc-B
ItemsNmft.lbs.
Drive shaft to companion flange 55-6540-47
Axle shaft installation nut 160-220
116-159
Rear brake assembly installation bolts50-6036-43
Speed sensor installation bolts9-1
4
7-10
Differential carrier to crossmember
100-120
72-87
Differential carrier to propeller shaft30-3522-25
Differential carrier to dynamic damper80- 10058-72
Differential support member to bolt 110-130
80-94
Drain plug60-7043-51
Filler plug40-6029-43
Companion flange to drive pinion
160-220
116-159
Bearing cap installation bolt40-6029-43
Drive to differential case
gear80-9058-651
Cover to carriergear30-4222-30
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LUBRICANTS
IItemsSpecified lubricants1 QuantityI
lit. (qts.) 0.7 (74)
B.J. boot grease Repair kit grease
g (oz.) 90 (3.2)
D.O.J. boot grease

27-12REAR AXLE -Specifications/Special Tools
SEALANTS AND ADHESIVESMZICE-
ItemsSpecified sealants and adhesives
Vent plug
3M ATD Part No.8661, or 3M ATD Part No.8663 or equivalent
Differential cover
Drive gear threaded hole3M stud locking Part No.4170 or equivalent
SPECIAL TOOLSM27DA-B
‘nnlNumber NameI Use
idehammer with
Removal of the drive pinion rear bearing inner
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