MITSUBISHI GALANT 1989 Service Repair Manual

27-1
mnAA-

AXLE SHAFT...................................................17
DIFFERENTIAL CARRIER................................26
DRIVE SHAFT.................................................. 20
SERVICE ADJUSTMENT PROCEDURES.......
15
Gear OilLevelCheck ...................................15
Rear Axle Total Backlash Check.................15
Rear Wheel Bearing End Play Check.........15
Rear Wheel Bearing Rotation Sliding
Resistance Check .........................................16
REAR AXLE HUB
SPECIAL
TOOLS.............................................12
SPECIFICATIONS
.............................................10
GeneralSpecifications..................................10
Lubricants
......................................................11
Sealants
andAdhesives...............................12
Service Specifications...................................10
TorqueSpecifications
...................................11
TROUBLESHOOTING ......................................14
Axle Shaft
Grease leakage
Noise while wheels are rotating
Differential
Bearing noise while driving or coasting
Constant noise
Gear noise while coasting Gear noise while driving
Heat
Noise while turning
Oil leakage
Drive Shaft
Noise
BRAKES>
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
REAR AXLE HUB
BRAKES>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . .
SERVICE ADJUSTMENT PROCEDURES . . . . . . .h3
Rear Hub Rotary-Sliding Resistance
(Torque)Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .5
Wheel Bearing End Play Adjustment . . . . . . . . . .3
SPECIAL
TOOLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . .2
General Specifications . . . . . . . .
.._.......................2
Service Specifications . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
TROUBLESHOOtING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .2
Abnormal Sound

27-2REAR AXLE - Specifications/Troubleshooting
REAR AXLE
SPECIFICATIONS
GENERAL SPECIFICATIONSM2?CA-A
Items
Wheel bearing
Type
O.D. x I.D.
Outer
inner SOHC
DOHC
Tapered roller bearing
Unit ball bearing
mm (in.)
39.9 x 17.5 (1.57 x ,691-
50.3 x 27.0 (1.98 x 1.06)-
SERVICE SPECIFICATIONShl27CEA
Items
Standard value
Rear hub rotary-sliding resistance
When a new bearing is used
When the bearing is reused
Limit Wheel bearing end playRear hub rotary-sliding resistance
SOHC
N (Ibs.)
14 (3.08) or less
11 (2.42) or less
mm (in.)
-
N (Ibs.) -
DOHC
-
-
0.05 i.020) or less
31
(7) or less
1i-ORQUE SPECIFICATIONS MnCGA
Items
Wheel bearing nut (vehicles with rear drum brakes)
Wheel bearing nut (vehicles with rear disc brakes)
Caliper assembly mounting nut
Feed tube to rear oil pump
Rear hub to rotor
Rear oil pump attaching bolt
Rear speed sensor brackets
Nmft.lbs.
20 + 0 + IO14+0+7 200-260
144-188
50-6036-43
14-21
IO-15
9-147-10
19-2814-20
9-1
4
7-10
TROUBLESHOOTINGM27EA-A
Symptom
Abnormal SoundProbable cause
Loose wheel nuts
Damaged or worn wheel bearings
Bent or distorted brake discs or drums
Remedy
Tighten
Replace
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REAR AXLE - Special Tools/Service Adjustment Procedures27-3
SPECIAL TOOLS
MZ7VA-A
ToolNumber
GENERAL
SERVICE TOOL
NameUse
Bearing and oil sealinstaller setInstallation of outer bearing outer race
Installation of inner bearing outer race Installation of oil seal
M B990938-01Handle
MB990890-01Bushing removerand installer baseInstallation of the drive gear
OPTIONAL: AVAIlABLE FROM O.T.C.
Turn 180” or more
360” or more.
SERVICE ADJUSTMENT PROCEDURES
WHEEL BEARING END PLAY ADJUSTMENTmw

1.Inspect the play of the bearings while the vehicle is jacked
up and resting on floor jack.
2.If there is any play, remove the hub cap, cotter pin, and lock
cap, and then loosen the lock nut.
3.After tightening the lock nut to 20 Nm (14 ft.lbs.1, turn the
hub a few times to seat it to the bearing.
4. In order to seat the bearing properly, turn the hub (brake drum) 180” or more and then return it 360” or more; repeat
this procedure again three or more times.
5. Return the lock nut to 0 Nm
(0 ft.lbs.).
6.After tightening the lock nut at a torque of 10 Nm (7 ft.lbs.1,
rotate the hub again in the same way as described in step 4
so as to seat the bearing.
7. Then once again tighten the lock nut to 10 Nm (7
ft.lbs.).
8. Install the lock cap and cotter pin. If the position of the cotter pin is not matched with the
holes of the lock cap, reposition the lock cap so that the
holes align. If this can not be accomplished, back off the nut
by not more than 15”.
Caution
Check to be sure that the lock nut cannot be loosened
manually.
9.After setting the cotter pin in place, seat the bearing in the
same manner as in step 4.
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27-4REAR AXLE - Service Adjustment Procedures
11 PO033
10. After securing the wheel nuts, attach a spring balance and
rope to the hub bolt, and, pulling 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.
Standard value: Rear hub rotary-sliding resistance
When a new bearing is used 14
N (3.08 Ibs.) or less
When the bearing is reused 11
N (2.42 Ibs.) or less
NOTE
If the standard value is exceeded, the lock nut should be
tightened or the bearing replaced.
11. Check the bearing’s end play.
Place a dial gauge against the hub surface; then move the
hub in the axial direction and check whether or not there is
end play.
Limit: 0 mm (0 in.)
12. If there is any play, the lock nut should be tightened or the
bearing replaced.
13. After checking, be sure the hub rotates smoothly and that
the cotter pin is correctly installed.

1. Inspect the play of the bearings while the vehicle is jacked up and resting on floor jack.
2. Remove the hub cap and then release the parking brake.
3. Remove the caliper assembly and the brake disc.
4. Check the bearing’s end play.
Place a dial gauge against the hub surface; then move the
hub in the axial direction and check whether or not there is
end play.
Limit: 0.05 mm (.0020 in.) or less
NOTE
If the limit value is exceeded, the lock nut should be
tightened to the specified torque and check the end play
again.
5.Replace the rear hub bearing unit if an adjustment cannot
be made to within the limit.
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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.
1 TSB Revision

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
TSB Revision
N (Ibs.) 12 (2.6) or less
mm (in.) 7623 (3.00rt.12)
mm (in.) 0.1 l-0.16 (.004-.006)
I