MITSUBISHI LANCER EVOLUTION IV 1998 Workshop Manual

MANUAL TRANSMISSION OVERHAUL – Transfer22B-51

FAIR BREATHER INSTALLATION
Apply sealant to the air breather.
Specified sealant: THREEBOND 1501

26-1
FRONT AXLE
CONTENTS
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
SPECIAL TOOLS 2. . . . . . . . . . . . . . . . . . . . . . . . AXLE HUB AND KNUCKLE 3. . . . . . . . . . . . . .

FRONT AXLE – Service Specifications / Special Tools26-2
SERVICE SPECIFICATIONS
ItemsLimit
Hub axial play mm0.05
Hub rotation starting torque Nm {kgf
m}1.8 {1.8}
SPECIAL TOOLS
ToolNumberNameUse
MB990635 or
MB991113Steering linkage
pullerBall joint disconnection
MB990767End holderFixing of hub
MB991354Puller bodyRemoval of drive shaft
AB
MB990241
A: MB990242
B: MB990244Axle shaft puller
A: Puller shaft
B: Puller bar
A: MB991017
B: MB990998
C: MB991000A, B: Front hub
remover &
installer
C: Spacer
Temporary fixing of unit bearing

Measurement of hub rotation starting
torque

Measurement of hub axial play
Use MB991000 (component of
MB990998) for the spacer.
MB990326Preload socketMeasurement of hub rotation starting torque

FRONT AXLE – Axle Hub and Knuckle26-3
AXLE HUB AND KNUCKLE
REMOVAL AND INSTALLATION
Post-installation Operation

Check the Dust Cover for Cracks or Damage by
Pushing it with Finger.
1
23
45 6 7
8
910
1112
13
Unit: Nm {kgf
m}
88 {9.0} 108 – 127
{11.0 – 13.0}
90 – 110
{9.2 – 11.2}
15 – 33
{1.5 – 3.4}177 – 275
{18.0 – 28.0} 25 {2.6}
25 {2.6}
9 {0.9}
113 {11.5}
Removal steps
1. Front speed sensor
<Vehicles with AYC>
A2. Caliper assembly
3. Brake disc
4. Split pin
BA5. Drive shaft nut
6. Front hub assembly
7. Dust shield
8. Connection for lower arm ball joint
9. Split pin
C10. Connection for tie rod end
D11. Front drive shaft
12. Front strut mounting bolt
13. KnuckleCaution
(1) For vehicles with AYC, be careful when handling
the pole piece at the tip of the speed sensor
so as not to damage it by striking against other
parts.
(2) For vehicles with AYC, be careful not to damage
the rotors installed to B.J. outer race during
removal and installation of the drive shaft.

FRONT AXLE – Axle Hub and Knuckle26-4
REMOVAL SERVICE POINTS
ACALIPER ASSEMBLY REMOVAL
Secure the removed caliper assembly with wire, so that it
does not fall.
BDRIVE SHAFT NUT REMOVAL
Caution
Do not apply the vehicle weight to the wheel bearing
while loosening the drive shaft nut.
CTIE ROD END DISCONNECTION
Use the special tool to disconnect the ball joint.
Caution
(1) Use the special tool to loosen the nut only; do not
remove it from the ball joint.
(2) Tie the special tool with a cord not to let it fall off.
DDRIVE SHAFT REMOVAL
INSTALLATION SERVICE POINT
ADRIVE SHAFT NUT INSTALLATION
(1) Install the drive shaft washer in the specified direction.
(2) Using the special tool, tighten the drive shaft nut.
Caution
Before securely tightening the drive shaft nuts, make
sure there is no load on the wheel bearings.
(3) If the position of the split pin holes does not match, tighten
the nut up to the first matching holes.
Install the split pin and bend it securely.
MB990767
MB990635 or
MB991113
Ball joint
CordNut
MB990767
MB990242MB991354
MB990244 (3)
177 – 275 Nm
{18.0 – 28.0 kgf
m}
Washer
MB990767

FRONT AXLE – Axle Hub and Knuckle26-5
INSPECTION
1. HUB ROTATION STARTING TORQUE CHECK
(1) Install the special tool to the front hub assembly and
tighten the nut to the specified torque.
(2) Use the special tool to measure the hub rotation starting
torque.
Limit: 1.8 Nm {18.0 kgf
cm}
(3) The hub rotation starting torque should be within the limit
value range, and there should be no engagement or
feeling of roughness.
2. HUB AXIAL PLAY CHECK
(1) Measure the hub play in the axial direction.
Limit: 0.05 mm
NOTE
Measure the hub play while clamping the hub in a vice
with wooden blocks against the bearing section.
(2) If the limit value of hub axial play cannot be obtained
with the nut tightened to the specified torque (177 to
275 Nm {18.0 to 28.0 kgf
m}), replace the front hub
assembly.MB991000
(MB990998)
MB990326
177 – 275 Nm
{18.0 – 28.0 kgf
m}
MB991017
MB991017
Wooden blocks
Wooden blocks

27-1
REAR AXLE
CONTENTS
SERVICE SPECIFICATIONS 2. . . . . . . . . . . . . .
LUBRICANT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEALANT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 3. . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING <AYC> 5. . . . . . . . . . . . .
ON-VEHICLE SERVICE
<VEHICLES WITH AYC> 27. . . . . . . . . . . . . . .
1. Rear Axle Total Backlash Check 27. . . . . . .
2. Gear Oil Level Check 27. . . . . . . . . . . . . . . .
3. Gear Oil Change 28. . . . . . . . . . . . . . . . . . . . .
4. Fluid Level Check 29. . . . . . . . . . . . . . . . . . . .
5. Bleeding 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Differential Carrier Oil Seal
Replacement 30. . . . . . . . . . . . . . . . . . . . . . . . .
7. Speed Sensor Output Voltage
Measurement <Vehicles without ABS> 31.
8. Action When Battery Runs Out 32. . . . . . . .
REAR HUB ASSEMBLY 33. . . . . . . . . . . . . . . .
KNUCKLE 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRIVE SHAFT 36. . . . . . . . . . . . . . . . . . . . . . . . .
DIFFERENTIAL CARRIER
<EVOLUTION-IV, EVOLUTION-V GSR> 39.
DIFFERENTIAL CARRIER
<EVOLUTION-V RS> 41. . . . . . . . . . . . . . . . . . .
TORQUE TRANSFER DIFFERENTIAL
<VEHICLES WITH AYC> 43. . . . . . . . . . . . . . .
LSD CASE ASSEMBLY
<VEHICLES WITHOUT AYC> 46. . . . . . . . . . .
HYDRAULIC UNIT
<VEHICLES WITH AYC> 50. . . . . . . . . . . . . . .
SENSOR RELAY
<VEHICLES WITH AYC> 52. . . . . . . . . . . . . . .
AYC-ECU 53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

REAR AXLE – Service Specifications / Lubricant / Sealant27-2
SERVICE SPECIFICATIONS
<Vehicles with AYC>
ItemsStandard valueLimit
Rear axle total backlash mm–5
Pressure generated by hydraulic unit MPa {kgf/cm2}0 – 1.6 {10.0 – 16.0}–
Wheel bearing axial play mm–0.05
Wheel bearing rotation starting torque Nm {kgf
cm}–1.0 {10.5} or less
<Vehicles without AYC>
ItemsStandard valueLimit
Right-to-left difference in combined thickness of friction plate and fric-
tion disc mm0 – 0.05–
Clearance between spring plate and differential case mm0.06 – 0.25–
LSD differential torque
Nm {kgf
m}
When new clutch plate is installed5 – 19 {0.5 – 1.9}–
Nm {kgf
m}
When existing clutch plate is installed2 – 19 {0.2 – 1.9}–
Distortion of friction plate and friction disc mm–0.08
Difference in thickness between friction plate, friction disc, and spring
plate mm–0.1
LUBRICANT
<Vehicles with AYC>
ItemsSpecified lubricantCapacity
Gear oilTorque
transfer
differential
DifferentialMITSUBISHI GENUINE DIA QUEEN SUPER
HYPOID GEAR OIL (GL-5)0.41 ± 0.02 dm3
{0.41 ± 0.02 }
differentialTorque transfer
mechanismMITSUBISHI GENUINE DIA QUEEN AYC FLUID0.700
0.05dm3
{0.700
0.05}
Hydraulic piping fluidMITSUBISHI GENUINE DIA QUEEN ATF-SPII1 dm3 {1 }
Torque transfer mechanism oil seal lipsVaselineAs required
SEALANT
<Vehicles with AYC>
ItemsSpecified sealant
Torque transfer differential vent plugSemi-drying sealant: THREEBOND 1281B (460 g)
Torque transfer mechanism cover

REAR AXLE – Special Tools27-3
SPECIAL TOOLS
ToolNumberNameUse
MB991529Diagnosis code
check harnessInspection of AYC (diagnosis display by AYC
warning lamp)
MD998330
(MD998331)Oil pressure
gauge
(2,942 kPa
{30 kgf/cm
2})
Hydraulic pressure measurement <vehicles
with AYC>
MB991705Hose adapter
MB990925Bearing & oil seal
installer setPressfitting of oil seal <differential>
MB991115Oil seal installerPressfitting of oil seal <differential> (used in
combination with MB990938)
MD998812Installer capPressfitting of oil seal <torque transfer mecha-
nism of vehicles with AYC>
MD998813Installer 100
MD998829Installer adapter
(60)
MB990767End yoke holderFixing of hub

REAR AXLE – Special Tools27-4
Tool UseName Number
AB
MB990241
A: MB990242
B: MB990244Rear axle shaft
puller
A: Puller shaft
B: Puller bar
Removal of drive shaft

Removal of rear hub assembly
MB991354Puller body
A: MB991017
B: MB990998
C: MB991000A, B: Front hub
remover &
installer
C: Spacer
Temporary fixing of unit bearing

Measurement of wheel bearing rotation
starting torque

Measurement of wheel bearing axial play
Use MB991000 (component
of MB990998) for the spacer.
MB990326Preload socket
Measurement of wheel bearing rotation
starting torque

Measurement of drive pinion preload
MB991406,
MB990635, or
MB991113Steering linkage
puller
Disconnection of ball joint

Removal of hub bolt
MB991460PlugPrevention of differential oil from being dis-
charged and entry of foreign matter <differen-
tial>
MB990988Side gear holding
tool setMeasurement of clutch plate preload <vehicles
without AYC>
MB990850End yoke holderRemoval and installation of companion flange