brake MITSUBISHI LANCER EVOLUTION IV 1998 User Guide

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

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.

REAR AXLE – Troubleshooting 27-14
Code No. 52: Longitudinal acceleration sensor systemProbable cause
This code is output when the longitudinal acceleration exceeds a predetermined value
while the vehicle is running with both ABS and brakes being inactive.
Defective longitudinal acceleration sensor

Defective harness or connector

Defective AYC-ECU
NG
Check and repair the harness between
longitudinal acceleration sensor and
AYC-ECU.
OK
Check the trouble symptom.
NG
Replace AYC-ECU.
OK
Check the trouble symptom.
OK
Check the following connector:
B-95NG
Repair
OK
Measure at B-95 AYC-ECU connector.

Connector connected

Ignition switch: ON

Voltage across 3 and body ground
OK:2.4 V to 2.6 V (where vehicle
in horizontal position)NGCheck the following connectors:
B-95, B-52, D-20
Check the acceleration sensor.
(Refer to P.27-52.)NG
Replace
NG
Repair
Code No. 61: Stop lamp switch systemProbable cause
This code is output under either of the following conditions:

Stop lamp switch remains ON for 15 min. or more.

There is an open-circuit in the harness between AYC-ECU and stop lamp switch.
Defective stop lamp switch

Defective harness or connector

Defective AYC-ECU
NG
Replace AYC-ECU.
OK
Check the trouble symptom.
OK
Check the following connector:
B-95NG
Repair
OK
Measure at the B-95 AYC-ECU con-
nector.

Disconnect the connector and
measure at the harness side.

Voltage across 11 and body ground

Brake pedal not depressed.
OK:1 V or lessNGCheck and repair the harness between
AYC-ECU and stop lamp switch.
Check the stop lamp switch.NG
Replace

REAR AXLE – On-vehicle Service 27-27
ON-VEHICLE SERVICE

1. REAR AXLE TOTAL BACKLASH CHECK
If the drive system roars or the vehicle vibrates, use the
following procedure to measure total backlash in the rear
axle. Based on the measurement taken, determine whether
the differential carrier assembly needs to be removed or not.
(1) Place the shift lever in the neutral position and operate
the parking brake.
(2) Turn the propeller shaft fully clockwise and make an
alignment mark on the companion flange dust cover and
gear carrier.
(3) Turn the propeller shaft fully counterclockwise and
measure the deviation between the alignment marks.
Limit: 5 mm
(4) If the backlash exceeds the limit, replace the differential
carrier assembly.
2. GEAR OIL LEVEL CHECK
2-1 DIFFERENTIAL
(1) Remove the filler plug.
(2) Check that the gear oil level is within the specified range
from the bottom end of the filler plug hole.
Standard value (A): 6 mm
(3) If the gear oil level exceeds the standard value, add the
specified gear oil up to the bottom end of the filler plug
hole.
Specified gear oil:
MITSUBISHI GENUINE DIA QUEEN SUPER
HYPOID GEAR OIL (GL-5)
NOTE
10
C or more: #90, less than 10
C: #80
(4) Fit the filler plug and tighten it to the specified torque.
Alignment marks
Filler plug
49 Nm
{5.0 kgf
m}
Gear oil
Upper
limit
Lower
limit

REAR AXLE – On-vehicle Service 27-31
7. SPEED SENSOR OUTPUT VOLTAGE
MEASUREMENT ABS>
(1) Lift up the vehicle and release the parking brake.
(2) Disconnect the AYC-ECU harness connector and take
measurements on the harness side connector.
Caution
Insert the probe from the harness side with the double
lock of the connector unlocked. Inserting it to the
terminal side could result in poor contact.
(3) Turn the wheel to be tested at about 1/2 to one
revolution/sec. and check for the output voltage using
a circuit tester (AC mV range) or oscilloscope.
Terminal nos.
Front LHFront RHRear LHRear RH
7698
20192221
Output voltage:
When circuit tester is used: 70 mV or more
When oscilloscope is used: 200 mVp-p or more
(4) If the output voltage is lower than the above value, it
is probably attributable to the following faults. Check or
replace the speed sensor as necessary.
Excessive clearance between the pole piece and rotor
of the speed sensor
Defective speed sensor
Waveform Check Using Oscilloscope
Check the harness and connector of the speed sensor for
connection. Then, use an oscilloscope to check for output
voltage waveform of each speed sensor as follows.
Start the engine and monitor the sensor by turning the wheel;
for a driving wheel, let it turn by shifting into the 1st gear
and for a driven wheel turn it manually at a constant speed.
NOTE
(1) Waveform may be observed by actually running the
vehicle.
(2) The output voltage is low when the wheel speed remains
low and builds up as the wheel speed increases.
AYC-ECU connector harness side
When turned manually
At idle (5 to 6 km/h)
1st gear

REAR AXLE – Rear Hub Assembly27-33
REAR HUB ASSEMBLY
REMOVAL AND INSTALLATION
12
3
4
56 7
8
Unit: Nm {kgf
m}
118 {12.0}
74 – 88
{7.5 – 9.0} 49 – 59
{5.0 – 6.0}196 – 255
{20.0 – 26.0}
Removal steps
A1. Caliper assembly
2. Brake disc
3. Shoe & lining assembly
(Refer to GROUP 36 – Parking
Brake.)
4. Clip
5. Parking brake cable connectionBA6. Drive shaft nut
C7. Rear hub assembly
8. Backing plate
Caution
Do not disassemble the rear hub assembly.
REMOVAL SERVICE POINTS
ACALIPER ASSEMBLY REMOVAL
Secure the removed caliper assembly with a wire so that
it will not fall.
BDRIVE SHAFT NUT REMOVAL
CREAR HUB ASSEMBLY REMOVAL
(1) Using the special tool, remove the drive shaft from the
rear hub assembly.
(2) Remove the mounting bolts and remove the rear hub
assembly from the knuckle.
MB990767
MB990244 (3) MB990767
MB990242MB991354

REAR AXLE – Drive Shaft27-36
DRIVE SHAFT
REMOVAL AND INSTALLATION
Pre-removal Operation
(1) Gear Oil Draining (Refer to P.27-28.)
(2) Center Exhaust Pipe Removal
(Refer to GROUP 15.)Post-installation Operation
(1) Checking Each Ball Joint Dust Cover for Cracks
and Damages by Pressing Dust Cover with Finger
(2) Center Exhaust Pipe Installation
(Refer to GROUP 15.)
(3) Gear Oil Filling (Refer to P.27-28.)
(4) Parking Brake Lever Stroke Check and Adjustment
(Refer to GROUP 36 – On-vehicle Service.)
(5) Wheel Alignment Check and Adjustment
(Refer to GROUP 34 – On-vehicle Service.)
1
2 3
4
56 7
89 10 11
Unit: Nm {kgf
m}
25 {2.6}
74 – 87 {7.5 – 8.9}
74 – 87
{7.5 – 8.9}*88 {9.0}* 49 – 59 {5.0 – 6.0}
196 – 255 {20.0 – 26.0}
Removal steps
1. Caliper assembly
(Refer to P.27-33.)
2. Brake disc
3. Shoe & lining assembly (Refer to
GROUP 36 – Parking Brake.)
4. Clip
5. Parking brake cable connection
AB6. Drive shaft nut
7. Rear speed sensor coupling

8. Trailing arm coupling
9. Lower arm coupling
10. Toe control arm coupling
BA11. Drive shaftCaution
(1) With the part marked with *, first temporarily
tighten it, then ground the vehicle and tighten
it to specification in unloaded condition.
(2) When removing the drive shaft from, and
reinstalling it to, a vehicle with AYC, use care
not to damage the rotor mounted on the BJ outer
race.

FRONT SUSPENSION – Strut Assembly33A-4
STRUT ASSEMBLY
REMOVAL AND INSTALLATION
Post-installation Operation
Front Wheel Alignment Adjustment
(Refer to P.33A-3.)
12 3
4
5
6 7
Unit: Nm {kgfm}
44 {4.5}
108 – 127
{11.0 – 13.0}
Removal steps
1. Brake hose clamp
2. Front speed sensor bracket

3. Flange nut4. Strut tower bar
5. Plain washer
A6. Bolts
7. Strut assembly
REMOVAL SERVICE POINT
ABOLTS REMOVAL
(1) Suspend the lower arm from the vehicle with wire.
(2) Remove the strut and knuckle connection.

REAR SUSPENSION – Rear Suspension Assembly34-4
REAR SUSPENSION ASSEMBLY
REMOVAL AND INSTALLATION
Pre-removal Operation
(1) Center Exhaust Pipe Removal
(Refer to GROUP 15.)
(2) Trunk Room Side Trim Removal
(3) AYC Fluid Draining
(Refer to GROUP 27 – On-vehicle Service.)Post-installation Operation
(1) AYC Fluid Refilling and Bleeding
(Refer to GROUP 27 – On-vehicle Service.)
(2) Center Exhaust Pipe Installation
(Refer to GROUP 15.)
(3) AYC Operation Check
(4) Parking Brake Cable Stroke Check
(Refer to GROUP 36 – On-vehicle Service.)
(5) Wheel Alignment Check and Adjustment
(Refer to P.34-3.)
1
34
5
6
7 9 10
1112
1314
15 1617
Unit: Nm {kgf
m}
44 {4.5}
108 – 127 {11.0 – 13.0}
54 {5.5}
88 {9.0}
93 {9.5}*88 {9.0}
158 2
15
29 – 34
{3.0 – 3.5}
25 {2.6}34 {3.5}25 {2.5}
69
{7.0} Toe control bar
EVOLUTION-V RS
137 – 156 {14.0 – 16.0}*59 – 68 {6.0 – 7.0}*
Removal steps
1. Fuel filler cap
2. Bolt
3. Filler neck protector
4. Cap
5. Shock absorber mounting nut
A6. Brake caliper assembly
7. Rear speed sensor AYC>
8. Brake disc
9. Parking brake cable end (Refer to
GROUP 36.)
10. AYC fluid line connection with AYC>BB11. Propeller shaft connection
12. Upper arm mounting bolt
13. Trailing arm mounting bolt
14. Toe control arm mounting bolt
CA15. Crossmember mounting bolt
16. Differential support assembly
mounting bolt
17. Rear suspension assembly
Caution
The parts marked with * should be first temporarily
tightened, then torqued to specification with the
vehicle on the ground in unloaded condition.

REAR SUSPENSION – Rear Suspension Assembly34-5
REMOVAL SERVICE POINTS
ABRAKE CALIPER ASSEMBLY REMOVAL
Remove the brake caliper assembly and secure it with a
wire.
BPROPELLER SHAFT DISCONNECTION
(1) Make an alignment mark on the differential carrier
companion flange and propeller shaft flange yoke.
(2) Remove the mounting bolts and nuts of the differential
carrier and propeller shaft.
CCROSSMEMBER MOUNTING BOLT REMOVAL
Support the differential case with a garage jack or transmission
jack and then remove the crossmember mounting bolt.
INSTALLATION SERVICE POINTS
ACROSSMEMBER MOUNTING BOLT
INSTALLATION
Tighten the mounting bolts in the numerical order shown.
NOTE
To ensure both good installation accuracy and ease of
installation, the crossmember mounting holes have different
diameters between front and rear. This is the reason for
specifying the tightening sequence of the mounting bolts.
BPROPELLER SHAFT CONNECTION
Align the alignment mark on the differential carrier with that
of the propeller shaft at installation.
Caution
Oil or grease on the threads of the mounting bolt or nut
can allow the bolt or nut to come loose. Be sure to
degrease the threads before installation.
Bolt size (thread dia. × length mm)
1 to 3: Flange bolt (with washer) 12 × 70
4: Flange bolt (with washer) 12 × 152
5: Bolt (with spring washer + washer) 12 × 105 Front of vehicle
13
3
44
2
55

REAR SUSPENSION – Trailing Arm Assembly34-8
TRAILING ARM ASSEMBLY
REMOVAL AND INSTALLATION
Post-installation Operation
(1) Push the Dust Cover of the Trailing Arm Ball Joint
with a Finger to Check for Possible Cracks or
Damage.
(2) Wheel Alignment Check and Adjustment
(Refer to P.34-3.)
1
2 3
45
Unit: Nm {kgf
m}
74 – 87 {7.5 – 8.9}
137 – 156 {14.0 – 16.0}*
4
Removal steps
1. Parking brake cable bolt
A2. Trailing arm assembly to knuckle
coupling
3. Trailing arm assembly mounting
bolt
4. Stopper
5. Trailing arm assemblyCaution
The part marked with * should be first temporarily
tightened, then torqued to specification with the
vehicle on the ground in unloaded condition.
REMOVAL SERVICE POINT
ATRAILING ARM ASSEMBLY DISCONNECTION
FROM KNUCKLE
Caution
(1) Only loosen the nut, and not remove it from the ball
joint, and use the special tool.
(2) Hang the special tool with a string to prevent the
parts including the tool from falling apart.
MB990635,
MB991113 or
MB991406
NutString
Ball joint