1998 MITSUBISHI LANCER EVOLUTION IV brake

BASIC BRAKE SYSTEM – Brake Pedal35A-4
BRAKE PEDAL
REMOVAL AND INSTALLATION
Pre-removal Operation

Instrument Under Cover Removal

Steering Column Assembly Removal
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Accelerator Pedal RemovalPost-installation Operation

Accelerator Pedal Installation

Steering Column Assembly Installation
(Refer to GROUP 37A – Steering Wheel and Shaft.)

Instrument Under Cover Installation

Brake Pedal Adjustment (Refer to P.35A-2.)
29 Nm
12 Nm
14 Nm
1 2
3
4 5
67 813 Nm
11
910
8 9
Removal steps
1. Stop lamp switch connector
2. Stop lamp switch
3. Snap pin
4. Clevis pin
5. Brake pedal shaft bolt
6. Brake pedal7. Brake pedal pad
8. Brake pedal return spring
9. Bushing
10. Pipe
11. Pedal support member

BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-5
MASTER CYLINDER AND BRAKE BOOSTER

REMOVAL AND INSTALLATION
Pre-removal Operation

Brake Fluid Draining

Air Intake Hose RemovalPost-installation Operation

Brake Fluid Supplying

Brake Line Bleeding

Brake Pedal Adjustment (Refer to P.35A-2.)

Air Intake Hose Installation
15–18 Nm 15 Nm
Sealant: 3M ATD Part No.
8661 or equivalent
6
7 3
14
2
8
5
4
14 Nm
5 9
1
10 Nm
Removal steps
1. Brake pipe connection
2. Brake fluid level sensor connector
3. Master cylinder assembly
B
Clearance adjustment between brake
booster push rod and primary piston
A4. Vacuum hose
(With built-in check valve)5. Fitting
6. Snap pin
7. Clevis pin assembly
8. Brake booster
9. Sealer

BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-6
INSTALLATION SERVICE POINTS
AVACUUM HOSE CONNECTION
Insert securely and completely until the vacuum hose at the
engine side contacts the edge of the hexagonal part of the
fitting, and then secure by using the hose clip.
BCLEARANCE ADJUSTMENT BETWEEN BRAKE
BOOSTER PUSH ROD AND PRIMARY PISTON
Calculate clearance A from the B, C and D measurements.
A = B – C – D
Standard value: 0.65–0.85 mm
If the clearance is not within the standard value range, adjust
by changing the push rod length by turning the screw of
the push rod.
Measuring
distance BMeasuring
distance D
Block
gaugeB
AC
D

BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-7
MASTER CYLINDER
DISASSEMBLY AND REASSEMBLY
Master cylinder kit
11
14
1312
141315 1
4 2
3
6
8
9 5
7
10
12
15
13
14Brake fluid: DOT3 or DOT4
11
Disassembly steps
1. Reservoir cap assembly
2. Reservoir cap
3. Diaphragm
4. Filter
5. Brake fluid level sensor
6. Float
7. Reservoir stopper bolt8. Reservoir tank
9. Reservoir seal
A10. Piston stopper bolt
11. Gasket
B12. Piston stopper ring
13. Primary piston assembly
14. Secondary piston assembly
15. Master cylinder body

BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-8
DISASSEMBLY SERVICE POINTS
APISTON STOPPER BOLT DISASSEMBLY
Remove the piston stopper bolt, while depressing the piston.
BPISTON STOPPER RING DISASSEMBLY
Remove the piston stopper ring, while depressing the piston.
INSPECTION

Check the inner surface of master cylinder body for rust
or pitting.

Check the primary and secondary pistons for rust, scoring,
wear, damage or wear.

Check the diaphragm for cracks and wear.

BASIC BRAKE SYSTEM – Disc Brake35A-9
DISC BRAKE

DISASSEMBLY AND REASSEMBLY
Front Brake
Seal & boot kit Shim set
Clip set Pad set
Brake caliper kit
1 23 4 5
6
7
8 9
10
1
23
43 41
2 56
55
7 9
9 7 9 7
8 6 6
10
21
Disassembly steps
1. Pin
2. Cross spring
3. Pad & wear indicator assembly
4. Pad assembly
5. Shim6. Air bleeder screw
7. Piston boot
8. Piston
9. Piston seal
10. Caliper body

BASIC BRAKE SYSTEM – Disc Brake35A-10
Rear Brake
Seal & boot kit Shim set
Clip set Pad setBrake caliper kit
1
23 4 5
6
7 8
910
2
6
16
7
8 910 2
1
7
9 7 9
3
4
3 4
2
1
65
5
5
Disassembly steps
1. Pin
2. Cross spring
3. Pad & wear indicator assembly
4. Pad assembly
5. Shim6. Air bleeder screw
7. Piston boot
8. Piston
9. Piston seal
10. Caliper body

ABS – Troubleshooting35B-11
3. INSPECTION CHART FOR TROUBLE SYMPTOMS
Get an understanding of the trouble symptoms and check according to the inspection procedure chart.
Trouble symptomsInspection pro-
cedure No.Reference page
When the ignition key is turned to “ON” (engine stopped), the ABS warning lamp
does not illuminate.135B-12
Even after the engine is started, the ABS warning lamp remains illuminated.235B-13
After the ignition key is turned to “ON”, the ABS warning lamp blinks twice, and
when turned to “START”, it illuminates. When returned to “ON”, the lamp
flashes once, and then switches off.335B-13
When the ignition key is turned to “START”, the ABS warning lamp does not
illuminate.435B-14
Brake operation is abnormal535B-14
Caution
(1) If steering movements are made when driving at high speed, or when driving on road surfaces
with low frictional resistance, or when passing over bumps, the ABS may operate even though
sudden braking is not being applied. Because of this, when getting information from the customer,
check if the problem occurred while driving under such conditions as these.
(2) During ABS operation, the brake pedal may vibrate or may not be able to be depressed. Such
phenomena are due to intermittent changes in hydraulic pressure inside the brake line to prevent
the wheels from locking and is not an abnormality.