Mitsubishi Lancer Evolution 7. Manual — part 24
DRIVE-CONTROL COMPONENTS -
Brakes
3-15
CONSTRUCTION DIAGRAM
<Vehicles with ABS>
Brake booster*
Rear disc brake
Parking brake
Front disc brake
Master cylinder*
Hydraulic unit*
<Vehicles without ABS>
Brake booster*
Rear disc brake
Parking brake
Front disc brake
Master cylinder and
proportioning valves*
NOTE
For R.H. drive vehicles, only the position indicated by the * is symmetrical.
DRIVE-CONTROL COMPONENTS -
Service Brakes
3-16
SERVICE BRAKES
SPECIFICATIONS
Items
Lancer EVOLUTION-VII
Lancer EVOLUTION-VI Tommi
Makinen Edition
Master
cylinder
Type
Tandem type
Tandem type
cylinder
I.D. mm
26.9
26.9
Brake
booster
Type
Vacuum type, tandem
Vacuum type, tandem
booster
Effective dia. of power
cylinder mm
205 + 230
180 + 205
Boosting ratio
4.5 (Pedal depressing force: 230
N)
4.5 (Pedal depressing force: 230
N)
Rear wheel hydraulic control method
Electronic brake-force
distribution (EBD) <Vehicles with
ABS (RS, RS-II)> or
Proportioning valves <Vehicles
without ABS (RS)>
Proportioning valves
Front brakes
<RS (standard)>
Type
Floating caliper, 2 piston,
ventilated disc
Floating caliper, 2 piston,
ventilated disc
Disc effective dia. ¢
thickness mm
227 ¢ 24
227 ¢ 24
Wheel cylinder I.D. mm
42.9 (¢2)
42.9 (¢2)
Pad thickness mm
10.0
10.0
Clearance adjustment
Automatic
Automatic
Front brakes
<RS (option),
RS II
Type
4 opposed piston, ventilated disc
<Brembo braking system>
4 opposed piston, ventilated disc
<Brembo braking system>
RS-II>
Disc effective dia. ¢
thickness mm
263 ¢ 32
263 ¢ 32
Wheel cylinder I.D. mm
40.0 (¢2), 46.0 (¢2)
40.0 (¢2), 46.0 (¢2)
Pad thickness mm
10.0
10.0
Clearance adjustment
Automatic
Automatic
Rear brakes
<RS (standard)>
Type
Floating caliper, 1 piston,
ventilated disc
Floating caliper, 1 piston,
ventilated disc
Disc effective dia. ¢
thickness mm
237 ¢ 20
237 ¢ 20
Wheel cylinder I.D. mm
34.9
34.9
Pad thickness mm
10.0
10.0
Clearance adjustment
Automatic
Automatic
Rear brakes
<RS (option),
RS II
Type
2 opposed piston, ventilated disc
<Brembo braking system>
2 opposed piston, ventilated disc
<Brembo braking system>
RS-II>
Disc effective dia. ¢
thickness mm
252 ¢ 22
252 ¢ 22
Wheel cylinder I.D. mm
40.0 (¢2)
40.0 (¢2)
Pad thickness mm
9.0
9.0
Clearance adjustment
Automatic
Automatic
Brake fluid
DOT3 or DOT4
DOT3 or DOT4
DRIVE-CONTROL COMPONENTS -
Service Brakes
3-17
MASTER CYLINDER
The master cylinder is a tandem-type, with a
structure that emphasises safety.
Reserve tank
Primary piston assembly
Piston retainer
Master cylinder body
Secondary piston assembly
BRAKE BOOSTER
A 8+9-inch tandem-type brake booster has been
adopted.
Barometricpressure
chambers
Reaction disc
Rear diaphragm
Operating rod
Booster return spring
Front diaphragm
Push rod
DRIVE-CONTROL COMPONENTS -
Service Brakes
3-18
DISC BRAKES
Brakes with the following specifications have been
adopted.
D
V5-W43 2-piston ventilate discs for front brakes
<RS (standard)>
D
V5-S35 1-piston ventilate discs for rear brakes
<RS (standard)>
D
Brembo V7-Z4046 4-opposed-piston ventilate
discs for front brakes <RS (option), RS-II>
D
Brembo V6-X40 2-opposed-piston ventilate
discs for rear brakes <RS (option), RS-II>
D
An outer disc method in which the wheels and
discs are tightened together has been adopted
to improve the ease of brake disc removal and
installation.
D
The
brake
pads
are
equipped
with
mechanical-type audible wear indicators to
notify the driver when the usage limit (2 mm)
has been reached.
D
Split fins adopted as the disc fins to improve
cooling performance
NOTE
Brembo is an italian component maker whose name
and products are well known in the motorsports
world.
DISC BRAKES <Brembo braking system>
A
B
View A
View B
Front of vehicle
Front of
vehicle
Pads
Pads
<Front>
<Rear>
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