Mitsubishi Evolution X. Manual - part 828

REAR DISC BRAKE ASSEMBLY

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BASIC BRAKE SYSTEM

35A-39

REMOVAL SERVICE POINT

.

<<A>> FRONT BRAKE DISK REMOVAL

AC707776AB

Bolts (M8 x 1.25 mm)

If the rear brake disk removal is difficult, install bolts (M8 x 1.25 
mm) shown in the figure, and tighten them evenly and gradually 
to remove the rear brake disk.

INSPECTION

M1351007100399

.

BRAKE DISC CHECK

• Disc wear (Refer to 

P.35A-21

).

• Disc run-out (Refer to 

P.35A-21

).

REAR DISC BRAKE ASSEMBLY

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BASIC BRAKE SYSTEM

35A-40

DISASSEMBLY AND ASSEMBLY

M1351007200868

CAUTION

Take care not to contact the parts or tools to the caliper because the paint of caliper will be scratched. 
And if there is brake fluid on the caliper, wipe it off quickly.

AC710740AB

1

10

3

6

5

5

6

7

9

8

4

2

2

1

10

3

7

9

7

9

7

9

5

8

4

2

5

6

6

N

N

4

4

3

3

19 ± 1 N·m
14 ± 1 ft-lb

Clip set

Shim kit

Pad set

Repair kit grease

Seal and boot kit

Brake caliper kit

<Right side>

<Right side>

<Left side>

<Right side> <Left side>

<Left side>

Disassembly steps 

1.

Bleeder cap

2.

Bleeder

3.

Pin

4.

Cross spring

5.

Brake pad assembly

6.

Shim

<<

A

>>

7.

Piston boot

<<

A

>>

8.

Piston

<<

B

>>

9.

Piston seal

 

10. Caliper body

NOTE: Install the brake pad assembly (with wear 
indicator) to outside the vehicle.

Disassembly steps (Continued)

REAR DISC BRAKE ASSEMBLY

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BASIC BRAKE SYSTEM

35A-41

LUBRICATION POINTS

AC710741AB

Grease: Repair kit grease, Molykote 7439 
or equivalent

Grease: Repair kit grease, Molykote AS880N 
or equivalent 

DISASSEMBLY SERVICE POINTS

.

<<A>> PISTON BOOT/PISTON REMOVAL

CAUTION

Do not remove one piston separately before trying to 
remove the other piston, because it will become impossi-
ble to remove other pistons.

AC212149AC

Wood block

Remove the pistons by pumping in air slowly from the brake 
hose connection. Be sure to use a wood block and adjust the 
height of the two pistons while so that the pistons protrude 
evenly.

.

<<B>> PISTON SEAL REMOVAL

CAUTION

To prevent damage to inner cylinder, do not use a 
flat-tipped screwdriver or other tool.
1. Remove the piston seal with finger tip.
2. Clean the piston surface and cylinder inner face with alcohol 

or specified brake fluid.

Brake fluid: DOT3 or DOT4

INSPECTION

M1351007300412

• Check the cylinder for wear, damage or rust.

• Check the piston surface for wear, damage or rust.

• Check the caliper body for wear.

• Check the pad for damage or adhesion of grease, check the 

backing metal for damage.

.

REAR DISC BRAKE ASSEMBLY

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BASIC BRAKE SYSTEM

35A-42

PAD WEAR CHECK

WARNING

•

Always replace both brake pads on each wheel as 
a set (both front wheels or both rear wheels). Fail-
ure to do so will result in uneven braking, which 
may cause unreliable brake operation.

•

AC709430

If there is significant difference in the thickness of 
the pads on the left and right sides, check the 
moving parts.

Measure thickness at the thinnest, most worn area of the pad.
Replace the pad assembly if pad thickness is less than the limit 
value.

Standard value: 9.0 mm (0.35 inch)
Limit: 2.0 mm (0.08 inch)