Content .. 506 507 508 509 ..

Mitsubishi Galant. Manual - part 508

ON-VEHICLE SERVICE

TSB Revision

BASIC BRAKE SYSTEM

35A-23

4. Remove the following parts from caliper support.

(1) Pad and wear indicator assembly
(2) Pad assembly
(3) Inner shim
(4) Outer shim
(5) Pad clip

5. Remove the following parts from caliper support.

(1) Pad and wear indicator assembly
(2) Inner shim B
(3) Inner shim A
(4) Pad assembly
(5) Outer shim
(6) Clip

6. Measure the hub torque before and after pad installation.

Follow the procedure:
Front: Refer to

P.35A-35

Rear: Refer to

P.35A-42

CAUTION

Do not apply excessive grease. Excessive grease may
cause brake performance to become poor.
7. For front disc brake <2.4L ENGINE> and rear disc bake

<3.0L ENGINE>, apply brake grease SAE J310, NLGI
number 1 to the following positions before installing the pad.

<FRONT (2.4L ENGINE)>

•

Pad and wear indicator assembly and inner shim A contact
surface

•

Inner shim A and inner shim B contact surface

•

Pad assembly and outer shim A contact surface

•

Outer shim A and inner shim B contact surface

<REAR (3.0L ENGINE)>

•

Pad and wear indicator assembly and inner shim A contact
surface

•

Inner shim A and inner shim B contact surface

AC003738 AB

<FRONT (3.0L ENGINE)>

AC000884AC

<REAR (3.0L ENGINE)>

AC000885

<FRONT (2.4L ENGINE)>

PAD AND WEAR INDICATOR ASSEMBLY

INNER
SHIM A

INNER
SHIM B

OUTER
SHIM A

OUTER
SHIM B

PAD ASSEMBLY

AC000886

INNER SHIM A

INNER SHIM B

PAD AND WEAR
INDICATOR
ASSEMBLY

<REAR (3.0L ENGINE)>

ON-VEHICLE SERVICE

TSB Revision

BASIC BRAKE SYSTEM

35A-24

8. Install the pad and caliper assembly, and check the brake

drag force.
Front: Refer to

P.35A-35

Rear: Refer to

P.35A-42

DISC BRAKE ROTOR CHECK

M1351002900066

CAUTION

Disc brakes must be kept within the allowable
service values in order to maintain normal brake
operation.
Before turning the brake disc, the following
conditions should be checked.

FRONT DISC BRAKE RUN-OUT CHECK AND
CORRECTION

M1351009400084

1. Remove the caliper support; then raise the caliper assembly

upward and secure it with a wire.

2. Inspect the disc surface for grooves, cracks and rust. Clean

the disc thoroughly and remove all rust.

INSPECTION ITEMS

REMARKS

Scratches, rust, saturated lining materials and wear

•

If the vehicle is not driven for a long period of
time, sections of the discs that are not in contact
with the pads will become rusty, causing noise
and shuddering.

•

If grooves and scratches resulting from excessive
disc wear are not removed prior to installing a
new pad assembly, there will be inadequate con-
tact between the disc and the lining (pad) until the
pads conform to the disc.

Run-out

Excessive run-out of the discs will increase the pedal
depression resistance due to piston kick-back.

Change in thickness (parallelism)

If the thickness of the disc changes, this will cause
pedal pulsation, shuddering and surging.

Warping (flatness) or distortion

Overheating and improper handling while servicing
will cause warping or distortion.

AC000887AB

CALIPER
SUPPORT
MOUNTING
BOLT

ON-VEHICLE SERVICE

TSB Revision

BASIC BRAKE SYSTEM

35A-25

3. Place a dial gauge approximately 5 mm (0.2 inch) from the

outer circumference of the brake disc, and measure the run-
out of the disc.

Limit: 0.06 mm (0.002 inch)

4. If the run-out of the brake disc is limit value or more, turn

rotor with an on-car type brake lathe ("Accuturn-8750" or
equivalent). If it still exceeds the limit, inspect hub end play.

Limit: 0.05 mm (0.002 inch)

5. If the play exceeds the limit, check the hub. If the play does

not exceed the limit, replace the brake disc.

REAR DISC BRAKE RUN-OUT CHECK AND
CORRECTION

M1351009400103

1. Remove the caliper support; then raise the caliper assembly

upward and secure it with a wire.

2. Check the disc surface for grooves, cracks and rust. Clean

the disc thoroughly and remove all rust.

3. Place a dial gauge approximately 5 mm (0.2 inch) from the

outer circumference of the brake disc, and measure the run-
out of the disc.

Limit: 0.08 mm (0.003 inch)

4. If the run-out of the brake disc is the limit value or more,

change the phase of the disc and hub, and then measure
the run-out again.

(1) Before removing the brake disc, place a mating mark on

both the wheel stud and disc with chalk where the run-out
is greatest.

ACX00669AB

AC000888

CALIPER
SUPPORT
MOUNTING
BOLT

AC000889

AC000890 AB

CHALK MARKS

ON-VEHICLE SERVICE

TSB Revision

BASIC BRAKE SYSTEM

35A-26

(2) Place a dial gauge as shown in the illustration, and then

move the hub in the axial direction and measure the play.

Limit: 0.05 mm (0.002 inch)

(3) If the play does not exceed the limit install the brake disc

at a different phase, and then check the run-out of the
brake disc again.

5. If the run-out cannot be corrected by changing the phase of

the brake disc, replace the disc.

BRAKE DISC THICKNESS CHECK

M1351002400050

<Front>
1. Remove dirt and rust from the brake disc surface.

2. Using a micrometer, measure disc thickness at eight

positions, approximately 45 degrees apart and 10 mm (0.4
inch) in from the outer edge of the disc.

2.4L ENGINE

Standard value: 24.0 mm (0.9 inch)
Minimum limit: 22.4 mm (0.88 inch)

3.0L ENGINE

Standard value: 26.0 mm (1.02 inch)
Minimum limit: 24.4 mm (0.96 inch)

NOTE: Thickness variation (at least 8 positions) should not be
more than 0.015 mm (0.0006 inch).
3. If the disc thickness is less than the limits, replace it with a

new one. If thickness variation exceeds the specification,
turn rotor with an on-the-car type brake lathe ("Accuturn-
8750" or equivalent).
If the calculated final thickness after turning the rotor is less
than the standard value, replace the disc.

AC000891

AC000889

ACX00668AB

Content .. 506 507 508 509 ..