Mitsubishi Galant. Manual — part 465

TRANSAXLE

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-29

ASSEMBLY

CAUTION

•

Do not reuse the gasket, O-ring, oil seal. Always
replace with a new one when assembling.

•

Do not use grease other than petroleum jelly (Vaseline).

•

Apply ATF to friction components, rotating parts, and
sliding parts before installation. Immerse a new clutch
disc or brake disc in ATF for at least two hours before
assembling them.

•

When replacing a bushing, replace the assembly which
it belongs to.

•

Do not use cloth gloves or shop towels during
assembly. Use nylon cloth or other lint-free material.

1. Install special tool MD998412 in the installation screw hole

of the transfer drive gear bearing located in the transaxle
case. Using this as a guide, install the transfer drive gear
bearing and gear in the transaxle case.

2. Tighten the seven mounting bolts (F4A42) and eight

mounting bolts (F4A51) of the transfer drive gear bearing to
the specified torque.

Tightening torque: 34 N

⋅⋅⋅⋅

m (25 ft-lb)

AKX01088AB

MD998412

AKX01035

<F4A42>

AB

TRANSAXLE

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AUTOMATIC TRANSAXLE OVERHAUL

23B-30

3. Install the low-reverse brake piston, return spring, and

spring retainer into the transaxle case.

4. Fit a new O-ring into the groove of one-way clutch inner

race.

5. Check the placement of the identification notches in the one-

way clutch inner race. Install the one-way clutch inner race
to the transfer drive gear bearing so that the notches fall
along the A

−

A line.

6. Put the snap ring on the inner race.

7. Set special tools MD998703 <F4A42> or MD998338

<F4A51> and MD998924 as shown, and then compress the
one-way clutch inner race and install the snap ring.

NOTE: This illustration shows F4A51.

8. Install the wave spring onto the low-reverse brake piston.

AKX01116

IDENTIFICATION
NOTCHES

TRANSAXLE
CASE

A

A

AB

AKX01107AB

MD998924

MD998903
<F4A42> OR
MD998338
<F4A51>

AKX01023

TRANSAXLE

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AUTOMATIC TRANSAXLE OVERHAUL

23B-31

CAUTION

If necessary, take the measurements in steps 9 to 18 after
replacing the pressure plate, brake plate and brake disc.
9. Install the six brake discs, five brake plates and snap ring as

shown in the figure.

NOTE: Do not install the pressure plate at this time.

10.Install special tool MB991631 <F4A42> or MB991632

<F4A51> on the brake disc.

11.Install the reaction plate and the used snap ring.

12.Move special tool MB991631 <F4A42> or MB991632

<F4A51> to measure the end play of reaction plate. Then
replace the snap ring installed in step 11 to adjust the end
play to standard value.

Standard value: 0

−−−−

0.16 mm (0

−−−−

0.0063 inch)

13.Install the brake discs and brake plates as shown in the

figure.

Number of brake discs and plates

14.Place special tool MB991631 <F4A42> or MB991632

<F4A51> on top of the brake disc in place of the pressure
plate.

15.Install the return spring, second brake piston and snap ring.

A/T MODEL

BRAKE DISC

BRAKE PLATE

F4A42

3

2

F4A51

4

3

AKX01119

<F4A42>

SNAP RING

REACTION PLATE

MB991631

AB

AKX01120

<F4A51>

REACTION PLATE

SNAP RING

MB991632

AB

AKX1137

<F4A42>

SECOND BRAKE
PISTON

SNAP RING

MB991631

RETURN
SPRING

AB

AKX01121

<F4A51> SECOND BRAKE

PISTON

MB991632

SNAP RING

RETURN
SPRING

AB

TRANSAXLE

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AUTOMATIC TRANSAXLE OVERHAUL

23B-32

16.Move special tool MB991631 <F4A42> or MB991632

<F4A51> and measure its movement.

Standard value of end play (Reference):

0.79

−−−−

1.25 mm (0.0311

−−−−

0.0492 inch) <F4A42>

1.09

−−−−

1.55 mm (0.0429

−−−−

0.0610 inch) <F4A51>

17.Select a pressure plate whose thickness corresponds to the

measured amount of movement from the following table.

PRESSURE PLATE FOR F4A42

PRESSURE PLATE FOR F4A51

18.Turn the transaxle over so that the installation surface of the

torque converter housing is facing up.
Install special tool MD998913 in a dial gauge, and then
move special tool MB991631 <F4A42> or MB991632
<F4A51> and measure its movement.

Standard value of end play (Reference):

1.65

−−−−

2.11 mm (0.050

−−−−

0.0831 inch)

MOVEMENT AMOUNT
mm (in)

THICKNESS
mm (in)

ID
SYMBOL

PRESSURE
PLATE PART
NO.

0.6

−

0.8 (0.024

−

0.031)

1.6 (0.063)

L

MD759567

0.8

−

1.0 (0.031

−

0.039)

1.8 (0.071)

1

MD759414

1.0

−

1.2 (0.039

−

0.047)

2.0 (0.079)

0

MD759415

1.2

−

1.4 (0.047

−

0.055)

2.2 (0.087)

2

MD759416

1.4

−

1.6 (0.055

−

0.063)

2.4 (0.094)

4

MD759417

1.6

−

1.8 (0.063

−

0.071)

2.6 (0.102)

6

MD759418

MOVEMENT AMOUNT
mm (in)

THICKNESS
mm (in)

ID
SYMBOL

PRESSURE
PLATE PART
NO.

1.1

−

1.3 (0.043

−

0.051) 1.8 (0.071)

E

MD759425

1.3

−

1.5 (0.051

−

0.059) 2.0 (0.079)

D

MD759426

1.5

−

1.7 (0.059

−

0.067) 2.2 (0.087)

C

MD759427

1.7

−

1.9 (0.067

−

0.075) 2.4 (0.094)

B

MD759428

1.9

−

2.1 (0.075

−

0.083) 2.6 (0.102)

A

MD759429

2.1

−

2.3 (0.083

−

0.091) 2.8 (0.110)

0

MD759430

AKX01068

MB991631 <F4A42> OR
MB991632 <F4A51>

AB

AKX01138

<F4A42>

MOVEMENT
AMOUNT

AB

AKX01122

<F4A51>

MOVEMENT
AMOUNT

AB

AKX01069AB

MD998913

MB991631
<F4A42> OR
MB991632
<F4A51>