Mitsubishi Galant. Manual — part 471

REVERSE AND OVERDRIVE CLUTCH

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AUTOMATIC TRANSAXLE OVERHAUL

23B-53

>>C<< CLUTCH PLATE/CLUTCH DISC/CLUTCH REACTION
PLATE INSTALLATION

CAUTION

Immerse the clutch disc in ATF before assembling it.
Especially if the clutch disc is new, use it only after it has
been immersed in ATF for at least two hours.
1. Assemble the four clutch plates and four clutch discs one on

top of the other inside the underdrive clutch retainer. All four
clutch plates should be assembled so that the places with no
teeth (marked "A") are aligned with the holes in the retainer
(marked "B").

2. Install the clutch reaction plate in the direction shown.

In the same way as the clutch plates, assemble them so that
the areas with no teeth (marked "A") are aligned with the
holes in the retainer (marked "B").

>>D<< SNAP RING INSTALLATION
1. Install the snap ring into the groove of clutch retainer.

2. Set special tools MB991628 <F4A42>, MB991629 <F4A51>

and MD998924 as shown in the illustration, and then
compress the clutch element.

3. Check that the clearance between the snap ring and the

clutch reaction plate is within the standard value. If not within
the standard value, select a snap ring to adjust.

Standard value: 1.6

−−−−

1.8 mm (0.0630

−−−−

0.0709 inch)

REVER SE A ND O VERD R IVE CLUTC H

DISASSEMBLY AND ASSEMBLY

M1233024800020

NUMBER OF CLUTCH DISCS AND PLATES

AKX01044

B

A

AB

AKX01105

CLUTCH PLATES

ROUNDED EDGE

PISTON
SIDE

CLUTCH DISCS

AB

CLUTCH
REACTION
PLATE

AKX01045

MB991628
<F4A42>
OR
MB991629
<F4A51>

MD998924

AB

MODEL

PRESSURE
PLATE

CLUTCH DISC

CLUTCH PLATE

CLUTCH REACTION
PLATE

Over drive clutch F4A42

-

4

4

1

F4A51

1

4

3

1

Reverse clutch

-

2

2

1

REVERSE AND OVERDRIVE CLUTCH

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AUTOMATIC TRANSAXLE OVERHAUL

23B-54

Required Special Tools:
MB991628: Spring Compressor <F4A42>
MB991629: Spring Compressor <F4A51>
MB991789: Spring Compressor <F4A51>

MB991790: Spring Compressor <F4A42>
MD998924: Spring Compressor Retainer
MD999590: Spring Compressor

AKX01127

AKX01127

APPLY AUTOMATIC
TRANSMISSION FLUID
TO ALL MOVING PARTS
BEFORE INSTALLATION.

17

20

19

18

17

16

14

13

12

11

10

15

19

18

13

16

14

20

10

11

15

12

7

3

5

8

6

4

2

1

1 2

4

5

6

8

7

3

8 <F4A42> or 9 <F4A51>

8 <F4A42> or

9 <F4A51>

AB

DISASSEMBLY STEPS

>>G<<

1.

SNAP RING

>>F<<

2.

CLUTCH REACTION PLATE

>>F<<

3.

CLUTCH DISC

>>F<<

4.

CLUTCH PLATE

>>E<<

5.

SNAP RING

>>D<<

6.

CLUTCH REACTION PLATE

>>D<<

7.

CLUTCH DISC

>>D<<

8.

CLUTCH PLATE

9.

PRESSURE PLATE <F4A51>

<<A>>

>>C<<

10. SNAP RING

11. SPRING RETAINER

>>A<<

12. D-RING
13. RETURN SPRING
14. OVERDRIVE CLUTCH PISTON

>>A<<

15. D-RING

>>B<<

16. REVERSE CLUTCH PISTON

>>A<<

17. D-RING

>>A<<

18. D-RING

>>A<<

19. D-RING
20. REVERSE CLUTCH RETAINER

DISASSEMBLY STEPS (Continued)

REVERSE AND OVERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-55

DISASSEMBLY SERVICE POINT

<<A>> SNAP RING REMOVAL
1. Set special tools MD999590 and MD998924 as shown in the

illustration.

2. Compress the return spring and remove the snap ring.

ASSEMBLY SERVICE POINTS

>>A<< D-RING INSTALLATION
1. Install D-rings in the grooves on the reverse clutch retainer,

piston, overdrive clutch piston and spring retainer. Be careful
not to twist or damage the D-rings.

2. Apply ATF or petroleum jelly (Vaseline) to D-rings.

>>B<< REVERSE CLUTCH PISTON INSTALLATION
Align the outer circumference holes ("A" and "B") of the reverse
clutch piston and the reverse clutch retainer to assemble them.

>>C<< SNAP RING INSTALLATION
1. Set special tools MD999590 and MD998924 as shown in the

illustration.

2. Tighten the nut on the special tool to press down on the

spring retainer and reverse clutch retainer, and then install
the snap ring.

3. Check that the clearance between the snap ring and the

return spring retainer is within the standard value. If not
within the standard value, select a snap ring to adjust.

Standard value: 0

−−−−

0.09 mm (0

−−−−

0.0035 inch)

AKX01046

MD998924

MD999590

AB

AKX01048

HOLE "A"

HOLE "B"

AB

AKX01046

MD998924

MD999590

AB

REVERSE AND OVERDRIVE CLUTCH

TSB Revision

AUTOMATIC TRANSAXLE OVERHAUL

23B-56

>>D<< PRESSURE PLATE/CLUTCH PLATE/CLUTCH DISC/
CLUTCH REACTION PLATE INSTALLATION
1. Install the pressure plate in the direction shown <F4A51>.

CAUTION

Immerse the clutch disc in ATF before assembling it.
Especially if the clutch disc is new, use it only after it has
been immersed in ATF for more than two hours.
2. Assemble the clutch discs and clutch plates, one on top of

the other, inside the reverse clutch piston.

NUMBER OF CLUTCH DISCS AND PLATES

3. Install the clutch reaction plate in the direction shown.

>>E<< SNAP RING INSTALLATION
1. Install the snap ring into the groove in the reverse clutch

piston.

2. Set special tools MB991628 <F4A42>, MB991629 <F4A51>

and MD998924 as shown in the illustration, and compress
the clutch element.

3. Check that the clearance between the snap ring and the

clutch reaction plate is within the standard value. If not within
the standard value, select a snap ring to adjust.

Standard value: 1.6

−−−−

18 mm (0.0630

−−−−

0.0709 inch)

MODEL PRESSURE

PLATE

CLUTCH
DISC

CLUTCH
PLATE

CLUTCH
REACTION
PLATE

F4A42

-

4

4

1

F4A51

1

4

3

1

AKX00956

<F4A42>

CLUTCH PLATES

ROUNDED EDGE

CLUTCH DISCS

CLUTCH DISCS

<F4A51>

CLUTCH
PLATES

ROUNDED EDGE

PRESSURE
PLATE

AB

CLUTCH
REACTION
PLATE

CLUTCH
REACTION
PLATE

AKX01049

MB991628
<F4A42> OR
MB991629
<F4A51>

MD998924

AB