Mitsubishi Evolution X. Manual - part 381

REVERSE IDLER GEAR

TSB Revision

MANUAL TRANSAXLE OVERHAUL

22B-37

REVERSE IDLER GEAR

DISASSEMBLY AND ASSEMBLY

M1222012500299

AK702513AC

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Apply gear oil to
all moving parts
before installation.

Removal steps 

>>C<<

1. Snap ring
2. Thrust washer A
3. Thrust bearing
4. Reverse idler gear A
5. Needle bearing
6. Needle bearing

>>B<<

7. Synchronizer sleeve
8. Synchronizer ring
9. Synchronizer key

10. Thrust bearing
11. Thrust washer B
12. Steel ball

>>A<<

13. Thrust bearing
14. Reverse idler gear B
15. Needle bearing
16. Needle bearing

>>A<<

17. Thrust bearing
18. Reverse idler gear shaft

Removal steps (Continued)

REVERSE IDLER GEAR

TSB Revision

MANUAL TRANSAXLE OVERHAUL

22B-38

DISASSEMBLY SERVICE POINTS

.

>>A<< THRUST BEARING INSTALLATION

AK703381

AC

Thin

Thich

Thich

Thin

Reverse idler
gear shaft

Thrust bearing

Install the thrust bearing as shown.

.

>>B<< SYNCHRONIZER SLEEVE INSTALLATION

AK703156

Installation
direction

Identification
groove

AC

Install the synchronizer sleeve in the illustrated direction.

.

>>C<< SNAP RING INSTALLATION

AK703318AC

Snap ring

Thrust washer

.Select and install appropriate snap ring onto the reverse idler 
gear shaft so that the clearance of the thrust washer A meets 
the standard value.

Standard Value: 0 

− 0.11 mm (0 − 0.0043 inch)

REVERSE IDLER GEAR

TSB Revision

MANUAL TRANSAXLE OVERHAUL

22B-39

INSPECTION

M1222012400117

.

REVERSE IDLER GEAR

AK204103AD

1. Check that the synchronizer ring clutch gear teeth are free of 

damage.

2. Check that the inside surface of the synchronizer ring cone 

is free of damage and wear.

3. Check that the synchronizer ring and synchronizer key are 

not damaged or worn in the contact surface.

4. Press the synchronizer ring against the gear and check 

clearance "A". If "A" is less than the limit value, replace the 
synchronizer ring.

Limit: 0.5 mm (0.02 inch)

.

NEEDLE BEARING

1. Assemble the needle bearing with the reverse idler shaft 

and gear, and check that the bearing rotates smoothly 
without noise or play.

2. Check that needle bearing retaining sleeve for deformation.

.

REVERSE IDLER GEAR

AK703383AC

Reverse idler gear A

1. Check that the helical gear and the tooth surfaces of the 

clutch gear of the reverse idler gear A are free of damage or 
wear.

2. Check that the synchronizer ring of the reverse idler gear A 

is not roughened, damaged or worn in the surface.

3. Check that the helical gear of the reverse idler gear is free of 

damage or wear.

CONTROL HOUSING

TSB Revision

MANUAL TRANSAXLE OVERHAUL

22B-40

CONTROL HOUSING

DISASSEMBLY AND ASSEMBLY

M1222013100391

AK702514AC

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19 ± 3 N·m
14 ± 2 ft-lb

1

Removal steps 

1. Stopper bracket mounting bolt
2. Spring washer

>>D<<

3. Stopper bracket

<<A>>

>>C<<

4. Lock pin
5. Snap ring
6. Return spring holder B
7. Return spring
8. Return spring holder A

9. Washer
10.Interlock plate
11. Neutral return spring
12.Control shaft
13.Control shaft boot

<<B>>

>>B<<

14.Oil seal

<<C>>

>>A<<

15.Slide ball bearing
16.Control housing

Required Special Tools:

• MD999566: Claw

• MB990947: Lower arm bushing arbor

• MB990984: Mount bushing remover and installer 

arbor

• MB991246: Lower arm bushing arbor

Removal steps (Continued)