Mitsubishi Grandis. Manual — part 971
OIL PUMP
AUTOMATIC TRANSMISSION OVERHAUL
23B-40
CAUTION
Apply ATF to the oil pump drive hub before
installing the torque converter. Be careful not to
damage the oil seal lip when installing the torque
converter.
94.Install the torque converter, and secure it so that
the dimension (A) indicated in the drawing meets
the reference value.
Reference value: 12.2 mm
OIL PUMP
DISASSEMBLY AND REASSEMBLY
M1233001300187
AK301063AC
1
3
2
Apply automatic
transmission fluid
to all moving parts
before installation.
Disassembly steps
>>B<<
1.
O-ring
2.
Seal ring
>>A<<
3.
Oil seal
Disassembly steps (Continued)
UNDERDRIVE CLUTCH AND INPUT SHAFT
AUTOMATIC TRANSMISSION OVERHAUL
23B-41
REASSEMBLY SERVICE POINTS
>>A<< OIL SEAL INSTALLATION
Use the special tool Oil seal installer (MD998334) to
install the oil seal.
>>B<< O-RING INSTALLATION
Install a new O-ring in the groove on the periphery of
the oil pump, and apply ATF, blue petrolatum jelly or
white Vaseline to the periphery of the O-ring.
UNDERDRIVE CLUTCH AND INPUT SHAFT
DISASSEMBLY AND REASSEMBLY
M1233020900133
AK300522AC
MD998334
AK301062AC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Apply automatic
transmission fluid
to all moving parts
before installation.
UNDERDRIVE CLUTCH AND INPUT SHAFT
AUTOMATIC TRANSMISSION OVERHAUL
23B-42
DISASSEMBLY SERVICE POINTS
<<A>> SNAP RING REMOVAL
Use the special tools to remove the snap ring.
• Spring compressor (MD998907)
• Spring compressor retainer (MD998924)
REASSEMBLY SERVICE POINTS
>>A<< D-RING INSTALLATION
Apply ATF, blue petrolatum jelly or white Vaseline to
the D-rings and handle them carefully not to damage
them during installation.
>>B<< SNAP RING INSTALLATION
Use the special tools to install the snap ring.
• Spring compressor (MD998907)
• Spring compressor retainer (MD998924)
>>C<< CLUTCH PLATE/CLUTCH
DISC/CLUTCH REACTION PLATE
INSTALLATION
CAUTION
Soak the clutch discs in ATF before assembling
it.
1. Assemble the clutch plates, clutch discs, and
clutch reaction plates with their non-toothed
portions (A in the drawing) aligned with the hole
(B in the drawing) formed in a crest of the
underdrive clutch retainer.
2. Orient the clutch reaction plate as shown in the
drawing when it is installed.
>>D<< SNAP RING INSTALLATION
1. Install the snap ring.
Disassembly steps
1.
Snap ring
2.
Input shaft
3.
Seal ring
>>D<<
4.
Snap ring
>>C<<
5.
Clutch reaction plate
>>C<<
6.
Clutch disc
>>C<<
7.
Clutch plate
<<A>>
>>B<<
8.
Snap ring
9.
Spring retainer
>>A<<
10. D-ring
11. Return spring
12. Underdrive clutch piston
>>A<<
13. D-ring
>>A<<
14. D-ring
15. Underdrive clutch retainer
AK300523AC
MD998907
MD998924
AK301292AB
D-ring
Underdrive clutch retainer
Underdrive clutch piston
Spring retainer
AK300523AC
MD998907
MD998924
AK301272AB
A
B
AK202042
Clutch
plates
Shear droop
Clutch
reaction
plate
Clutch discs
AB
REVERSE AND OVERDRIVE CLUTCH
AUTOMATIC TRANSMISSION OVERHAUL
23B-43
2. Press down the clutch reaction plate on its entire
circumference using the special tools.
• Spring compressor (MB991628)
• Spring compressor retainer (MD998924)
3. Check the clearance between the snap ring and
clutch reaction plate. If the clearance is not within
the standard value range, make adjustment by
selecting a snap ring of an appropriate thickness.
Standard value:1.6
− 1.8 mm
REVERSE AND OVERDRIVE CLUTCH
DISASSEMBLY AND REASSEMBLY
M1233021200182
AK300524AC
MD998924
MB991628
AK301054AC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
1 2 4
6
8
13
15
19
12
17
18
16
14
11
7
3
5
9
10
Apply automatic
transmission fluid
to all moving parts
before installation.
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