Page 4829 of 5135

D04077
D08129
D03703
SST
Snap Ring
C56359
Clutch
Balancer
Underdrive
Clutch Drum
− AUTOMATIC TRANSMISSION / TRANSUNDERDRIVE CLUTCH ASSY (U151E/U151F)
40−95
U151E, U151F A/T REPAIR MANUAL (RM1021U)
4. INSPECT UNDERDRIVE CLUTCH DISC NO.1
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt. If necessary, replace them.
HINT:
SIf the lining of the disc comes off or discolors, or even if a
part of the groove is defaced, replace all discs.
SBefore assembling new discs, soak them in ATF for at
least15 minutes.
5. INSPECT UNDERDRIVE CLUTCH DRUM SUB−ASSY
(a) Using a dial indicator, measure the inside diameter of the
underdrive clutch drum bushing.
Standard drum bushing:
37.06−37.08 mm (1.4591−1.4598 in.)
Maximum drum bushing: 37.13mm(1.4618 in.)
If the inside diameter is greater than the maximum, replace the
underdrive clutch drum.
6. REMOVE UNDERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Place SST on the clutch balancer and compress the
spring with a press.
SST 09350−32014 (09351−32070)
(b) Using a snap ring expander, remove the snap ring.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
groove.
SThis prevents the spring sheet from being deformed.
SDo not expand the snap ring excessively.
(c) Remove the clutch balancer from the underdrive clutch
drum.
Page 4830 of 5135

C56360
D03824
D03705
D26465
O−ring
D26465
O−ring
40−96
− AUTOMATIC TRANSMISSION / TRANSUNDERDRIVE CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
(d) Remove the return spring from the underdrive clutch
drum.
7. INSPECT UNDERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Using a vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length:17.14 mm (0.6752 in.)
8. REMOVE UNDERDRIVE CLUTCH PISTON SET
(a) Install the underdrive clutch to the transaxle case.
NOTICE:
Be careful not to damage the oil seal ring.
(b) Holding the underdrive clutch piston by hand, apply com-
pressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the transaxle
case to remove the underdrive clutch piston.
9. REMOVE UNDERDRIVE CLUTCH DRUM O−RING
(a) Using a screwdriver, remove the O−ring from the under-
drive clutch drum.
10. INSTALL UNDERDRIVE CLUTCH DRUM O−RING
(a) Apply the new O−ring with ATF, install it to the underdrive
clutch drum.
NOTICE:
Assemble the O−ring carefully not to have a twist and a
pinching.
Page 4831 of 5135

D03860
C56360
Underdrive
Clutch
Return
Spring
Underdrive
Clutch Drum
C56359
Clutch
Balancer
Underdrive
Clutch Drum
D03703
SST
− AUTOMATIC TRANSMISSION / TRANSUNDERDRIVE CLUTCH ASSY (U151E/U151F)
40−97
U151E, U151F A/T REPAIR MANUAL (RM1021U)
11. INSTALL UNDERDRIVE CLUTCH PISTON SET
(a) Coat the underdrive clutch piston with ATF, install it to the
underdrive clutch piston drum.
NOTICE:
SBe careful not to damage the O−ring.
SBe careful not to damage the lip seal of the piston.
12. INSTALL UNDERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Install the return spring to the underdrive clutch drum.
NOTICE:
Installing the spring sub−assembly, check all of the
springs are fit in the piston correctly.
(b) Coat the clutch balancer with ATF.
(c) Install the clutch balancer to the underdrive clutch drum.
NOTICE:
Be careful not to damage the lip seal of the clutch balancer.
(d) Place SST on the clutch balancer and compress the pis-
ton return spring with a press.
SST 09350−32014 (09351−32070)
(e) Using a snap ring expander, install the snap ring to the un-
derdrive clutch drum.
(f) Be sure the end gap of the snap ring is not aligned with
the spring retainer claw.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
grove.
SThis prevents the spring sheet from being deformed.
SDo not expand the snap ring excessively.
Page 4832 of 5135

D25592
StopperStopper
D26431
Disc
Flange
Plate
D03701
D26429
40−98
− AUTOMATIC TRANSMISSION / TRANSUNDERDRIVE CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
(g) Set the end gap of the snap ring in the underdrive clutch
drum shown in the illustration.
NOTICE:
The end gap of the snap ring should not coincide with any
of the stopper.
13. INSTALL UNDERDRIVE CLUTCH DISC NO.1
(a) Apply the 4 discs with ATF.
(b) Install the 4 plates, 4 discs and flange to the underdrive
clutch drum.
NOTICE:
Be careful about the order of discs, plates and flange as-
sembly.
14. INSTALL UNDERDRIVE CLUTCH FLANGE NO.2
HOLE SNAP RING
(a) Using a screwdriver, install the underdrive clutch flange
No.2 hole snap ring.
(b) Check that the end gap of snap ring is not aligned with one
of the cutouts.
NOTICE:
The snap ring should be fixed certainly in the groove of the
drum.
15. INSPECT UNDERDRIVE PACK CLEARANCE
(a) Install the underdrive clutch to the transaxle case.
NOTICE:
Be careful not to damage the oil seal ring.
(b) Set a dial indicator as shown in the illustration.
(c) Measure the underdrive clutch piston stroke while apply-
ing and releasing compressed air (392 kPa, 4.0 kgf/cm
2,
57 psi).
Park clearance:1.51−1.71mm (0.0594−0.0673 in.)
If the pack clearance is less than the minimum, parts may have
been assembled incorrectly, so check and reassemble again.
If the pack clearance is not within standard, select another
flange.
HINT:
There are 5 flanges in different thickness.
Flange thickness: mm (in.)
MarkThicknessMarkThickness
13.0 (0.118)43.1(0.122)
23.2 (0.126)53.3 (0.130)
33.4 (0.134)−−
Page 4836 of 5135
400H2−02
D26426
D26427
40−84
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
DIRECT CLUTCH ASSY (U151E/U151F)
OVERHAUL
1. INSPECT PACK CLEARANCE OF REVERSE CLUTCH
(a) Install the intermediate shaft and needle roller bearing on
the transaxle rear cover .
(b) Using a dial indicator, measure the reverse clutch pack
clearance while applying and releasing compressed air
(392 kPa, 4.0 kgf/cm
2, 57 psi).
Pack clearance:0.60−0.82 mm (0.02362−0.03228 in.)
If the pack clearance is not within standard, inspect the discs,
plates and flange.
2. INSPECT PACK CLEARANCE OF DIRECT CLUTCH &
OVERDRIVE CLUTCH
(a) Using a dial indicator, measure the direct clutch & over-
drive clutch pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi).
Pack clearance:0.61−0.83 mm (0.02401−0.03268 in.)
If the pack clearance is not within standard, inspect the discs,
plates and flange.
Page 4837 of 5135

D26419
Snap Ring
D26420
D26718
D26422
D26719
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
40−85
U151E, U151F A/T REPAIR MANUAL (RM1021U)
3. REMOVE DIRECT MULTIPLE DISC CLUTCH CLUTCH
DISC
(a) Using a screwdriver, remove the snap ring from the inter-
mediate shaft.
(b) Remove the flange, 3 discs,, 3 plates and cushion plate
from the intermediate shaft.
4. INSPECT DIRECT MULTIPLE DISC CLUTCH CLUTCH
DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
SIf the lining of the disc comes off or discolors, or even if a
part of the groove is defaced, replace all discs.
SBefore assembling new discs, soak them in ATF for at
least15 minutes.
5. REMOVE OVERDRIVE DIRECT CLUTCH DISC
(a) Using a screwdriver, remove the snap ring from the inter-
mediate shaft.
(b) Remove the flange, 4 discs and 4 plates from the inter-
mediate shaft.
6. INSPECT OVERDRIVE DIRECT CLUTCH DISC
(a) Check to see if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
HINT:
SIf the lining of the disc comes off or discolors, or even if a
part of the groove is defaced, replace all discs.
SBefore assembling new discs, soak them in ATF for at
least15 minutes.
Page 4838 of 5135

D03677
SST
D26424
Clutch
Balancer
Direct Clutch
Drum
D26423
Direct Clutch
Drum
Overdrive
Clutch Return
Spring
D09211
Overdrive Clutch
Return Spring
40−86
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
U151E, U151F A/T REPAIR MANUAL (RM1021U)
7. REMOVE OVERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Place SST on the clutch balancer and compress the
spring with a press.
SST 09387−00020
(b) Using a snap ring expander, remove the snap ring from
the direct clutch drum.
NOTICE:
SStop the press when the spring sheet is lowered to the
place1−2 mm (0.039−0.078 in.) from the snap ring
groove.
SThis prevents the spring sheet from being deformed.
SDo not expand the snap ring excessively.
(c) Remove the clutch balancer from the direct clutch drum.
(d) Remove the overdrive clutch return spring from the direct
clutch drum.
8. INSPECT OVERDRIVE CLUTCH RETURN SPRING
SUB−ASSY
(a) Using vernier calipers, measure the free length of the
spring together with the spring seat.
Standard free length: 25.91mm (1.0201in.)
Page 4839 of 5135

D26463
D26425
D26464
O−ring
D26464
O−ring
D26462
Intermediate
ShaftDirect Clutch
Drum
− AUTOMATIC TRANSMISSION / TRANSDIRECT CLUTCH ASSY (U151E/U151F)
40−87
U151E, U151F A/T REPAIR MANUAL (RM1021U)
9. REMOVE OVERDRIVE DIRECT CLUTCH PISTON
(a) Install intermediate shaft on the transaxle rear cover.
(b) Holding the direct clutch piston with your hand, apply
compressed air (392 kPa, 4.0 kgf/cm
2,57psi)tothe
transaxle rear cover to remove the direct clutch piston.
10. REMOVE OVERDRIVE DIRECT CLUTCH DRUM
SUB−ASSY
(a) Holding the direct clutch drum by hand, apply com-
pressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the transaxle
rear cover to remove the direct clutch drum.
11. REMOVE OVERDRIVE DIRECT CLUCH O−RING
(a) Using a screwdriver, remove the O−ring from the direct
clutch drum.
12. INSTALL OVERDRIVE DIRECT CLUCH O−RING
(a) Coat a O−ring with ATF, and install it to the direct clutch
drum.
NOTICE:
Assemble the O−ring carefully not to have a twist and a
pinching.
13. INSTALL OVERDRIVE DIRECT CLUTCH DRUM
SUB−ASSY
(a) Coat the direct clutch drum with ATF, and install it to the
intermediate shaft.
NOTICE:
SBe careful not to damage the O−ring.
SBe careful not to damage the lip seal of the direct
clutch drum.