Page 2417 of 2870

4AT-103
AUTOMATIC TRANSMISSION
Torque Converter Clutch Case
B: INSTALLATION
1) Check the appearance of each component and
clean them.
2) Press-fit the new oil seal to torque converter
clutch case using ST.
ST 398437700 DRIFT
3) Install the differential assembly to case.
4AT-117, INSTALLATION, Front Differential.>
4) Install the left and right side retainers.
4AT-121, ADJUSTMENT, Front Differential.>
5) Install the new seal pipe to torque converter
clutch case.
6) Install the new rubber seal to torque converter
clutch case.7) Apply proper amount of liquid gasket to the en-
tire matching surface of torque converter clutch
case.
Liquid gasket:
THREE BOND 1215 (Part No. 004403007)
8) Install the torque converter clutch case assem-
bly without damaging bushing and oil seal.
Tightening torque:
41 N
⋅m (4.2 kgf-m, 30.4 ft-lb)
9) Insert the inhibitor switch connector and trans-
mission connector to the stay.
10) Install the air breather hose.
INSTALLATION, Air Breather Hose.>
11) Install the ATF cooler pipe.
STALLATION, ATF Cooler Pipe and Hose.>
12) Install the ATF charger pipe with O-ring.
to 4AT-88, INSTALLATION, Oil Charger Pipe.>
(A) Seal pipe
(A) Rubber seal
AT-00177
AT-00176
AT-00178
(A)
(A) THREE BOND 1215
(B) Rubber seal
(B)
(A)
AT-00179
AT-00175
Page 2418 of 2870
4AT-104
AUTOMATIC TRANSMISSION
Torque Converter Clutch Case
13) Insert the input shaft with rotating it by hand
lightly, and then check the protrusion amount.
Normal protrusion A:
50 — 55 mm (1.97 — 2.17 in)
14) Install the torque converter clutch assembly.
er Clutch Assembly.>
15) Install the transmission assembly into the vehi-
cle.
Transmission Assembly.>
C: INSPECTION
Measure the backlash, and then adjust it within
specification.
Drive Pinion Shaft Assembly.>
AT-00291
A
Page 2419 of 2870

4AT-105
AUTOMATIC TRANSMISSION
Oil Pump Housing
35.Oil Pump Housing
A: REMOVAL
1) Remove the transmission assembly from vehi-
cle.
mission Assembly.>
2) Pull out the torque converter clutch assembly.
Clutch Assembly.>
3) Remove the input shaft.
4) Lift-up the lever on rear side of transmission har-
ness connector, and then disconnect it from the
stay.
5) Disconnect the inhibitor switch connector from
the stay.
6) Remove the ATF charger pipe.
REMOVAL, Oil Charger Pipe.>
7) Remove the ATF cooler inlet and outlet pipes.
Hose.>
8) Separate the torque converter clutch case and
transmission case part.
MOVAL, Torque Converter Clutch Case.>
9) Separate the transmission case and extension
case part.
Case.>
10) Remove the reduction drive gear.
99, REMOVAL, Reduction Drive Gear.>
11) Remove the reduction driven gear.
4AT-97, REMOVAL, Reduction Driven Gear.>
12) Loosen the oil pump housing mounting bolts.13) Place two wooden blocks on the workbench,
and stand the transmission case with its rear end
facing down.
CAUTION:
Be careful not to scratch the rear mating sur-
face of transmission case.
NOTE:
Check the height of wooden blocks to avoid dam-
aging the protrudes that on the mating surface of
parking rod and drive pinion.
14) Remove the oil pump housing and adjusting
thrust washer.
B: INSTALLATION
1) Secure the oil pump housing with two nuts and a
bolt.
Tightening torque:
42 N
⋅m (4.3 kgf-m, 31 ft-lb)
AT-00114
AT-01034
(A) Oil pump housing
(A) Oil pump housing
AT-00181
(2.17in)55mm
AT-00182
(A)
AT-01035
(A)
Page 2420 of 2870

4AT-106
AUTOMATIC TRANSMISSION
Oil Pump Housing
2) Install the torque converter clutch case to trans-
mission case.
Torque Converter Clutch Assembly.>
3) Install the reduction driven gear.
97, INSTALLATION, Reduction Driven Gear.>
4) Install the reduction drive gear.
INSTALLATION, Reduction Drive Gear.>
5) Align the transmission case and extension case.
Case.>
6) Insert the inhibitor switch and transmission con-
nector to the stay.
7) Install the ATF cooler pipe.
STALLATION, ATF Cooler Pipe and Hose.>
8) Install the ATF charger pipe with O-ring.
4AT-88, INSTALLATION, Oil Charger Pipe.>
9) Insert the input shaft with rotating it by hand
lightly, and then check the protrusion amount.
Normal protrusion A:
50 — 55 mm (1.97 — 2.17 in)
10) Install the torque converter clutch assembly.
er Clutch Assembly.>
11) Install the transmission assembly into the vehi-
cle.
Transmission Assembly.>C: DISASSEMBLY
1. OIL PUMP COVER
1) Remove four seal rings.
2) Remove the installing bolt, and then remove the
cover by lightly tapping the end of starter shaft.
3) Remove the oil pump inner and outer rotor.
(A) Transmission harness ASSY
(B) Inhibitor switch harness
AT-01351
(B)(A)
AT-00291
A
(A) Seal ring
(A) Oil pump cover
(B) Oil pump housing
(A) Oil pump inner rotor
(B) Oil pump outer rotor
AT-00189
(A)
AT-00190
(A)(B)
AT-01036
(A)(B)
Page 2421 of 2870
4AT-107
AUTOMATIC TRANSMISSION
Oil Pump Housing
2. OIL SEAL RETAINER
1) Remove the oil seal retainer.
2) Remove the O-ring.
3) Remove the oil seal from oil seal retainer.
D: ASSEMBLY
1. OIL PUMP COVER
1) Install the oil pump rotor assembly to oil pump
housing.
2) Align both pivots with the pivot holes of cover,
and then install the oil pump cover being careful not
to apply excessive force to the pivots.
Tightening torque:
25 N
⋅m (2.5 kgf-m, 18.1 ft-lb)
3) After assembling, turn the oil pump shaft to
check the smooth rotation of rotor.
(A) Oil seal retainer
(B) Drive pinion shaft
(A) O-ring
(A) Oil seal
(B) Oil seal retainer
AT-00183
(A)(B)
AT-00186
(A)
AT-00185
(A)
(B)
(A) Oil pump inner rotor
(B) Oil pump outer rotor
(A) Oil pump cover
(B) Oil pump housing
AT-01036
(A)(B)
AT-00190
(A)(B)
Page 2422 of 2870

4AT-108
AUTOMATIC TRANSMISSION
Oil Pump Housing
4) Install the oil seal retainer and new seal rings.
After installing, adjust the tooth contact and back-
lash of drive pinion.
MENT, Oil Pump Housing.>
CAUTION:
There are two kinds of seal rings and those are
identified by color. Be sure to install proper po-
sitions with referring figure.
2. OIL SEAL RETAINER
1) Install two new oil seals to oil seal retainer in
proper direction using ST.
ST 499247300 INSTALLER
2) Install a new O-ring to oil seal retainer using va-
seline.3) Install the oil seal and secure it using three bolts
being careful not to damage oil seal lip.
Tightening torque:
7 N
⋅m (0.7 kgf-m, 5.1 ft-lb)
E: INSPECTION
1) Check seal ring and oil seal for breaks or dam-
ages.
2) Check other parts for dents or abnormalities.
3) Selection of oil pump rotor assembly
(1) Tip clearance
Install the oil pump inner rotor and oil pump out-
er rotor to oil pump. With rotor gears facing each
other, measure crest-to-crest clearance.
Tip clearance:
0.02 — 0.15 mm (0.0008 — 0.0059 in)(A) Seal ring (Black)
(B) Seal ring (Brown)
(A) Oil seal
(B) Oil seal retainer
(A) O-ring
AT-01307
(A)
(B)
AT-00185
(A)
(B)
AT-00186
(A)
(A) Oil seal retainer
(B) Drive pinion shaft
(A) Thickness gauge
(B) Oil pump inner rotor
(C) Oil pump outer rotor
AT-00183
(A)(B)
AT-01038
(B)(C) (A)
Page 2423 of 2870

4AT-109
AUTOMATIC TRANSMISSION
Oil Pump Housing
(2) Side clearance
Set depth gauge to oil pump housing, then mea-
sure oil pump housing-to-oil pump rotor clear-
ance.
Side clearance:
0.02 — 0.04 mm (0.0008 — 0.0016 in)
(3) If the depth and/or side clearance are not
within the specifications, replace the oil pump
rotor assembly.
Measure the total end play and adjust it within
specifications.
MENT, Oil Pump Housing.>
F: ADJUSTMENT
1) Using ST, measure length “L”, which is from
mating surface of transmission case to concave
side of high clutch drum.
ST 398643600 GAUGE2) Using ST, measure the length from oil pump
housing mating surface to top surface of oil pump
cover with thrust needle bearing.
ST 398643600 GAUGE
3) Calculation of total end play
Select the suitable thrust needle bearing from
among those listed in this table so that clearance C
within 0.25 to 0.55 mm (0.0098 to 0.0217 in).
C = (L+G) −2
(A) DEPTH GAUGE
(B) Oil pump inner rotor
(C) Oil pump outer rotor
Oil pump rotor ASSY
TOOL NUM-
BERThickness mm (in)
15008AA060 11.37 — 11.38 (0.4476 — 0.4480)
15008AA070 11.38 — 11.39 (0.4480 — 0.4484)
15008AA080 11.39 — 11.40 (0.4484 — 0.4488)
AT-01039
(A)
(B)
(C)
AT-00194
L
ST
CClearance between concave portion of high
clutch and end of clutch drum support
LLength from transmission case mating surface
to concave portion of high clutch
G Gasket thickness [0.28 mm (0.0110 in)]
2Height from oil pump housing mating surface to
upper surface of oil pump cover with thrust nee-
dle bearing
Thrust needle bearing
TOOL NUMBER Thickness mm (in)
806528050 4.1 (0.161)
806528060 4.3 (0.169)
806528070 4.5 (0.177)
806528080 4.7 (0.185)
806528090 4.9 (0.193)
806528100 5.1 (0.201)
AT-00195
ST
AT-00196
G
L
Page 2424 of 2870
4AT-110
AUTOMATIC TRANSMISSION
Oil Pump Housing
4) After completing the end play adjustment, insert
the bearing race in recess of the high clutch. Install
the thrust needle bearing to oil pump cover using
vaseline.
5) After correctly install the new gasket to the case
mating surface, carefully install the oil pump hous-
ing assembly. Be careful to avoid hitting the drive
pinion against the inside of case.
6) Install both parts with dowel pins aligned. Make
sure no clearance at mating surface.