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A340E(Others) AUTOMATIC TRANSMISSIONOIL PUMP -
AT-40
3. REMOVE THRUST WASHER FROM STATOR SHAFT
BACK SIDE
4. REMOVE STATOR SHAFT
(a) Remove the 13 bolts, and then remove the stator shaft
from the oil pump body.
(b) Remove the oil pump body from the torque converter
clutch.
5. REMOVE OIL PUMP DRIVE GEAR AND DRIVEN GEAR
6. REMOVE OIL SEAL
Pry off the oil seal with a screwdriver.
OIL PUMP INSPECTION
1. CHECK BODY CLEARANCE OF DRIVEN GEAR
Push the driven gear to one side of the body.
Using a feeler gauge, measure the clearance.
Standard body clearance:
0.07-0.15 mm (0.0028-0.0059 in.)
Maximum body clearance:
0.3 mm (0.012 in.)
AX0AN-0C
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If the body clearance is greater than the maximum, re-
place the drive gear, driven gear or pump body.
2. CHECK TIP CLEARANCE OF DRIVEN GEAR
Measure between the driven gear teeth and the cres-
cent-shaped part of the pump body.
Standard tip clearance:
0.11-0.14 mm (0.0043-0.0055 in.)
Maximum tip clearance:
0.3 mm (0.012 in.)
If the tip clearance is greater than the maximum, replace
the drive gear, driven gear or pump body.
3. CHECK SIDE CLEARANCE OF BOTH GEARS
Using a steel straight edge and a feeler gauge, measure
the side clearance of both gears.
Standard side clearance:
0.02-0.05 mm (0.0008-0.0020 in.)
Maximum side clearance:
0.1 mm (0.004 in.)
If the side clearance is greater than the maximum, select
and replace the gears as a set.
Drive gear and driven gear thicknesses
mm (in.)
MarkThickness
19.440-9.449
(0.3717-0.3720)
29.450-9.459
(0.3720-0.3724)
39.460-9.470
(0.3724-0.3728)
49.471-9.480
(0.3720-0.3724)
59.481-9.490
(0.3729-0.3736)
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A340E(Others) AUTOMATIC TRANSMISSIONOIL PUMP -
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4. CHECK OIL PUMP BODY BUSHING
Using a dial indicator, measure the inside diameter of the
oil pump body bushing.
Maximum inside diameter:
38.19 mm (1.5035 in.)
If the inside diameter is greater than the maximum, re-
place the oil pump body.
5. CHECK STATOR SHAFT BUSHINGS
Using a dial indicator, measure the inside diameter of the
stator shaft bushing.
Maximum inside diameter:
Front side 21.58 mm (0.8496 in.)
Rear side 27.08 mm (1.0661 in.)
If the inside diameter is greater than the maximum, re-
place the stator shaft.
OIL PUMP ASSEMBLY
1. INSTALL FRONT OIL SEAL
(a) Using SST and a hammer, install a new oil seal. The seal
end should be flush with the outer edge of the pump body.
SST 09350-30020 (09351-32140)
(b) Coat the oil seal lip with MP grease.
2. INSTALL DRIVEN GEAR AND DRIVE GEAR TO OIL
PUMP BODY
(a) Place the oil pump body on the torque converter clutch.
(b) Coat the driven gear and drive gear with ATF.
(c) Install the driven gear and drive gear.
3. INSTALL STATOR SHAFT TO PUMP BODY
(a) Align the stator shaft with each bolt hole.
(b) Tighten the 13 bolts.
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
AX0AP-0C
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4. INSTALL THRUST WASHER
(a) Coat the thrust washer with petroleum jelly.
(b) Align the tab of the washer with the hollow of the pump
body.
5. INSTALL OIL SEAL RINGS
(a) Coat the 2 oil seal rings with ATF.
(b) Install the 2 oil seal rings to the stator shaft groove, then
snug them down by squeezing their ends together.
NOTICE: Do not spread the ring ends too much.
HINT: After installing the oil seal rings, check that they ro-
tate smoothly.
6. CHECK OIL PUMP DRIVE GEAR ROTATION
Make sure the drive gear rotates smoothly.
Page 301 of 2543
A340E(Others) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-44
OVERDRIVE DIRECT CLUTCH
COMPONENTS
OVERDRIVE PLANETARY GEAR,
OVERDRIVE DIRECT CLUTCH AND
OVERDRIVE ONE-WAY CLUTCH
DISASSEMBLY
1. CHECK OPERATION OF ONE-WAY CLUTCH
Hold the O/D direct clutch drum and turn the input shaft.
Check that the input shaft must be able to turn freely
clockwise and locks counterclockwise.
2. REMOVE OVERDRIVE DIRECT CLUTCH ASSEMBLY
FROM OVERDRIVE PLANETARY GEAR
AT05B-04
AT05C-08
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A340E(Others) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-45
3. CHECK PISTON STROKE OF OVERDRIVE DIRECT
CLUTCH
(a) Place the oil pump onto the torque converter clutch, and
then place the O/D direct clutch assembly onto the oil
pump.
(b) Using SST and a dial indicator, measure the O/D direct
clutch piston stroke while applying and releasing com-
pressed air (392-785 kPa, 4-8 kgf/cm
2, 57-114 psi).
SST 09350-30020 (09350-06120)
Piston stroke:
SUPRA:
1.45-1.70 mm (0.0571-0.0669 in.)
OTHERS:
1.85-2.15 mm (0.0728-0.0846 in.)
If the values are non-standard, inspect the discs.
4. REMOVE FLANGE, PLATES AND DISCS
(a) Using a screwdriver, remove the snap ring from the O/D
direct clutch drum.
(b) Remove the flange, plates and discs.
5. REMOVE PISTON RETURN SPRING
(a) Place SST on the spring retainer and compress the return
spring with a shop press.
SST 09350-30020 (09350-07040)
(b) Using snap ring pliers, remove the snap ring.
(c) Remove the piston return spring.
6. REMOVE OVERDRIVE DIRECT CLUTCH PISTON
(a) Place the oil pump onto the torque converter clutch and
then place the O/D direct clutch onto the oil pump.
(b) Hold the O/D direct clutch piston with hand, apply com-
pressed air to the oil pump to remove the O/D direct clutch
piston.
(c) Remove the O/D direct clutch piston.
(d) Remove the 2 O-rings from the piston.
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A340E(Others) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-46
7. REMOVE RING GEAR FLANGE
(a) Using a screwdriver, remove the snap ring.
(b) Remove the ring gear flange.
8. REMOVE RETAINING PLATE
(a) Using a screwdriver, remove the snap ring.
(b) Remove the retaining plate.
9. REMOVE OVERDRIVE ONE- WAY CLUTCH WITH
OUTER RACE
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A340E(Others) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-47
10. REMOVE ONE-WAY CLUTCH FROM OUTER RACE
11. REMOVE THRUST WASHER