TOYOTA CAMRY 1999 Service Repair Manual

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±71
8. ADJUST PRELOAD OF COUNTER DRIVE GEAR
(a) Place SST onto the adjusting nut and hold the shaft in a
vise with soft jaws.
SST 09350±32014 (09351±32080)
(b) Tighten the adjusting nut until the following gear starting
load occurs with a tension gauge.
Preload (at starting):
9 ± 15 N (920 ± 1,530 gf, 2.0 ± 3.4 lbf)
HINT: Turn the counter drive gear right and left several
times before measuring the preload.
(c) Lock the adjusting nut with one tab on locking washer.
Bend the locking washer tab until it is even with the adjust-
ing nut groove.
9. INSTALL PINION SHAFT PLUGS
Install the 4 plugs into the pinion shaft.
10. INSTALL NO.3 OVERDRIVE PLANETARY THRUST
WASHER
Install the thrust washer, facing the groove toward the ov-
erdrive case.
11. ASSEMBLE OVERDRIVE ONE±WAY CLUTCH
(a) Install the one±way clutch into the outer race.
(b) Install a retainer on both sides of the one±way clutch.

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±72
12. INSTALL OVERDRIVE ONE±WAY CLUTCH INTO HUB
Be sure that the one±way clutch is installed in the correct
direction.
13. INSTALL RETAINING PLATE
(a) Place the retaining plate into the hub.
(b) Install the snap ring with a screwdriver.
14. CHECK OPERATION OF ONE±WAY CLUTCH
(a) While turning the overdrive gear clockwise, install the ov-
erdrive direct clutch into the one±way clutch.
(b) Hold the overdrive direct clutch and turn the intermediate
shaft. The shafts should turn freely clockwise and should
lock counterclockwise.
(c) Remove the overdrive direct clutch.

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±73
OVERDRIVE CASE DISASSEMBLY
1. REMOVE C0 ACCUMULATOR PISTON FROM OVER-
DRIVE CASE
(a) Using snap ring pliers, remove the snap ring.
(b) Remove the retaining plate and two springs.
(c) Remove the accumulator piston.
(d) Remove the O±ring from the piston.
2. REMOVE OIL SEAL RINGS
Spread the 2 rings apart and remove them.
OVERDRIVE CASE INSPECTION
INSPECT OVERDRIVE CASE BEARING
Check that the bearing turns smoothly with your finger.
AX0G4±02

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±74
OVERDRIVE CASE ASSEMBLY
1. INSTALL OIL SEAL RINGS ON OVERDRIVE CASE
Install the oil seal rings to the O/D case groove, then snug
them down by squeezing their ends together.
HINT: After installing the oil seal rings, check that they
move smoothly.
2. INS TALL C
0 ACCUMULATOR PISTON OF OVER-
DRIVE CLUTCH
(a) Install a new O±ring to the accumulator piston. Coat the
O±ring with ATF.
(b) Install the accumulator piston, 2 springs and plate.
(c) Install the snap ring with snap ring pliers.
OVERDRIVE BRAKE ASSEMBLY
1. INSTALL PISTON INTO DRUM
(a) Install the new O±rings to the piston. Coat the O±rings
with ATF.
(b) Press the piston into the drum, being careful not to dam-
age the O±rings.
2. INSTALL FLANGE, DISCS AND PLATES
(a) Install the flange, facing the flat end upward.
AX0G5±02
AX0G6±02

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±75
(b) Install the discs and plates.
Install in order: P=Plate D=Disc
Flange ± D ± P ± P ± D ± P
HINT: There are 2 different thickness plates, as shown in
the illustration.
(c) Install the cushion plate facing the rounded end upward.
3. INSTALL PISTON RETURN SPRING
4. INSTALL SNAP RING INTO CASE
Be sure the end gap of the snap ring is not aligned with
one of the cutouts.
5. INSTALL OVERDRIVE GEAR ASSEMBLY ONTO
CASE
While turning the overdrive gear clockwise, install the ov-
erdrive gear assembly to the case.
If the overdrive gear assembly is properly installed to the
overdrive case, the clearance between them will be about
24 mm (0.94 in.).

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±76
VALVE BODY
COMPONENTS
VALVE BODY DISASSEMBLY
1. NOTE THE NUMBERS OF ADJUSTING RINGS
HINT: Count the number of adjusting rings before disas-
sembly of the valve body because the throttle pressure is
changed according to the number. (Some of the valve bo-
dies do not have any adjusting rings).
2. REMOVE SOLENOIDS
(a) Remove the No.1 and No.2 solenoids.
(b) Remove the O±rings from the solenoids.
AX0G7±02
AX0G8±02

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±77
3. REMOVE UPPER VALVE BODY COVER
Remove the 9 bolts and upper valve body cover.
4. REMOVE STRAINER GASKETS, PLATE AND SLEEVE
STOPPER FROM UPPER VALVE BODY
(a) Remove the strainer, 2 gaskets and plate.
(b) Remove the sleeve stopper.
5. REMOVE BOLTS FROM UPPER VALVE BODY
Remove the 3 bolts from the upper valve body.
6. REMOVE LOWER VALVE BODY COVER
(a) Remove the 10 bolts.
(b) Remove the lower valve body cover and gasket.

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±78
7. REMOVE BOLTS FROM LOWER VALVE BODY
Remove the 3 bolts from lower valve body.
8. LIFT OFF LOWER VALVE BODY AND PLATE AS
SINGLE UNIT
Hold the plate to the lower valve body and lift off the lower
valve body.
HINT: Be careful that the check balls do not fall out.
9. REMOVE PLATE AND GASKETS
VALVE BODY ASSEMBLY
1. POSITION PLATE AND NEW GASKETS ON LOWER
VALVE BODY
Position the new No.2 gasket, the plate and then the new
No.1 gasket on the lower valve body.
HINT: Since No.1 gasket and No.2 gasket are similar use
the illustration below to discriminate between them.
AX0G9±02

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±79
2. PLACE LOWER VALVE BODY WITH PLATE AND GAS-
KETS ON UPPER VALVE BODY
HINT: Hold the lower valve body, gaskets and plate se-
curely so they do not separate.
Align each bolt hole in the valve bodies with the gaskets
and plate.
3. INSTALL AND FINGER TIGHTEN BOLTS IN LOWER
VALVE BODY TO SECURE UPPER VALVE BODY
Install and finger tighten the 3 bolts.
HINT: Each bolt length (mm, in.) is indicated in the illustra-
tion.
4. INSTALL LOWER VALVE BODY COVER
(a) Install the lower valve body cover over the new gasket.
(b) Install and finger tighten the 10 bolts.
HINT: Each bolt length (mm, in.) is indicated in the illustra-
tion.
5. INSTALL AND FINGER TIGHTEN BOLTS IN UPPER
VALVE BODY
Install and finger tighten the 3 bolts.
HINT: Each bolt length (mm, in.) is indicated in the illustra-
tion.
6. INSTALL SLEEVE STOPPER

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±80
7. INSTALL UPPER VALVE BODY COVER GASKETS,
PLATE AND THROTTLE MODULATOR OIL STRAINER
(a) Position a new gasket and plate and then another new
gasket.
HINT: The gaskets are not identical, but can be installed
in any order.
(b) Install the oil strainer onto the gasket.
8. INSTALL UPPER VALVE BODY COVER
(a) Position the upper valve body cover.
(b) Install and finger tighten the 9 bolts.
HINT: Each bolt length (mm, in.) is indicated in the illustra-
tion.
9. INSTALL SOLENOIDS
(a) Install the new O±rings on the solenoids.
(b) Install the No.1 and No.2 solenoids.
(c) Install and finger tighten the 3 bolts.
HINT: Each bolt length (mm, in.) is indicated in the illustra-
tion.
10. TIGHTEN BOLTS OF UPPER AND LOWER VALVE BO-
DIES
(a) Tighten the 16 bolts in the lower valve body.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(b) Tighten the 12 bolts in the upper valve body.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)