TOYOTA CAMRY 1999 Service Repair Manual

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±72
HINT: Turn the counter drive gear right and left several
times before measuring the preload.
(c) Lock the adjusting nut with one locking washer tab. Bend
the locking washer tab until it is flat with the adjusting nut
groove.
9. INSTALL NO.3 OVERDRIVE PLANETARY THRUST
WASHER
10. INSTALL PINION SHAFT PLUGS
Install the 4 plugs into the pinion shaft.
11. INSTALL OVERDRIVE ONE±WAY CLUTCH AND RE-
TAINING PLATE
(a) Install the one±way clutch into the outer race.
(b) Install the 2 retainers on both sides of the one±way clutch.
(c) Install the one±way clutch into the overdrive planetary
gear.
HINT: Be sure that the one±way clutch is installed in the
correct direction.
(d) Install the retaining plate.

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±73
(e) Install the snap ring.
12. CHECK OPERATION OF O/D ONE±WAY CLUTCH
(a) Install the overdrive direct clutch into the one±way clutch.
(b) Hold the overdrive direct clutch and turn the intermediate
shaft. The shaft should turn freely clockwise and should
lock counterclockwise.
(c) Remove the overdrive direct clutch.
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 2 springs.
(c) Remove the accumulator piston.
(d) Remove the O±ring from the piston.
AX041±02

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±74
2. REMOVE OIL SEAL RINGS
OVERDRIVE CASE ASSEMBLY
1. INSTALL OIL SEAL RINGS ON OVERDRIVE CASE
Install the 2 oil seal rings to the overdrive case groove,
then snug them down by squeezing their ends together.
HINT: After installing the oil seal rings, check that they
move smoothly.
2. INSTALL C0 ACCUMULATOR PISTON TO OVER-
DRIVE CASE
(a) Install a new O±ring to the accumulator piston.
(b) Coat the O±ring with ATF.
(c) Install the accumulator piston, 2 springs and retaining
plate.
(d) Using snap ring pliers, install the snap ring.
AX042±02

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±75
OVERDRIVE BRAKE ASSEMBLY
1. INSTALL PISTON INTO DRUM
(a) Install new O±rings to the piston.
Coat the new 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
Install the flange, discs and plates.
Install in order:
P=Plate D=Disc
Flange±D±P±D±P±D±P
3. POSITION PISTON RETURN SPRING
AX043±05

AUTOMATIC TRANSAXLEOVERDRIVE UNIT ±
AX±76
4. INSTALL SNAP RING INTO CASE
Be sure the end gap of the snap ring is not aligned with
one of cutouts.
5. INSTALL OVERDRIVE PLANETARY GEAR ONTO OV-
ERDRIVE DIRECT CLUTCH
While turning the overdrive planetary gear clockwise,
install it onto the overdrive direct clutch.
HINT: If the overdrive planetary gear is properly installed
onto the direct clutch, the counter drive gear height from
the overdrive case will be about 24 mm (0.94 in.).

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±77
VALVE BODY
COMPONENTS
VALVE BODY DISASSEMBLY
NOTICE: When disassembling the valve body, be careful
not to damage or deform the plate which overhangs the
valve body.
1. REMOVE SOLENOIDS
(a) Remove No.1 and No.2 solenoids with the retainer.
NOTICE: When removing the solenoid, do not use a screw-
driver, etc. to pry up the solenoid.
(b) Remove the O±ring from each solenoid.
(c) Remove the No.3 solenoid.
(d) Remove the O±ring from the solenoid.
AX044±02
AX0TW±01

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±78
2. REMOVE LOCK PLATE
3. REMOVE B
0 ACCUMULATOR ASSEMBLY
(a) Remove the 3 bolts.
(b) Remove the B
0 accumulator assembly.
4. DISASSEMBLE B
0 ACCUMULATOR ASSEMBLY
(a) Applying compressed air to the cylinder hole, remove the
piston and spring.
(b) Remove the 2 O±rings from the piston.
5. REMOVE NO.4 SOLENOID
(a) Remove the No.4 solenoid.
(b) Remove the O±ring from the solenoid.
6. REMOVE NO.1 LOWER VALVE BODY COVER
Remove the 5 bolts and No.1 lower valve body cover.

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±79
7. REMOVE OIL STRAINER, NO.1 LOWER VALVE BODY
COVER GASKETS AND CHECK VALVE
(a) Remove the 2 gaskets and plate from the lower valve
body.
(b) Remove the oil strainer, check valve and spring.
8. REMOVE PRESSURE RELIEF VALVE
9. REMOVE NO.2 LOWER VALVE BODY COVER, OIL
STRAINER, CHECK BALLS AND VIBRATING STOP-
PER
Remove the 11 bolts and lower valve body cover.
(b) Remove the 2 check balls, oil strainer and vibrating stop-
per.

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±80
10. REMOVE NO.2 LOWER VALVE BODY COVER GAS-
KETS AND CHECK BALLS
(a) Remove the 2 screws from the lower valve body cover.
(b) Remove the 2 gaskets and plate.
(c) Remove the 3 check balls from the cover.
11. REMOVE BOLTS FROM UPPER VALVE BODY
Remove the 3 bolts.
12. LIFT OFF UPPER VALVE BODY AND NO.1 PLATE AS
A SINGLE UNIT
Hold No.1 plate to the upper valve body and lift off the up-
per valve body.
HINT: Be careful that the check balls and oil strainer do
not fall out.

AUTOMATIC TRANSAXLEVALVE BODY ±
AX±81
13. REMOVE 2 CHECK BALLS AND VIBRATING STOP-
PER FROM UPPER VALVE BODY
14. REMOVE 2 OIL STRAINERS AND CHECK BALL FROM
LOWER VALVE BODY
VALVE BODY ASSEMBLY
1. INSTALL 2 CHECK BALLS AND VIBRATING STOP-
PER TO UPPER VALVE BODY
2. INSTALL 2 OIL STRAINERS AND CHECK BALL TO
LOWER VALVE BODY
3. POSITION PLATE AND NEW GASKETS ON UPPER
VALVE BODY
Position new No.1 gasket, plate and the new No.2 gasket
on the upper valve body.
HINT: Since No.1 gasket and No.2 gasket are similar, use
the illustration below to discriminate between them.
AX0TX±01