TOYOTA CAMRY V20 1986 Service Information

AT7718
Printed
Numbers
AT3632r Non-reusable part Snap RingSee page AT-133Piston Return Springr O-Ring
Piston Snap Ring FlangeDiscPlateA540E
First and Reverse Brake
COMPONENTS
INSPECTION OF FIRST AND REVERSE BRAKE
COMPONENTS
INSPECT DISCS, PLATES AND FLANGES
Check if the sliding surfaces of the discs, plates and
flanges are worn or burnt. If necessary, replace them.
HINT:

If the lining of the disc is exfoliated or discolored,
or even a part of the printed numbers are de-
faced, replace all discs.

Before assembling new discs, soak them in ATF
for at least fifteen minutes.
AT-66- AUTOMATIC TRANSAXLEComponent Parts (First and Reverse Brake)

AT5051r Non-reusable partO/D Planetary Gear Oil Seal RingNo. 3 Thrust Washer Intermediate ShaftOne-W ay Clutch Outer RaceRetainerRetaining Plate Rear Bearing Intermediate Shaft Bearing Snap RingOuter Race Adjust NutCounter Driven GearOuter RaceO/D One-Way Clutch PlugO/D Planetary
Ring Gear Locking WasherFront BearingSnap Ring Flange
Snap Ring Plater O-Ring
Snap RingPiston Return
SpringBearingBearingRace Snap RingDiscC
0 PistonO/D Case Snap Ringr O-Ring PlateC
0 Drum DiscOil Seal Ring Piston Return Spring O/D Brake DrumFlange
r O-Ring O/D Brake Piston
C
0 Accumulator Piston
Spring
Retaining Plate
Snap Ring Cushion Plate
Overdrive Unit
COMPONENTS
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-67

AT3063
AT2523
AT7719
AT7720
Printed
Numbers
AT2745
DISASSEMBLY OF OVERDRIVE BRAKE
1. REMOVE PISTON RETURN SPRING
(a) While pushing the return spring, remove the snap
ring with a screwdriver.
(b) Remove the piston return spring.
2. REMOVE PLATES, DISCS AND FLANGE
3. REMOVE PISTON FROM DRUM
Apply compressed air to oil hole to remove the piston.
HINT: Blow with the gun slightly away from the oil hole,
and be careful that the piston dose not tilt.
4. REMOVE O-RINGS
Remove the inner and outer O-rings from the piston.
INSPECTION OF OVERDRIVE BRAKE
INSPECT DISCS, PLATES AND FLANGE
Check if the sliding surfaces of the discs, plates and
flange are worn or burnt. If necessary, replace them.
HINT:

If the lining of the disc is exfoliated or discolored,
or even a part of the printed numbers are defaced,
replace all discs.

Before assembling new discs, soak them in ATF
for at least fifteen minutes.
AT-68- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)

AT7721
AT7722
AT7723
AT7724 AT3634
SST
DISASSEMBLY OF OVERDRIVE DIRECT
CLUTCH
1. CHECK PISTON STROKE OF DIRECT CLUTCH
Using a dial indicator, measure the piston stroke while
applying and releasing the compressed air (4 - 8 kg/
cm
2, 57 - 114 psi or 392 - 785 kPa) as shown.
Piston stroke: 1.75 - 2.49 mm
(0.0689 - 0.0980 in.)
SST 09350-32014 (09351-32190)
If the piston stroke is greater than the maximum, inspect
each component.
2. REMOVE OVERDRIVE DIRECT CLUTCH FROM CASE
3. REMOVE BEARING AND RACE FROM CLUTCH
DRUM AND CASE
4. REMOVE SNAP RING WITH SCREWDRIVER
5. REMOVE FLANGES, DISCS AND PLATES
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-69

AT3636
AT3637
AT3638
AT3639 AT3640AT3635
SST
6. REMOVE PISTON RETURN SPRING
(a) Place SST on the spring retainer and compress
the spring with a shop press.
SST 09350-32014 (09351-32070, 09351-32200)
(b) Remove the snap ring.
(c) Remove the piston return spring.
7. REMOVE PISTON FROM CLUTCH DRUM
(a) Install the clutch drum on the case.
(b) Apply compressed air to the pressure apply hole
of the case.
(c) Remove the piston from the clutch drum.
If the piston does not come out completely, use
needle-nose pliers to remove it.
(d) Remove the clutch drum from the case.
8. REMOVE O-RINGS
Remove the two O-rings from the piston.
INSPECTION OF OVERDRIVE DIRECT CLUTCH
1. INSPECT OVERDRIVE DIRECT CLUTCH
(a) Check that the check ball is free by shaking the
piston.
(b) Check that the valve does not leak by applying
low-pressure compressed air.
AT-70- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)

AT3641
AT3642
AT7725
AT3636D6108
Printed
Numbers
2. INSPECT DISCS, PLATES AND FLANGES
Check if the sliding surfaces of the discs, plates and
flanges are worn or burnt. If necessary, replace them.
HINT:

If the lining of the disc is exfoliated or discolored,
or even a part of the printed numbers are de-
faced, replace all discs.

Before assembling new discs, soak them in ATF
for at least fifteen minutes.
3. CHECK DIRECT CLUTCH BUSHING
Using a dial indicator, measure the inside diameter of the
two direct clutch bushings.
Maximum inside diameter: 22.13 mm (0.8713 in.)
If the inside diameter is greater than the maximum, re-
place the direct clutch drum.
ASSEMBLY OF OVERDRIVE DIRECT CLUTCH
1. INSTALL CLUTCH PISTON
(a) Install new O-rings to the piston. Coat the O-rings
with ATF.
(b) Press the piston into the drum with the cup side up,
being careful not to damage the O-ring.
2. INSTALL PISTON RETURN SPRING
(a) Install the return spring and set snap ring in place.
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-71

AT3643
PlateDisc Flange
AT7727
AT2748
AT2749 AT7726
SST
(b) Place SST on the spring retainer, and compress
the spring with a shop press.
SST 09350-32014 (09351-32070, 09351-32200)
(c) Install the snap ring with a screwdriver. Be sure
end gap of snap ring is aligned with the groove of
the clutch drum.
3. INSTALL PLATES, DISCS AND FLANGE
Install in order: P = Plate D = Disc
P-D-P-D-Flange
4. INSTALL SNAP RING
Be sure end gap of the snap ring is not aligned with the
groove of the clutch drum.
5. INSTALL BEARING AND RACE
(a) Coat the bearing with petroleum jelly and install it
facing the race side downward to the clutch drum.
Bearing: outer diameter 46.3 mm (1.823 in.)
Inner diameter 26.2 mm (1.031 in.)
(b) Coat the race with petroleum jelly and install it to
the case.
Race: Outer diameter 43.0 mm (1.693 in.)
Inner diameter 24.5 mm (0.965 in.)
AT-72- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)

AT3634
SST
AT3645
HoldLockFreeTurn
AT3646
AT3751AT7721
6. INSTALL DIRECT CLUTCH ON CASE
7. RECHECK PISTON STROKE OF DIRECT CLUTCH
Using a dial indicator, measure the piston stroke while
applying and releasing the compressed air (4 - 8 kg/
cm
2, 57 - 114 psi or 392 - 785 kPa) as shown.
Piston stroke: 1.75 - 2.49 mm
(0.0689 - 0.0980 in.)
SST 09350-32014 (09351-32190)
DISASSEMBLY OF COUNTER DRIVE GEAR
1. CHECK OPERATION OF ONE-WAY CLUTCH
(a) Install the overdrive direct clutch into the one-way
clutch.
(b) Hold the overdrive direct clutch and turn the inter-
mediate shaft. The shaft should turn freely clock-
wise and should lock counterclockwise.
(c) Remove the overdrive direct clutch.
2. CHECK COUNTER DRIVE GEAR PRELOAD
(a) Hold the overdrive planetary gear in a vise with
soft jaws.
HINT: Do not let the counter drive gear touch the vise.
(b) Using a tension gauge, measure the preload.
Preload (at starting): 940 - 1,560 g
(2.1 - 3.4 lb, 9.2 - 15.3 N)
HINT: Turn the counter drive gear right and left several
times before measuring the preload.
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-73

AT3648
O/D One-Way Clutch
with Outer RaceRetaining
Plate
AT3649
AT0426
AT5053 AT3647
3. REMOVE O/D ONE-WAY CLUTCH AND OUTER RACE
(a) Remove the snap ring.
(b) Remove the retaining plate.
(c) Remove the O/D one-way clutch with outer race.
(d) Remove the two retainers from both sides of the
O/D one-way clutch.
(e) Remove the O/D one-way clutch from the outer
race.
HINT: Note the direction of the one-way clutch.
4. REMOVE NO. 3 PLANETARY THRUST WASHER
5. REMOVE PLUGS FROM PLANETARY GEAR
Remove the four plugs with a magnetic finger.
HINT: Be careful not to lose them.
AT-74- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)

AT3651
SST
AT3652
SST
AT3653
AT0431
SST
AT3650
6. REMOVE ADJUSTING NUT AND LOCKING WASHER
(a) Pry off the locking washer.
(b) Using SST, loosen the adjusting nut.
SST 09350-32014 (09351-32080)
(c) Remove the adjusting nut and locking washer.
7. REMOVE INTERMEDIATE SHAFT BEARING
Using SST, press out the bearing from the shaft.
SST 09950-00020
8. REMOVE COUNTER DRIVE GEAR AND FRONT
BEARING
Press out the gear and bearing together.
9. REMOVE REAR BEARING
(a) Using SST, press out the bearing.
SST 09950-00020
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-75