TOYOTA SUPRA 1995 Service Repair Manual

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONSECOND COAST BRAKE -
AT-33
(c) Remove the compression spring, retainer and piston rod.
SECOND COAST BRAKE BAND
INSPECTION
INSPECT BRAKE BAND
If the lining of the brake band is peeling off or discolored,
or even if parts of the printed numbers are defaced, re-
place the brake band.
HINT: Before assembling the new band, soak it in ATF for
at least 15 minutes.
SECOND COAST BRAKE PISTON
ASSEMBLY
1. SELECT PISTON ROD
If the band is OK with piston rod stroke not within the stan-
dard value, select a new piston rod.
HINT: There are 5 different piston rod lengths.
Piston rod length:
70.7 mm (2.783 in.)
71.4 mm (2.811 in.)
72.2 mm (2.843 in.)
72.9 mm (2.870 in.)
73.7 mm (2.902 in.)
2. ASSEMBLE SECOND COAST BRAKE PISTON
(a) Install the retainer, compression spring and piston to the
piston rod.
(b) Firmly hold down the piston, then compress the compres-
sion spring.
(c) Install the E-ring.
AT0DL-04
AT0DM-04

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONSECOND COAST BRAKE -
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3. INSTALL SECOND COAST BRAKE PISTON OIL SEAL
RING
(a) Coat the oil seal ring with ATF.
(b) Install the oil seal ring to the piston groove, then snug it
down by squeezing its ends together.
NOTICE: Do not spread the ring ends more than necessary.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-35
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 turns freely clockwise and locks
counterclockwise.
2. REMOVE OVERDRIVE DIRECT CLUTCH ASSEMBLY
FROM OVERDRIVE PLANETARY GEAR
AT0DN-02
AT0DP-04

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
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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 or 57-114 psi).
SST 09350-30020 (09350-06120)
Piston stroke:
1.45-1.70 mm (0.057-0.067 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, 2 plates and 2 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 SST, remove the snap ring.
SST 09350-30020 (09350-07070)

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-37
(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, apply compressed air
to the oil pump to remove the O/D direct clutch piston.
(c) Remove the O/D direct clutch piston.
HINT: If the piston is at an angle and cannot be removed,
press down on the side jutting out and again apply com-
pressed air, or else wind vinyl tape around the piston end
and remove it with needle nose pliers.
(d) Remove the 2 O-rings from the piston.
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, one-way clutch and thrust
washer.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
AT-38
9. REMOVE ONE-WAY CLUTCH FROM OUTER RACE
OVERDRIVE PLANETARY GEAR AND
OVERDRIVE DIRECT CLUTCH INSPECTION
1. INSPECT DISC AND FLANGE
Check to see if the sliding surface of the disc, plate and
flange are worn or burnt. If necessary, replace them.
HINT:

If the lining of the disc is peeling off or discolored, or
even if a part of the printed numbers are defaced, re-
place all discs.

Before assembling new discs, soak them in ATF for
at least 15 minutes.
2. CHECK OVERDRIVE DIRECT CLUTCH PISTON
(a) Check that the check ball is free by shaking the piston.
(b) Check that the valve does not leak by applying low-pres-
sure compressed air.
3. CHECK OVERDRIVE DIRECT CLUTCH RETURN
SPRING
Check the spring free length together with the spring seat.
Standard free length:
15.8 mm (0.622 in.)
4. CHECK OVERDRIVE DIRECT CLUTCH DRUM BUSH-
INGS
Using a dial indicator, measure the inside diameter of the
clutch drum bushings.
Maximum inside diameter:
27.11 mm (1.0673 in.)
If the inside diameter is greater than the maximum, re-
place the clutch drum.
AT0DQ-04

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
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5. CHECK OVERDRIVE PLANETARY GEAR BUSHINGS
Using a dial indicator, measure the inside diameter of the
planetary gear bushing.
Maximum inside diameter:
11.27 mm (0.4437 in.)
If the inside diameter is greater than the maximum, re-
place the planetary gear.
6. MEASURE PLANETARY PINION GEAR THRUST
CLEARANCE
Using a feeler gauge, measure the planetary pinion gear
thrust clearance.
Standard clearance:
0.2-0.6 mm (0.008-0.024 in.)
Maximum clearance:
1.0 mm (0.039 in.)
If the clearance is greater than the maximum, replace the
planetary gear assembly.
OVERDRIVE PLANETARY GEAR,
OVERDRIVE DIRECT CLUTCH AND
OVERDRIVE ONE-WAY CLUTCH ASSEMBLY
1. INSTALL OVERDRIVE ONE-WAY CLUTCH
(a) Install the thrust washer to the overdrive planetary gear,
the grooved side facing upward.
(b) Install the one-way clutch into the outer race the flanged
side of the one-way clutch facing upward.
(c) Install the overdrive one-way clutch with the outer race to
the overdrive planetary gear.
AT0DR-05

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
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(d) Install the retaining plate.
(e) Using a screwdriver, install the snap ring.
2. INSTALL RING GEAR FLANGE TO OVERDRIVE
PLANETARY RING GEAR
(a) Install the ring gear flange.
(b) Using a screwdriver, install the snap ring.
3. INSTALL OVERDRIVE DIRECT CLUTCH PISTON
(a) Coat new O-rings with ATF and install them on the O/D
direct clutch piston.
(b) Being careful not to damage the O-rings, press the direct
clutch piston into the clutch drum with both hands.
4. INSTALL PISTON RETURN SPRING
(a) Install the piston return spring to the piston.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
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(b) Place SST on the spring retainer, and compress the re-
turn spring with a shop press.
SST 09350-30020 (09350-07040)
(c) Install the snap ring with SST. Be sure the end gap of the
snap ring is not aligned with the spring retainer claw.
SST 09350-30020 (09350-07070)
5. INSTALL PLATES, DISCS AND FLANGE
(a) Install the plates and discs.
Install in order: P = Plate D = Disc
P-D-P-D
(b) Install the flange, the flat end facing downward.
(c) Using a screwdriver, install the snap ring.
6. CHECK PISTON STROKE OF OVERDRIVE DIRECT
CLUTCH
(a) Place the oil pump onto the torque converter clutch, then
place the O/D direct clutch assembly onto the oil pump.
(b) Using SST and a dial indicator, measure the overdrive di-
rect clutch piston stroke while applying and releasing
compressed air (392-785 kPa, 4-8 kgf/cm
2 or 57-114
psi).
SST 09350-30020 (09350-06120)
Piston stroke:
1.45-1.70 mm (0.057-0.067 in.)
If the piston stroke is less than the limit, parts may have
been assembled incorrectly, so check and reassemble

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONOVERDRIVE DIRECT CLUTCH -
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again.
If the piston stroke is nonstandard, select another flange.
HINT: There are 6 different flange thicknesses.
Flange Thickness
mm (in.)
No.ThicknessNo.Thickness
163.6 (0.142)193.3 (0.130)
173.5 (0.138)203.2 (0.126)
183.4 (0.134)213.1 (0.122)
7. INSTALL OVERDRIVE DIRECT CLUTCH ASSEMBLY
(a) Align the flukes of the discs in the direct clutch.
(b) Install the direct clutch assembly onto the O/D planetary
gear.
8. CHECK OPERATION OF ONE-WAY CLUTCH
Hold the O/D direct clutch drum and turn the input shaft.
Check that the input shaft turns freely clockwise and locks
counterclockwise.