TOYOTA SUPRA 1995 Service Repair Manual

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONLOWER VALVE BODY - A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONLOWER VALVE BODY -
AT-83
VALVE BODY SPRINGS SPECIFICATIONS
HINT: During reassembly please refer to the spring specifications below to help you to differentiate the
different springs.
MarkName (Color)Free length / Outer diameter
mm (in.)Total No. of coils
(A)Primary regulator valve (Blue)45.62 (1.7961) / 16.88 (0.6446)9.5
(B)Lock-up control valve (White)18.52 (0.7291) / 5.30 (0.209)12.75
(C)Cut back valve (None)18.80 (0.740) / 7.48 (0.2995)7.50
(D)Solenoid relay valve (None)18.80 (0.740) / 7.48 (0.2995)7.50
(E)Solenoid modulator valve (Yellow)32.13 (1.2650) / 8.00 (0.3150)15.75
(F)Cut off valve (None)20.30 (0.719) / 6.10 (0.240)12.75
(G)Accumulator control valve (White)31.17 (1.2272 / 8.85 (0.3484)12.50
(H)1-2 Shift valve (Purple)30.77 (1.2114) / 9.70 (0.382)10.50
(I)Coast modulator valve (Green)21.83 (0.8594) / 8.00 (0.3150)10.5
(J)
*Coast modulator valve (Blue)
(Light Blue)
(White)26.09 (1.0272) / 8.19 (0.3224)
26.60 (1.0472) / 8.19 (0.3224)
27.11 (1.0673) / 8.19 (0.3224)12.0
12.0
12.0
* One of the 3 types of spring is installed.
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RETAINERS LOCATION
MarkRetainerHeight / Width / Thickness
mm (in.)
(A)1-2 Shift valve14.0 (0.551) / 5.0 (0.197) / 3.2 (0.126)
(B)Coast modulator valve14.0 (0.551) / 5.0 (0.197) / 3.2 (0.126)
(C)Coast modulator valve14.0 (0.551) / 5.0 (0.197) / 3.2 (0.126)
(D)Primary regulator valve13.0 (0.521) / 5.0 (0.197) / 3.2 (0.126)
(E)Lock-up control valve14.5 (0.570) / 5.0 (0.197) / 3.2 (0.126)
(F)Cut back valve8.5 (0.335) / 5.0 (0.197) / 3.2 (0.126)
(G)Solenoid relay valve12.5 (0.492) / 5.0 (0.197) / 3.2 (0.126)
(H)Solenoid modulator valve14.5 (0.570) / 5.0 (0.197) / 3.2 (0.126)
(I)Cut off valve19.0 (0.748) / 5.0 (0.197) / 3.2 (0.126)
(J)Accumulator control valve29.0 (1.142) / 5.0 (0.197) / 3.2 (0.126)
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A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONLOWER VALVE BODY -
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VALVE BODY ASSEMBLY
1. INSTALL ASSEMBLED GASKETS ON UPPER VALVE
BODY
Align the assembled gaskets with each bolt hole and
install the screw.
2. PLACE UPPER VALVE BODY WITH GASKETS ON
TOP OF LOWER VALVE BODY
Align each bolt hole and gaskets in the valve body.
3. INSTALL 28 BOLTS TO UPPER VALVE BODY
HINT: Each bolt length (mm, in.) is indicated below.
Torque: 6.5 N´m (65 kgf´cm, 56 in.´lbf)
Bolt length:
Bolt A: 45 mm (1.772 in.)
Bolt B: 35 mm (1.378 in.)
Bolt C: 20 mm (0.787 in.)
4. INSTALL NO.5 SOLENOID VALVE
5. TURN OVER ASSEMBLY INSTALL OIL STRAINER
AND PRESSURE RELIEF VALVE
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A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONLOWER VALVE BODY -
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6. INSTALL NO.1, NO.2, NO.3, NO.4, SOLENOID VALVES
7. INSTALL MANUAL VALVE
8. INSTALL DETENT SPRING
Torque: 10 N´m (100 kgf´cm, 7 ft´lbf)
9. MAKE SURE MANUAL VALVE MOVES SMOOTHLY

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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COMPONENT PARTS INSTALLATION
Disassembly, inspection and assembly of each component group have been indicated in the preceding
chapter. Before installation, make sure again that all component groups are assembled correctly.
If a problem is found in a certain component group during assembly, inspect and repair this group im-
mediately.
Recommended ATF:
Type T-II or equivalent
GENERAL NOTES:
1. The automatic transmission is composed of highly precision-finished parts, necessitating careful in-
spection before assembly because even a small nick could cause fluid leakage or affect performance.
2. Before assembling new clutch discs, soak them in automatic transmission fluid for at least 15 minutes.
3. Apply automatic transmission fluid on sliding or rotating surfaces of parts before assembly.
4. Use petroleum jelly to keep small parts in their place.
5. Do not use adhesive cements on gaskets and similar parts.
6. When assembling the transmission, be sure to use new gaskets and O-rings.
7. Dry all parts with compressed air-never use shop rags.
8. When working with FIPG material, you must observe the following.

Using a razor blade and gasket scraper, remove all the old packing (FIPG) material from the gasket
surfaces.

Thoroughly clean all components to remove all the loose material.

Clean both sealing surface with a non-residue solvent.

Parts must be assembled within 10 minutes of application. Otherwise, the packing (FIPG) material
must be removed and reapplied.
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A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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BEARINGS AND RACES INSTALLATION POSITION AND DIRECTION
Mar
kFront Race Diameter
Inside / Outside mm (in.)Thrust Bearing Diameter
Inside / Outside mm (in.)Rear Race Diameter
Inside / Outside mm (in.)
A28.1 (1.106) / 47.5 (1.870)28.8 (1.134) / 50.4 (1.984)-
B27.2 (1.070) / 42.0 (1.654)25.9 (1.020) / 47.0 (1.850)24.0 (0.945) / 48.0 (1.890)
C37.1 (1.461) / 59.0 (2.323)33.6 (1.323) / 50.3 (1.980)-
D37.0 (1.457) / 51.0 (2.008)33.5 (1.319) / 47.8 (1.882)-
E26.0 (1.024) / 48.9 (1.925)25.9 (1.020) / 47.0 (1.850)26.5 (1.043) / 47.0 (1.850)
F-35.0 (1.378) / 53.8 (2.118)34.0 (1.339) / 48.0 (1.890)
G33.5 (1.319) / 47.8 (1.882)35.4 (1.394) / 48.0 (1.890)-
H-27.6 (1.087) / 54.5 (2.146)-
H'28.8 (1.134) / 44.8 (1.764)30.1 (1.185) / 44.7 (1.760)28.7 (1.094) / 44.8 (1.764)
I-39.0 (1.535) / 57.7 (2.272)-

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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BASIC SUBASSSEMBLY REASSEMBLY
1. INSTALL TRANSMISSION CASE
Install the transmission case in the overhaul attachment.
2. INSTALL BEARING AND RACE
(a) Coat the assembled bearing and race with petroleum jel-
ly.
(b) Install it onto the case.
Assembled bearing and race diameter
mm (in.)
InsideOutside
Assembled bearing
and race39.0 (1.535)57.7 (2.272)
3. INSTALL LEAF SPRING
4. INSTALL REAR PLANETARY GEAR UNIT WITH FIRST
AND REVERSE BRAKE AND OUTPUT SHAFT
(a) Install the flange, the rounded edge facing upward.
(b) Install the 7 plates and 7 discs.
Install in order: P=Plate D=Disc
D-P-D-P-D-P-D-P-D-P-D-P-D-P
(c) Align the teeth of the flange, discs and plates.
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A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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(d) Face the snap ring upward (front side) and install the se-
cond brake drum to the planetary gear.
NOTICE: Face the oil hole in the drum towards the lower
side of the transmission case (the side the valve body is
installed).
(e) Align the splines of the transmission case and the as-
sembled rear planetary gear, first and reverse brake pack
and output shaft, indicated by A.
(f) Install the assembled rear planetary gear, first and re-
verse brake pack and output shaft.
(g) Rest the output shaft on wooden blocks.
(h) Using SST, install the snap ring.
SST 09350-30020 (09350-07060)

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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5. CHECK PACK CLEARANCE OF FIRST AND REVERSE
BRAKE
Using a feeler gauge, measure the clearance between
the plate and second brake drum.
Clearance:
0.70-1.00 mm (0.028-0.039 in.)
If the values are non-standard, select another flange.
HINT: There are 8 different flange thickness.
Flange Thickness
mm (in.)
No.ThicknessNo.Thickness
685.4 (0.213)524.6 (0.181)
675.2 (0.205)534.4 (0.173)
505.0 (0.197)544.2 (0.165)
514.8 (0.189)554.0 (0.157)
6. INSTALL SECOND BRAKE PISTON SLEEVE
7. INSTALL NEW BRAKE DRUM GASKET
(a) Coat the gasket with ATF.
(b) Install a new brake drum gasket.
8. INSTALL NO.1 ONE-WAY CLUTCH
(a) Install the No.1 thrust washer onto the second brake.
(b) Install the No.1 one-way clutch.

A340E (2JZ-GTE) AUTOMATIC TRANSMISSIONCOMPONENT PARTS INSTALLATION -
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9. INSTALL FLANGE, PLATES AND DISCS OF SECOND
BRAKE
(a) Install the 1.8 mm (0.071 in.) thick plate with the rounded-
edge side of the plate facing the disc.
(b) Install the 5 plates and 5 discs.
Install in order: P=Plate D=Disc
D-P-D-P-D-P-D-P-D-P
(c) Install the flange with the rounded edge of the flange fac-
ing the disc.
(d) Using a screwdriver, install the snap ring.
10. CHECK PACK CLEARANCE OF SECOND BRAKE
Using a feeler gauge, measure the clearance between
the snap ring and flange.
Clearance:
0.49-1.1 1 mm (0.0193-0.0437 in.)
If the values are non-standard, check for improper instal-
lation.
11. INSTALL PLANETARY SUN GEAR
While turning the planetary sun gear clockwise, install it
into No.1 one-way clutch.
HINT: Confirm the thrust washer is installed correctly.
12. INSTALL FRONT PLANETARY GEAR
(a) Coat the bearing and race with petroleum jelly and install
them onto the front planetary gear.
Bearing and race diameter
mm (in.)
InsideOutside
Bearing35.4 (1.394)48.0 (1.890)
Race33.5 (1.319)47.8 (1.882)