TOYOTA SUPRA 1986 Service Repair Manual

13. INSTALL PS PUMP
(a) Install the pump bracket with the 2 bolts.
Torque:
A 58 NVm (590 kgfVcm, 43 ftVlbf)
B 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Install the pump rear stay with the 2 bolts.
Torque: 39 NVm (400 kgfVcm, 29 ftVlbf)
(c) Install the pump housing to the pump bracket.
(d) Connect the following hoses:
wAir hose to No.4 timing belt cover
wAir hose to air intake chamber
(e) Install the front pump bracket with the 2 bolts (A).
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
(f) Install the plate washer and bolt (B) to the oil pump.
Torque: 52 NVm (530 kgfVcm, 38 ftVlbf)
14. INSTALL ENGINE WIRE BRACKET
15. CONNECT FUEL HOSES
(a) Connect the fuel return hose to the fuel return pipe.
(b) Install the fuel return hose to the clamp of the oil dipstick
guide.
(c) Install the fuel inlet hose with 2 new gaskets and the union
bolt.
Torque: 29 NVm (300 kgfVcm, 22 ftVlbf)
16. CONNECT WIRES AND CONNECTORS
17. CONNECT EVAP HOSE
18. CONNECT BRAKE BOOSTER VACUUM HOSE
19. CONNECT HEATER HOSES
20. INSTALL CHARCOAL CANISTER
21. INSTALL WATER PUMP PULLEY, FAN, FLUID COUPLING
ASSEMBLY AND DRIVE BELT
(See step 10 in water pump installation in Cooling Sys-
tem)
22. INSTALL AIR CLEANER, VAF METER AND INTAKE AIR
CONNECTOR PIPE ASSEMBLY
23. CONNECT CONTROL CABLES TO THROTTLE BODY
24. FILL WITH FUEL
25. FILL WITH ENGINE OIL
26. CHECK IGNITION TIMING
(See ignition timing inspection and adjustment)
27. INSTALL RADIATOR ASSEMBLY
(See radiator installation in Cooling System)
28. START ENGINE AND CHECK FOR LEAKS
29. INSTALL HOOD
30. ROAD TEST VEHICLE
Check for abnormal noise, shock slippage, correct shift
points and smooth operation.
31. RECHECK ENGINE COOLANT AND ENGINE OIL LEVELS EG±128
± ENGINEENGINE MECHANICAL

ENGINE INSTALLATION (2JZ±GTE)
1. INSTALL ENGINE AND TRANSMISSION ASSEMBLY IN
VEHICLE
(a) Attach the engine hoist chain to the engine hangers.
(b) Lower the engine and transmission assembly into the engine
compartment.
NOTICE: Install the engine and transmission assembly care-
fully without damaging the shift lever retainer (M/T), A/C com-
pressor and PS solenoid valve.
(c) Insert the stud bolts of the front engine mounting insulators
into the stud bolt holes of the front suspension crossmember.
(d) Temporarily install the 2 nuts holding the engine front
mounting insulators to the front suspension crossmember.
(e) Keep the engine level with a jack.
(f) Remove the hoist chain.
(g) Temporarily install the support member to the engine rear
mounting insulator with the 4 nuts.
(h) Install the 4 bolts holding the support member to the body.
Torque: 25 NVm (260 kgfVcm, 19 ftVlbf)
(i) Tighten the 4 nuts holding the support member to the engine
rear mounting insulator.
Torque: 13 NVm (135 kgfVcm, 10 ftVlbf)
(j) Tig h t e n th e 2 nu t s ho ld in g th e en g in e fro n t mounting
insulators to the front suspension crossmember.
Torque: 59 NVm (600 kgfVcm, 43 ftVlbf)
2. M/T:
INSTALL TRANSMISSION SHIFT LEVER
Torque: 19 NVm (195 kgfVcm, 14 ftVlbf)
3. A/T:
CONNECT TRANSMISSION CONTROL ROD
(a) Shift the shift lever to N position.
(b) Fully turn the control shaft lever back and return 2 notches.
It is now in neutral position.
(c) Connect the control rod to the shift lever with the nut.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
4. INSTALL PROPELLER SHAFT
(See propeller shaft installation in Propeller Shaft)
± ENGINEENGINE MECHANICALEG±129

5. INSTALL REAR CENTER FLOOR CROSSMEMBER
BRACE
Torque: 28 NVm (290 kgfVcm, 21 ftVlbf)
6. INSTALL EXHAUST PIPE HEAT INSULATOR
7. INSTALL NO.2 FRONT EXHAUST PIPE
Install a new gasket and the front exhaust pipe with 3 new
nuts.
Torque: 62 NVm (630 kgfVcm, 46 ftVlbf)
8. INSTALL EXHAUST PIPE ASSEMBLY
(a) Install the hook of the tailpipe to the 2 rings on the tailpipe
bracket.
(b) Install the hook of the exhaust pipe to the 2 rings on the
exhaust pipe brackets.
(c) Install the pipe support bracket with the 2 bolts.
Torque: 43 NVm (440 kgfVcm, 32 ftVlbf)
(d) Install a new gasket and the No.2 front exhaust pipe to the
front exhaust pipe with the 2 bolts and 2 new nuts.
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
9. INSTALL SUB HEATED OXYGEN SENSOR
Install a new gasket, the oxygen sensor and sensor cover
with the 2 nuts.
Torque: 18 NVm (180 kgfVcm, 13 ftVlbf)
10. M/T:
INSTALL CLUTCH RELEASE CYLINDER AND GROUND
STRAP
(a) Install the clutch release cylinder with the 2 bolts.
Torque: 13 NVm (130 kgfVcm, 9 ftVlbf)
(b) Connect the clutch line tube with the bolt.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
(c) Install the ground strap with the bolt.
Torque: 37 NVm (380 kgfVcm, 27 ftVlbf)
11. CONNECT ENGINE WIRE TO CABIN
(a) Push in the engine wire through the cowl panel.
NOTICE: Be careful not to damage the engine wire.
(b) Connect the 2 connectors to the connector cassette.
(c) Connect the connector to the instrument panel wire
connector.
(d) Connect the 2 connectors to the ECM.
(e) Connect the connector to the TRAC ECU.
(f) Insert the ECM bracket into the stay on the floor panel.
(g) Install the ECM with the nut.
(h) Install the ECM protector with the 2 nuts.
(i) Install the floor carpet.
(j) Install the scuff plate.
12. M/T:
INSTALL UPPER CONSOLE PANEL, SHIFT LEVER
BOOTS AND HOLDING BOLTS EG±130
± ENGINEENGINE MECHANICAL

13. CONNECT ENGINE WIRE TO COWL PANEL
14. INSTALL A/C COMPRESSOR
(a) Using a torx socket (E10), install the stud bolt and and
compressor.
Torque: 26 NVm (265 kgfVcm, 19 ftVlbf)
(b) Connect the compressor connector.
(c) Temporarily install the compressor with nut and 3 bolts.
(d) Alternately tighten the bolt and nut.
Torque: 52 NVm (530 kgfVcm, 38 ftVlbf)
15. INSTALL PS PRESSURE TUBE
16. INSTALL PS PUMP
(a) Install the pump bracket with the 3 bolts.
Torque:
A 58 NVm (590 kgfVcm, 43 ftVlbf)
B 39 NVm (400 kgfVcm, 29 ftVlbf)
(b) Install the pump housing with the 2 bolts.
Torque: 58 NVm (590 kgfVcm, 43 ftVlbf)
(c) Connect these hoses:
wAir hose to throttle body
wAir hose to air intake chamber
17. CONNECT FUEL HOSES
(a) Connect the fuel return hose to the fuel return pipe.
(b) Install the fuel return hose to the clamp of the dipstick guide.
(c) Install the fuel inlet hose with 2 new gaskets and the union
bolt.
Torque: 29 NVm (300 kgfVcm, 22 ftVlbf)
18. CONNECT WIRES AND CONNECTORS
19. CONNECT EVAP HOSE
20. CONNECT BRAKE BOOSTER VACUUM HOSE
21. CONNECT HEATER WATER HOSES
22. INSTALL CHARCOAL CANISTER
23. INSTALL WATER PUMP PULLEY, FAN, FLUID COUPLING
ASSEMBLY AND DRIVE BELT
(See step 10 in water pump installation in Cooling Sys-
tem)
24. M/T:
INSTALL DRIVE BELT TENSIONER DAMPER
(See step 19 timing belt installation)
25. INSTALL AIR CLEANER AND MAF METER ASSEMBLY
26. INSTALL NO.1 AIR HOSE
27. CONNECT CONTROL CABLES TO THROTTLE BODY
28. FILL WITH FUEL
29. FILL WITH ENGINE OIL
30. START ENGINE AND CHECK FOR LEAKS
± ENGINEENGINE MECHANICALEG±131

31. CHECK IGNITION TIMING
(See ignition timing inspection)
32. INSTALL RADIATOR ASSEMBLY
(See radiator installation in Cooling System)
33. INSTALL HOOD
34. ROAD TEST VEHICLE
Check for abnormal noise, shock slippage, correct shift
points and smooth operation.
35. RECHECK ENGINE COOLANT AND ENGINE OIL LEVELS EG±132
± ENGINEENGINE MECHANICAL

EXHAUST SYSTEM
COMPONENTS
± ENGINEENGINE MECHANICALEG±133

EG±134± ENGINEENGINE MECHANICAL

SERVICE SPECIFICATIONS
SERVICE DATA
 
 
 
 
 
Compression
pressure 
 
 
 
 
at 250 rpm STD 2JZ±GE
2JZ±GTE
Minimum 2JZ±GE
2JZ±GTE
Difference of pressure between each cylinder 
 
 
 
 
1,275 kPa (13.0 kgf/cm2, 185 psi) or more
1,079 kPa (11.0 kgf/cm2, 156 psi) or more
1,079 kPa (11.0 kgf/cm
2, 156 psi)
883 kPa (9.0 kgf/cm
2, 128 psi)
98 kPa (1.0 kgf/cm2, 14 psi) or less
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Valve
clearance 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
at cold Intake
Exhaust
Adjusting shim (for repair part) Mark 2500
Mark 2.550
Mark 2.600
Mark 2.650
Mark 2.700
Mark 2.750
Mark 2.800
Mark 2.850
Mark 2.900
Mark 2.950
Mark 3.000
Mark 3.050
Mark 3.100
Mark 3.150
Mark 3.200
Mark 3.250
Mark 3.300 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
0.15±0.25 mm (0.006±0.010 in.)
0.25±0.35 mm (0.010±0.014 in.)
2.500 mm (0.0984 in.)
2.550 mm (0.1004 in.)
2.600 mm (0.1024 in.)
2.650 mm (0.1043 in.)
2.700 mm (0.1063 in.)
2.750 mm (0.1083 in.)
2.800 mm (0.1102 in.)
2.850 mm (0.1122 in.)
2.900 mm (0.1142 in.)
2.950 mm (0.1161 in.)
3.000 mm (0.1181 in.)
3.050 mm (0.1201 in.)
3.100 mm (0.1220 in.)
3.150 mm (0.1240 in.)
3.200 mm (0.1260 in.)
3.250 mm (0.1280 in.)
3.300 mm (0.1299 in.)
 Ignition timing w/ Terminals TE1 and E1 connected of DLC1 105 BTDC @ idle
 
 Idle speed 
 2JZ±GE
2JZ±GTE 
 700 + 50 rpm
650 + 50 rpm
 
 
 
Intake
Manifold
Vacuum 
 
 
at idle speed 2JZ±GE
2JZ±GTE 
 
 
66.6 kPa (500 mmHg, 19.7 in.Hg) or more
60 kPa (450 mmHg, 17.7 in.Hg) or more
 
 Timing belt
Tensioner 
 Protrusion (from housing side) 
 8.0±8.8 mm (0.315±0.346 in.)
 
 
 
 
 
 
 
 
 
 
 
 
Cylinder head 
 
 
 
 
 
 
 
 
 
 
 
Warpage
Cylinder block side Maximum
Intake manifold side Maximum
Exhaust manifold side Maximum
Valve guide bore diameter STD
O/S 0.05
Valve seat
Refacing angle
Contacting angle
Contacting width Intake
Exhaust
Cylinder head bolt diameter STD
Minimum 
 
 
 
 
 
 
 
 
 
 
 
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
0.10 mm (0.0039 in.)
10.985±11.006 mm (0.4325±0.4333 in.)
11.035±11.056 mm (0.4344±0.4353 in.)
155, 455, 605
455
1.0±1.4 mm (0.039±0.055 in.)
1.2±1.6 mm (0.047±0.063 in.)
10.8±11.0 mm (0.425±0.433 in.)
10.7 mm (0.421 in.)
± ENGINEENGINE MECHANICALEG±135

 
 
 
Valve guide
Bushing 
 
 
Inside diameter
Outside diameter (for repair part) STD
O/S 0.05 
 
 
6.010±6.030 mm (0.2366±0.2374 in.)
11.033±11.044 mm (0.4344±0.4348 in.)
11.083±11.094 mm (0.4363±0.4368 in.)
 
 
 
 
 
 
 
 
 
 
 
Valve 
 
 
 
 
 
 
 
 
 
 
Valve overall length STD Intake
Exhaust
Minimum Intake
Exhaust
Valve face angle
Stem diameter Intake
Exhaust
Stem oil clearance STD Intake
Exhaust
Maximum Intake
Exhaust
Margin thickness STD
Minimum 
 
 
 
 
 
 
 
 
 
 
98.29±98.79 mm (3.8697±3.8894 in.)
98.84±99.34 mm (3.8913±3.9110 in.)
98.19 mm (3.8657 in.)
98.74 mm (3.8874 in.)
44.55
5.970±5.985 mm (0.2350±0.2356 in.)
5.965±5.980 mm (0.2348±0.2354 in.)
0.025±0.060 mm (0.0010±0.0024 in.)
0.030±0.065 mm (0.0012±0.0026 in.)
0.08 mm (0.0031 in.)
0.10 mm (0.0039 in.)
0.8±1.2 mm (0.031±0.047 in.)
0.5 mm (0.020 in.)
 
 
 
 
Valve spring
 
 
 
 
Deviation Maximum
Free length Blue painted mark
Yellow painted mark
Installed tension at 34.5 mm (1.358 in.)
 
 
 
 
2.0 mm (0.079 in.)
41.74 mm (1.6433 in.)
41.70 mm (1.6417 in.)
186±206 N (19.0±21.0 kgf, 42±46 lbf)
 
 
 
 
Valve lifter 
 
 
 
Lifter diameter
Lifter bore diameter
Oil clearance STD
Maximum 
 
 
 
30.966±30.976 mm (1.2191±1.2195 in.)
31.000±31.016 mm (1.2205±1.2211 in.)
0.024±0.050 mm (0.0009±0.0020 in.)
0.07 mm (0.0028 in.)
 
 
 
 
 
 
 
 
 
Camshaft 
 
 
 
 
 
 
 
 
Thrust clearance STD
Maximum
Cam lobe height STD Intake
Exhaust
Maximum Intake
Exhaust
Journal diameter
Journal oil clearance STD
Maximum
Circle runout Maximum 
 
 
 
 
 
 
 
 
0.080±0.190 mm (0.0031±0.0075 in.)
0.30 mm (0.0118 in.)
44.570±44.670 mm (1.7547±1.7587 in.)
44.770±44.870 mm (1.7626±1.7665 in.)
44.42 mm (1.7488 in.)
44.62 mm (1.7567 in.)
28.949±28.965 mm (1.1397±1.1404 in.)
0.035±0.072 mm (0.0014±0.0028 in.)
0.10 mm (0.0039 in.)
0.08 mm (0.0031 in.)
 
 Air intake
chamber 
 Warpage Maximum 
 0.15 mm (0.0059 in.)
 
 
 
Manifold 
 
 
Warpage Maximum Intake
Exhaust 2JZ±GE
2JZ±GTE 
 
 
0.15 mm (0.0059 in.)
0.50 mm (0.0196 in.)
0.80 mm (0.0315 in.)
 
 
 
 
 
Cylinder block 
 
 
 
 
Cylinder head surface warpage Maximum
Cylinder bore diameter STD
Maximum
Main bearing bolt diameter STD
Minimum 
 
 
 
 
0.07 mm (0.0028 in.)
86.000±86.013 mm (3.3858±3.3863 in.)
86.02 mm (3.3866 in.)
9.96±9.97 mm (0.3921±0.3925 in.)
9.7 mm (0.382 in.)
 
 
 
 
Connecting
Rod 
 
 
 
Thrust clearance STD
Maximum
Connecting bolt diameter STD
Minimum 
 
 
 
0.250±0.402 mm (0.0098±0.0158 in.)
0.50 mm (0.0197 in.)
8.1±8.3 mm (0.319±0.327 in.)
8.0 mm (0.315 in.)
EG±136± ENGINEENGINE MECHANICAL

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Connecting
rod (cont'd) 
 
 
 
 
 
 
 
 
 
 
 
 
 
Connecting rod oil clearance STD STD
U/S 0.25
Maximum STD
U/S 0.25
Connecting rod bearing center wall thickness
(Reference) STD Mark 1
Mark 2
Mark 3
Mark 4
Mark 5
Bushing inside diameter
Piston pin diameter
Piston pin oil clearance STD
Maximum
Rod bent Maximum per 100 mm (3.94 in.)
Rod twist Maximum per 100 mm (3.94 in.) 
 
 
 
 
 
 
 
 
 
 
 
 
 
0.035±0.053 mm (0.0014±0.0021 in.)
0.040±0.078 mm (0.0016±0.0031 in.)
0.08 mm (0.0031 in.)
0.09 mm (0.0035 in.)
1.492±1.495 mm (0.0587±0.0589 in.)
1.495±1.498 mm (0.0589±0.0590 in.)
1.498±1.501 mm (0.0590±0.0591 in.)
1.501±1.504 mm (0.0591±0.0592 in.)
1.504±1.507 mm (0.0592±0.0593 in.)
22.005±22.014 mm (0.8663±0.8667 in.)
21.997±22.006 mm (0.8660±0.8664 in.)
0.005±0.011 mm (0.0002±0.0004 in.)
0.05 mm (0.0020 in.)
0.05 mm (0.0020 in.)
0.15 mm (0.0059 in.)
 
 
 
 
 
 
 
 
 
 
Piston and
Piston ring
(2JZ±GE) 
 
 
 
 
 
 
 
 
 
Piston diameter
Piston oil clearance STD
Maximum
Piston ring groove clearance No.1
No.2
Piston ring end gap STD No.1
No.2
Oil
Maximum No.1
No.2
Oil 
 
 
 
 
 
 
 
 
 
85.935±85.945 mm (3.3833±3.3837 in.)
0.055±0.078 mm (0.0022±0.0031 in.)
0.10 mm (0.0039 in.)
0.011±0.070 mm (0.0004±0.0028 in.)
0.030±0.070 mm (0.0012±0.0028 in.)
0.300±0.470 mm (0.0118±0.0185 in.)
0.350±0.520 mm (0.0138±0.0205 in.)
0.130±0.450 mm (0.0051±0.0177 in.)
1.07 mm (0.0421 in.)
1.12 mm (0.0441 in.)
1.05 mm (0.0413 in.)
 
 
 
 
 
 
 
 
 
 
Piston and
Piston ring
(2JZ±GTE) 
 
 
 
 
 
 
 
 
 
Piston diameter
Piston oil clearance STD
Maximum
Piston ring groove clearance No.1
No.2
Piston ring end gap STD No.1
No.2
Oil
Maximum No.1
No.2
Oil 
 
 
 
 
 
 
 
 
 
85.917±85.927 mm (3.3826±3.3830 in.)
0.073±0.096 mm (0.0029±0.0038 in.)
0.12 mm (0.0047 in.)
0.040±0.080 mm (0.0016±0.0031 in.)
0.030±0.070 mm (0.0012±0.0028 in.)
0.300±0.400 mm (0.0118±0.0157 in.)
0.350±0.450 mm (0.0138±0.0178 in.)
0.130±0.380 mm (0.0051±0.0150 in.)
1.00 mm (0.0394 in.)
1.05 mm (0.0413 in.)
0.98 mm (0.0386 in.)
 
 
 
 
 
 
 
 
Crankshaft 
 
 
 
 
 
 
 
Thrust clearance STD
Maximum
Thrust washer thickness STD
Main journal oil clearance STD STD
U/S 0.25
Maximum STD
U/S 0.25
Main journal diameter STD
U/S 0.25 
 
 
 
 
 
 
 
0.020±0.220 mm (0.0008±0.0087 in.)
0.30 mm (0.0118 in.)
1.940±1.990 mm (0.0764±0.0783 in.)
0.026±0.040 mm (0.0010±0.0016 in.)
0.025±0.061 mm (0.0010±0.0024 in.)
0.06 mm (0.0024 in.)
0.08 mm (0.0031 in.)
61.984±62.000 mm (2.4403±2.4409 in.)
61.745±61.755 mm (2.4309±2.4313 in.)
± ENGINEENGINE MECHANICALEG±137