TOYOTA SUPRA 1986 Service Repair Manual

12. 2JZ±GTE M/T:
INSTALL DRIVE BELT TENSIONER BRACKET
Torque: 27 NVm (280 kgfVcm, 20 ftVlbf)
13. INSTALL TIMING BELT
(See step 3 in timing belt installation in Engine Mechani-
cal)
14. 2JZ±GTE:
INSTALL CRANKSHAFT POSITION SENSOR
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
15. 2JZ±GTE:
INSTALL GENERATOR
16. REMOVE ENGINE STAND FROM ENGINE
17. ASSEMBLY ENGINE AND TRANSMISSION
(See components for engine removal & transmission
separation and assembly)
18. INSTALL ENGINE WITH TRANSMISSION
(See components for engine removal and installation)
OIL COOLER (2JZ±GTE)
COMPONENTS FOR REMOVAL AND
INSTALLATION
EG±376± ENGINELUBRICATION SYSTEM

OIL COOLER REMOVAL
1. DISCONNECT PS RESERVOIR TANK WITHOUT
DISCONNECTING HOSES
(a) Disconnect the 2 clamps of the engine wire protector from the
bracket.
(b) Remove the 3 bolts and disconnect the reservoir tank.
2. DRAIN ENGINE COOLANT
3. REMOVE OIL FILTER
4. DISCONNECT WATER BYPASS HOSES FROM OIL
COOLER
5. REMOVE OIL COOLER
(a) Remove the relief valve, plate washer and oil cooler.
(b) Remove the 2 O±rings from the oil cooler.
OIL COOLER INSPECTION
1. INSPECT RELIEF VALVE
Push the valve with a wooden stick to check if it is stuck.
If stuck, replace the relief valve.
2. INSPECT OIL COOLER
Check the oil cooler for damage or clogging.
If necessary, replace the oil cooler.
OIL COOLER INSTALLATION
1. INSTALL OIL COOLER
(a) Install 2 new O±rings to the oil cooler.
(b) Apply a light coat of engine oil on the threads and under the
head of the relief valve.
(c) Temporarily install the oil cooler with the plate washer and
relief valve.
(d) Tighten the relief valve.
Torque: 78 NVm (800 kgfVcm, 58 ftVlbf)
2. CONNECT WATER BYPASS HOSES TO OIL COOLER
3. CONNECT PS RESERVOIR TANK
4. INSTALL OIL FILTER
5. FILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR LEAKS
7. CHECK ENGINE OIL LEVEL
± ENGINELUBRICATION SYSTEMEG±377

OIL NOZZLE (2JZ±GTE)
COMPONENTS
OIL NOZZLES REMOVAL
1. REMOVE CRANKSHAFT
(See step 6 in cylinder block disassembly in Engine Me-
chanical)
2. REMOVE OIL NOZZLES (WITH RELIEF VALVES)
Using a 5 mm hexagon wrench, remove the bolt and oil
nozzle. Remove the 6 oil nozzles.
OIL NOZZLES INSPECTION
INSPECT RELIEF VALVES (OIL NOZZLES)
Push the valve with a wooden stick to check if it is stuck.
If stuck, replace the relief valve.
OIL NOZZLES INSTALLATION
1. INSTALL OIL NOZZLES (WITH RELIEF VALVES)
Using a 5 mm hexagon wrench, install the oil nozzle with the
bolt. Install the 6 oil nozzles.
Torque: 8.8 NVm (90 kgfVcm, 78 in.Vlbf)
2. INSTALL CRANKSHAFT
(See step 8 in cylinder block assembly in Engine Me-
chanical) EG±378
± ENGINELUBRICATION SYSTEM

SERVICE SPECIFICATIONS
SERVICE DATA
 
 
 
Oil pressure 
 
 
at idle speed
at 3,000 rpm (2JZ±GE) or 4,000 rpm (2JZ±GTE) 
 
 
49 kPa (0.5 kgf/cm2, 7.1 psi) or more
324±579 kPa
(3.3±5.9 kgf/cm
2, 49±84 psi)
 
 
 
 
 
Oil pump
(2JZ±GE) 
 
 
 
 
Tip clearance STD
Maximum
Body clearance STD
Maximum
Side clearance STD
Maximum 
 
 
 
 
0.310±0.490 mm (0.0122±0.0193 in.)
0.53 mm (0.0209 in.)
0.100±0.175 mm (0.0039±0.0069 in.)
0.20 mm (0.0079 in.)
0.030±0.090 mm (0.0012±0.0035 in.)
0.12 mm (0.0047 in.)
 
 
 
 
 
Oil pump
(2JZ±GTE) 
 
 
 
 
Tip clearance STD
Maximum
Body clearance STD
Maximum
Side clearance STD
Maximum 
 
 
 
 
0.056±0.326 mm (0.0022±0.0128 in.)
0.40 mm (0.0157 in.)
0.080±0.135 mm (0.0031±0.0053 in.)
0.16 mm (0.0063 in.)
0.020±0.065 mm (0.0007±0.0026 in.)
0.10 mm (0.0039 in.)
TORQUE SPECIFICATIONS
 Part tightened NVm kgfVcm ftVlbf
 
 
A/C compressor x Cylinder block for stud bolt
for bolt and nut 
 
26
52 
 
265
530 
 
19
38
 Oil pressure switch x Cylinder block 14 150 11
 Drive belt tensioner damper x Tensioner arm (2JZ±GTE M/T) 20 200 14
 Oil drain plug x No.2 oil pan 38 375 27
 Oil pump body cover x Oil pump body 10 105 8
 
 
Plug x Oil pump body 2JZ±GE
2JZ±GTE 
 
49
29 
 
500
300 
 
36
22
 Oil pump x Cylinder block 21 210 15
 
 
No.1 oil pan x Cylinder block 12 mm head
14 mm head 
 
21
39 
 
210
400 
 
15
29
 Turbo oil outlet pipe x No.1 oil pan (2JZ±GTE) 27 280 20
 Oil pan baffle plate x No.1 oil pan 8.8 90 78 in.Vlbf
 Oil strainer x No.1 oil pan 8.8 90 78 in.Vlbf
 No.2 oil pan x No.1 oil pan 8.8 90 78 in.Vlbf
 Oil level sensor x No.1 oil pan 5.4 55 48 in.Vlbf
 Drive belt tensioner bracket x Oil pump (2JZ±GTE) 27 280 20 Crankshaft position sensor x Oil pump (2JZ±GTE) 8.8 90 78 in.Vlbf Oil cooler x Oil filter bracket (2JZ±GTE) 78 800 58 Oil nozzle x Cylinder block (2JZ±GTE) 8.8 90 78 in.Vlbf
± ENGINELUBRICATION SYSTEMEG±379

±MEMO± EG±380
± ENGINELUBRICATION SYSTEM

EMISSION CONTROL SYSTEMS (2JZ±GTE)
SYSTEM PURPOSE
The emission control systems are installed to reduce the amount of CO, HC and NOx exhausted from the
engine ((3), (4) and (5)), to prevent the atmospheric release of blow±by gas±containing HC (1) and evapo-
rated fuel containing HC being released from the fuel tank (2).
The function of each system is shown in the following table.
 System Abbreviation Function 
 
 
 
 
 
(1) Positive Crankcase Ventilation
(2) Evaporative Emission Control
(3) Exhaust Gas Recirculation
(4) Three±way Catalytic Converter
(5) Sequential Multiport Fuel Injection*
 
 
 
 
 
 
PCV
EVAP
EGR
TWC
SFI
 
 
 
 
 
 
Reduces HC
Reduces evaporated HC
Reduces NOx
Reduces CO, HC and NOx
Injects a precisely timed, optimum amount of fuel for reduced
exhaust emissions
Remark: * For inspection and repair of the SFI system, refer to the SFI section this manual.
PREPARATION
RECOMMENDED TOOLS
09082±00050 TOYOTA Electrical Tester Set


EQUIPMENT
 
 Tachometer 
 
 
 
Torque wrench 
 
 
 
Vacuum gauge 
 
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)EG±175

EMISSION CONTROL SYSTEMS (2JZ±GTE)
SYSTEM PURPOSE
The emission control systems are installed to reduce the amount of CO, HC and NOx exhausted from the
engine ((3), (4) and (5)), to prevent the atmospheric release of blow±by gas±containing HC (1) and evapo-
rated fuel containing HC being released from the fuel tank (2).
The function of each system is shown in the following table.
 System Abbreviation Function 
 
 
 
 
 
(1) Positive Crankcase Ventilation
(2) Evaporative Emission Control
(3) Exhaust Gas Recirculation
(4) Three±way Catalytic Converter
(5) Sequential Multiport Fuel Injection*
 
 
 
 
 
 
PCV
EVAP
EGR
TWC
SFI
 
 
 
 
 
 
Reduces HC
Reduces evaporated HC
Reduces NOx
Reduces CO, HC and NOx
Injects a precisely timed, optimum amount of fuel for reduced
exhaust emissions
Remark: * For inspection and repair of the SFI system, refer to the SFI section this manual.
PREPARATION
RECOMMENDED TOOLS
09082±00050 TOYOTA Electrical Tester Set
EQUIPMENT
 
 Tachometer 
 
 
 
Torque wrench 
 
 
 
Vacuum gauge 
 
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)EG±175

LAYOUT AND SCHEMATIC DRAWING
EG±176± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)

POSITIVE CRANKCASE VENTILATION
(PCV) SYSTEM
PCV VALVE INSPECTION
1. REMOVE PCV VALVE
(a) Disconnect the PCV hose from the PCV valve.
(b) Remove the PCV valve.
2. INSTALL CLEAN HOSE TO PCV VALVE
3. INSPECT PCV VALVE OPERATION
(a) Blow air into the cylinder head side, and check that air passes
through easily.
CAUTION: Do not suck air through the valve. Petroleum sub-
stances inside the valve are harmful.
(b) Blow air into the air intake chamber side, and check that air
passes through with difficulty.
If operation is not as specified, replace the PCV valve.
4. REMOVE CLEAN HOSE FROM PCV VALVE
5. REINSTALL PCV VALVE
PCV HOSES AND CONNECTORS
INSPECTION
VISUALLY INSPECT HOSES, CONNECTIONS AND GAS-
KETS
Check for cracks, leaks or damage.
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)EG±177

EVAPORATIVE EMISSION (EVAP)
CONTROL SYSTEM
FUEL VAPOR LINES, FUEL TANK AND
TANK CAP INSPECTION
1. VISUALLY INSPECT LINES AND CONNECTIONS
Look for loose connections, sharp bends or damage.
2. VISUALLY INSPECT FUEL TANK
Look for deformation, cracks or fuel leakage.
3. VISUALLY INSPECT FUEL TANK CAP
Check if the cap and/or gasket are deformed or damaged.
If necessary, repair or replace the cap.
CHARCOAL CANISTER INSPECTION
1. REMOVE CHARCOAL CANISTER
2. VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
3. CHECK FOR CLOGGED FILTER AND STUCK CHECK
VA LV E
(a) Using low pressure compressed air (4.71 kPa (0.048
kgf/cm
2, 0.68 psi)), blow into port C and check that air flows
without resistance from the other ports. EG±178
± ENGINEEMISSION CONTROL SYSTEMS (2JZ±GTE)