Page 1752 of 1807
SS0E7-07
SS-34
- SERVICE SPECIFICATIONSCHARGING
191 Author: Date:
1997 SUPRA (RM502U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Bearing retainer x Drive end frame3.03127 in.´lbf
Rectifier end frame x Drive end frame4.54640 in.´lbf
Generator pulley x Rotor110.51,12581
Rectifier holder x Coil lead on rectifier end frame2.93026 in.´lbf
Wire clip x Rectifier end frame5.45548 in.´lbf
Voltage regulator x Rectifier end frame2.02018 in.´lbf
Voltage regulator x Rectifier holder2.02018 in.´lbf
Brush holder x Rectifier holder2.02018 in.´lbf
Brush holder x Voltage regulator2.02018 in.´lbf
Rear end cover x Rectifier holder4.44539 in.´lbf
Plate terminal x Rectifier holder3.94035 in.´lbf
Terminal insulator x Rectifier holder6.56758 in.´lbf
Generator x Water pump3738027
Generator x Cylinder block3738027
Page 1784 of 1807
TC037-01
(Possible Cause)
(Check Procedure and Correction Method)
Check intake air system, and repair or replace parts
as necessary. (See page TC-5)
Check intake air system, and repair or replace parts
as necessary. (See page TC-5)
Check exhaust system, and repair or replace parts
as necessary. (See page TC-5)
Check exhaust system, and repair or replace parts
as necessary. (See page TC-5) Check turbocharging pressure. (See page TC-5)
Turbocharging pressure:
61 - 75 kPa
(0.62 - 0.76 kgf/cm2, 8.8 - 10.8 psi)
If the pressure is below specifications, begin
diagnosis from item 2.
Check rotation of turbine shaft. If it does not turn or
turns with a heavy drag, replace the turbocharger
assembly.
Check axial and radial play of turbine shaft.
(See page TC-18)
Maximum axial play : 0.110 mm (0.0045 in.)
Maximum radial play: 0.173 mm (0.0068 in.)
If the play is greater than maximum, replace the
turbocharger assembly.
3. LEAK IN INTAKE AIR SYSTEM
4. RESTRICTED EXHAUST SYSTEM
6. ERRATIC TURBOCHARGER 5. LEAK IN EXHAUST SYSTEM
OPERATION 1. TURBOCHARGING PRESSURE
TOO LOW
2. RESTRICTED INTAKE SYSTEM
- TURBOCHARGING (2JZ-GTE)TROUBLESHOOTING
TC-1
1201 Author: Date:
1997 SUPRA (RM502U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
HINT:
Before troubleshooting the turbocharger, first check the engine itself. (Valve clearance, engine compression,
ignition timing etc.)
1. INSUFFICIENT ACCELERATION, LACK OF POWER OR EXCESSIVE FUEL CONSUMPTION
Page 1785 of 1807
(Possible cause) (Check Procedure and Correction Method)
Check for deformed exhaust pipe, loose mounting
bolts or damaged gasket, and repair or replace as
necessary.
Refer to item 6 of INSUFFICIENT ACCELERATION,
LACK OF POWER OR EXCESSIVE FUEL
CONSUMPTION.
Check for loose, improperly installed or deformed
insulator mounting bolts, and repair or replace as
necessary.1. TURBOCHARGING HEAT
INSULATOR
2. EXHAUST PIPE LEAKING
VIBRATING
3. ERRATIC TURBOCHARGER
OPERATION
(Possible Cause)(Check Procedure and Correction Method)
Check for oil leakage in exhaust system
Remove the turbine elbow from the turbocharger
and check for excessive carbon deposits on the
turbine wheel. Excessive carbon deposits
indicate a faulty turbocharger.
Check for oil leakage in intake air system.
Check for axial and radial play of turbine shaft
and replace the turbocharger if necessary.
(See page TC-18)
Maximum axial play : 0.110 mm (0.0045 in.)
Maximum radial play : 0.173 mm (0.0068 in.)
Some oil mist in the blowby from the PCV is
Do not mistake it for an oil leak from the
turbocharger.
FAULTY TURBOCHARGER SEAL
NOTICE:
normal.
TC-2
- TURBOCHARGING (2JZ-GTE)TROUBLESHOOTING
1202 Author: Date:
1997 SUPRA (RM502U)
2. ABNORMAL NOISE
3. EXCESSIVE OIL CONSUMPTION OR WHITE EXHAUST
Page 1786 of 1807
TC00A-01
P11285
NO!
P13207
NO!
Ceramic
P11284
- TURBOCHARGING (2JZ-GTE)TURBOCHARGER
TC-3
1203 Author: Date:
1997 SUPRA (RM502U)
TURBOCHARGER
PRECAUTION
1. DO NOT STOP ENGINE IMMEDIATELY AFTER PULL-
ING A TRAILER OR AFTER HIGH SPEED OR UPHILL
DRIVING. IDLE ENGINE FOR 20 - 120 SECONDS, DE-
PENDING ON HOW HARD VEHICLE HAS BEEN DRIV-
EN
2. AVOID SUDDEN ACCELERATION OR RACING IM-
MEDIATELY AFTER STARTING A COLD ENGINE
3. DO NOT RUN ENGINE WITH AIR CLEANER RE-
MOVED, AS THIS MAY CAUSE FOREIGN MATERIAL
TO ENTER AND DAMAGE IMPELLER WHEEL OPER-
ATING AT HIGH SPEED
4. IF A TURBOCHARGER IS FOUND TO BE DEFECTIVE
AND MUST BE REPLACED, CHECK FOR CAUSE, AND
REPAIR OR REPLACE FOLLOWING ITEMS AS NEC-
ESSARY
Engine oil level and quality
Conditions under which the turbocharger was used
Oil lines leading to the turbocharger
5. USE CAUTION WHEN REMOVING AND REINSTAL-
LING TURBOCHARGER ASSEMBLY. DO NOT DROP
IT OR KNOCK IT AGAINST ANYTHING OR GRASP IT
BY EASILY-DEFORMED PARTS, SUCH AS ACTUA-
TOR OR ROD, WHEN MOVING IT
6. USE CAUTION WHEN REMOVING AND REINSTAL-
LING EXHAUST GAS CONTROL VALVE ASSEMBLY.
DO NOT DROP IT OR KNOCK IT AGAINST ANYTHING
OR GRASP IT BY EASILY-DEFORMED PARTS, SUCH
AS ACTUATOR OR ROD, WHEN MOVING IT. CON-
TROL VALVE IS CERAMIC
7. BEFORE REMOVING TURBOCHARGER, PLUG IN-
TAKE AND EXHAUST PORTS AND OIL INLET TO PRE-
VENT ENTRY OF DIRT OR OTHER FOREIGN MATERI-
AL
8. IF REPLACING TURBOCHARGER, CHECK FOR AC-
CUMULATION OF SLUDGE PARTICLES IN OIL PIPES,
AND IF NECESSARY, REPLACE OIL PIPES
9. COMPLETELY REMOVE GASKET ADHERED TO LU-
BRICATION OIL PIPE FLANGE AND TURBOCHAR-
GER OIL FLANGE
10. WHEN REPLACING BOLT OR NUTS, USE ONLY AU-
THORIZED REPLACEMENT PARTS TO PREVENT
BREAKAGE OR DEFORMATION
Page 1787 of 1807
P11352
TC-4
- TURBOCHARGING (2JZ-GTE)TURBOCHARGER
1204 Author: Date:
1997 SUPRA (RM502U)
11. IF REPLACING TURBOCHARGER, POUR APPROX.
20 cm
3 (1.2 cu in.) OF FRESH OIL INTO TURBOCHAR-
GER OIL INLET AND TURN IMPELLER WHEEL BY
HAND TO SPREAD OIL TO BEARING
12. IF OVERHAULING OR REPLACING ENGINE, CUT
FUEL SUPPLY AFTER REASSEMBLY AND CRANK
ENGINE FOR 30 SECONDS TO DISTRIBUTE OIL
THROUGHOUT ENGINE. THEN ALLOW ENGINE TO
IDLE FOR 60 SECONDS
Page 1788 of 1807
TC00C-01
P13205
Disconnect
Move49 kpa
SST
P12024
61 - 75 kpa
SST
- TURBOCHARGING (2JZ-GTE)TURBOCHARGER
TC-5
1205 Author: Date:
1997 SUPRA (RM502U)
ON-VEHICLE INSPECTION
1. INSPECT INTAKE AIR SYSTEM
Check for leakage or clogging between the air cleaner and
turbocharger inlet and between the turbocharger outlet and cyl-
inder head.
Clogged air cleaner ..Clean or replace air filter
Hoses collapsed or deformed .... Repair or replace
Leakage from connections .... Check each
connection and repair
Cracks in components .... Check and replace
2. INSPECT EXHAUST SYSTEM
Check for leakage or clogging between the cylinder head and
turbocharger inlet and between the turbocharger outlet and ex-
haust pipe.
Deformed components .... Repair or replace
Foreign material in passages .... Remove
Leakage from components .... Repair or replace
Cracks in components .... Check and replace
3. INSPECT EXHAUST GAS CONTROL
VALVE OPERATION
(a) Disconnect the air hose from the actuator.
(b) Using SST, apply approx. 49 kPa (0.50 kgf/cm
2, 7.1 psi)
of pressure to the actuator.
SST 09992-00242
(c) Check that the actuator push rod moves.
(d) Reconnect the air hose to the actuator.
If operation is not as specified, replace the control valve assem-
bly.
4. INSPECT TURBOCHARGING PRESSURE
(a) Using a 3-way connector, connect SST (turbocharger
pressure gauge) to the hose between the gas filter and
turbo pressure sensor.
SST 09992-00242
(b) While driving with the engine running at 5,600 rpm or
more with the throttle valve fully open in the 1st gear/L
range, check the turbocharging pressure.
Standard pressure:
61 - 75 kPa (0.62 - 0.76 kgf/cm
2, 8.8 - 10.8 psi)
If the pressure is less than that specified, check the intake and
exhaust systems for leakage. If there is no leakage, replace the
turbocharger assembly.
If the pressure is above specification, check if the actuator hose
is disconnected or cracked. If not, replace the turbocharger as-
sembly.
Page 1789 of 1807
TC-6
- TURBOCHARGING (2JZ-GTE)TURBOCHARGER
1206 Author: Date:
1997 SUPRA (RM502U)
5. INSPECT VSV FOR INTAKE AIR CONTROL VALVE
(See page SF-61)
6. INSPECT VSV FOR WASTE GATE VALVE
(See page SF-63)
7. INSPECT VSV FOR EXHAUST GAS CONTROL VALVE
(See page SF-65)
8. INSPECT VSV FOR EXHAUST BYPASS VALVE
(See page SF-67)
9. INSPECT TURBO PRESSURE SENSOR
(See page SF-79)
Page 1790 of 1807
TC00D-02
P20891
No.1 Air Hose
Air Cleaner
and MAF Meter
Assembly
Tube Bracket
Non-reusable Air Cleaner Duct
Theft Deterrent Horn
Tube Clamp
A/T Oil Cooler TubeMAF Meter Connector
Engine Wire Protector
Cruise Control
Actuator Cable
Heat Insulator
for No.2 Front
Exhaust Pipe
Pipe Support BracketGasket
Tube ClampFront Lower Arm
Bracket Stay
Engine Under CoverUpper Front
Crossmember
ExtensionNo.2 Front
Exhaust Pipe
Gasket
x 16
- TURBOCHARGING (2JZ-GTE)TURBOCHARGER
TC-7
1207 Author: Date:
1997 SUPRA (RM502U)
COMPONENTS
