TOYOTA SUPRA 1997 Service Repair Manual

SF0IC-02
Q08242
TOYOTA Hand-Held Tester
DLC3
P11358Sound Scope
- SFI (2JZ-GTE)FUEL CUT RPM
SF-87
1413 Author
: Date
:
1997 SUPRA (RM502U)
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND-HELD TESTER OR
OBDII SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBDII scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or
OBDII scan tool operator's manual for further details.
3. INSPECT FUEL CUTOFF OPERATION
(a) Increase the engine speed to at least 3,000 rpm.
(b) Check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF.
Fuel return speed:
1,400 rpm
(Vehicle speed less than 25 km/h (16 mph), with brake
OFF)
4. DISCONNECT TOYOTA HAND-HELD TESTER OR
OBDII SCAN TOOL

CH03L-01
P11586
Z18809
Except Maintenance-Free Battery
Z18810
Maintenance-Free BatteryVoltmeter
Z11580
Blue
OKWhite
Charging
NecessaryRed
Insufficient
Water Maintenance-Free Battery CH-2
- CHARGINGCHARGING SYSTEM
1525 Author
: Date
:
1997 SUPRA (RM502U)
ON-VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
Check the electrolyte quantity of each cell.
Maintenance-Free Battery:
If under the lower level, replace the battery (or add distilled wa-
ter if possible). Check the charging system.
Except Maintenance-Free Battery:
If under the lower level, add distilled water.
2. Except Maintenance-Free Battery:
CHECK BATTERY SPECIFIC GRAVITY
Check the specific gravity of each cell.
Standard specific gravity: 1.25 - 1.29 at 20°C (68°F)
If the specific gravity is less than specification, charge the bat-
tery.
3. Maintenance-Free Battery:
CHECK BATTERY POSITIVE VOLTAGE
(a) After having driven the vehicle and in the case that 20
minutes have not passed after having stopped the en-
gine, turn the ignition switch ON and turn on the electrical
system (headlight, blower motor, rear defogger etc.) for
60 seconds to remove the surface charge.
(b) Turn the ignition switch OFF and turn off the electrical sys-
tems.
(c) Measure the battery positive voltage between the nega-
tive (-) and positive (+) terminals of the battery.
Standard voltage: 12.5 - 12.9 V at 20°C (68°F)
If the voltage is less than specification, charge the battery.
HINT:
Check the indicator as shown in the illustration.
4. CHECK BATTERY TERMINALS AND FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
If the terminals are corroded, clean the terminals.
(b) Check the fuses for continuity.

Z05962
P11595
P11594
P10652
Type A
Type BAB
AB
Z05963
CORRECT WRONGWRONG
- CHARGINGCHARGING SYSTEM
CH-3
1526 Author
: Date
:
1997 SUPRA (RM502U)
5. INSPECT DRIVE BELT
HINT:
A belt tensioner is used, so checking the belt tension is not nec-
essary.
(a) Visually check the drive belt for excessive wear, frayed
cords, etc.
If necessary, replace the drive belt.
HINT:

Cracks on the rib side of a drive belt are considered ac-
ceptable. If the drive belt has chunks missing from the
ribs, it should be replaced.

The drive belt tension can be released by turning the belt
tensioner clockwise.
(b) Check the belt tensioner operation.

Check that the belt tensioner moves downward
when the drive belt is pressed down at the points in-
dicated in the illustration with approx. 98 N (10 kgf,
22.0 lbf) of force.

Check the alignment of the belt tensioner pulley to
make sure the drive belt will not slip off the pulley.
If necessary, replace the belt tensioner.

Check that the arrow mark on the belt tensioner falls
within area A of the scale.
If it is outside area A, replace the drive belt.
HINT:

When a new belt is installed, it should lie within area B. If
not, the drive belt is not correct.

After installing a drive belt, check that it fits properly in the
ribbed grooves.

Check by hand to confirm that the belt has not slipped out
of the groove on the bottom of the pulley.

Z03473
Disconnect Wire
from Terminal B Ammeter
Battery
Generator
Voltmeter
P10822Terminal F CH-4
- CHARGINGCHARGING SYSTEM
1527 Author
: Date
:
1997 SUPRA (RM502U)
6. REMOVE ENGINE UNDER COVER
7. VISUALLY CHECK GENERATOR WIRING AND
LISTEN FOR ABNORMAL NOISES
(a) Check that the wiring is in good condition.
(b) Check that there is no abnormal noise from the generator
while the engine is running.
8. CHECK CHARGE WARNING LIGHT CIRCUIT
(a) Warm up the engine and then turn it off.
(b) Turn off all accessories.
(c) Turn the ignition switch ºONº. Check that the charge warn-
ing light is lit.
(d) Start the engine. Check that the light goes off.
If the light does not go off as specified, troubleshoot the charge
light circuit.
9. INSPECT CHARGING CIRCUIT WITHOUT LOAD
HINT:
If a battery/generator tester is available, connect the tester to
the charging circuit as per manufacturer's instructions.
(a) If a tester is not available, connect a voltmeter and amme-
ter to the charging circuit as follows:

Disconnect the wire from terminal B of the genera-
tor, and connect it to the negative (-) probe of the
ammeter.

Connect the positive (+) probe of the ammeter to
terminal B of the generator.

Connect the positive (+) probe of the voltmeter to
terminal B of the generator.

Ground the negative (-) probe of the voltmeter.
(b) Check the charging circuit as follows:
With the engine running from idling to 2,000 rpm, check
the reading on the ammeter and voltmeter.
Standard amperage: 10 A or less
Standard voltage: 13.2 - 14.8 V
If the voltmeter reading is more than standard voltage, replace
the voltage regulator.
If the voltmeter reading is less than standard voltage, check the
voltage regulator and generator as follows:

With terminal F grounded, start the engine and
check the voltmeter reading of terminal B.

If the voltmeter reading is more than standard volt-
age, replace the voltage regulator.

If the voltmeter reading is less than standard volt-
age, check the generator.

- CHARGINGCHARGING SYSTEM
CH-5
1528 Author
: Date
:
1997 SUPRA (RM502U)
10. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn on the high
beam headlights and place the heater blower switch at
ºHIº.
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more
If the ammeter reading is less than the standard amperage, re-
pair the generator.
HINT:
If the battery is fully charged the indication will sometimes be
less than standard amperage.
11. REINSTALL ENGINE UNDER COVER

CH03M-01
S05220
Drive Belt Tensioner Damper (2JZ-GTE M/T) Generator WireGenerator Connector
Generator
Drive Belt
Pipe Clamp (A/T)A/T Oil Cooler Pipe Pipe Bracket (A/T)
No.2 Fan Shroud
No.2 Air Tube
Engine Under Cover
x 16 (2JZ-GTE) CH-6
- CHARGINGGENERATOR
1529 Author
: Date
:
1997 SUPRA (RM502U)
GENERATOR
COMPONENTS

P19044B02786
Drive End Frame
(Stator)
PulleyBearing RetainerRotorBearing Cover
Front BearingRear
BearingGenerator
Washer
Rear End Cover
Brush Holder
Terminal Insulator
Wire Clip
Plate Terminal
Brush Holder Cover
Seal Plate
Voltage Regulator
Rectifier Holder
Rubber Insulator x 4 Rectifier End Frame 2JZ-GTE M/T
PulleyDrive End Frame
(Stator)Rotor
Front BearingBearing RetainerBearing Cover
Generator
Washer
Wire ClipRear
Bearing
Terminal InsuratorBrush Holder Cover
Brush Holder
Rectifier End Frame
Rubber Insulator x 4Rectifier HolderVoltage RegulatorSeal Plate
Rear End CoverPlate Terminal Except 2JZ-GTE M/T
- CHARGINGGENERATOR
CH-7
1530 Author
: Date
:
1997 SUPRA (RM502U)

CH03N-01
Z09078
2JZ-GTE M/T
Except 2JZ-GTE M/T
Z16728
A/T
P11566
CH-8
- CHARGINGGENERATOR
1531 Author
: Date
:
1997 SUPRA (RM502U)
REMOVAL
1. REMOVE ENGINE UNDER COVER
2. 2JZ-GTE:
REMOVE NO.2 AIR TUBE FOR CAC
3. REMOVE NO.2 FAN SHROUD
4. 2JZ-GTE M/T:
REMOVE DRIVE BELT TENSIONER DAMPER
Torque: 20 N´m (200 kgf´cm, 14 ft´lbf)
5. REMOVE DRIVE BELT
6. REMOVE GENERATOR
(a) Disconnect the generator connector.
(b) Remove the rubber cap and nut, and disconnect the gen-
erator wire.
(c) Disconnect the generator wire clamp from the wire clip on
the generator.
(d) A/T:
Remove the bolt and pipe clamp, and disconnect the 2 oil
cooler pipes from the generator.
(e) Remove the bolt, nut, pipe bracket and generator.
Torque: 40 N´m (400 kgf´cm, 30 ft´lbf)

CH03S-01
P10825
P11838
P11841
P11842
P10634
- CHARGINGGENERATOR
CH-9
1532 Author
: Date
:
1997 SUPRA (RM502U)
DISASSEMBLY
1. REMOVE REAR END COVER
(a) Remove the nut and terminal insulator.
(b) Remove the bolt, 3 nuts, plate terminal and end cover.
2. REMOVE BRUSH HOLDER AND VOLTAGE
REGULATOR
(a) Remove the brush holder cover from the brush holder.
(b) Remove the 5 screws, brush holder and voltage regulator.
(c) Remove the seal plate from the rectifier end frame.
3. REMOVE WIRE CLIP
Remove the nut and wire clip.
4. REMOVE RECTIFIER HOLDER
(a) Remove the 4 screws and rectifier holder.
(b) Remove the 4 rubber insulators.

P10835
Turn
SST (B)SST (A)
Z00040
SST (C)
Turn
P10836
Turn
SST (B)SST (A)
P10635
P18676
SST CH-10
- CHARGINGGENERATOR
1533 Author
: Date
:
1997 SUPRA (RM502U)
5. REMOVE PULLEY
(a) Hold SST (A) with a torque wrench, and tighten SST (B)
clockwise to the specified torque.
SST 09820-63010
Torque: 39 N´m (400 kgf´cm, 29 ft´lbf)
(b) Check that SST (A) is secured to the rotor shaft.
(c) Mount SST (C) in a vise.
(d) Insert SST (B) into SST (C), and attach the pulley nut to
SST (C).
(e) To loosen the pulley nut, turn SST (A) in the direction
shown in the illustration.
NOTICE:
To prevent damage to the rotor shaft, do not loosen the
pulley nut more than one-half of a turn.
(f) Remove the generator from SST (C).
(g) Turn SST (B), and remove SST (A and B).
(h) Remove the pulley nut and pulley.
6. REMOVE RECTIFIER END FRAME
(a) Remove the 3 nuts.
(b) Using SST, remove the rectifier end frame.
SST 09950-40010
(c) Remove the generator washer.
7. REMOVE ROTOR FROM DRIVE END FRAME