TOYOTA SUPRA 1997 Service Repair Manual

BR0HG-01
Z09008
150 mm
(5.91 in.)50 mm
(1.97 in.)
16 mm
(0.630 in.) BR-56
- BRAKEREAR BRAKE CALIPER (2JZ-GTE)
1856 Author
: Date
:
1997 SUPRA (RM502U)
DISASSEMBLY
1. REMOVE CYLINDER BOOT SET RINGS AND BOOTS
(See step 1 on page BR-38)
2. REMOVE PISTONS FROM CYLINDER
(See step 2 on page BR-38)
3. REMOVE PISTON SEALS
(See step 3 on page BR-38)

BR0HH-01
- BRAKEREAR BRAKE CALIPER (2JZ-GTE)
BR-57
1857 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION
1. MEASURE PAD LINING THICKNESS (See page BR-32)
Standard thickness: 11.0 mm (0.433 in.)
Minimum thickness: 1.0 mm (0.039 in.)
2. MEASURE DISC THICKNESS (See page BR-32)
Standard thickness: 16.0 mm (0.630 in.)
Minimum thickness: 15.0 mm (0.591 in.)
3. MEASURE DISC RUNOUT (See page BR-32)
Maximum disc runout: 0.05 mm (0.0020 in.)
4. IF NECESSARY, ADJUST DISC RUNOUT (See page BR-32)

BR0HK-02
W00805
Guide Plate
Pin

Non-reusable part
High temperature greaseAdjuster

C-Washer
Shoe Return
SpringShim
Parking Brake Lever
Rear ShoeRear Disc
Brake
Assembly
Pin
Front ShoeAdjusterSpringShoe Strut
Tension
SpringShoe Hold-down Spring
(Spring Color : Pink)
Shoe Hold-down
Spring Cup
Shoe Hold-down Spring
(Spring Color : Blue) BR-60
- BRAKEPARKING BRAKE
1860 Author
: Date
:
1997 SUPRA (RM502U)
PARKING BRAKE
COMPONENTS

BR0HL-01
R07154
BR5358
Matchmarks
BR5349
BR5331
BR3564
- BRAKEPARKING BRAKE
BR-61
1861 Author
: Date
:
1997 SUPRA (RM502U)
DISASSEMBLY
1. REMOVE REAR WHEEL
2. REMOVE REAR DISC BRAKE ASSEMBLY
(a) Remove the 2 mounting bolts and remove the disc brake
assembly.
Torque: 104 N´m (1,065 kgf´cm, 77 ft´lbf)
(b) Suspend the disc brake securely and so the hose is not
stretched.
3. REMOVE DISC
(a) Place matchmarks on the disc and rear axle hub.
(b) Remove the disc.
HINT:

If the disc cannot be removed easily, return the shoe ad-
juster until the disc turns freely.

If there are no matchmarks, temporarily install the disc,
then measure the disc runout and install the disc in the
position (See step 4 on page BR-51).
4. REMOVE SHOE RETURN SPRINGS
Using needle-nose pliers, remove the 2 shoe return springs.
5. REMOVE SHOE STRUT WITH SPRING
6. REMOVE FRONT SHOE, ADJUSTER AND TENSION
SPRING
(a) Slide out the front shoe and remove the shoe adjuster.
(b) Disconnect the tension spring and remove the front shoe.
7. REMOVE REAR SHOE
(a) Slide out the rear shoe.
(b) Remove the tension spring from the rear shoe.
(c) Disconnect the parking brake cable from the parking
brake shoe lever.
(d) Remove the shoe hold-down spring cups, springs and
pins.

BR0HM-01
R07167
BR0897
R07168
R07169
BR-62
- BRAKEPARKING BRAKE
1862 Author
: Date
:
1997 SUPRA (RM502U)
INSPECTION
1. INSPECT DISASSEMBLED PARTS
Inspect the disassembled parts for wear, rust or damage.
2. MEASURE BRAKE SHOE LINING THICKNESS
Using a ruler, measure the thickness of the shoe lining.
Standard thickness: 2.5 mm (0.098 in.)
Minimum thickness: 1.0 mm (0.039 in.)
If the lining thickness is at the minimum thickness or less, or if
there is severe and uneven wear, replace the brake shoe.
3. MEASURE BRAKE DISC INSIDE DIAMETER
Using a vernier calipers, measure the inside diameter of the
disc.
Standard inside diameter: 190 mm (7.48 in.)
Maximum inside diameter: 191 mm (7.52 in.)
Replace the disc if the inside diameter is at the maximum value
or more. Replace the disc or grind it on a lathe if the disc is badly
scored or worn unevenly.
4. INSPECT PARKING BRAKE LINING AND DISC FOR
PROPER CONTACT
Apply chalk to the inside surface of the disc, then grind down
the brake shoe lining to fit. If the contact between the disc and
the brake shoe lining is improper, repair it using a brake shoe
grinder or replace the brake shoe assembly.
5. MEASURE CLEARANCE BETWEEN PARKING
BRAKE SHOE AND LEVER
Using a feeler gauge, measure the clearance.
Standard clearance: Less than 0.35 mm (0.0138 in.)
If the clearance is not within the specification, replace the shim
with one of the correct size.
Thickness mm(in.)Thickness mm(in.)
0.3 (0.012) 0.9 (0.035)
0.6 (0.024)

R07170
R07171
- BRAKEPARKING BRAKE
BR-63
1863 Author
: Date
:
1997 SUPRA (RM502U)
6. IF NECESSARY, REPLACE SHIM
(a) Using a screwdriver, remove the C-washer.
(b) Remove the shim and parking brake shoe lever, and
install the correct sized shim.
(c) Install the parking brake shoe lever with a new C-washer.
(d) Remeasure the clearance.

BR0HN-02
BR5358
Match-
marks BR-64
- BRAKEPARKING BRAKE
1864 Author
: Date
:
1997 SUPRA (RM502U)
REASSEMBLY
Reassembly is in the reverse order of disassembly (See
page BR-61).
HINT:
Apply high temperature grease to the parts indicated by the ar-
rows (See page BR-60).
1. ADJUST PARKING BRAKE SHOE CLEARANCE
(a) Temporarily install the hub nuts.
(b) Remove the hole plug.
(c) Turn the adjuster and expand the shoes until the disc
locks.
(d) Return the adjuster 8 notches.
(e) Install the hole plug.
2. SETTLING PARKING BRAKE SHOES AND DISC
(a) Drive the vehicle at about 50 km/h (31 mph) on a safe, lev-
el and dry road.
(b) With the parking brake release button pushed in, pull on
the lever with 88 N (9 kgf, 19.8 lbf) of force.
(c) Drive the vehicle for about 400 meters (0.25 mile) in this
condition.
(d) Repeat this procedure 2 or 3 times.
3. CHECK AND ADJUST PARKING BRAKE LEVER
TRAVEL (See page BR-9)

BR0HO-02
R07206
SST
SST
- BRAKEPROPORTIONING AND BY-PASS VALVE (P & B
VALVE)BR-65
1865 Author
: Date
:
1997 SUPRA (RM502U)
PROPORTIONING AND BY-PASS VALVE (P & B VALVE)
ON-VEHICLE INSPECTION
1. INSTALL LSPV GAUGE (SST) AND BLEED AIR
SST 09709-29017
2. RAISE MASTER CYLINDER PRESSURE AND CHECK REAR BRAKE CALIPER PRESSURE
3. INSTALL LSPV GAUGE (SST) AND BLEED AIR
SST 09709-29017
4. RAISE MASTER CYLINDER PRESSURE AND CHECK REAR BRAKE CALIPER PRESSURE
2JZ-GE Engine:
Master cylinder pressureRear brake caliper pressure
2,942 kPa (30 kgf/cm2, 427 psi)2,942 kPa (30 kgf/cm2, 427 psi)
7,845 kPa (80 kgf/cm2, 1,138 psi)4,756 kPa (48.5 kgf/cm2, 690 psi)
2JZ-GTE Engine:
Master cylinder pressureRear brake caliper pressure
2,452 kPa (25 kgf/cm2, 356 psi)2,452 kPa (25 kgf/cm2, 356 psi)
7,845 kPa (80 kgf/cm2, 1,138 psi)4,452 kPa (45.4 kgf/cm2, 646 psi)
If the rear brake caliper pressure is incorrect, replace the master cylinder.
5. BLEED BRAKE SYSTEM (See page BR-5)
6. CHECK FOR FLUID LEAKAGE

W02794
BR0HT-02
R09422
Sub-Wire Harness G (SST)
(SST)
Sub-Wire Harness L (SST)
Sub-Wire Harness I (SST) ABS
Actuator BR-72
- BRAKEABS ACTUATOR (2JZ-GTE)
1872 Author
: Date
:
1997 SUPRA (RM502U)
ABS ACTUATOR (2JZ-GTE)
ON-VEHICLE INSPECTION
HINT:
Using the ABS actuator checker (SST), check the operation of
the actuator. If the actuator does not operate, check the opera-
tion of sub-wire harness G according to instructions on pages
DI-509.. If the solenoid and/or pump motor relay are abnormal,
replace the relay and inspect the actuator operation again.
1. INSPECT BATTERY POSITIVE VOLTAGE
Battery positive voltage: 10-14 V
2. DISCONNECT 2 CONNECTORS FROM ACTUATOR
3. CONNECT ACTUATOR CHECKER (SST) TO ACTUA-
TOR
(a) Connect the actuator checker (SST) to the actuator side
wire harnesses via the sub-wire harnesses (SST), as
shown.
SST 09990-00150, 09990-00250, 09990-00300,
09990-00360
(b) Connect the red cable of the checker to the battery posi-
tive (+) terminal and black cable to the negative (-) termi-
nal. Connect the black cable of the sub-wire harnesses
to the battery negative (-) terminal or body ground.

W03289
W03290
W03291
W03292
- BRAKEABS ACTUATOR (2JZ-GTE)
BR-73
1873 Author
: Date
:
1997 SUPRA (RM502U)
(c) Place the ºSHEET Nº (SST) on the actuator checker.
SST 09990-00410
4. INSPECT BRAKE ACTUATOR OPERATION OF
FRONT LH WHEEL
(a) Start the engine, and run it at idle.
(b) Turn the selector switch of the actuator checker to
ºFRONT RHº position.
(c) Push and hold in the MOTOR switch for a few seconds.
Make sure that you can hear the motor running.
(d) Depress the brake pedal and hold it for about 15 seconds,
and check that the pedal does not go down.
(e) With your foot still applying onto the brake pedal, push
MOTOR switch and check that the brake pedal does not
pulsate.
(f) Depress the brake pedal and hold it. As you hold the ped-
al down, push and hold in the MAIN push switch for a few
seconds. Check that the pedal does not go down.
NOTICE:
Do not keep pushing the MAIN push switch more than 10
seconds.
(g) With your foot still applying onto the brake pedal, release
the MAIN push switch and check that the pedal goes
down.
(h) With your foot still applying onto the brake pedal, push the
MOTOR switch and check that the brake pedal returns.
(i) Release the brake pedal.
5. INSPECT FOR OTHER WHEEL
(a) Turn the selector switch to the ºREAR LHº position, and
inspect the ºREAR LHº wheel.
(b) Repeating (c) to (i) in the step 4, check the actuator opera-
tion similarly.