TOYOTA SUPRA 1995 Service Repair Manual

4. CHECK DISC THICKNESS AND RUNOUT
(See page BR±34)
5. INSTALL NEW PADS
NOTICE: When replacing worn pads, the anti±squeal
shims must be replaced together with the pads.
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the pistons with a hammer handle or equivalent.
HINT:
wAlways change the pads on one wheel at a time as there
is a possibility of the opposite piston flying out.
wIf the piston is difficult to push in, loosen the bleeder plug
and push in the piston while letting some brake fluid
escape.
(c) Install the 2 anti±squeal shims on each pad.
HINT:
wApply disc brake grease to both sides of the inner
anti±squeal shim.
wMake sure that the arrow on the shims points upward.
(d) Install the 2 pads with pad wear indicator plates facing
downward.
NOTICE: Do not allow oil or grease to get on the rubbing
face.
6. INSTALL ANTI±RATTLE SPRING AND 2 PINS
7. INSTALL CLIP
CALIPER REMOVAL
Installation is in the reverse order of removal.
AFTER INSTALLATION, FILL BRAKE RESERVOIR WITH
BRAKE FLUID, BLEED BRAKE SYSTEM (See page BR±7)
AND CHECK FOR LEAKS
1. REMOVE REAR WHEEL
2. DISCONNECT BRAKE HOSE
(a) Remove the union bolt and 2 gaskets from the caliper, then
disconnect the brake hose from the caliper.
Torque: 30 NVm (310 kgfVcm, 22 ftVlbf)
INSTALLATION HINT: Install the flexible hose lock securely
in the lock hole in the caliper.
(b) Use a container to catch the brake fluid. BR±32
± BRAKE SYSTEMREAR BRAKE (2JZ±GTE)

3. REMOVE CALIPER
Remove the 2 mounting bolts and caliper.
Torque: 104 NVm (1,065 kgfVcm, 77 ftVlbf)
4. REMOVE THESE PARTS:
(a) Clip
(b) 2 pins
(c) Anti±rattle spring
(d) 2 pads
(e) 4 anti±squeal shims
CALIPER DISASSEMBLY
Assembly is in the reverse order of disassembly.
ASSEMBLY NOTICE: Apply lithium soap base glycol
grease to the parts indicated by the arrows (See page BR
±31)
1. REMOVE CYLINDER BOOT SET RINGS AND BOOTS
Using a screwdriver, remove the 2 cylinder boot set rings and
2 boots.
2. REMOVE PISTONS FROM CYLINDER
(a) Prepare a wooden plate to hold the pistons.
(b) Place the plate between the pistons and insert a pad on one
side.
(c) Use compressed air to remove the pistons alternately from
the caliper.
DISASSEMBLY CAUTION: Do not place your fingers in
front of the pistons when using compressed air.
3. REMOVE PISTON SEALS
Using a screwdriver, remove the 2 seals from the cylinder.
± BRAKE SYSTEMREAR BRAKE (2JZ±GTE)BR±33

REAR BRAKE COMPONENTS
INSPECTION AND REPAIR
1. MEASURE PAD LINING THICKNESS
Using a ruler, measure the lining thickness.
Standard thickness:
11.0 mm (0.433 in.)
Minimum thickness:
1.0 mm (0.039 in.)
Replace the pads if the thickness is less than the minimum
(the 1.0 mm slit is no longer visible) or if it shows signs of un-
even wear.
2. MEASURE DISC THICKNESS
Using a micrometer, measure the disc thickness.
Standard thickness:
16.0 mm (0.630 in.)
Minimum thickness:
15.0 mm (0.591 in.)
Replace the disc if the thickness of the disc is at the minimum
thickness or less. Replace the disc or grind it on a lathe if it
is badly scored or worn unevenly.
3. MEASURE DISC RUNOUT
Using a dial indicator, measure disc runout 10 mm (0.39 in.)
from the outer edge of the disc.
Maximum disc runout:
0.05 mm (0.0020 in.)
If the disc's runout is at the maximum value or greater, check
the bearing play in the axial direction and check the axle hub
runout (See page SA±38). If the bearing play and axle hub
runout are not abnormal, adjust the disc runout.
4. IF NECESSARY, ADJUST DISC RUNOUT
(a) Remove the hub nuts and the disc. Reinstall the disc 1/5 of
a turn round from its original position on the hub. Install and
torque the hub nuts.
Torque: 103 NVm (1,050 kgfVcm, 76 ftVlbf)
Remeasure the disc runout. Make a note of the runout and
the disc's position on the hub.
(b) Repeat (a) until the disc has been installed on the 3
remaining hub positions.
(c) If the minimum runout recorded in (a) and (b) is less than 0.05
mm (0.0020 in.), install the disc in that position.
(d) If the minimum runout recorded in (a) and (b) is greater than
0.05 mm (0.0020 in.), replace the disc and repeat step 3. BR±34
± BRAKE SYSTEMREAR BRAKE (2JZ±GTE)

REAR BRAKE (Parking Brake)
COMPONENTS
PARKING BRAKE DISASSEMBLY
1. REMOVE REAR WHEEL
2. REMOVE REAR DISC BRAKE ASSEMBLY
(a) Remove the 2 mounting bolts and remove the disc brake
assembly.
(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
adjuster until the disc turns freely.
± BRAKE SYSTEMREAR BRAKE (Parking Brake)BR±35

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.
PARKING BRAKE COMPONENTS
INSPECTION AND REPAIR
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, uneven wear, replace the brake shoe. BR±36
± BRAKE SYSTEMREAR BRAKE (Parking Brake)

3. MEASURE BRAKE DISC INSIDE DIAMETER
Using a vernier caliper, 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 val-
ue or more. Replace the disc or grind it with 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 m(in.) Thickness mm(in.)
 0.3 (0.012) 0.8 (0.031) (2JZ±GTE only)
 0.6 (0.024) 0.9 (0.035) (2JZ±GE only)
6. IF NECESSARY, REPLACE SHIM
(a) Remove the parking brake shoe lever, and install the correct
size shim.
(b) Install the parking brake shoe lever with a new C±washer.
(c) Remeasure the clearance.
± BRAKE SYSTEMREAR BRAKE (Parking Brake)BR±37

PARKING BRAKE ASSEMBLY
1. APPLY HIGH TEMPERATURE GREASE ON THESE
PARTS:
(a) Rubing surfaces of the backing plate and shoe
(b) Adjuster
2. CONNECT PARKING BRAKE CABLE TO PARKING
BRAKE LEVER
(a) Install the shoe hold±down springs, cups and pins.
(b) Connect the parking brake cable to the parking brake shoe
lever of the rear shoe.
3. INSTALL REAR SHOE
Slide in the rear shoe between the shoe hold±down spring
cup and the backing plate.
NOTICE: Do not allow oil or grease to get on the rubbing
face.
4. INSTALL TENSION SPRING, FRONT SHOE AND
ADJUSTER
(a) Install the tension spring on the rear shoe.
(b) Install the front shoe on the tension spring.
(c) Install the adjuster between the front and rear shoes.
(d) Slide in the front shoe between the shoe hold±down spring
cup and the backing plate.
5. INSTALL STRUT WITH SPRING
Install the strut with the spring forward.
6. INSTALL SHOE RETURN SPRINGS
Using SST, install the front shoe return spring and then install
the rear shoe return spring.
SST 09718±20010
7. INSTALL DISC
(a) Before installing, polish the disc and shoe surfaces with
sandpaper.
(b) Align the matchmarks and install the disc. BR±38
± BRAKE SYSTEMREAR BRAKE (Parking Brake)

HINT: If there are no matchmarks, temporarily install the disc,
then measure the disc runout and install the disc in the posi-
tion.
(See page BR±30 or BR±34)
8. 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.
9. INSTALL REAR DISC BRAKE ASSEMBLY
Install the disc brake assembly and torque the 2 mounting
bolts.
Torque: 104 NVm (1,065 kgfVcm, 77 ftVlbf)
10. INSTALL REAR WHEEL
11. SETTLING PARKING BRAKE SHOES AND DISC
(a) Drive the vehicle at about 50 km/h (31mph) on a safe, level
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.
12. CHECK AND ADJUST PARKING BRAKE LEVER TRAVEL
± BRAKE SYSTEMREAR BRAKE (Parking Brake)BR±39

PROPORTIONING AND BY±PASS
VALVE (P & B VALVE)
FLUID PRESSURE INSPECTION
1. INSTALL LSPV GAUGE (SST) AND BLEED AIR
SST 09709±29017
2. RAISE MASTER CYLINDER PRESSURE AND CHECK
REAR WHEEL CYLINDER PRESSURE
2JZ±GTE:
 Master cylinder pressure Rear wheel cylinder 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)
BR±40± BRAKE SYSTEMPROPORTIONING AND BY±PASS VALVE (P & B VALVE)

2JZ±GE:
 Master cylinder pressure Rear wheel cylinder 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)
Specifications: If the rear wheel cylinder pressure is in-
correct, replace the master cylinder.
3. BLEED BRAKE SYSTEM (See page BR±7)
4. CHECK FOR FLUID LEAKAGE
± BRAKE SYSTEMPROPORTIONING AND BY±PASS VALVE (P & B VALVE)BR±41