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Brake pad
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove caliper pin bolts (2).
3) Remove caliper (1) from caliper carrier.
4) Remove pads (3).
INSPECTION
Check pad lining for wear. When wear exceeds limit, replace with
new one.
Brake pad thickness (lining + pad rim)
Standard : 15 mm (0.59 in.)
Limit : 7 mm (0.28 in.)
1. Caliper
3. Disc
NOTE:
Hang removed caliper (1) with a wire hook (2) or the like
so as to prevent brake hose from bending and twisting
excessively or being pulled.
Don’t operate brake pedal with pads (3) removed.
CAUTION:
Never polish pad lining with sandpaper. If lining is pol-
ished with sandpaper, hard particles of sandpaper will be
deposited in lining and may damage disc. When pad lin-
ing requires correction, replace it with a new one.
NOTE:
When pads are removed, visually inspect caliper for
brake fluid leak. Correct leaky point, if any.
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INSTALLATION
1) Install pad shim (1) (to outside pad) and pads (2) to caliper
carrier (3).
2) Install caliper and torque caliper pin bolts (1) to specification.
Tightening torque
Brake caliper pin bolts
(a) : 22 N·m (2.2 kg-m, 16.0 Ib-ft)
3) Install wheel and torque front wheel nuts to specification.
Tightening torque
Wheel nuts
(a) : 95 N·m (9.5 kg-m, 69.0 lb-ft)
4) Upon completion of installation, perform brake test.NOTE:
See NOTE at the beginning of this section.
NOTE:
Make sure that boots are fit into groove securely.
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Caliper assembly
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove brake flexible hose mounting bolt from caliper. As
this will allow fluid to flow out of hose, have a container ready
beforehand.
3) Remove caliper pin bolts.
4) Remove caliper from carrier.
DISASSEMBLY
1) Before disassembly, clean all around caliper with brake fluid.
2) Remove piston set ring (1) and boot from caliper, pry off with
a flat-bladed tool. Be careful not to damage boot.
3) Blow compressed air into cylinder through bolt hole where
flexible hose was fitted. With this air pressure, piston can be
pushed out of cylinder.
4) Remove piston seal using a thin blade like a thickness
gauge, etc.
5) Remove bleeder plug and cap from caliper.
WARNING:
Do not apply too highly compressed air which will cause
piston to jump out of cylinder. Place a cloth (1) to prevent
piston from damage. It should be taken out gradually
with moderately compressed air. Do not place your fin-
gers in front of piston when using compressed air.
NOTE:
Be careful not to damage inside (bore side) of cylinder.
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INSPECTION
Cylinder Slide Bush
Check slide bush for smooth movement as shown.
If it is found faulty, correct or replace. Apply rubber grease to bush
outer surface. Rubber grease should be the one whose viscosity
is less affected by such low temperature as – 40 °C (– 40 °F).
Bush Dust Boot and Cylinder Boot
Check boots for breakage, crack and damage. If defective,
replace.
Piston Seal
Excessive or uneven wear of pad lining may indicate unsmooth
return of the piston. In such a case, replace rubber seal.
1. Apply rubber grease
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ASSEMBLY
1) Check that slide bushes and boots for wear, corrosion, dam-
age, movement or deterioration. If it is found faulty, correct or
replace.
Apply rubber grease to bush outer surface. And then make
sure that each bush slides easily through each caliper bolt
hole.
2) Tighten bleeder plug to specified torque and install cap.
Tightening torque
Front caliper bleeder plug
(a) : 11 N·m (1.1 g-m, 8.0 lb-ft)
3) Piston seal is used to seal piston and cylinder and to adjust
clearance between pad and disc. Replace with a new one at
every overhaul. Fit piston seal into groove in cylinder taking
care not to twist it.
4) Before inserting piston (2) into cylinder, install new boot (1)
onto piston (2) as shown.
“A” : 2-grooved side directed inside
“B” : 3-grooved side directed outside CAUTION:
Wash each part cleanly before installation in the same
fluid as the one used in master cylinder reservoir.
Never use other fluid or thinner.
Before installing piston and piston seal to cylinder,
apply fluid to them.
After reassembling brake lines, bleed air from them.
NOTE:
Where temperature gets as low as – 30 °C (– 22 °F) in cold
weather, use rubber grease whose viscosity varies very
little even at – 40 °C (– 40 °F).
1. Apply rubber grease
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5) Fit boot as it is in figure into boot groove in cylinder with fin-
gers.
6) Insert piston into cylinder by hand and fit boot in boot groove
in piston.
7) To confirm that boot is fitted in its groove in cylinder properly,
pull piston out of cylinder a little but do not take it all out.
8) Insert piston into cylinder by hand.
9) Install piston set ring.
INSTALLATION
1) Install caliper to caliper carrier.
2) Torque caliper pin bolts (1) to specification.
Tightening torque
Brake caliper pin bolts
(a) : 22 N·m (2.2 kg-m, 16.0 lb-ft)
NOTE:
Boot’s face “B” should be at the same level from cylin-
der’s face “A” all around.
NOTE:
Make sure that boots are fit into groove securely.
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3) Install brake flexible hose (4) as shown and torque hose
mounting bolt (3) to specification.
Tightening torque
Front brake flexible hose bolt
(a) : 23 N·m (2.3 kg-m, 17.0 lb-ft)
4) Install wheel and torque wheel nuts to specification.
5) After completing installation, fill reservoir with brake fluid and
bleed brake system. Perform brake test and check each
installed part for oil leakage.
Brake Disc
REMOVAL
1) Hoist vehicle and remove wheel.
2) Remove caliper assembly by loosening carrier bolts (2 pcs).
3) Pull brake disc off by using 8 mm bolts (1) (2 pcs).
1. Brake caliper
2. Washer
CAUTION:
During removal, be careful not to damage brake flexible
hose and not to depress brake pedal.
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INSPECTION
Check disc surface for scratches in wearing parts. Scratches on
disc surface noticed at the time of specified inspection or replace-
ment are normal and disc is not defective unless they are serious.
But when there are deep scratches or scratches all over disc sur-
face, replace it. When only one side is scratched, polish and cor-
rect that side.
Brake disc thickness “a”
Standard : 10 mm (0.394 in.)
Limit : 8.0 mm (0.315 in.)
Use wheel nuts (1) and suitable plain washers (2) to hold the disc
securely against the hub, then mount a dial indicator as shown
and measure the runout at 10 mm (0.39 in.) from the outer edge
of the disc.
Disk deflection
Limit : 0.15 mm (0.006 in.)
INSTALLATION
1) Install disc to wheel hub.
2) Install caliper assembly to steering knuckle.
3) Torque caliper carrier bolts to specification.
Tightening torque
Brake caliper carrier bolts
(a) : 85 N·m (8.5 kg-m, 61.5 lb-ft)
4) Install wheel and torque front wheel nuts to specification.
5) Upon completion of installation, perform brake test.
NOTE:
Check front wheel bearing for looseness before measure-
ment.
NOTE:
See NOTE at the beginning of this section.