Front Disc Rotor - Subaru LEGACY Service Manual

BRAKE

3. Front Disc Rotor

A: REMOVAL
1) Loosen wheel nuts, jack-up vehicle, support it
with safety stands, and remove wheel.
2) Remove caliper body from housing, and sus-
pend it from strut using a wire.
3) Remove the disc rotor.
NOTE:
If disc rotor seizes up within the hub, drive disc rotor
out by installing an 8-mm bolt in holes B on the ro-
tor.
A
4) Clean mud and foreign particles from caliper
body assembly and support.
B: INSTALLATION
1) Install the disc rotor.
2) Install the caliper body to housing.
Tightening torque:
78 N·m (8 kgf-m, 58 ft-lb)
FRONT DISC ROTOR
C: INSPECTION
1) Secure disc rotor by tightening the five wheel
nuts.
2) Set a dial gauge on the disc rotor. Turn disc rotor
to check runout.
NOTE:
BR-00017
• Make sure that dial gauge is set 5 mm (0.20 in)
inward of rotor outer perimeter.
• If disc rotor runout is above standard value, in-
spect play of hub bearing axial direction and runout
of axle hub.
<Ref. to DS-22, INSPECTION, Front Axle.>
If bearing and hub are normal, replace disc rotor.
Disc rotor runout limit:
3) Measure disc rotor thickness.
If thickness of disc rotor is outside the standard val-
ue, replace disc rotor.
B
BR-00018
NOTE:
Make sure that micrometer is set 5 mm (0.20 in) in-
ward of rotor outer perimeter.
Disc rotor
thickness A
BR-22
0.075 mm (0.0030 in)
A
Standard
value
24.0 mm
15"
(0.945 in)
24.0 mm
16"
(0.945 in)
BR-00019
B
BR-00018
Service Disc outer
limit dia.
22.0 mm 277 mm
(0.866 in) (10.91 in)
22.0 mm 294 mm
(0.866 in) (11.57 in)