Subaru 2009 IMPREZA, Service Manual

Page: 2582 / 3619

BR-15
Front Disc Rotor
BRAKE
3. Front Disc Rotor
A: REMOVAL
1) Lift up the vehicle, and remove the front wheels.
2) Remove the caliper body and the support from
housing, and suspend it from the strut using a wire.
3) Remove the disc rotor.
NOTE:
If it is difficult to remove the disc rotor from the hub,
drive an 8 mm bolt into the threaded section (B) of
the rotor, then remove the rotor.
4) Remove mud and foreign matter from the caliper
body assembly and the support.
B: INSTALLATION
1) Install the disc rotor.
2) Install the caliper body and the support to hous-
ing.
Tightening torque:
80 N·m (8.2 kgf-m, 59 ft-lb)
3) Install the front wheels.
C: INSPECTION
1) Check the front wheel bearing play and axle hub
runout before the inspection of disc rotor runout
limit. <Ref. to DS-16, INSPECTION, Front Axle.>
2) Secure the disc rotor by tightening the five wheel
nuts.
3) Set a dial gauge 10 mm (0.39 in) inward from the
disc rotor outer circumference. Rotate the disc rotor
to check runout. If the disc rotor runout exceeds the
limit, resurface the disc rotor. After grinding, check
the thickness of the disc rotor according to the pro-
cedure in step 4).
Disc rotor runout limit:
0.05 mm (0.0020 in)
4) Set a micrometer 10 mm (0.39 in) inward from
the disc rotor outer perimeter, and then measure
the disc rotor thickness. If the thickness of the disc
rotor exceeds the service limit, replace with a new
disc rotor.
BR-00017
BR-00018
B
A
Specification Limit
Disc rotor
diameter
Disc rotor
thickness A
mm (in)
15
s
24 (0.94) 22 (0.87) 277 (10.91)
16
s
24 (0.94) 22 (0.87) 294 (11.57)
BR-00019
BR-00018
B
A