Subaru 2002 IMPREZA Service Manual page 2304

BRAKE
C: INSPECTION
1) Secure the disc rotor by tightening five wheel
nuts.
2) Set a dial gauge on the disc rotor. Turn the disc
rotor to check runout.
CAUTION:
Securely fix the disc rotor to hub.
NOTE:
• Make sure that the dial gauge is set 5 mm (0.20
in) inward of rotor outer perimeter.
• If the disc rotor runout is above standard value,
inspect the play of hub bearing axial direction and
runout of axle hub. <Ref. to DS-23, INSPECTION,
Front Axle.> If the bearing and hub are normal, re-
place the disc rotor.
Disc rotor runout limit:
0.075 mm (0.0030 in)
3) Measure the disc rotor thickness.
If the thickness of disc rotor is outside the standard
value, replace the disc rotor.
NOTE:
Make sure that a micrometer is set 5 mm (0.20 in)
inward of the rotor outer perimeter.
Standard
value
24 mm
14"
(0.94 in)
Disc rotor 24 mm
15"
thickness A (0.94 in)
24 mm
16"
(0.94 in)
FRONT DISC ROTOR
B4M2353
G4M0365
Service Disc outer
limit dia.
22 mm 260 mm
(0.87 in) (10.24 in)
22 mm 277 mm
(0.87 in) (10.91 in)
22 mm 294 mm
(0.87 in) (11.57 in)
BR-26