Subaru Impreza 2003 Service Manual page 2175

3. Steel Wheel
A: REMOVAL
1) Apply parking brake, and position the select le-
ver to "P" or "LOW".
2) Set jacks or a lift to the specified point, and sup-
port the vehicle with its wheels slightly contacting
the floor.
3) Loosen the wheel nuts.
4) Raise the vehicle until its wheels take off the
ground using a jack or a lift.
5) Remove the wheel nuts and wheels.
NOTE:
• While removing the wheels, prevent the hub
bolts from damage.
• Place the wheels with their outer sides facing up-
ward to prevent the wheels from damage.
B: INSTALLATION
1) Remove dirt from the mating surface of wheel
and brake rotor.
2) Attach the wheel to hub by aligning the wheel
bolt hole with hub bolt.
3) Temporarily attach the wheel nuts to hub bolts.
(In the case of aluminum wheel, use SUBARU gen-
uine wheel nut for aluminum wheel.)
4) Manually tighten the nuts making sure the wheel
hub hole is aligned correctly to guide portion of hub.
5) Tighten the wheel nuts in a diagonal selection to
specified torque. Use a wheel nut wrench.
Wheel nut tightening torque:
90 N·m (9.1 kgf-m, 65.7 ft-lb)
CAUTION:
• Tighten the wheel nuts in two or three steps
by gradually increasing the torque and working
diagonally, until the specified torque is
reached. For drum brake models, excess tight-
ening of wheel nuts may cause wheels to "jud-
der".
• Do not depress the wrench with foot; Always
use both hands when tightening.
• Make sure the bolt, nut and nut seating sur-
face of the wheel are free from oils.
6) If a wheel is removed for replacement or for re-
pair of a puncture, retighten the wheel nuts to the
specified torque after running 1,000 km (600
miles).
STEEL WHEEL
C: INSPECTION
1) Deformation or damage on the rim can cause air
leakage. Check the rim flange for deformation,
crack or damage, and repair or replace as neces-
sary.
2) Jack-up the vehicle until wheels clear the floor.
3) Slowly rotate the wheel to check the rim "runout"
using a dial gauge.
Axial runout limit
(1) Approx. 7 mm (0.28 in)
4) If the rim runout exceeds specifications, remove
the tire from rim and check runout while attaching
the dial gauge to positions shown in the figure.
5) If the measured runout still exceeds specifica-
tions, replace the wheel.
WT-5
WHEEL AND TIRE SYSTEM
Radial runout limit
1.5 mm (0.059 in)
(1)
(1)
WT-00004
(1)
WT-00005