Subaru XT 1988 Service Manual page 845

4-2
WHEELS AND AXLES
Tread wear indicator
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Tire tread
A16-045
Fig_ 66
When replacing a tire, make sure to use only the same
siz~,
construction and load range as originally installed. AVOId
mixing radial, belted bias or bias tires on the vehicle.
Aluminum Wheel
INSPECTION
Inspection for aluminum wheels is basically the same as the
one for steel wheels. However, check the rim flange for cracks
or damage, and replace (not repair) aluminum wheel if air
leakage is found.
PRECAUTIONS
Aluminum wheels are easily scratched. To maintain their
appearance and safety, observe the following:
1) Do not damage aluminum wheels during removal, dis-
assembly, installation, wheel balancing, etc. After removing
aluminum wheels, place them on a rubber mat, etc.
2) While vehicle is being driven, be careful not to ride
over sharp obstacles or allow aluminum wheels to contact
the shoulder of the road.
3) When installing tire chain, be sure to install it properly
not to have a slack; otherwise it may hit wheel while driving.
4) When washing aluminum wheel, use neutral synthetic
detergent and water. Avoid using the cleanser including
abrasive, hard brushes or an automatic car washer.
30
Wheel Balancing
1) Proper wheel balance may be lost if the tire is repaire.d or
if it wears. Check the tire for dynamic balance, and repair as
necessary.
2) To check for dynamic balance, use a dynamic balancer.
Drive in the balance weight on both the top and rear sides of
the rim.
3) Some types of balancer can cause damage to the wheel.
Use an appropriate balancer when adjusting the wheel balance.
4) Use genuine balance weights.
Parts No. for
steel wheel
Weight g (oz)
723141010
10(0.35)
723141020
20 (0.71)
723141030
30 (1.06)
723141040
40 (1.41)
723141050
50 (1.76)
723141060
60 (2.12)
723141070
5 (0.18)
723141080
15 (0.53)
723141090
25 (0.88)
723141100
35 (1.23)
723141110
45 (1.59)
723141220
55 (1.94)
Allowable dynamic unbalance:
6 g (0.21 oz) at rim flange
Parts No. for
aluminum wheel
23141GA470
23141GA490
23141GA510
23141GA530
23141GA550
23141GA570
23141GA460
23141GA480
23141GA500
23141GA520
23141 GA540
Installation of Wheel Assembly to vehicle
1) Attach the wheel to the hub by aligning the wheel bolt
hole with the hub bolt.
2) Temporarily attach the wheel nuts to the hub bolts.
(In the case of aluminum wheel, use SUBARU genuine wheel
nut for aluminum wheeL)
3) Manually tighten the nuts making sure the wheel hub hole
is aligned correctly to the guide portion of hub.
4) Tighten the wheel nuts in a diagonal selection to the
specified torque. Use a wheel nut wrench.
Wheel nut tightening torque:
78 - 98 N'm (8 - 10 kg-m, 58 - 72 ft-Ib)