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mounting, take a close look at both
the wheel’s hub face and the vehi-
cle’s hub face itself. In the case of
Toyota wheels, the wheel centering
hole is precisely machined to fit the
hub center flange lip.
If an aftermarket alloy wheel is to
be used, a hub-centric ring adapter
may be required in order to attain a
proper fit, since the aftermarket
wheel may feature a larger center
hole (which makes the wheel adapt-
able to various hub center fitments).
When adapter rings have been
used on the vehicle in the past, it is
possible that an old adapter ring
has stuck to the hub. If this ring is
not the correct size for the wheel
being installed, the wheel may not
be able to seat flush against the hub.
This is sometimes easy to miss, so
always check the hub face flange
diameter and the diameter of the
wheel’s hub face to make sure they
match before installing the wheels.
The wheel must fit flush against
the hub, and the wheel must be
centered on the hub. If the wheel
requires rings and none are used,
you’ll have an off-center installation.
Caution, if wheel spacers are used,
make sure they don’t effect the
wheel track and/or the number of
threads on the wheel studs. If old
rings are stuck to the hub, but the
new wheels don’t need them, or if
you try to double-up old rings that
are stuck to the hub and new rings
on the wheels, the wheels won’t
mate flush to the hub, which will
cause severe axial runout. Always
check closely.
NOTE: If the aftermarket wheels
that the customer has chosen include
hubcentric ring adapters (these may
be either aluminum or plastic), be
sure to use them. Even if you feel that
the fasteners will center the wheel, the
rings provide a closer-tolerance fit to
the hub center and will allow you to
better center the wheel during fasten-
er tightening.
INSTALLING ALLOY WHEELS
12
A corrosive (electrolysis) reaction can occur between an alloy wheel
and a steel hub, resulting in future wheel removal difficulty. To avoid
this, first clean the hub and wheel, and apply a thin coating of a
high-temperature anti-seize paste onto the hub surface.
Always follow the proper torque sequence and torque values when
installing the wheels. The objective when tightening is to evenly
spread the clamping loads across the bolt circle pattern, to avoid
isolated and excessive loading. Failure to follow the correct tight-
ening sequence can lead to distortion of the wheel and hub/rotor.
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