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(2
05)
CHASSIS SUSPENSION
R
E B O U N D
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YUNO" :
SERVICE RECOMMENDATIONS
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GASKET
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CYLINDER
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REBOUND VALVE
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GASKET
6-7
Figure 6-7-Rear Shock Absorber-Sectional View
6-7
W
HEELS
AND TIRES
a. Wheels
Whe
els
are demountable disc type with the
rim welded to wheel disc to form a unit
assem-
bly. The wheels have wide drop center type
r
ims
designed to
give
ample support for the
tire sizes used as standard equipment . The rims
have tapered tire bead
seats
which cause tire
beads to wedge
tightly
in
place
when
ti
re s
are
inflated.
b.
Tire s and Tubes
Tires on all models are low pressure balloon
t
ype,
made of a combination of synthetic and
natur al
rubber. Tubes are made of
synthetic
rubber ,
which
has the
advantage
of
holding ai
r
pressure somewhat
better than natural r
ubber.
Standard
product ion tire sizes are given in
paragraph 6-1 (d)
.
All tires and tubes used as standard factory
equipment have been worked out with the
tire
manufacturer for
stability. This does
not im ply
that other makes and
types
of
tires
and
tubes
are
not suitable for Buick
cars ,
but
owin g to
the larg
e number
of tire and tub
e
makes
and
desi
gns it
is
im possi ble for
ride and handlin g
calibra ti ons to
be worked
out f
or
each
one.
Tires other than
those
us
ed
as standard
equipment ma
y
cause a
wander.
Larger
tires
will reduce clearance at f
end ers
and
be
difficult
to mount in spare carriers. Tires with
more
plys may cause hard
riding.
Some
types
of
"puncture proof"
tubes
are
difficult to
balance
and
may
cause
"tramp."
6-8
SERVICE
RECOMMENDATIONS-
CHASSIS
SUSPENSION
Barring
accident
or rough handling that
af-
fects
wheel
alignment, the chassis
suspension
r
equires
no attention
other than the
items
specified under Lubricare
Instructions (pa r.
1-1). The following
additional services per-
taining t
o
t
ires
will insu
r e maximum
tire life
and bring to
attention any out
of lin
e
condition
affecting the
tires.
a. Tire Inflation
Maintenance of
cor rect
inflation pressure
in
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