CHRYSLER SERVICE MANUAL
WHEELS AND TIRES—3
Section XIII
WHEELS
AND
TIRES
WHEELS
1.
SAFETY RIM WHEELS
The wheel rim incorporates a special safety-
feature to give added protection in case of a
blowout or rapid deflation of the tire while
the car is in motion. It is a raised section be-
tween the rim flange and the rim well, as
shown in "A" of Figure 1. Inflation of the tire
snaps the tire bead over this raised section and
out against the flange. The force required to
pull the bead back over this raised portion tends
to keep the tire out against the flange even
though rapid deflation occurs.
2.
TIGHTENING WHEEL HUB NUTS
Tighten wheel hub nuts evenly while tire is
off ground. Lower tire to ground to tighten nuts
securely. Make sure these nuts are tight.
3.
CHECKING WHEELS FOR ECCENTRICITY
Dismount tire and test with wheel mounted on
brake drum. Position dial indicator on firm sur-
face to prevent deflection. With the anvil of
indicator bearing on the inner tire bead sur-
face of wheel, as shown in Figure 2 slowly
rotate wheel and note the total runout. Mark
high and low spots and the amount on wheel.
If radial runout of wheel exceeds .045 inch,
replace the wheel.
NOTE: Do not check runout on outside of
wheel rim since this method can easily give a
false reading.
4.
CHECKING WHEEL FOR WOBBLE
(LATERAL RUNOUT)
Before checking a wheel or wobble (lateral
runout), make sure tire is properly mounted.
Mount a dial indicator on firm base, with an-
vil of indicator resting against the flange of
wheel. Rotate the wheel. If lateral runout is
more than i/g inch. (.125), straighten or
replace wheel.
5.
BALANCING WHEEL AND
TIRE ASSEMBLIES
Proper balance of wheel and tire assemblies
promotes smooth steering action and is a safe-
guard against vibration and front end shake.
To check front wheels for balance, place jack
under center of front of car and raise both
INNER
SURFACE
OUTER
SURFACE
TOTAL RUNOUT
MUST
NOT
EXCEED
.045'
55x115
54
x
364A
Fig.
1—Safety
Type
Rim
Fig.
2—If
Radial Runout Exceeds
.045
inch,
replace Wheel
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