Dodge Viper SRT-10 (ZB). Manual - part 226

STANDARD PROCEDURE

TIRE INFLATION PRESSURES

WARNING: OVER OR UNDER INFLATED TIRES CAN
AFFECT VEHICLE HANDLING. THE TIRE CAN FAIL
SUDDENLY, RESULTING IN LOSS OF VEHICLE
CONTROL.

Under inflation causes rapid shoulder wear, tire

flexing, and can result in tire failure (Fig. 23).

Over inflation causes rapid center wear and loss of

the tire’s ability to cushion shocks (Fig. 24).

Improper inflation can cause:
• Uneven wear patterns

• Reduced tread life

• Reduced fuel economy

• Unsatisfactory ride

• The vehicle to drift.
For proper tire pressure specification refer to the

Tire Inflation Pressure Chart Placard provided with
the vehicle.

Tire pressures have been chosen to provide safe

operation, vehicle stability, and a smooth ride. Tire
pressure should be checked cold once per month.
Check tire pressure more frequently when the
weather temperature varies widely. Tire pressure will
decrease when the outdoor temperature drops.

Inflation pressures specified on the placard is

always the cold inflation pressure of the tire. Cold
inflation pressure is obtained if the vehicle has not
been operated for at least 3 hours, or if the vehicle is
driven less than one mile after being inoperative for
3 hours. Tire inflation pressures may increase from 2
to 6 pounds per square inch (psi) during operation.
Do not reduce this normal pressure build-up.

TIRE PRESSURE FOR HIGH SPEED
OPERATION

WARNING: OVER OR UNDER INFLATED TIRES CAN
AFFECT VEHICLE HANDLING. THE TIRE CAN FAIL
SUDDENLY, RESULTING IN LOSS OF VEHICLE
CONTROL.

DaimlerChrysler

Corporation

advocates

driving

this vehicle at safe speeds and within the posted
speed limits. Where speed limits allow the vehicle to
be driven at high speeds, the correct tire inflation
pressure is very important. For speeds up to and
including 120 km/h (75 mph), tires must be inflated
to the pressures shown on the label applied to the
rear facing of the driver’s door. For continuous speeds
in excess of 120 km/h (75 mph), tires must be
inflated to the maximum pressure specified on the
tire’s sidewall.

TIRE LEAK REPAIRING

For proper repairing, a radial tire must be removed

from the wheel and repaired (patched) from the
inside of the tire. Repairs should only be made if the
defect, or puncture, is in the tread area (Fig. 25) of
the tire. The tire should be replaced if the puncture
is located in the sidewall.

Deflate tire completely before dismounting the tire

from the wheel. Use a lubricant such as a mild soap
solution when dismounting or mounting the tire.
When dismounting the tire from the rim, only use
tools free of burrs or sharp edges which could dam-
age the tire or the wheel.

Before mounting the tire on the wheel, make sure

all dirt and/or oxidation is removed from the bead of
the wheel.

Fig. 23 Under Inflation Wear

1 - THIN TIRE THREAD AREAS

Fig. 24 Over Inflation Wear

1 - THIN TIRE THREAD AREA

22 - 16

TIRES/WHEELS

TIRES (Continued)

Install the wheel and tire on the vehicle, and pro-

gressively tighten all 6 wheel nuts to a torque of 122
N·m (90 ft. lbs.).

SPECIFICATIONS

TIRES

MANUFACTURER AND MODEL:

Michelin

Pilot SPORT Zero Pres-
sure

TIRE SIZES:

Front

275/35 ZR 18

Rear

345/30 ZR 19

WHEELS

DESCRIPTION - WHEEL

The original equipment wheels used are designed

specifically for this vehicle. Two different wheels are
used, front and rear. Front wheels have an 18 inch
diameter and are 10 inches wide. Rear wheels have a
19 inch diameter and are 13 inches wide.

CAUTION: The front and rear wheels used on this
vehicle are not interchangeable. Do not attempt to
place the front wheels on the rear or vise-versa.

All the road wheels used on this vehicle are forged

and polished aluminum, one piece wheels. Each
wheel (Fig. 26) has raised sections between the rim
flanges and the rim well called safety humps.

Initial inflation of the tire forces the bead over

these raised sections. In case of tire failure the raised
sections help hold the tire in position on the wheel
until the vehicle can be brought to a safe stop.

The cast aluminum wheels used on this vehicle

require the use of special balance weights.

DIAGNOSIS AND TESTING - WHEEL
INSPECTION

The wheels should be inspected on a frequent

basis. Inspect the wheels for:

• Air leaks

• Broken welds

• Cracks, dents or bends

• Damaged bolt holes

• Excessive runout
If any of the above conditions are present, the

wheel(s) must be replaced. Wheel repairs employing
hammering, heating, welding or the repairing of
leaks are not allowed.

To check wheel runout, (Refer to 22 - TIRES/

WHEELS - DIAGNOSIS AND TESTING).

WARNING:

FAILURE

USE

EQUIVALENT

REPLACEMENT

WHEELS

MAY

ADVERSELY

AFFECT THE SAFETY AND HANDLING OF THE
VEHICLE. REPLACEMENT WITH USED WHEELS IS
NOT RECOMMENDED. THE SERVICE HISTORY OF
THE WHEEL MAY HAVE INCLUDED SEVERE TREAT-
MENT OR VERY HIGH MILEAGE. THE WHEEL
COULD FAIL WITHOUT WARNING.

Fig. 25 Tire Repair Area

1 - REPAIRABLE AREA

Fig. 26 Safety Rim

1 - TIRE
2 - WELL
3 - SAFETY HUMPS
4 - FLANGE

TIRES/WHEELS

22 - 17

TIRES (Continued)

Original equipment replacement wheels for this

vehicle are available through your dealer and should
always be used if a wheel requires replacement. If a
replacement wheel is obtained through a source other
than a dealer, the wheel must be equivalent in load
carrying capacity. The physical dimensions (diameter,
width, offset, and bolt circle) of the wheel must also
be the same as the original wheel.

The tire inflation valve on the wheel should also be

inspected frequently for wear, leaks, cuts, and loose-
ness. It should be replaced if defective or its condi-
tion is doubtful.

CLEANING - ALUMINUM WHEEL CARE

Aluminum wheels should be cleaned regularly

using mild soap and water to maintain their luster
and to prevent corrosion.

Care must be taken in the selection of tire and

wheel cleaning chemicals and equipment to prevent
damage to the wheels. Any of the “DO NOT USE”
items listed below WILL damage polished and clear-
coated aluminum wheels.

DO NOT USE:
• any abrasive metal cleaner

• any abrasive cleaning pad or brush

• any cleaner that contains an acid (this will

immediately react with and discolor the chromium
surface)

• chrome polish

• oven cleaner

• a car wash that uses carbide-tipped wheel clean-

ing brushes

SPECIFICATIONS

WHEELS

Front Wheel Size

18 inch x 10 inch

Rear Wheel Size

19 inch x 13 inch

Mounting Stud Size

1/2–20 UNF

Mounting (Lug) Nut Hex
Size

19 mm

Mounting (Lug) Nut
Torque

122 N·m (90 ft. lbs.)

WHEEL MOUNTING STUDS -
FRONT

REMOVAL

NOTE: Review all Warnings and Cautions. (Refer to
2 - SUSPENSION - WARNING)

CAUTION: If a wheel mounting stud needs to be
replaced in the hub and bearing assembly, DO NOT
hammer it out of the hub flange. If a stud is
removed by hammering it out of the bearing flange,
damage to the hub and bearing assembly can
occur, leading to premature bearing failure. Please
use the following procedure.

(1) Remove the front hub and bearing assembly.

(Refer to 2 - SUSPENSION/FRONT/HUB / BEAR-
ING - REMOVAL)

(2) If possible, install a standard type wheel

mounting nut on the wheel stud to be removed just
far enough so the threads on the outer end of the nut
are even with outer end of the stud (Fig. 27).

(3) Install Remover, Special Tool C-4150A, on the

hub/bearing flange and wheel stud as shown (Fig.
27).

(4) Tighten down the special tool bolt; this will

push the wheel stud out of the hub flange. Remove
the tool, nut and stud.

Fig. 27 Wheel Mounting Stud Removal

1 - REMOVER C-4150A
2 - WHEEL MOUNTING NUT ON END OF STUD

22 - 18

TIRES/WHEELS

WHEELS (Continued)

INSTALLATION

(1) Install the replacement wheel mounting stud

through rear of hub/bearing flange. Install a stack of
washers approximately 1/2 inch (13 mm) thick on the
stud, then install a standard type wheel mounting
nut with its flat side toward the washers (Fig. 28).

(2) Tighten the wheel mounting nut, pulling the

wheel stud into the flange of the hub/bearing. Once
the head of the stud is fully seated against the rear
of the flange, remove the nut and washers from the
stud.

(3) Install the hub and bearing assembly on the

vehicle. (Refer to 2 - SUSPENSION/FRONT/HUB /
BEARING - INSTALLATION)

WHEEL MOUNTING STUDS -
REAR

REMOVAL

NOTE: Review all Warnings and Cautions (Refer to
2 - SUSPENSION - WARNING).

(1) Remove the rear hub and bearing assembly.

(Refer to 2 - SUSPENSION/REAR/HUB / BEARING -
REMOVAL)

(2) If possible, install a standard type wheel

mounting nut on the wheel stud to be removed just
far enough so the threads on the outer end of the nut
are even with outer end of the stud (Fig. 27).

(3) Install Remover, Special Tool C-4150A, on the

hub/bearing flange and wheel stud as shown (Fig.
27).

(4) Tighten down the special tool bolt; this will

push the wheel stud out of the hub flange. Remove
the tool, nut and stud.

INSTALLATION

(1) Install the replacement wheel mounting stud

(2) Tighten the wheel mounting nut, pulling the

wheel stud into the flange of the hub/bearing. Once
the head of the stud is fully seated against the rear
of the flange, remove the nut and washers from the
stud.

(3) Install the hub and bearing assembly on the

vehicle. (Refer to 2 - SUSPENSION/REAR/HUB /
BEARING - INSTALLATION)

Fig. 28 Wheel Mounting Stud Installation

1 - STACK OF WASHERS
2 - WHEEL MOUNTING STUD
3 - INVERTED WHEEL MOUNTING NUT

TIRES/WHEELS

22 - 19

WHEEL MOUNTING STUDS - FRONT (Continued)

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