Dodge Viper SRT-10 (ZB). Manual — part 24
INCLINOMETER INSTALLATION ON REAR KNUCKLES
(1) Clean any dirt or debris off knuckles paying
special attention to caster pads on trailing end of
knuckles near ball joints.
NOTE: Do not attach inclinometers to rear Adapters
before Adapter installation on vehicle. If attached,
they cannot be installed or removed with rear
wheels on vehicle.
(2) Insert each Caster Angle Adapter (without
inclinometer attached), Special Tool 8996, through
opening between upper control arm and toe link.
Position Adapter lower spring-loaded hook over lower
ball joint machined casting and upper spring-loaded
hook around upper ball joint nut, then stretch
bracket rearward, placing Adapter flats against
caster pads cast into trailing side of knuckle (Fig.
20).
(3) Mount inclinometers to rear Caster Angle
Adapters (Fig. 20) (Fig. 21). Make sure inclinometer
from left side of Switch Box is mounted to left
adapter and inclinometer from right side of Switch
Box is mounted to right adapter. To make sure each
inclinometer is mounted right-side-up on Adapter,
upper mounting screw is larger diameter than lower.
Fig. 20 Inclinometer Installed On Right Rear Knuckle (Left Side Typical)
1 - UPPER SPRING-LOADED HOOK
2 - CASTER PAD
3 - INCLINOMETER 6989
4 - PARKING BRAKE CALIPER
5 - ADAPTER 8996
6 - CASTER PAD
7 - LOWER SPRING-LOADED HOOK
8 - BRAKE CALIPER
Fig. 21 Right Rear Caster Adapter With Inclinometer
(Left Side Typical)
1 - UPPER SPRING-LOADED HOOK
2 - INCLINOMETER 6989
3 - LOWER SPRING-LOADED HOOK
2 - 70
WHEEL ALIGNMENT
ZB
WHEEL ALIGNMENT (Continued)
(4) Adjust caster using measurements viewed on
DRBIII screen, and camber using measurements
viewed on wheel alignment equipment. (Refer to 2 -
SUSPENSION/WHEEL ALIGNMENT - SPECIFICA-
TIONS)
(5) When
adjustments
are
complete,
remove
Adapters/Inclinometers.
FRONT AND REAR TOE
Static toe position should be the final adjustment
made to the vehicle during the alignment procedure.
Adjusting rear toe first is recommended.
NOTE: It is recommended to leave the engine run-
ning during the front wheel toe setting procedure to
ease centering of the wheel.
(1) Start engine and turn wheels in both directions
before straightening and centering steering wheel.
Center steering wheel and retain with steering wheel
clamp. Leave engine running.
REAR TOE
NOTE: Repeat the following procedure at each rear
corner of the vehicle as necessary.
(1) Loosen tie rod jam nut (Fig. 22).
(2) Grasp toe link at adjustment serration (Fig.
22). Rotate toe link in direction required to obtain
specified individual wheel toe position. (Refer to 2 -
SUSPENSION/WHEEL ALIGNMENT - SPECIFICA-
TIONS)
(3) Tighten and torque tie rod jam nut to 75 N·m
(55 ft. lbs.).
FRONT TOE
NOTE: Repeat the following procedure at each front
corner of the vehicle as necessary.
(1) Remove clamp from end of steering gear boot
where it contacts inner tie rod.
(2) Loosen tie rod jam nut (Fig. 22).
(3) Grasp inner tie rod at adjustment serration
(Fig. 22). Rotate inner tie rod in direction required to
obtain specified individual wheel toe position. (Refer
to 2 - SUSPENSION/WHEEL ALIGNMENT - SPEC-
IFICATIONS)
(4) Tighten and torque tie rod jam nut (Fig. 22) to
75 N·m (55 ft. lbs.).
(5) Remove any twist in steering gear inner tie rod
boot caused by rotating inner tie rod. Install clamp
where previously removed.
(2) Remove steering wheel clamp.
(3) Remove all alignment equipment from vehicle.
(4) Remove Caster Angle Adapters/Inclinometers
from front or rear knuckles.
(5) Install belly pan. (Refer to 23 - BODY/EXTERI-
OR/BELLY PAN - INSTALLATION)
(6) Remove ballast weight from vehicle allowing
vehicle to return to curb height.
ADJUSTMENTS - DYNAMIC TOE PATTERN
This vehicle’s suspension system is designed to
vary the wheel toe pattern according to the vehicle
ride posture to keep the wheels pointed in the proper
direction at all times. The four wheel independent
suspension alignment must be correct to assure
proper road handling. The frame and suspension
components are calibrated at the assembly plant and
should not require adjustment unless the vehicle has
collision damage. This section will cover procedures
for correcting improper frame, steering gear, and rear
toe link alignment that would affect the wheel toe
pattern.
Wheel toe pattern is regulated by the vertical posi-
tioning of the inner tie rod pivot in relation to the
orbital swing of the wheel spindle (Fig. 23). Wheel
toe settings have no effect on toe pattern. When the
suspension is fully compressed and then extended
with the tie rod disconnected from the spindle, the
spindle makes an arc in space without altering the
toe pattern. When the arc of the spindle is extended
into a full circle and the inner tie rod end is posi-
tioned in the center of the circle, the toe pattern can-
not change. When the inner tie rod is raised or
lowered from the center of the true circle of the spin-
dle arc, the toe pattern will vary. When the suspen-
sion is compressed (jounce), the wheel toe should
change from normal riding height. When the suspen-
Fig. 22 Static Wheel Toe Position Adjustment
(Typical)
1 - ADJUSTMENT SERRATION
2 - OUTER TIE ROD
3 - JAM NUT
4 - INNER TIE ROD
ZB
WHEEL ALIGNMENT
2 - 71
WHEEL ALIGNMENT (Continued)
sion is extended (rebound), wheel toe should move in
the
opposite
direction.
Front
suspension
jounce
should cause the wheels to toe out; rebound should
cause the wheels to toe in. Rear suspension jounce
should cause the wheels to toe in; rebound should
cause the wheels to toe out.
TOE PATTERN PREPARATION
Before toe pattern can be inspected, vehicle design
height, suspension settings and design bushing posi-
tion must be established.
(1) Verify that all fluid reservoirs and fuel tank is
full.
(2) Position the vehicle on a known level surface
(suspension or frame alignment rack).
(3) Remove all objects from the vehicle that were
not installed at the assembly plant.
(4) Inflate tires to the specification found on the
tire inflation sticker (placard) on the left door end
frame.
(5) Place vehicle on wheel alignment rack/hoist.
(6) Remove belly pan from frame. (Refer to 23 -
BODY/EXTERIOR/BELLY PAN - REMOVAL)
(7) Verify vehicle design height, caster, and camber
are within specifications and toe is set to Preferred
Specifications. (Refer to 2 - SUSPENSION/WHEEL
ALIGNMENT - STANDARD PROCEDURE).
TOE PATTERN MEASUREMENT
NOTE: Toe Pattern Preparation procedure must be
performed before Toe Pattern Measurement.
(1) Raise vehicle by frame (near PLP holes (Fig.
12) (Fig. 13), but allowing room for Suspension
Height Gages, Special Tools 6914 and 8897, installa-
tion later).
(2) Remove all four wheels.
(3) Disconnect front and rear stabilizer bar links
from lower control arms. (Refer to 2 - SUSPENSION/
FRONT/STABILIZER LINK - REMOVAL) (Refer to 2
-
SUSPENSION/REAR/STABILIZER
LINK
-
REMOVAL)
(4) Remove front and rear coil-over-shock assem-
blies. (Refer to 2 - SUSPENSION/FRONT/SHOCK -
REMOVAL)
(Refer
to
2
-
SUSPENSION/REAR/
SHOCK - REMOVAL)
(5) Install wheels.
(6) Install Suspension Height Gages, Special Tools
6914 and 8897, and lower vehicle to design height.
(Refer to 2 - SUSPENSION/WHEEL ALIGNMENT -
STANDARD
PROCEDURE
-
DESIGN
HEIGHT
MEASUREMENT)
(7) With vehicle at design height, measure and
record front and rear toe at each wheel.
(8) Raise front and rear of vehicle 25 mm (1 in.)
above design height (Rebound). Measure and record
front and rear toe at each wheel.
(9) Raise front and rear of vehicle 50 mm (2 in.)
above design height (Rebound). Measure and record
front and rear toe at each wheel.
(10) Return vehicle to design height.
(11) Lower front and rear of vehicle 25 mm (1 in.)
below design height (Jounce). Measure and record
front and rear toe at each wheel.
(12) Lower front and rear of vehicle 50 mm (2 in.)
below design height (Jounce). Measure and record
front and rear toe at each wheel.
NOTE: It may not be possible to obtain a wheel toe
reading with the vehicle lowered 50 mm (2 in.)
below design. If not, measure at nearest attainable
millimeter mark and record as such. It can be drawn
in on Dynamic Toe Pattern Graph and used along
with other plotted readings from other height set-
tings to determine toe pattern arc.
NOTE: Design Arc and Range guidelines (specifica-
tions) printed in Dynamic Toe Pattern Graph are for
each individual wheel. Recorded measurements
plotted on graph should also be drawn in per
wheel.
(13) Plot toe readings for front suspension on
Dynamic Toe Pattern Graph provided in this section
(Fig. 24). If toe pattern arc is within allotted range,
front toe pattern is within limits. If toe pattern is not
within allotted range, steering gear must be raised or
lowered to achieve proper toe pattern.
Fig. 23 Wheel Spindle Arc
1 - ORBITAL SWING OF WHEEL SPINDLE
2 - OUTER TIE ROD PIVOT
3 - INNER TIE ROD PIVOT
4 - LOWERED CENTER
5 - CENTER OF RADIUS
6 - RAISED CENTER
2 - 72
WHEEL ALIGNMENT
ZB
WHEEL ALIGNMENT (Continued)
(14) Plot toe readings for rear suspension on
Dynamic Toe Pattern Graph provided in this section
(Fig. 24). If toe pattern arc is within allotted range,
rear toe pattern is within limits. If toe pattern is not
within allotted range, toe links must be raised or
lowered to achieve proper toe pattern.
TOE PATTERN ADJUSTMENT
Once both front and rear toe pattern arcs have
been plotted, compare each with the corresponding
Design Arc and Range shown in the graph. If either
plotted arc falls outside the allotted range at any
point, toe pattern adjustment is necessary.
If the front toe pattern requires adjustment, the
steering gear can be raised using split shims. If the
steering gear must be lowered, the gear mounts are
misaligned and will require alignment.
If the rear toe pattern requires adjustment, the
rear toe links can be raised or lowered using toe link
shims. The rear toe links are mounted to the frame
in vertical elongated holes that allow the toe link to
be moved up or down. Toe link shims in increments
of 2 mm (0.080 in.) above or below design (nominal)
are used to position the toe link.
A 2 mm (0.080 in.) change in steering gear or toe
link height will effect the toe pattern by about 0.15
degrees when measured from the design height (nom-
inal) to either jounce or rebound positions. It is typ-
ical for a shim to have about 1 mm (0.040 in.) up and
down play.
FRONT TOE PATTERN
On the front of the vehicle, the tie rods are located
in front of the spindles. If the steering gear is raised,
toe-in will increase on rebound and toe-out will
increase on jounce. If the steering gear is lowered,
the opposite will occur. For information on steering
gear mounting, (Refer to 19 - STEERING/GEAR -
REMOVAL).
REAR TOE PATTERN
On the rear of the vehicle, the tie rods (toe links)
are located rearward of the spindles. If a toe link is
raised, toe-out will increase on rebound and toe-in
will increase on jounce. If a toe link is lowered, the
opposite will occur. For information on toe link
mounting, (Refer to 2 - SUSPENSION/REAR/TOE
LINK - REMOVAL).
SUSPENSION COMPONENT INSTALLATION
After toe pattern has been measured and any nec-
essary adjustments made, perform the following:
(1) Install coil-over-shock assemblies. (Refer to 2 -
SUSPENSION/FRONT/SHOCK - INSTALLATION),
(Refer
to
2
-
SUSPENSION/REAR/SHOCK
-
INSTALLATION)
(2) Connect stabilizer bar links to lower control
arms. (Refer to 2 - SUSPENSION/FRONT/STABI-
LIZER LINK - INSTALLATION) (Refer to 2 - SUS-
PENSION/REAR/STABILIZER
LINK
-
INSTALLATION)
(3) Verify and adjust wheel alignment toe settings
as necessary. (Refer to 2 - SUSPENSION/WHEEL
ALIGNMENT - STANDARD PROCEDURE)
(4) Install belly pan. (Refer to 23 - BODY/EXTERI-
OR/BELLY PAN - INSTALLATION)
(5) Road test vehicle to determine if condition is
corrected.
ZB
WHEEL ALIGNMENT
2 - 73
WHEEL ALIGNMENT (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст