Jeep XJ. Manual — part 11
SPECIFICATIONS
TORQUE CHART
DESCRIPTION
TORQUE
Shock Absorber
Upper Nut . . . . . . . . . . . . . . . 22 N·m (16 ft. lbs.)
Lower Nut . . . . . . . . . . . . . . . 23 N·m (17 ft. lbs.)
Suspension Arm Upper
Front Nut . . . . . . . . . . . . . . . 74 N·m (55 ft. lbs.)
Rear Nut . . . . . . . . . . . . . . . . 89 N·m (66 ft. lbs.)
Suspension Arm Lower
Front Nut . . . . . . . . . . . . . . . 115 N·m (85 ft. lbs.)
Rear Nut . . . . . . . . . . . . . . . 115 N·m (85 ft. lbs.)
Stabilizer Bar
Clamp Bolt . . . . . . . . . . . . . . . 54 N·m (40 ft. lbs.)
Link Upper Nut . . . . . . . . . . . 36 N·m (27 ft. lbs.)
Link Lower Nut . . . . . . . . . . . 95 N·m (70 ft. lbs.)
Track Bar
Ball Stud Nut . . . . . . . . . . . . 81 N·m (60 ft. lbs.)
Axle Bracket Bolt . . . . . . . . . . 54 N·m (40 ft. lbs.)
Fig. 8 Hub Bearing & Knuckle
1 – BRAKE SHIELD
2 – WASHER
3 – RETAINER
4 – COTTER PIN
5 – NUT
6 – HUB AND BEARING ASSEMBLY
7 – STEERING KNUCKLE
8 – BOLT
9 – TONE WHEEL (ABS)
Fig. 9 Wheel Stud Removal
1 – REMOVER
2 – WHEEL STUD
2 - 14
SUSPENSION
XJ
REMOVAL AND INSTALLATION (Continued)
DESCRIPTION
TORQUE
Track Bar Bracket
Bolts . . . . . . . . . . . . . . . . . . 125 N·m (92 ft. lbs.)
Nut . . . . . . . . . . . . . . . . . . . 100 N·m (74 ft. lbs.)
Support Bolts . . . . . . . . . . . . . 42 N·m (31 ft. lbs.)
Hub/Bearing
Bolts . . . . . . . . . . . . . . . . . . 102 N·m (75 ft. lbs.)
Axle Nut . . . . . . . . . . . . . . 237 N·m (175 ft. lbs.)
SPECIAL TOOLS
FRONT SUSPENSION
Remover/Installer Suspension Bushing 7932
Nut, Long 7603
Bolt, Special 7604
Remover C-4150A
XJ
SUSPENSION
2 - 15
SPECIFICATIONS (Continued)
REAR SUSPENSION
TABLE OF CONTENTS
page
page
DESCRIPTION AND OPERATION
DIAGNOSIS AND TESTING
SPRING AND SHOCK . . . . . . . . . . . . . . . . . . . . . 17
REMOVAL AND INSTALLATION
SHOCK ABSORBER. . . . . . . . . . . . . . . . . . . . . . . 17
STABILIZER BAR . . . . . . . . . . . . . . . . . . . . . . . . . 17
LEAF SPRING . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
LEAF SPRING AND SHACKLE BUSHING. . . . . . . 18
SPECIFICATIONS
TORQUE CHART . . . . . . . . . . . . . . . . . . . . . . . . . 19
DESCRIPTION AND OPERATION
SUSPENSION COMPONENT
The rear suspension is comprised of:
• Shock Absorbers
• Jounce Bumpers
• Stabilizer Bar (optional)
• Leaf Springs
• Drive Axle
CAUTION: A vehicle should always be loaded so
the vehicle weight center-line is located immedi-
ately forward of the rear axle. Correct vehicle load-
ing provides proper front tire-to-road contact. This
results in maximum vehicle handling stability and
safety. Incorrect vehicle weight distribution can
cause excessive tire tread wear, spring fatigue or
failure, and erratic steering.
CAUTION: Suspension components with rubber/
urethane bushings (except stabilizer bar) should be
tightened with the vehicle at normal ride height. It is
important to have the springs supporting the weight
of the vehicle when the fasteners are torqued. If
springs are not at their normal ride position, vehicle
ride comfort could be affected and premature bush-
ing wear may occur.
SHOCK ABSORBERS
DESCRIPTION
The top of the shock absorbers are bolted to the
body crossmember. The bottom of the shocks are
bolted to the axle brackets.
OPERATION
The shock absorbers dampen jounce and rebound
motion of the vehicle over various road conditions
and limit suspension rebound travel.
JOUNCE BUMPERS
DESCRIPTION
The jounce bumpers are bolted to the bottom of the
frame rail.
OPERATION
The jounce bumpers are used to limit suspension
travel in compression.
STABILIZER BAR
DESCRIPTION
The spring steel bar extends across the axle and
mounts to leaf spring brackets. Links are connected
from the bar to the underside of the frame rail. The
stabilizer bar and links are isolated by rubber bush-
ings.
OPERATION
The stabilizer bar is used to control vehicle body
roll during turns. The bar helps to control the vehicle
body in relationship to the suspension.
COIL SPRINGS AND ISOLATORS
DESCRIPTION
The front of the multi-leaf springs mount to frame
rail brackets. The rear of the spring mounts to shack-
les which mount the frame. The springs and shackles
have bushing at the mounting points.
2 - 16
SUSPENSION
XJ
OPERATION
The leaf springs control ride quality and maintain
proper ride height. The shackles allow the springs to
change their length as the vehicle moves over various
road conditions. The bushings are used to isolate
axle/road noise.
DIAGNOSIS AND TESTING
SPRING AND SHOCK
A knocking or rattling noise from a shock absorber
may be caused by movement between mounting
bushings and metal brackets or attaching compo-
nents. These noises can usually be stopped by tight-
ening the attaching nuts. If the noise persists,
inspect for damaged and worn bushings, and attach-
ing components. Repair as necessary if any of these
conditions exist.
A squeaking noise from the shock absorber may be
caused by the hydraulic valving and may be intermit-
tent. This condition is not repairable and the shock
absorber must be replaced.
The shock absorbers are not refillable or adjust-
able. If a malfunction occurs, the shock absorber
must be replaced. To test a shock absorber, hold it in
an upright position and force the piston in and out of
the cylinder four or five times. The action throughout
each stroke should be smooth and even.
The spring eye and shock absorber bushings do not
require any type of lubrication. Do not attempt to
stop spring bushing noise by lubricating them.
Grease and mineral oil-base lubricants will deterio-
rate the bushing rubber.
If the vehicle is used for severe, off-road operation,
the springs should be examined periodically. Check
for broken and shifted leafs, loose and missing clips,
and broken center bolts. Refer to Spring and Shock
Absorber Diagnosis chart for additional information.
SPRING AND SHOCK ABSORBER
CONDITION
POSSIBLE CAUSES
CORRECTION
SPRING SAGS
1. Broken leaf.
1. Replace spring.
2. Spring fatigue.
2. Replace spring.
SPRING NOISE
1. Loose spring clamp bolts.
1. Tighten to specification.
2. Worn bushings.
2. Replace bushings.
3. Worn or missing spring tip inserts.
3. Replace spring tip inserts.
SHOCK NOISE
1. Loose mounting fastener.
1. Tighten to specification.
2. Worn bushings.
2. Replace shock.
3. Leaking shock.
3. Replace shock.
REMOVAL AND INSTALLATION
SHOCK ABSORBER
REMOVAL
(1) Remove the shock absorber upper bolts from
the body bracket (Fig. 1).
(2) Remove lower attaching nut and washer from
the bracket stud. Remove the shock absorber.
INSTALLATION
(1) Install the shock absorber lower eye on the
spring bracket stud. Install the shock absorber and
upper bolts on the body bracket.
(2) Tighten the lower nut to 62 N·m (46 ft. lbs.).
(3) Tighten the upper bolts to 23 N·m (17 ft. lbs.).
STABILIZER BAR
REMOVAL
(1) Raise and support the vehicle.
(2) Disconnect stabilizer bar links from spring
brackets (Fig. 2).
(3) Disconnect the stabilizer bar brackets from the
body rails. Remove the stabilizer bar and links.
INSTALLATION
(1) Position the stabilizer bar links at the spring
brackets. Install the attaching bolts and nuts and
tighten to 74 N·m (55 ft. lbs.).
(2) Attach the stabilizer bar to the body rail brack-
ets with the bolts. Tighten to 54 N·m (40 ft. lbs.).
(3) Remove the supports and lower the vehicle.
XJ
SUSPENSION
2 - 17
DESCRIPTION AND OPERATION (Continued)
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст