Front suspension ISUZU KB P190 2007 Workshop Owner's Manual

3C-6 FRONT SUSPENSION
FRONT SUSPENSION
GENERAL DESCRIPTION
4×
××
×
2 (Except High Ride Suspension) Model





BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

FRONT SUSPENSION 3C-7
4×
××
×
2 (High Ride Suspension) and 4 ×
××
×
4 Model
RTW 340LF000801
The links attach to the vehicle with bolts and bushings
at their inner pivot points and to the steering knuckle,
which is part of the front wheel spindle, at their outer
points.
The knuckle is mounted to the upper and lower links
each of which has a ball joint to permit pivoting of the
knuckle for steering operations. The hub is supported
in position on the knuckle spindle by means of the two
bearings and the rotor is mounted on the hub.
The front suspension is an independent type utilizing
torsion bar springs (4 ×4, 4 ×2 (High ride suspension))
and coil springs (4 ×2 (except High ride suspension)).
The torsion bar spring has splines on each end. Height
control is provided on the third crossmember. Both the
upper and lower links are pressed steel and the torsion
bar is supported at the ends by lower link in front and by
height control arm in rear.



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

SECTION 3C
FRONT SUSPENSION
(4 ×
××
×
2 Except High Ride Suspension)
TABLE OF CONTENTS

Service Precaution ............................................. 3C-8
Shock Absorber .................................................. 3C-9 Shock Absorber and Associated Parts............ 3C-9
Removal .......................................................... 3C-10
Installation ....................................................... 3C-11
Shock Absorber with Coil Spring..................... 3C-13
Stabilizer Bar ...................................................... 3C-16 Stabilizer Bar and Associated Parts ................ 3C-16
Removal .......................................................... 3C-16
Inspection and Repair ..................................... 3C-17
Installation ....................................................... 3C-17
Knuckle............................................................... 3C-18 Knuckle and Associated Parts ........................ 3C-18
Removal .......................................................... 3C-18
Inspection and Repair ..................................... 3C-19
Installation ....................................................... 3C-19
Upper Control Arm ............................................. 3C-20 Upper Control Arm and Associated Parts ....... 3C-20
Removal .......................................................... 3C-20
Inspection and Repair ..................................... 3C-21
Installation ....................................................... 3C-21

Lower Control Arm ............................................. 3C-22
Lower Control Arm and Associated Parts ....... 3C-22
Removal .......................................................... 3C-22
Inspection and Repair ..................................... 3C-23
Installation ....................................................... 3C-23
Upper Ball Joint .................................................. 3C-24 Upper Ball Joint and Associated Parts ............ 3C-24
Removal .......................................................... 3C-24
Inspection and Repair ..................................... 3C-25
Installation ....................................................... 3C-25
Lower Ball Joint .................................................. 3C-26 Lower Ball Joint and Associated Parts ............ 3C-26
Removal .......................................................... 3C-26
Inspection and Repair ..................................... 3C-27
Installation ....................................................... 3C-27
Bump Rubber ..................................................... 3C-28 Bump Rubber Joint and Associated Parts ...... 3C-28
Removal .......................................................... 3C-28
Inspection and Repair ..................................... 3C-28
Installation ....................................................... 3C-28
Special Tools................................................... 3C-29


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3C-8 FRONT SUSPENSION

Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM
REPAIRS.


CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU/GM will indicate those fasteners that require
replacement after removal. ISUZU/GM will also
indicate the fasteners that require thread lockers o
r
thread sealant. UNLESS OTHERWISE SPECIFIED,
do not use supplemental coatings (paints, greases,
or other corrosion inhibitors) on threaded fasteners
or fastener joint interfaces. Generally, such
coatings adversely affect the fastener torque and
the joint clamping force, and may damage the
fastener. When you install fasteners, use the
correct tightening sequence and specifications.
Following these instructions can help you avoid
damage to parts and systems.

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

FRONT SUSPENSION 3C-9
Shock Absorber
Shock Absorber and Associated Parts



RTW 440LF001201

Legend
(1) Shock Absorber ASM with coil
(2) Shock Absorber Nut
(3) Lower Control Arm Nut
(4) Shock Absorber Nut

(5) Lower Ball Joint Nut and Cotter Pin
(6) Link Nut
(7) Shock Absorber Bolt
(8) Cam bolt



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3C-10 FRONT SUSPENSION
Removal
1. Raise the vehicle and support it with suitable
safety stands.
2. Remove wheel and tire assembly. Refer to W heel Replacement in this section.
3. Remove link nut.

CAUTION: Be careful not to damage the ball joint
boot.
4. Support lower control arm with a jack.
5. Remove the shock absorber bolt and nut.
6. Remove lower ball joint nut and cotter pin, then use remover 5-8840-2017-0 to remove the lowe
r
ball joint from the knuckle.

P1010003
7. Apply the setting marks to the front and rear cam
bolt and crossmember, then loosen nut, and cam
bolt.
8. Remove the shock absorber nut.
9. Remove the shock absorber asm.



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

FRONT SUSPENSION 3C-11
Installation
1. Install shock absorber.

RTW 340MF000801
NOTE: Paint mark to be on outer side after assembly to
vehicle.
2. Install shock absorber nut, then tighten it to the specified torque.
Torque: 55 N ⋅
⋅⋅
⋅
m (5.6 kgf ⋅
⋅⋅
⋅
m/41lb ⋅ft)
3. Install shock absorber bolt and nut, and then tighten to the specified torque.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 137 N ⋅
⋅⋅
⋅
m (14.0 kgf ⋅
⋅⋅
⋅
m/101 lb ⋅ft)

NOTE: Apply oil to the thread.
NOTE: Tighten the bolt and nut with the parts in the
position shown in the illustration below.

















RTW 53ASH000201

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3C-12 FRONT SUSPENSION
4. Install link nut, then tighten it to the specified
torque.
Torque: 50 N ⋅
⋅⋅
⋅
m (5.1 kgf ⋅
⋅⋅
⋅
m/37 lb ⋅ft)
5. Tighten the cam bolt and lower control arm nut, setting it to the interim torque, then turn the cam
bolt to the setting mark applied during
disassembly.
6. Install ball joint nut, then tighten it to the specified torque with just enough additional torque to align
cotter pin holes. Install new cotter pin.
Torque: 147 N ⋅
⋅⋅
⋅
m (15.0 kgf ⋅
⋅⋅
⋅
m/108 lb ⋅ft)

NOTE: Check the trim height. Refer to Front Alignment
Inspection and Adjustment.

7. Lower control arm nut tightens it to the specified torque.
Buffer clearance: 25.9 mm (1.02 in)
Torque: 186 N ⋅
⋅⋅
⋅
m (19.0 kgf ⋅
⋅⋅
⋅
m/137 lb ⋅ft)

NOTE: Apply oil to the thread.
NOTE: Tighten the bolt and nut with the parts in the
position shown in the illustration below.



















RTW 53ASH000201
8. Install wheel and tire assembly. Refer to wheel in
this section.




BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

FRONT SUSPENSION 3C-13
Shock Absorber with Coil Spring

RTW 340LF002101

Legend
1. Nut
2. W asher
3. Bushing; Rubber
4. Mounting Bracket
5. Coil Spring


6. Bushing; Rubber
7. W asher
8. Shock Absorber ASM



BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

3C-14 FRONT SUSPENSION
Disassembly

RTW 73CMH000101


1. Install the shock absorber assembly on the strut spring
compressor (5-8840-2842-0).
For the details of the actual operation, follow the steps the
strut spring compressor manufacturer’s instructions.
2. Remove the nut with spring in place.
CAUTION:
Take care not to apply excessive force to the nut during
removal.



CAUTION:
The shock absorbers have been charged with gas at the
factory. Exposure to high temperatures or an open flame
can result in a dangerous explosion.
Keep the shock absorbers away from high temperatures
and open flames.



INSPECTION AND REPAIR
Make all necessary adjustments, repairs, and part replacements if wear, damage, or other problems are discovered
during inspections.



Visual Check
Inspect the following parts for wear, damage or other abnormal
conditions.
• Shock absorber
• Rubber bushing
• Coil spring


BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007