2007 ISUZU KB P190 oil

3C-2 FRONT SUSPENSION
MAIN DATA AND SPECIFICATIONS
4×
××
×
2 (Except High Ride Suspension) Model
Front suspension Type Independent wishbone arms, coil spring
with stabilizer bar.
Coil spring Spring Rate 9.62 kg/mm (94.3 N/mm)
Type Gas-sealed, twin tube
Stroke 116.5 mm (4.59 in)
Compressed length 284.0 mm (11.18 in)
Front shock absorber
Extended length 400.5 mm (15.77 in)
Stabilizer bar Diameter 25.0 mm (0.98 in)

4×
××
×
2 (High Ride Suspension) Model
Front suspension Type Independent wishbone arms, torsion bar spring
with stabilizer bar.
Length 1,142 mm (44.96 in) Torsion bar spring
Diameter 29.0 mm (1.14 in)
Type Gas-sealed, twin tube
Stroke 121.0 mm (4.76 in)
Compressed length 257.0 mm (10.12 in)
Front shock absorber
Extended length 378.0 mm (14.88 in)
Stabilizer bar Diameter 26.0 mm (1.02 in)

4×
××
×
4 Model
Front suspension Type Independent wishbone arms, torsion bar spring
with stabilizer bar.
Length 1,142 mm (44.96 in) Torsion bar spring
Diameter 29.0 mm (1.14 in)
Type Gas-sealed, twin tube
Stroke 121.0 mm (4.76 in)
Compressed length 257.0 mm (10.12 in)
Front shock absorber
Extended length 378.0 mm (14.88 in)
Stabilizer bar Diameter 26.0 mm (1.02 in)


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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.



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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


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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



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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

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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.




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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



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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


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ISUZU KB P190 2007