Isuzu KB P190. Manual — part 85

3C-20 FRONT SUSPENSION

Upper Control Arm

Upper Control Arm and Associated Parts

450R300038

Legend

(1) Upper Control Arm Bolt

(2) Bushing

(3) Upper Control Arm Nut

(4) Upper Control Arm Assembly

(5) Upper Ball Joint

(6) Nut and Cotter Pin

(7) Knuckle

(8) Link Nut

(9) Upper Ball Joint Nut

(10) Upper Ball Joint Bolt

(11) Speed Sensor Harness Nut

(12) Brake Fluid Hose Nut

Removal

1. Raise the vehicle and support the frame with

suitable safety stands.

2. Remove wheel and tire assembly. Refer to Wheel

in this section.

3. Remove speed sensor harness nut.

4. Remove brake fluid hose nut.

FRONT SUSPENSION 3C-21

5. Remove link nut.

6. Remove upper ball joint by using remover 5-8840-

2017-0.

CAUTION: Be careful not to damage the ball joint
boot.

P1010005

7. Remove upper control arm nut.

8. Remove upper control arm bolt.

9. Remove upper ball joint bolt and nut.

10. Remove upper ball joint.

11. Remove upper control arm assembly.

12. Remove bushing.

Inspection and Repair

Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
during inspection.

Check the following parts:

• Upper control arm
• Bushing

Installation

1. Install bushing by using installer 5-8840-0257-0

and 5-8840-2327-0.

P1010062

2. Install upper ball joint and tighten it to the specified

torque.

Torque: 31 N

⋅⋅⋅⋅m (3.2 kgf⋅⋅⋅⋅m/23 lb⋅ft)

3. Install nut and cotter pin then tighten the nut to the

specified torque, with just enough additional torque

to align cotter pin holes. Install new cotter pin.

Torque: 98 N

⋅⋅⋅⋅m (10.0 kgf⋅⋅⋅⋅m/72 lb⋅ft)

4. Install upper control arm assembly.

5. Install upper control arm bolt and nut.

NOTE: Apply oil to the thread.

NOTE: Tighten the bolt with the parts in the position
shown in the illustration below.

Buffer clearance: 25.9 mm (1.02 in)

Torque: 137 N

⋅⋅⋅⋅m (14.0 kgf⋅⋅⋅⋅m/101 lb⋅ft)

RTW53ASH000201

6. Install brake fluid hose nut.

7. Install speed sensor harness nut.

3C-22 FRONT SUSPENSION

Lower Control Arm

Lower Control Arm and Associated Parts

RTW340LF002301

Legend

(1) Cam bolt

(2) Bush

(3) Cam plate

(4) Lower Control Arm Nut

(5) Shock Absorber Nut

(6) Lower Ball Joint Bolt

(7) Lower Ball Joint

(8) Nut and cotter pin

(9) Lower Ball Joint Nut

(10) Link Nut

(11) Shock Absorber Bolt

Removal

1. Raise the vehicle and support the frame with

suitable safety stands.

2. Remove wheel and tire assembly. Refer to Wheel

in this section.

3. Remove the tie-rod end from the knuckle. Refer to

Power Steering Unit in Steering section.

FRONT SUSPENSION 3C-23

4. Support lower control arm with a jack.

5. Remove the link nut.

6. Remove the nut and cotter pin.

7. Remove the shock absorber lower end from the

lower control arm.

8. Remove the lower ball joint from the lower control

arm.

9. Remove lower control arm nut and cam plate.

10. Remove cam bolt.

11. Remove lower control arm.

12. Remove bushing.

Inspection and Repair

Make the necessary adjustments or parts replacement
if wear, damage, corrosion or any other abnormal
condition is found during inspection.

Check the following parts:

• Lower control arm
• Bushing

Installation

1. Install rear bushing by using installer 5-8840-

0257-0 and 5-8840-2327-0.

P1010063

2. Install lower control arm.

3. Install cam bolt.

4. Install lower ball joint and tighten it to the specified

torque.

Torque: 127 N

⋅⋅⋅⋅m (13.0 kgf⋅⋅⋅⋅m/94 lb⋅ft)

5. Install shock absorber and tighten it to the

specified torque.

NOTE: Apply oil to the thread.

NOTE: Tighten the lower control arm nut with the parts
in the position shown in the illustration below.

Torque: 137 N

⋅⋅⋅⋅m (14.0 kgf⋅⋅⋅⋅m/101 lb⋅ft)

RTW53ASH000201

6. Install stabilizer link and tighten it to the specified

torque.

Torque: 50 N

⋅⋅⋅⋅m (5.1 kgf⋅⋅⋅⋅m/37 lb⋅⋅⋅⋅ft)

7. Install lower control arm nut and cam plate and

tighten lower link nut finger-tight.

NOTE: Apply oil to the thread.

NOTE: Tighten the lower control arm nut with the parts
in the position shown in the illustration below.

Buffer clearance: 25.9 mm (1.02 in)

Torque: 186 N

⋅⋅⋅⋅m (19.0 kgf⋅⋅⋅⋅m/137 lb⋅⋅⋅⋅ft)

RTW53ASH000201

8. Install nut and cotter pin then tighten the nut 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)