Isuzu KB P190. Manual - part 141

4C1-60  FRONT WHEEL DRIVE 

 

 

RTW74CSH00030

1 

 

17. Oil  Seal 
Installer : 5-8840-2854-0 

Grip : 

5-8840-0007-0 

Apply grease (Besco L-2 or equivalent) to the lip portion. 

Discard the used oil seal and install a new one. 

 

  

 

RTW44CSH00020

1 

 

 

18. Outer  bearing 
Outer race ; outer bearing 

Install the outer race by driving it into the hub. 

Installer : 5-8522-0054-0 

Grip : 

5-8840-0007-0 

 

 

 

 

19. Hub and Disc Assembly 

(

1) Apply grease in the hub. 

(2) Apply grease (Besco L-2 or equivalent) to the outer and 

inner bearing. 

g(oz)

Hub

35 (

1.23)

Outer bearing

10 (0.35)

Inner bearing

15 (0.53)

 

 

 

 

 

20. Hub  Nut 

(

1) Turn the place where there is a chamfer in the tapped hole

to the outer side, and attach the nut. 

 

Wrench : 5-8840-2

117-0 

 

 

FRONT WHEEL DRIVE  4C1-61 

 

 

 

 

Preload Adjustment 

Tighten the hub nut at 29 N

⋅m (3.0 kgf⋅m / 22 lb⋅ft), then loosen 

the nut to the full. 

Tighten the hub nut at the value given below, using a spring 
scale on the wheel pin. 

Bearing Preload 

N (kgf/lb)

 

New bearing and New oil seal 

22 - 27  

(2.2 - 2.8 / 4.9 - 6.2) 

Used bearing and New oil seal 

14 - 20  

(

1.4 - 2.0 / 3.1 - 4.5) 

If the measured bearing preload is outside the specifications, 
adjust it by loosening or tightening the bearing nut. 

 

 

 

 

 
 

21. Lock  Washer 
Turn the side with larger diameter of the tapered bore to the 
vehicle outer side, and attach the washer. 

If the bolt holes in the lock plate are not aligned with the 
corresponding holes in the nut, reverse the lock plate. 

If the bolt holes are still out of alignment, turn in the nut just 
enough to obtain alignment,.  Screw is to be fastened tightly so 
its head may come lower than the surface of the washer. 

 

 

 

 

 

22. Body  Assembly 
Apply adhesive (Loctite 5

15 or equivalent) to the both joining 

faces. 

 

 

 

 

 

23. Snap Ring and Shims 
Adjust the clearance between the free wheeling hub body and 
the snap ring. 

Clearance mm(in)

0 - 0.2 (0 - 0.08) 

Adjust Shims Available 

mm(in)

0.2, 0.3, 0.5, 

1.0 

(0.008, 0.0

11, 0.020, 0.039) 

 

4C1-62  FRONT WHEEL DRIVE 

 

 

 

 

24. Cover  Assembly 
Align stopper nails to grooves of body. 

 

 

 

 

 

25. Bolt 

Torque N

⋅m (kgf⋅m/lb⋅in)

12 (1.2 / 104) 

•  Refer to SECTION 3E “WHEELS AND TIRES” for wheel 

install procedure. 

 
 
 

FRONT WHEEL DRIVE  4C1-63 

TROUBLESHOOTING 

Refer to this Section to quickly diagnose and repair front axle problems.  Each troubleshooting chart has three 
headings arranged from left to right. 

(

1) Checkpoint   (2) Trouble Cause   (3) Countermeasure 

This Section is divided into ten sub-sections: 

 

4×2 Model 

1.  Wanders and pulls 
2.  Front wheel shimmy 

 

4×4 Model 

1.  Oil leak at front axle 
2.  Oil leak at pinion shaft 

3.  Noises in front axle drive shaft joint 

4.  Noises in front axle 

5.  Wanders and pulls 

6.  Front wheel shimmy 

 

Propeller shaft 

1. Noise 
2. Vibration