ISUZU KB P190 2007 Workshop Repair Manual

FRONT WHEEL DRIVE 4C1-57
REASSEMBLY


RTW 440LF00040 1


Reassembly Steps

1 . Spacer
2. Ring
3. Snap ring

4. Inner assembly
5. Snap ring
6. X-ring

7. Knob

8. Snap ring

9. Retaining spring

1 0. Follower

11 . Compression spring

1 2. Clutch assembly




1 3. W heel pin

1 4. Bolt

1 5. ABS sensor rotor

1 6. Inner bearing

1 7. Oil seal

1 8. Outer bearing

1 9. Hub and disc assembly

20. Hub nut

21. Lock washer

22. Body assembly

23. Snap ring and shim

24. Cover assembly

25. Bolt



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ISUZU KB P190 2007

4C1-58 FRONT WHEEL DRIVE





Important Operations
1. Spacer
Apply grease to both faces of spacer.
4. Inner Assembly
Apply grease wheel bearing to inside face of ring.
g(oz)

Amount of grease 6 (0.21)



7. Knob
( 1 ) Apply grease W heel bearing to outer circumference of knob
and inner circumference of cover.
(2) Align detent ball to either groove of cover.





8. Snap Ring
Turn the smoother face to knob side.
9. Retaining Spring
Align the end of spring to the end of cut portion of clutch spring
groove.




10. Follower
Install follower to clutch so that follower nail will come closer to
the bent portion of retaining spring by aligning follower stopper
nail to outer teeth of clutch. Then, hook retaining spring onto
upper portion of hanger nails of follower.





11. Compression Spring
Turn the smaller diameter side to follower.
12. Clutch Assembly
Align follower nail to handle groove, and then assemble clutch
with knob by pushing and turning clutch counterclockwise to
knob.


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ISUZU KB P190 2007

FRONT WHEEL DRIVE 4C1-59


13. Wheel Pin
( 1 ) Place hub on a wood workbench or a block of wood,
approx. 6” by 6” to protect the wheel stud ends and threads.
(2) Install wheel stud using a hammer.
Be sure wheel stud is started squarely and seats completely.



(3) Align index marks and install hub to disc.



14. Bolt
Torque N ⋅m (kgf ⋅m/lb ⋅ft)
1 03 ( 10.5/76)


15. ABS sensor rotor
( 1 ) Set a new ABS sensor rotor, if replacement is required.
(2) Install the ABS sensor rotor in the hub, using special tools.
Installer : 5-8840-2789-0
Grip : 5-8840-0007-0
Refer to the section Brake.




16. Inner Bearing
Outer race ; outer bearing
Install the outer race by driving it into the hub.
Installer : 5-8840-2 119-0
Grip : 5-8840-0007-0


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ISUZU KB P190 2007

4C1-60 FRONT WHEEL DRIVE

RTW 74CSH000301
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.




RTW 44CSH00020 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.
W rench : 5-8840-2 117-0



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ISUZU KB P190 2007

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 1
4 - 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)


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ISUZU KB P190 2007

4C1-62 FRONT WHEEL DRIVE


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




25. Bolt
Torque N ⋅m (kgf ⋅m/lb ⋅in)
1 2 ( 1.2 / 104)
• Refer to SECTION 3E “W HEELS AND TIRES” for wheel
install procedure.




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ISUZU KB P190 2007

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. W anders 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. W anders and pulls
6. Front wheel shimmy

Propeller shaft
1 . Noise
2. Vibration


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ISUZU KB P190 2007

4C1-64 FRONT WHEEL DRIVE
4× 2 Model
1. WANDERS AND PULLS

Checkpoint Trouble Cause Countermeasure


Adjust the wheel bearing
preload

Too tight

NG


Adjust the front alignment

Front alignment

Incorrect


Steering unit

Tighten or replace

Loose or worn

NG
NG

Suspension

Tighten or replace


Replace or adjust the inflation


Front or rear suspension parts
loose or broken


Tire

W orn or improperly inflated

OK NG
NG
OK
OK
OK

W heel bearing preload




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ISUZU KB P190 2007

FRONT WHEEL DRIVE 4C1-65
2. FRONT WHEEL SHIMMY
Checkpoint Trouble Cause Countermeasure



Ball joint or bush

Replace the ball joint or bush

Worn


Front alignment

Adjust the front alignment


Adjust or replace


Incorrect


W orn or improperly adjusted

OK
OK NG
NG
NG
OK
W heel bearing

Tighten or replace

Loose or worn

NG

Shock absorber

Replace the shock absorber

Worn


Tire

Replace or adjust the inflation

W orn or improperly inflated

OK
NG
NG
OK

Steering unit


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ISUZU KB P190 2007

4C1-66 FRONT WHEEL DRIVE
4× 4 MODEL
1. OIL LEAK AT FRONT AXLE

Checkpoint Trouble Cause Countermeasure

Front axle housingRepair or replaceCracked
Replace the oil sealW orn or defective oil seal
NG
NG
OKOil seal



2. OIL LEAK AT PINION SHAFT

Oil sealReplace the oil sealW orn or defective
Correct the oil levelToo much gear oil
NG
NG
OKGear oil level
Pinion flangeTighten or replaceLoose or damaged
NG
OK



3. NOISES IN FRONT AXLE DRIVE SHAFT JOINT


Replace the drive shaft joints
and bellows

Broken or worn

NG
Drive shaft joints and bellows
(UJ and DOJ)




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ISUZU KB P190 2007