2007 ISUZU KB P190 lock

4B-12 REAR AXLE
9. Use offset box wrench to compress locking lugs
on the cable, then remove parking brake oute
r
cable from back plate.

311RS012
Legend
1. Offset Box W rench


10. Remove wheel cylinder.
11. Remove bearing holder fixing nuts.
12. Take out axle shaft assembly with back plate and
set it on a bench press as following illustration.
W hen axle shaft is extracted, since axle case oil
seal is damaged, replace the axle case oil seal.
13. Remove snap ring. Use snap ring pliers to
remove. Snap ring is prohibition of reuse.
14. Remove shim (If so equipped)
15. Grind the retainer surfaces using a grinder, then chisel them out with a chisel.



16. Position remover 5-8840-2831-0 on the bearing
holder with 4 nuts.




RTW 54BSH000801


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ISUZU KB P190 2007

REAR AXLE 4B-25
b. Tighten the nut to the specified torque.
Torque:
φ220mm : 2.7 N ⋅m (0.28 kgf ⋅m/24 lb ⋅in)
φ194mm : 2.3 N ⋅m (0.23 kgf ⋅m/20 lb ⋅in)



425RW 030

c. Clean the side bearing bores. Place discs and
dial indicator on to arbor, and place tool into
position in side bearing bores. Install and
tighten the bearing caps to the specified
torque.
Torque : φ220mm : 108N ⋅m (11 kgf ⋅m/80 lb ⋅ft)
φ194mm : 94N ⋅m (10 kgf ⋅m/72 lb ⋅ft)

425RW 031
Legend
φ
φφ
φ
220mm
1. Dial Indicator : 5-8840-0126-0
2. Gauge Plate : 5-8840-2166-0
3. Disc (2 pcs.) : 5-8840-2167-0
4. Arbor : 5-8840-0128-0
φ
φφ
φ
194mm
1. Dial Indicator : 5-8840-0126-0
2. Gauge Plate : 5-8840-2087-0
3. Disc (2 pcs.) : 5-8840-2088-0
4. Arbor : 5-8840-0128-0



Note :
The scale on the dial indicator (5-8840-0126-0) is
inch unit.
d. Set the dial indicator 5-8840-0126-0 to “0”.
Place it on the mounting post of the gauging
arbor with the contact button touching the
indicator pad. Force the dial indicato
r
downward until the needle has made a hal
f
turn clockwise. Tighten down the dial indicato
r
in this position.




425RS020
Legend
1. Dial Indicator
2. Gauging Arbor
3. Plunger
4. Gauge Plate


e. Position the plunger on the gauge plate. Move
the gauging arbor slowly back and forth and
locate the position at which the dial indicato
r
shows the greatest deflection. At this point,
once again set the dial indicator to “0”.
Repeat the procedure to verify the “0” setting.

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ISUZU KB P190 2007

4B-34 REAR AXLE
Differential Cage Assembly
Disassembled View

425R300005
Legend
1. Bolt
2. Ring Gear
3. Lock Pin
4. Cross Pin

5. Pinion Gear
6. Side Gear
7. Thrust W asher (for Side Gear)
8. Differential Cage



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ISUZU KB P190 2007

REAR AXLE 4B-35
Disassembly
1. Remove bolt.
2. Remove ring gear.
3. Drive out lock pin using a long drift Punch.
425RS042

4. Check the amount of backlash between pinion gear on side gear before removal of cross pin.
Backlash : φ220mm : 0.13-0.18 mm (0.005-0.007 in)
φ194mm : 0.10-0.20 mm (0.004-0.008 in)
5. Remove the cross pin by using a brass drift punch and hammer.




425RS043

6. Take out pinion gear, side gear and thrust washer.

Inspection and Repair
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
conditions are found through inspection.
Check the following parts:
• Ring gear, pinion gear
• Bearing
• Side gear, pinion gear, cross pin
• Differential cage, carrier
• Thrust washer
• Oil seal
Clearance between pinion gear and cross pin:
mm (in)
Standard Limit
0.06 - 0.12
(0.002 - 0.005) 0.2 (0.008)

425L100012

Clearance between side gear and differential cage.
mm (in)
Standard Limit
φ220mm 0.05 - 0.11
(0.002 - 0.004) 0.15 (0.006)
φ
194mm 0.03 - 0.10
(0.001 - 0.004) 0.15 (0.006)


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ISUZU KB P190 2007

REAR AXLE 4B-37
Reassembly
1. Install side gear with thrust washer in differential
cage.
2. Install the pinion gear by engaging it with the side gears while turning both pinion gears
simultaneously in the same direction.


425RS048

3. Install cross pin. • Be sure to install the cross pin so that it is in
alignment with the lock pin hole in the
differential cage.



425RS049

4. Check the amount of backlash.
Backlash between the side gear and the pinion gear.

mm (in)
φ220mm 0.13-0.18 (0.005-0.007)
φ194mm 0.10-0.20 (0.004-0.008)
If the backlash is beyond the limits, adjust with a thrust
washer of selected thickness.
Thicknesses of thrust washers available.
Backlash mm (in)
φ220
mm 0.80
(0.031) 0.90
(0.035) 1.00
(0.039) 1.10
(0.043) 1.20
(0.047) 1.30
(0.051)
φ 194
mm 1.00
(0.039) 1.05
(0.041) 1.10
(0.043)





425RY00008

5. Install lock pin.

After lock pin installation, stake the case to
secure the lock pin.
6. Install ring gear.
Refer to “Ring gear replacement” on this section.



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ISUZU KB P190 2007

4B-52 REAR AXLE
3. OIL LEAKAGE
1) Differential Carrier Leakage

Checkpoint Trouble Cause Countermeasure

Correct the oil levelToo much gear oil
NG
Reapply the liquid gasket
and/or tighten the lock nut to
the specified torque
Reapply the liquid gasket
Tighten the bolts to the
specified torque
Replace the oil seal
Ring gear thrust boltLoose lock nut and/or liquid
Liquid gasket seal bed
Loose bolts
Oil sealW orn or defective oil seal
Differential carrier
Clean the air breatherAir breatherClogged air breather
NG
NG
NG
NG
NG
OK
OK
OK
OK
Gear oil level



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ISUZU KB P190 2007

FRONT WHEEL DRIVE 4C1-1
SECTION 4C1
FRONT WHEEL DRIVE
TABLE OF CONTENTS
PAGE
Main Data and Specifications ........................................................................................... 4C1- 3
Special Parts Fixing Nuts and Bolts ................................................................................ 4C1- 4
Recommended Liquid Gasket .......................................................................................... 4C1- 6
Recommended Thread Locking Agents .......................................................................... 4C1- 6
Servicing ...................................................................................................................... ...... 4C1- 7
General Description .......................................................................................................... 4C 1- 8
Front Drive Axle Assembly ..............................................................................................4C1- 10 Front Drive Axle Assembly and Associated Parts ....................................................4C1- 10
Removal ........................................................................................................................ 4C1- 11
Installation ................................................................................................................... .4C1- 12
Front Axle Drive Shaft ......................................................................................................4C1 - 14
Front Axle Drive Shaft and Associated Parts ............................................................4C1- 14
Disassembly .................................................................................................................4C1 - 15
Inspection and Repair .................................................................................................4C1- 16
Bushing Replacement ................................................................................................4C1- 17
Reassembly ..................................................................................................................4C1 - 17
Standard Caulk Measure ............................................................................................4C1- 18
Differential................................................................................................................... ......4C1- 20
Disassembly .................................................................................................................4C1 - 20
Major Components ................................................................................................4C1- 20
Minor Components ................................................................................................4C1- 23
Inspection and Repair .................................................................................................4C1- 25
Reassembly .................................................................................................................4C1 - 27
Minor Components..................................................................................................4C1- 27
Major Components ..................................................................................................4C1- 29

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ISUZU KB P190 2007

4C1-2 FRONT WHEEL DRIVE
PAGE
Front Hub and Disc (4×2 Except High Ride Suspension Model) ..................................4C1- 38 Disassembly .................................................................................................................4C1 - 38
Inspection and Repair .................................................................................................4C1- 41
Reassembly ..................................................................................................................4C1 - 42
Front Hub and Disc
(4×4, 4×2 High Ride Suspension, 4×4 Rigid Hub, 4×4 Shift On the Fly Model) ..........4C1- 46 Disassembly .................................................................................................................4C1 - 46
Inspection and Repair .................................................................................................4C1- 48
Reassembly ..................................................................................................................4C1 - 49
Front Hub and Disc (4×4 Manual Locking Hub Model)..................................................4C1- 53 Disassembly .................................................................................................................4C1 - 53
Inspection and Repair .................................................................................................4C1- 56
Reassembly ..................................................................................................................4C1 -57
Troubleshooting ...............................................................................................................4 C1-63
Special Service Tool.........................................................................................................4C 1-71


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ISUZU KB P190 2007