Isuzu KB P190. Manual — part 119

4B-32 REAR AXLE

16. Tighten the bolt to the specified torque.

Torque

:

φ220mm : 108 N⋅m (11 kgf⋅m/80 lb⋅ft)

φ194mm : 98 N⋅m (10 kgf⋅m/72 lb⋅ft)

425RS036

• Measure the amount of run-out of the ring gear at

its rear face. It should be 0.05 mm (0.002 in) or

less

Gear Tooth Contact Pattern Check and Adjustment

1. Apply a thin coat of Prussian blue or equivalent

to the faces of the 7–8 teeth of the ring gear.

Check the impression of contact on the ring gear

teeth and make necessary adjustment as

described in illustration if the contact is

abnormal.

425RS038

Legend

1. Heel

2. Toe

3. Concave Side(Coast)

4. Convex Side(Drive)

REAR AXLE 4B-33

425RS039

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 Washer (for Side Gear)

8.

Differential

Cage

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)

φ194mm

0.03 - 0.10

(0.001 - 0.004)

0.15 (0.006)