Isuzu N-Series. Manual - part 856

MANUAL TRANSMISSION 7B-85

Counter Shaft (5MT)

Components

Disassembly

1. Remove the bearing fixing snap ring using snap

ring pliers.

2. Remove the bearing; counter front using the bear-

ing remover 5-8840-2587-0.

Legend

1. Snap ring

5. Coil spring

2. Bearing; Counter front

6. Straight pin

3. Snap ring

7. Counter shaft assembly

4. Anti-lash plate

8. Bearing; Counter rear

N7A0395E

N7A1253E

7B-86 MANUAL TRANSMISSION

3. Remove the anti-lash plate fixing snap ring using

snap ring pliers.

4. Remove the anti-lash plate using the flange holder

5-8840-4056-0.

5. Remove the three coil springs from the 5th gear.
6. Remove the straight pin from the 5th gear.
7. Remove the bearing; counter rear using the bear-

ing remover 5-8840-2587-0.

If any wear, damage or other abnormality is found
on the disassembled parts, repair or replace the
parts.

8. Inspect the surface of each gear for damage or

wear. If any abnormality is found, replace the gear.

9. Inspect each bearing with respect to the following

items. If any abnormality is found, replace with a
new one.

• Smoothness of rotation
• Noise
• Abnormal external appearance, including dam-

age, rust, etc.

• Abnormal free play in thrust direction

Assembly

1. Insert the bearing counter rear with a press using

the installer 5-8840-2244-0.

2. Install the straight pin within the range of protru-

sion.

3. Assemble the three coil springs to the groove on

the side of the 5th gear, while these springs have
to touch the left side of the pin viewing from the
center of the gear.

N7A0397E

N7A1254E

N7A1255E

N7A0400E

MANUAL TRANSMISSION 7B-87

4. Set the springs between the folded protrusion of

the anti-lash plate and the straight pin. Using the
flange holder 5-8840-4056-0, align the set hole of
the anti-lash plate with the set hole of the 5th gear,
and install.

5. Install the anti-lash plate fixing snap ring using

snap ring pliers.

Caution:
Replace deformed or damaged snap rings with new
ones. Check that the parts are securely installed.

6. Install the bearing: counter front with a press using

the installer 5-8840-2244-0.

7. Install the bearing fixing snap ring using snap ring

pliers.

• Select the thickest snap ring installable from

the following three types.

Caution:
Replace deformed or damaged snap rings with new
ones. Check that the parts are securely installed.

Special Tools

N7A0401E

N7A0397E

Thickness, mm (in)

Color

1.9 (0.0748)

Blue

2.1 (0.0826)

Yellow

2.3 (0.0905)

Pink

Illustration

Tool Number / 

Description / Remarks

5-8840-2587-0 / Bearing 

Remover

5-8840-4056-0 / Flange 

Holder

N7A1256E

5884025870

5884040560

7B-88 MANUAL TRANSMISSION

5-8840-2244-0 / Bearing 

Installer

Illustration

Tool Number / 

Description / Remarks

5884022440