Isuzu engine C22NE / 22LE / 20LE. Service manual — part 121

6F-6 ENGINE EXHAUST

Exhaust Pipe

Exhaust Pipe and Associated parts

Removal

1. Front exhaust pipe flange nut and gasket

2. Front exhaust pipe

3. Center exhaust pipe damper rubber

4. Catalytic converter

5. Center exhaust pipe

6. Rear exhaust pipe damper rubber

7. Exhaust silencer with rear exhaust pipe

8. Rear exhaust pipe

9. Mid pipe (for 4

×

4)

9’. Mid pipe (for 4

×

2)

Installation

To install, follow the removal steps in the reverse order.

ENGINE EXHAUST 6F-7

Important - Installation

1. Front Exhaust Pipe Flange Nut
Connect the exhaust pipe to the exhaust manifold.
Front exhaust pipe to manifold nut.
Torque

N

⋅

m (kgf

⋅

m)

28 (2.9)

Inspection

Make the necessary adjustments, and part replacements if
excessive wear or damage is discover during inspection.

1. Front Exhaust Pipe

2. Center Exhaust Pipe and Catalytic Converter Flange

Nut

3. Exhaust Pipe Damper Rubber

4. Exhaust Silencer with Rear Exhaust Pipe

Check the pipes for for corrosion, cracking , damage or
misalignment and repair if required.
Check the damper rubber for deterioration or damage and
repair if required.

6F-8 ENGINE EXHAUST

Front Exhaust Pipe

Front Exhaust Pipe and Associated Parts

Legend

1 Front Exhaust Pipe Fixing Nuts
2 O

2

Sensor (If applicable)

3 Front Exhaust Pipe
4 Front Exhaust Pipe Fixing Bolts and Nuts

1

3

2

4

Removal

1. Disconnect battery ground cable.

2. Raise the vehicle and support with suitable safety stands.

3. Disconnect O

2

sensor harness connector and remove front

side O

2

sensor (2). (If applicable)

4. Remove front exhaust pipe fixing bolts and nuts (4).

5. Remove front exhaust pipe fixing four stud nuts from

exhaust manifold (1).

6. Remove front exhaust pipe (3)

ENGINE EXHAUST 6F-9

Installation

1. Install front exhaust pipe (3) and tighten four stud nuts.

Torque:

Stud Nuts: 28 N

⋅

m (2.9 kgf

⋅

m)

Nuts: 43 N

⋅

m (4.4 kgf

⋅

m)

2. Tighten front side O

2

sensor and reconnect O

2

sensor

harness connector. (If applicable)

Torque:55 N

⋅

m (5.6 kgf

⋅

m)