1995 ISUZU TROOPER Workshop Manual

ENGINE EXHAUST (V6 3.2L) &F-3
ON-VEHICLE SERVICE
FRONT EXHAUST PIPE
2
Removal steps
Left hand side
1.
Front exhaust pipe fixing nuts
2. Front exhaust pipe fixing
bolts and nuts
3. Front exhaust pipe
Right hand side
4. Exhaust
protector 5. Front exhaust pipe fixing nuts 6. Front exhaust pipe fixing bolts and nuts
7. Front exhaust pipe
Installation steps
To install, follow the removal steps in the reverse order.
Fig. 6F-2
EJ REMOVAL
Preparation: • Battery negative cable.
•
Raise the vehicle and support with
suitable safety stands.
Left hand side
1. Front exhaust pipe fixing nuts
• Disconnect front exhaust pipe at exhaust
manifold.
2. Front exhaust pipe fixing bolts and nuts
• Disconnect front exhaust pipe at center
exhaust pipe.
3.
Front exhaust pipe
Right hand side
4. Exhaust protector
5. Front exhaust pipe fixing nuts
• Disconnect front exhaust pipe at exhaust
manifold.
6. Front exhaust pipe fixing bolts and nuts
• Disconnect front exhaust pipe at center
exhaust pipe.
1. Front exhaust pipe
1•+1 INSTALLATION
To install follow the removal steps in the reverse order,
noting the
following points.
NOTE
• Tighten the fixings to the specified torque.
Torque point Torque
N·m (lb·ft)
Front exhaust pipe
43 (32) fixing bolts
Front exhaust pipe 67 (49) fixing nuts
Exhaust protector
37 (27) fixing bolts

&F-4 ENGINE EXHAUST (V6 3.2L)
CENTER EXHAUST PIPE
4
1
Fig. 6F-3
E3 REMOVAL
Preparation: • Battery negative cable.
• Raise the vehicle and support with
suitable safety stands.
1. Exhaust protector
2. Exhaust protector
3. 02 sensor harness connector
• Disconnect 02 sensor harness connector.
4. Center exhaust pipe fixings manifold side
• Remove fixings from left and right flanges.
5. Center exhaust pipe fixing bolts and nuts
• Disconnect center exhaust pipe at pre catalytic
converter.
6. Center exhaust pipe
Removal steps 1. Exhaust protector
2. Exhaust protector
3.
02 sensor harness connector
4. Center exhaust pipe fixing
bolts and nuts
5. Center exhaust pipe fixing
bolts and nuts
6. Mounting rubber
7. Center exhaust pipe
Installation steps
To install, follow the removal
steps in the reverse order.
Gasket
t
Fig. 6F-4
1••1 INSTALLATION 3. Tighten the fixing bolts to the specified torque.
To
install follow the removal steps in the reverse order,
noting the
following points.
NOTE:
1. Be sure to install the new gaskets between
catalytic converter and exhaust pipes
with the
stamped
"U" "AF" mark facing upwards (Fig. 6F-
4).
2. Be sure to install the pre catalytic converter as
shown (Fig. 6F-4). Torque
point
Center exhaust pipe
fixings: manifold side
Center exhaust pipe
fixings: converter side
Exhaust protector
fixing bolts Torque
N·m
(lb·ft)
43 (32)
43 (32)
37 (27)

THREE WAY CATALYTIC CONVERTER
Fig. 6F-5
1••1 REMOVAL
Preparation: • Battery negative cable.
•
Raise the vehicle and support with
suitable safety stands.
1. Exhaust protector
2. Three way catalytic converter fixing bolts
• Disconnect three way catalytic converter at
exhaust
silencer.
3. Three way catalytic converter fixing bolts and
nuts
• Disconnect three way catalytic converter at pre
catalytic converter.
4. Three way catalytic converter
ENGINE EXHAUST (V6 3.2L) &F-5
Removal steps
1. Exhaust protector
2. Three way catalytic converter
fixing
bolts 3. Three way catalytic converter
fixing bolts and nuts
4. Three way catalytic converter
Installation steps
To
install, follow the removal steps in the reverse order.
Gasket
t
Front pipe side Exhaust silencer side
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IN OUT
Fig. 6F-6
1••1 INSTALLATION
To install follow the removal steps in the reverse order,
noting the
following points.
3. Tighten the fixing bolts to the specified torque.
NOTE:
1. Be sure to install the new gaskets between three
way catalytic converter and exhaust pipes with
the stamped "U" "AF" mark facing upwards (Fig.
6F-6).
2. Be sure to install the three way catalytic converter
as shown (Fig. 6F-6). Torque
point
Three way catalytic
converter
fixing bolts:
muffler side
Three
way catalytic
converter fixing bolts:
pre catalytic converter side
Exhaust protector
fixing
bolts
Torque N·m (lb·ft)
43 (32)
43 (32)
37
(27)

6F-6 ENGINE EXHAUST (V6 3.2L)
PRE CATAL VTIC CONVERTER
2
Fig. 6F-7
1••1 REMOVAL
Preparation: • Battery negative cable.
•
Raise the vehicle and support with
suitable safety stands.
1. Pre catalytic converter fixing bolts and nuts
• Disconnect pre catalytic converter at three way
catalytic converter.
3. Pre catalytic converter fixing bolts and nuts
• Disconnect pre catalytic converter at center
exhaust pipe.
3. Pre catalytic converter
1••1 INSTALLATION
Removal steps
1. Pre catalytic converter
fixing bolts and nuts
2. Pre catalytic converter
fixing bolts and
nuts 3. Pre catalytic converter
Installation steps To install, follow the removal
steps in the reverse order.
Gasket
t
Fig. 6F-8
To install follow the removal steps in the reverse order,
noting the following points. 2. Tighten the fixing bolts to the specified torque.
NOTE:
1. Be sure to install the new gaskets between three
way catalytic converter and exhaust pipes with
the stamped "U" "AF" mark facing upwards (Fig.
6F-8). Torque
point
Pre catalytic converter
fixing
bolts: Three way
catalytic converter side
Pre catalytic converter
fixing
bolts: center
exhaust pipe side Torque
N·m
(lb·ft)
43 (32)
43 (32)