Exhaust Pipe: Service and Repair

EXHAUST PIPE

COMPONENTS:

REMOVAL

NOTICE: Check if an old gasket remains on the pipe. If remains, remove it. Check if any bolts or nuts are rusted. If rusted, replace them.

1. REMOVE HEATED OXYGEN SENSOR
a. Remove the 2 heated oxygen sensors (bank 1, 2 sensor 2).

2. REMOVE EXHAUST PIPE ASSEMBLY TAIL
a. Remove the 2 bolts [A] and pipe tail from the exhaust pipe center.
b. Remove the pipe tail from the exhaust pipe supports [B].
3. REMOVE EXHAUST PIPE ASSEMBLY CENTER
a. Remove the 2 bolts and pipe center from the exhaust pipe front No. 3.
b. Remove the pipe center from the 4 exhaust pipe supports.

4. REMOVE EXHAUST PIPE SUB-ASSEMBLY FRONT NO. 3
a. Remove the 2 nuts [A] and pipe front No. 3 from the exhaust manifold.
b. Remove the 2 bolts [B] and pipe front No. 3 from the exhaust pipe assembly front.

5. REMOVE EXHAUST PIPE ASSEMBLY FRONT
a. Loosen the clamp [A].
b. Remove the 2 nuts [B] and pipe.

INSTALLATION
1. INSTALL EXHAUST PIPE ASSEMBLY FRONT
a. Install 2 new gaskets and the pipe with the 2 nuts.
Torque: 56 Nm (571 kgf-cm, 41 ft. lbs.)
b. Tighten the clamp.
Torque: 21 Nm (214 kgf-cm, 15 ft. lbs.)

2. INSTALL EXHAUST PIPE SUB-ASSEMBLY FRONT NO. 3
a. Install 2 new gaskets to the pipe front No. 3.
b. Install the front pipe No. 3 to the pipe front with the 2 bolts [A].
Torque: 56 Nm (571 kgf-cm, 41 ft. lbs.)
c. Install the front pipe No. 3 to the exhaust manifold RH with the 2 nuts [B].
Torque: 56 Nm (571 kgf-cm, 41 ft. lbs.)
3. INSTALL EXHAUST PIPE ASSEMBLY CENTER
a. Install the pipe center to the 4 exhaust pipe supports.
b. Install a new gasket and the pipe center to the front pipe No. 3 with the 2 bolts.
Torque: 48 Nm (489 kgf-cm, 35 ft. lbs.)

4. INSTALL EXHAUST PIPE ASSEMBLY TAIL
a. Install the pipe tail to the exhaust pipe support [A].
b. Install a new gasket and the pipe tail to the pipe center with the 2 bolts [B].
Torque: 48 Nm (489 kgf-cm, 35 ft. lbs.)

5. INSTALL HEATED OXYGEN SENSOR
a. Install the 2 heated oxygen sensors (bank 1, 2 sensor 2).
Torque: 44 Nm (449 kgf-cm, 32 ft. lbs.)

HINT:
^ Before installing the sensor, twist the sensor wire counterclockwise 3 and 1/2 turns.
^ After installing the sensor, check that the sensor wire is not twisted. If it is twisted, remove the sensor and reinstall it.

6. CHECK EXHAUST GAS LEAKAGE
If gas is leaking, tighten the areas necessary to stop the leak.
If damaged, replace it.