Exhaust Pipe: Service and Repair
3MZ-FE EXHAUST PIPECOMPONENTS:
COMPONENTS:
REMOVAL
1. REMOVE ENGINE UNDERCOVER ASSEMBLY
a. w/Engine the 5 clips, 4 bolts and 2 screws, and then remove the engine under cover.
1 Remove the 5 clips, 4 bolts and 2 screws, and then remove the engine under cover.
2. REMOVE ENGINE UNDER COVER NO. 1
a. w/o Engine under cover
1 Remove the 2 clips, 6 bolts and 2 screws, and then remove the engine under cover No. 1.
b. w/Engine under cover
1 Remove the 2 clips, 2 bolts and 2 screws, and then remove the engine under cover No. 1.
3. REMOVE ENGINE UNDER COVER NO. 2
a. w/Engine under cover No. 2.
1 Remove the 2 bolts.
2 Slide the engine under cover No. 2 toward the rear to detach it from the retainers, and then remove the engine under cover No. 2.
4. REMOVE HEATED OXYGEN SENSOR
a. Bank 1 Sensor 2
1 Disconnect the heated oxygen sensor connector.
2 Remove the connector clamp.
3 Remove the 2 wire harness clamps.
4 Remove the heated oxygen sensor.
b. Bank 2 Sensor 2
1 Disconnect the heated oxygen sensor connector.
2 Remove the wire harness clamp.
3 Remove the heated oxygen sensor.
5. REMOVE EXHAUST PIPE ASSEMBLY TAIL
a. Remove the 2 bolts and 2 compression springs.
b. Remove the exhaust pipe tail from the exhaust pipe support.
c. Remove the gasket from the exhaust pipe center.
6. REMOVE EXHAUST TAIL PIPE BAFFLE SUB-ASSEMBLY
a. Using a plastic hammer, tap the exhaust tail pipe baffle uniformly to remove.
7. REMOVE EXHAUST PIPE ASSEMBLY CENTER
a. Remove the 2 bolts and 2 compression springs.
b. Remove the exhaust pipe center from the 4 exhaust pipe supports.
c. Remove the gasket from the exhaust pipe front No. 3.
8. REMOVE EXHAUST PIPE SUB-ASSEMBLY FRONT NO. 3
a. Remove the 2 bolts and 2 nuts, and remove the exhaust pipe front No. 3 and the 2 gaskets.
9. REMOVE EXHAUST PIPE ASSEMBLY FRONT
a. Remove the 2 nuts.
b. Loosen the clamp bolts, and remove the exhaust pipe front and the gasket.
INSTALLATION
1. INSTALL EXHAUST PIPE ASSEMBLY FRONT
a. Install a new gasket and the exhaust pipe front to the exhaust pipe support bracket No. 1.
NOTICE: When installing the exhaust pipe front, align gaps of the clamp and the exhaust pipe support bracket No. 1.
b. Tighten 2 new nuts.
Torque: 56 Nm (571 kgf-cm, 41 ft. lbs.)
c. Tighten the clamp bolt.
Torque: 21 Nm (214 kgf-cm, 16 ft. lbs.)
2. INSTALL EXHAUST PIPE SUB-ASSEMBLY FRONT NO. 3
a. Install 2 new gaskets and the exhaust pipe front No. 3 with the 2 bolts and 2 new nuts.
Torque: 56 Nm (571 kgf-cm, 41 ft. lbs.)
3. INSTALL EXHAUST PIPE ASSEMBLY CENTER
a. Compression spring inspection
1 Using vernier calipers, measure the free length of the compression spring.
Minimum length: 41.5 mm (1.634 inch)
If the free length is less than the minimum, replace the compression spring.
b. Install a new gasket to the exhaust pipe front No. 3 as shown in the illustration.
c. Tighten the 2 bolts and 2 compression springs.
Torque: 48 Nm (490 kgf-cm, 35 ft. lbs.)
4. INSTALL EXHAUST TAIL PIPE BAFFLE SUB-ASSEMBLY
a. Align the keyway of the exhaust tail pipe baffle with the key located on the exhaust pipe tail.
b. Using a plastic hammer, tap the exhaust tail pipe baffle to install.
5. INSTALL EXHAUST PIPE ASSEMBLY TAIL
a. Compression spring inspection
1 Using vernier calipers, measure the free length of the compression spring.
Minimum length: 40.5 mm (1.594 inch)
If the free length is less than the minimum, replace the compression spring.
b. Install a new gasket to the exhaust pipe center as shown in the illustration.
c. Tighten the 2 bolts and 2 compression springs.
Torque: 48 Nm (490 kgf-cm, 35 ft. lbs.)
6. INSTALL HEATED OXYGEN SENSOR
Torque: 44 Nm (449 kgf-cm, 33 ft. lbs.)
7. CHECK FOR EXHAUST GAS LEAKS
8. INSTALL ENGINE UNDER COVER NO. 2
a. w/Engine under cover No. 2.
9. INSTALL ENGINE UNDER COVER NO. 1
10. INSTALL ENGINE UNDER COVER ASSEMBLY
a. w/Engine under cover assembly.