Exhaust System: Service and Repair

CAUTION: Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat resistance, corrosion resistance, and shape.
Perform the operation with the exhaust system fully cooled down because the system will be hot just after the engine stops.
Be careful not to cut your hand on the insulator edge.

Exhaust System:

REMOVAL
1. Remove cable from exhaust control valve. Refer to Dual mode muffler.
2. Disconnect each joint and mounting.


INSTALLATION
Install in the reverse order of removal.

CAUTION: Always replace exhaust gaskets with new ones when reassembling.

Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 inch) onto a hard surface such as a concrete floor; use a new one.

Before installing a new heated oxygen sensor, clean exhaust system threads using heated oxygen sensor thread clearer fool, J-43897-18 or J-43897-12, and apply anti-seize lubricant.

Do not over torque the heated oxygen sensor. Doing so may cause damage to the heated oxygen sensor, resulting in the MIL coming on.

If the insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the insulator, remove them.

When installing the insulator avoid large gaps or interference between the insulator and each exhaust pipe.

Remove deposits and left over gasket material from the sealing surface of each connection. Connect them securely to avoid gas leakage.

Temporarily tighten mounting nuts on the exhaust manifold side and mounting bolts on the vehicle side. Check each part for abnormal interference, and then tighten them to the specified torque. When installing each clamp, align the protrusion on the insulator with the clamp hole.

When installing each mounting rubber, avoid twisting or abnormal extension in up/down and right/left directions.







Install mounting rubbers on rear main muffler as shown.



INSPECTION AFTER INSTALLATION
With the engine running, check exhaust tube joints for gas leakage and unusual noises.

Check to ensure that mounting brackets and mounting insulators are installed properly and free from undue stress. Improper installation could result in excessive noise and vibration.