Exhaust System: Service and Repair

NOTE:
- Always replace exhaust gaskets with new ones when assembling.
- If gasket remains on the flange surface, scrape off completely as shown.
- With engine running, check all tube connections for exhaust gas leaks and entire system for unusual noises.
- Ensure that mounting brackets and mounting insulators are installed properly and free from undue stress. Improper installation could result in excessive noise or vibration.
- Discard any 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), replace with a new one.