Exhaust Manifold: Service and Repair
REPLACEMENT1. REMOVE ENGINE ASSY
2. REMOVE HEATED OXYGEN SENSOR
3. REMOVE EXHAUST MANIFOLD HEAT INSULATOR NO.1
4. REMOVE EXHAUST MANIFOLD HEAT INSULATOR NO.2
5. REMOVE EXHAUST MANIFOLD SUB-ASSY RH
6. REMOVE EXHAUST MANIFOLD SUB-ASSY LH
7. INSPECT EXHAUST MANIFOLD SUB-ASSY RH
a. Using a precision straight edge and feeler gauge, measure the surface contacting the cylinder head for warpage
Maximum warpage: 0.50 mm (0.0197 inch)
If the warpage is greater than maximum, replace the manifold.
8. INSPECT EXHAUST MANIFOLD SUB-ASSY LH
a. Employ the same manner described above to the other side.
9. INSTALL EXHAUST MANIFOLD SUB-ASSY LH
NOTICE:
^ Install a new gasket with the white mark facing the exhaust manifold side.
^ Uniformly tighten the nuts diagonally.
Torque: 44 Nm (450 kgf-cm, 32 ft. lbs.)
10. INSTALL EXHAUST MANIFOLD SUB-ASSY RH
a. Employ the same manner described above to the other side.
11. INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.2
12. INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.1
13. INSTALL HEATED OXYGEN SENSOR
14. INSTALL ENGINE ASSY