Removal And Installation

EXHAUST MANIFOLD


Removal and Installation


REMOVAL
1. Remove the cowl. Service and Repair.
2. Remove heat insulator.
3. Remove exhaust front tube. Component.
4. Remove the harness bracket of air fuel ratio sensor 1 from the cylinder head.
5. Remove exhaust manifold covers.
6. Remove the air fuel ratio sensor 1.





- Use Tool (A) to remove air fuel ratio sensor 1.

CAUTION:
Handle air fuel ratio sensor 1 carefully and avoid impacts.

NOTE:
The exhaust manifold can be removed and installed without removing the air fuel ratio sensor 1 (Disassembly of harness connector is necessary).






7. Remove exhaust manifold side bolt of exhaust manifold stay.
8. Remove exhaust manifold.






Arrow Indicates Engine Front


- Loosen nuts in the reverse of the order shown.


9. Remove gasket.

CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove exhaust manifold cover from back of exhaust manifold.

INSPECTION AFTER REMOVAL

Mounting Surface Distortion





- Use suitable tools (A) and (B) to check distortion of exhaust manifold mounting surface as shown.






- Replace exhaust manifold if outside the limit.

INSTALLATION
Installation is in the reverse order of removal.

Exhaust Manifold






Arrow Indicates Engine Front


1. Tighten exhaust manifold nuts to specification in two stages in the numerical order shown.






2. Use Tool (A) to install the air fuel ratio sensor 1.






CAUTION:
- Handle it carefully and avoid impacts.
- Before installing a new air fuel ratio sensor 1, clean the exhaust tube threads using suitable tool and approved anti-seize lubricant.
- Do not over-tighten the air fuel ratio sensor 1. Doing so may damage the air fuel ratio sensor 1, resulting in the
MIL coming on.