Removal And Installation (RH)

EXHAUST MANIFOLD AND THREE WAY CATALYST

Removal and Installation (RH)


REMOVAL


WARNING:
- Perform the work when the exhaust and cooling system have completely cooled down.
- When removing the front and rear engine mounting through bolts and nuts, lift the engine up slightly for safety. For engine slingers, refer to "Removal and Installation" Removal And Installation.
1.Remove the engine and transaxle assembly. Refer to "Removal and Installation" Removal And Installation.
2.Remove the RH three way catalyst supports.
3.Remove rear engine mount bracket. Refer to "Removal and Installation" Removal And Installation.
4.Remove heated oxygen sensor 2 (bank 1), air fuel ratio (A/F) sensor 1 (bank 1).
a.Remove harness connector from heated oxygen sensor 2 and air fuel ration (A/F) sensor 1, and disconnect the harness from the bracket and middle clamp.
b.Remove both heated oxygen sensors 2 and air fuel ratio (A/F) sensors 1 using Tool.

Tool numbers : KV10114400 (J-38365)
: KV991J0050 (J-44626)

CAUTION:
- Be careful not to damage heated oxygen sensors 2 or air fuel ratio (A/F) sensors 1.
- Discard any heated oxygen sensor 2 which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new sensor.
5.Remove exhaust manifold heat shield (RH) and three way catalyst heat shields (RH) using power tool.
6.Remove the three way catalyst (bank 1) by loosening the bolts first and then removing the nuts and through bolts.





7.Loosen the exhaust manifold nuts in the reverse order as shown and remove the exhaust manifold (RH).

White arrow indicates : Engine front

NOTE:
Number 7 and 8 are not applicable to removal.

INSPECTION AFTER REMOVAL

Surface Distortion





- Use a reliable straightedge and feeler gauge to check the flatness of the exhaust manifold mating surfaces.
Limit: 0.3mm (0.012 in)

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:
Do not reuse exhaust manifold gaskets.





- Install the exhaust manifold nuts in the order as shown (A).

White arrow indicates :Engine front

CAUTION:
- Before installing a heated oxygen sensor 2 or air fuel ratio (A/F) sensor 1, clean the exhaust manifold threads using the oxygen sensor thread cleaner tool, and apply anti-seize lubricant.

Tool numbers : J-43897-18
: J-43897-12

- Do not over-tighten the air fuel ratio (A/F) sensor 1 or heated oxygen sensors 2. Doing so may cause damage.

Tool numbers : KV10114400 (J-38365)
: KV991J0050 (J-44626)