Nissan Maxima Service and Repair Manual: Exhaust Manifold And Three Way Catalyst
Exploded View
![Nissan Maxima. Exploded View](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_52.jpg)
- Gasket
- Exhaust manifold (RH)
- Exhaust manifold heat shield (RH)
- Air fuel ratio sensor 1 (bank 1)
- Ring gasket
- Three way catalyst (bank 1)
- Three way catalyst support (bank 1)
- Heated oxygen sensor 2 (bank 1)
- Three way catalyst (bank 2)
- Three way catalyst support (bank 2)
- Heated oxygen sensor 2 (bank 2)
- Ring gasket
- Exhaust manifold (LH)
- Exhaust manifold heat shield (LH)
- Air fuel ratio sensor 1 (bank 2)
- To oil pan (upper)
- Upper mark
Engine front
Removal and Installation (LH)
REMOVAL
WARNING:
- Perform the work when the exhaust system has completely cooled
down.
- When removing the front and rear engine mounting through bolts
and nuts, lift the engine up slightly for safety.
NOTE: When removing components such as
hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
- Remove the air cleaner case assembly, and air duct hose and resonator
assembly. Refer to EM-24, "Removal and Installation".
- Remove the battery and battery tray assembly. Refer to PG-68,
"Removal and Installation (Battery Tray)".
- Remove the radiator. Refer to CO-14, "Removal and Installation".
- Remove the fan shroud and fan motor. Refer to CO-16, "Removal and
Installation".
- Remove the front exhaust tube. Refer to EX-5, "Exploded View".
- Remove the three way catalyst support brackets (LH).
- Remove heated oxygen sensor 2 (bank 2), air fuel ratio (A/F)
sensor 1 (bank 2).
- . Remove harness connector of each sensor,
and disconnect the harness from the bracket and middle clamp.
- . Remove both heated oxygen sensor 2 and air fuel
ratio (A/F) sensor 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.
- Remove exhaust manifold heat shield (LH) and three way catalyst heat
shields (LH) using power tool.
- Remove the three way catalyst (bank 2) by loosening the bolts first and
then removing the nuts and through bolts.
- Loosen and remove the exhaust manifold nuts in the reverse
order as shown.
![Nissan Maxima. REMOVAL](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_54.jpg)
: Engine front
NOTE: Number 7 and 8 are not applicable to
removal.
- Remove the exhaust manifold (LH) and gasket.
INSPECTION AFTER REMOVAL
Surface Distortion
- Use a suitable tool to check the flatness of the exhaust manifold
mating surfaces as shown.
![Nissan Maxima. INSPECTION AFTER REMOVAL](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_55.gif)
Limit : 0.3 mm (0.012 in)
- Replace the exhaust manifold if the measurement exceeds specifications.
INSTALLATION
Installation is in the reverse order of removal.
- Install the studs in the exhaust manifold (if removed), and
tighten to specification.
Exhaust manifold studs : 15.4 N*m (1.6 kg-m, 11 ft-lb)
- Install the exhaust manifold gasket in the direction shown.
CAUTION: Do not reuse exhaust manifold
gaskets.
![Nissan Maxima. INSTALLATION](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_56.gif)
(A) : Bank 1
(B) : Triangle press
(C) : Bank 2
: Engine front
- Install the exhaust manifold (LH) nuts and tighten to specification
in the order shown.
![Nissan Maxima. INSTALLATION](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_58.jpg)
: Engine front
NOTE: Number 7 and 8 are tightened a second time.
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.
Oxygen sensor thread cleaner : (J-43897-18)
Oxygen sensor thread cleaner
: (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)
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 EM-103, "Removal and Installation".
- Remove the engine and transaxle assembly. Refer to EM-103,
"Removal and Installation".
- Remove the (RH) three way catalyst supports.
- Remove rear engine mount bracket. Refer to EM-103, "Removal and
Installation".
- Remove heated oxygen sensor 2 (bank 1), air fuel ratio (A/F)
sensor 1 (bank 1).
- Remove harness connector from heated
oxygen sensor 2 (bank 1) and air fuel ratio (A/F) sensor 1, and
disconnect the harness from the bracket and middle clamp.
- Remove both heated oxygen sensors 2 (bank 1)
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.
- Remove exhaust manifold heat shield (RH) and three way catalyst heat
shields (RH) using power tool.
- Remove the three way catalyst (bank 1) by loosening the bolts first and
then removing the nuts and through bolts.
- Loosen the exhaust manifold nuts in the reverse order as shown
and remove the exhaust manifold (RH).
![Nissan Maxima. REMOVAL](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_60.jpg)
: Engine front
NOTE: Number 7 and 8 are not applicable to removal.
INSPECTION AFTER REMOVAL
Surface Distortion
- Use a suitable tool to check the flatness of the exhaust manifold
mating surfaces as shown.
![Nissan Maxima. INSPECTION AFTER REMOVAL](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_62.gif)
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).
![Nissan Maxima. INSPECTION AFTER REMOVAL](/images/manuals/399/nissan_maxima_exhaust_manifold_and_three_way_catalyst_63.jpg)
:Engine front
NOTE: Number 7 and 8 are tightened a second time.
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)
Removal and Installation
Intake manifold
Intake manifold gaskets
Refer to INSTALLATION
REMOVAL
WARNING: To avoid the danger of being
scalded, do not drain the coolant when th ...
Exploded View
Oil pan baffle
O-ring
Gasket
Oil pressure switch
Oil cooler gasket
Oil cooler
Oil cooler connection
Oil filter
Lower oil pan
Oil strainer
Rear plate cove ...
Other materials:
Display unit
Reference Value
TERMINAL LAYOUT
PHYSICAL VALUES
...
Opener operation
To open the trunk lid, push the opener switch.
To close the trunk lid, lower and push the trunk lid
down securely.
NOTE:
You can open the trunk lid with the Intelligent
Key. For additional information, refer
to "NISSAN Intelligent Key" in this section.
Cancel switch
When the cancel ...
Key slot
Removal and Installation
REMOVAL
Remove the instrument lower panel LH. Refer to
IP-19, "Removal and Installation".
Remove the switch assembly screws (A), remove
the key slot
screws (B) and then remove key slot (1) from instrument lower
panel LH (2).
IN ...