Nissan Cube. Manual — part 406
EM-28
< REMOVAL AND INSTALLATION >
INTAKE MANIFOLD
a.
Tighten in the order of 1 to 5 as shown in the figure.
b.
Tighten No. 1 bolt again.
c.
Tighten intake manifold mounting bolt (A). Then tighten intake
manifold mounting bolt (B).
Electric Throttle Control Actuator
• Tighten bolts of electric throttle control actuator equally and diagonally in several steps.
• Perform “Throttle Valve Closed Position Learning” after repair when removing harness connector of the elec-
tric throttle control actuator. Refer to
EC-19, "THROTTLE VALVE CLOSED POSITION LEARNING :
.
• Perform “Throttle Valve Closed Position Learning” and “Idle Air Volume Learning” after repair when replacing
electric throttle control actuator. Refer to
EC-19, "THROTTLE VALVE CLOSED POSITION LEARNING :
EC-20, "IDLE AIR VOLUME LEARNING : Description"
.
: Engine front
PBIC3527J
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: Intake manifold
: Engine front
PBIC3939E
EXHAUST MANIFOLD
EM-29
< REMOVAL AND INSTALLATION >
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EXHAUST MANIFOLD
Exploded View
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Removal and Installation
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REMOVAL
1.
Remove exhaust front tube. Refer to
2.
Remove exhaust manifold cover.
3.
Remove the air fuel ratio sensor 1.
• Using heated oxygen sensor wrench [SST: KV10117100 (J-3647-A)], 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 (Disas-
sembly of harness connector is necessary).
4.
Remove exhaust manifold stay.
5.
Remove exhaust manifold.
PBIC4735E
1.
Exhaust manifold cover
2.
Exhaust manifold
3.
Gasket
4.
Stud bolt
5.
Harness bracket
6.
Air fuel ratio sensor 1
7.
Exhaust manifold stay
: Always replace after every disassembly.
EM-30
< REMOVAL AND INSTALLATION >
EXHAUST MANIFOLD
• Loosen nuts in the order of 5 to 1 as shown in the figure.
NOTE:
• Disregard No. 6 to 8 when loosening.
6.
Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSTALLATION
Exhaust manifold
1.
Install gasket to cylinder head as shown in the figure.
2.
Install exhaust manifold with the following procedure:
a.
Tighten nuts in the order of 1 to 8 as shown in the figure.
NOTE:
• No. 6 to 8 mean double tightening of nuts No. 1 to 3.
b.
Install exhaust manifold stay (2) in the direction as shown in the
figure.
3.
Install remaining parts in the reverse order of removal.
AIR FUEL RATIO SENSOR 1
CAUTION:
: Engine front
JPBIA2356ZZ
: Engine front
PBIC3943E
: Engine front
JPBIA2356ZZ
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: Exhaust manifold
3
: Drive shaft support bearing bracket
A
: Upper mark
: Vehicle front
PBIC3255J
EXHAUST MANIFOLD
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< REMOVAL AND INSTALLATION >
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• Before installing a new air fuel ratio sensor 1, clean exhaust system threads using heated oxygen
sensor thread cleaner tool (commercial service tool) and apply anti-seize lubricant.
• Never over torque air fuel ratio sensor 1. Doing so may cause damage to air fuel ratio sensor 1,
resulting in the “MI” coming on.
• Prevent rust preventives from adhering to the sensor body.
Inspection
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INSPECTION AFTER REMOVAL
Surface Distortion
• Using feeler gauge (A) and straightedge (B), check the surface dis-
tortion of exhaust manifold mating surface in each exhaust port
and entire part.
• If it exceeds the limit, replace exhaust manifold.
Limit
: Refer to
.
PBIC3530J
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