Nissan Pathfinder (2010 year). Instruction — part 363
EM-32
< ON-VEHICLE REPAIR >
[VQ40DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
Exploded View
INFOID:0000000005260449
Removal and Installation (Three Way Catalyst)
INFOID:0000000005568713
WARNING:
Perform the work when the exhaust and cooling system have cooled sufficiently.
REMOVAL
1. Remove the front wheel and tire. Refer to
2. Remove the front fender protector. Refer to
EXT-23, "Removal and Installation of Front Fender Protector"
3. Remove the exhaust manifold cover bolts.
4. Remove the center exhaust tube, main muffler and front exhaust tube. Refer to
5. Disconnect the air fuel ratio sensor 1 harness connector.
6. Remove the three way catalyst nuts and remove the three way catalyst.
7. Remove the air fuel ratio sensor 1 using Tool, if necessary.
1.
Cylinder head (LH)
2.
Cylinder head (RH)
3.
Exhaust manifold studs (RH)
4.
Gasket
5.
Exhaust manifold nuts (RH)
6.
Exhaust manifold (RH)
7.
Exhaust manifold cover (RH)
8.
Three way catalyst (RH)
9.
Three way catalyst studs (RH)
10. Seal ring
11. Three way catalyst nuts (RH)
12. Three way catalyst nuts (LH)
13. Seal ring
14. Three way catalyst studs (LH)
15. Three way catalyst (LH)
16. Exhaust manifold cover (LH)
17. Exhaust manifold (LH)
18. Exhaust manifold nuts (LH)
19. Gasket
20. Exhaust manifold studs (LH)
ALBIA0654GB
2010 Pathfinder
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-33
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CAUTION:
• Be careful not to damage air fuel ratio sensor 1.
• Discard any air fuel ratio sensor 1 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.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten air fuel ratio sensor 1 to specification, if removed.
CAUTION:
• Do not over tighten air fuel ratio sensor 1. Doing so may cause damage to air fuel ratio sensor 1,
resulting in the “MIL” coming on.
• Before installing a new air fuel ratio sensor 1, clean exhaust system threads using oxygen sensor
thread cleaner and apply anti-seize lubricant.
Removal and Installation (Exhaust Manifold)
INFOID:0000000005260450
REMOVAL (LH)
WARNING:
Perform the work when the exhaust and cooling system have cooled sufficiently.
1. Remove engine room cover. Refer to
EM-25, "Removal and Installation"
2. Remove air cleaner case (upper) and air duct and resonator assembly. Refer to
.
3. Remove engine under cover. Refer to
EXT-14, "Removal and Installation"
.
4. Partially drain engine coolant. Refer to
CO-12, "Changing Engine Coolant"
5. Remove three way catalyst (LH). Refer to
EM-32, "Removal and Installation (Three Way Catalyst)"
6. Remove exhaust manifold cover (LH).
7. Remove oil level gauge and oil level gauge guide. Refer to
8. Disconnect water hoses at heater pipe. Refer to
9. Remove heater pipe from cylinder head (LH). Refer to
.
10. Loosen nuts in reverse order as shown.
•
: Front
NOTE:
Disregard the numerical order No. 7 and 8 in removal.
11. Remove exhaust manifold (LH).
12. Remove gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
Tool number
: KV991J0050 (J-44626)
Air fuel ratio sensor
: 50.0 N·m (5.1 kg-m, 37 ft-lb)
Oxygen sensor thread cleaner
: — (J-43897-12)
Oxygen sensor thread cleaner
: — (J-43897 18)
AWBIA0725ZZ
2010 Pathfinder
EM-34
< ON-VEHICLE REPAIR >
[VQ40DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
• Check the surface distortion of the exhaust manifold mating sur-
face with straightedge and feeler gauge.
• If it exceeds the limit, replace exhaust manifold.
INSTALLATION (LH)
Installation is in the reverse order of removal.
Exhaust Manifold Gasket
Install the exhaust manifold gasket in direction as shown.
•
: Front
• A: Identification hole
Exhaust Manifold
• If exhaust manifold studs were removed, install them and tighten to specification.
• Install exhaust manifold and tighten nuts in numerical order as
shown.
CAUTION:
Use new exhaust manifold nuts for installation.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 show second step.
-
: Front
REMOVAL (RH)
1. Remove three way catalyst (RH). Refer to
EM-32, "Removal and Installation (Three Way Catalyst)"
.
2. Remove heat shield from lower dash panel.
3. Remove support bolts from A/T fluid charging pipe. Refer to
.
4. Loosen nuts in reverse order as shown.
•
: Front
NOTE:
Disregard the numerical order No. 7 and 8 in removal.
5. Remove exhaust manifold (RH) and exhaust manifold cover (RH) together.
6. Remove gaskets.
Limit : 0.3 mm (0.012 in)
PBIC1096E
AWBIA0726ZZ
AWBIA0725ZZ
AWBIA0727ZZ
2010 Pathfinder
EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-35
< ON-VEHICLE REPAIR >
[VQ40DE]
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CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion
• Check the surface distortion of the exhaust manifold mating sur-
face with straightedge and feeler gauge.
• If it exceeds the limit, replace exhaust manifold.
INSTALLATION (RH)
Installation is in the reverse order of removal.
NOTE:
If necessary, a crowfoot may be used to tighten the exhaust manifold nuts.
Exhaust Manifold Gasket
Install the exhaust manifold gasket in direction as shown.
•
: Front
• A: Identification hole
Exhaust Manifold
• If exhaust manifold studs were removed, install them and tighten to specification.
• Install exhaust manifold and tighten nuts in numerical order as
shown.
CAUTION:
Use new exhaust manifold nuts for installation.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 show second step.
-
: Front
Limit : 0.3 mm (0.012 in)
PBIC1096E
AWBIA0728ZZ
AWBIA0727ZZ
2010 Pathfinder
EM-36
< ON-VEHICLE REPAIR >
[VQ40DE]
OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
Exploded View
INFOID:0000000005260451
Removal and Installation
INFOID:0000000005260452
REMOVAL (LOWER)
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
1. Drain engine oil. Refer to
2. Remove the oil pan (lower) using the following steps.
1.
Oil pan (upper)
2.
Oil pressure switch
3.
O-ring
4.
Relief valve
5.
O-ring
6.
Oil cooler
7.
Connector bolt
8.
Oil filter
9.
Drain plug
10. Drain plug washer
11. Oil pan (lower)
12. Rear cover plate
13. Oil strainer
14
O-ring
15. Oil level gauge guide
16. Oil level gauge
PBIC2883E
2010 Pathfinder
OIL PAN AND OIL STRAINER
EM-37
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a. Remove the oil pan (lower) bolts using power tool in reverse
order as shown.
b. Insert Tool between the oil pan (lower) and the oil pan (upper).
CAUTION:
• Be careful not to damage the mating surfaces.
• Do not insert screwdriver, this will damage the mating
surfaces.
NOTE:
Tap (1) Tool to insert it and then slide (2) it by tapping on the side
of the Tool as shown.
INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSTALLATION (LOWER)
1. Install oil pan (lower) as follows:
a. Use scraper to remove old liquid gasket from mating surfaces.
• Also remove old liquid gasket from mating surface of oil pan
(upper).
• Remove old liquid gasket from the bolt holes and thread.
CAUTION:
Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
b. Apply a continuous bead of liquid gasket using Tool to the oil
pan (lower) as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
CAUTION:
Attaching should be done within 5 minutes after coating.
c. Install oil pan (lower).
PBIC2890E
Tool number
: KV10111100 (J-37228)
WBIA0566E
PBIC2888E
Tool number
: WS39930000 (
—
)
PBIC2889E
2010 Pathfinder
EM-38
< ON-VEHICLE REPAIR >
[VQ40DE]
OIL PAN AND OIL STRAINER
• Tighten oil pan (lower) bolts in numerical order as shown.
2. Install oil pan drain plug. Refer to
EM-36, "Removal and Installation"
.
3. After 30 minutes fill with engine oil and inspect for leaks. Refer to
.
CAUTION:
Do not fill the engine with oil for at least 30 minutes after oil pan is installed.
INSPECTION AFTER INSTALLATION
1. Start engine, and check for leaks of engine oil.
2. Stop engine and wait for 10 minutes.
3. Check engine oil level. Refer to
.
REMOVAL (UPPER)
WARNING:
To avoid the danger of being scalded, do not drain engine oil when engine is hot.
CAUTION:
• Perform this procedure when engine is cold.
• Do not spill engine oil on drive belts.
• Do not spill engine coolant on drive belts.
1. Remove engine under covers (front) and (rear). Refer to
EXT-14, "Removal and Installation"
.
2. Drain engine oil. Refer to
3. Drain engine coolant. Refer to
CO-12, "Changing Engine Coolant"
.
4. Remove oil level gauge and oil level gauge guide.
5. Remove front final drive (4WD models). Refer to
DLN-353, "Removal and Installation"
6. Remove front frame crossmember.
7. Disconnect steering gear lower joint shaft bolt and steering gear nuts and bolts, position out of the way.
ST-22, "Removal and Installation"
8. Remove stabilizer bar brackets and position stabilizer bar out of the way. Refer to
.
9. Disconnect A/T fluid cooler tube brackets and position out of the way. Refer to
(2WD models),
(4WD models).
10. Remove oil filter, if necessary. Refer to
LU-11, "Removal and Installation"
.
11. Disconnect oil cooler hoses and remove oil cooler, if necessary. Refer to
12. Disconnect oil pressure switch and remove, if necessary.
13. Remove oil pan (lower).
14. Remove oil strainer.
15. Remove transmission joint bolts which pierce oil pan (upper). Refer to
(2WD models),
(4WD models).
16. Remove rear cover plate.
PBIC2890E
2010 Pathfinder
OIL PAN AND OIL STRAINER
EM-39
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[VQ40DE]
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17. Loosen oil pan (upper) bolts with power tool in reverse order as
shown.
• Insert Tool between oil pan (upper) and lower cylinder block.
Tap (1) Tool to insert it and then slide (2) it by tapping on the
side as shown.
CAUTION:
Be careful not to damage mating surfaces.
18. Remove O-rings from bottom of lower cylinder block and oil
pump.
INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSTALLATION (UPPER)
1. Install oil pan (upper) as follows:
a. Use scraper to remove old liquid gasket from mating surfaces.
• Also remove the old liquid gasket from mating surface of lower
cylinder block.
• Remove old liquid gasket from the bolt holes and threads.
CAUTION:
Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
PBIC2887E
Tool number
: KV10111100 (J-37228)
WBIA0566E
PBIC2885E
PBIC2884E
2010 Pathfinder
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