2006 INFINITI M35 stall

INTAKE MANIFOLD
EM-25
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Revision: 2006 January2006 M35/M45
INSPECTION AFTER REMOVAL
Surface Distortion
Check the surface distortion of the intake manifold mating sur-
face with a straightedge and a feeler gauge.
If it exceeds the limit, replace intake manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold
If stud bolts were removed, install them and tighten to the specified torque below.
Tighten all mounting bolts and nuts to the specified torque in two
or more steps in numerical order shown in the figure.Limit : 0.1 mm (0.004 in)
PBIC0870E
: 10.8 Nꞏm (1.1 kg-m, 8 ft-lb)
1st step:
: 7.4 Nꞏm (0.75 kg-m, 5 ft-lb)
2nd step and after:
: 29.0 Nꞏm (3.0 kg-m, 21 ft-lb)
PBIC0778E

EM-26
[VQ35DE]
EXHAUST MANIFOLD
Revision: 2006 January2006 M35/M45
EXHAUST MANIFOLDPFP:14004
ComponentsNBS004N4
Refer to GI-11, "Components" for symbol marks in the figure.
Removal and InstallationNBS004N5
REMOVAL
WAR NING :
Perform the work when the exhaust and cooling system have completely cooled down.
1. Remove engine room cover (RH and LH). Refer to EM-14, "
ENGINE ROOM COVER" .
2. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
3. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
4. Remove front and rear engine undercover with power tool.
5. Remove exhaust front tube and three way catalysts (right and left bank). Refer to EX-3, "
EXHAUST SYS-
TEM" .
6. Disconnect air fuel ratio sensor 1 (bank 1 and bank 2) harness connectors and remove harness clip.
1. Air fuel ratio sensor 1 (bank 1) 2. Exhaust manifold cover (right bank) 3. Exhaust manifold (right bank)
4. Gasket 5. Stud bolt 6. Exhaust manifold (left bank)
7. Exhaust manifold cover (left bank) 8. Air fuel ratio sensor 1 (bank 2)
PBIC3200E

EXHAUST MANIFOLD
EM-27
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Revision: 2006 January2006 M35/M45
7. Using the heated oxygen sensor wrench (SST), remove air fuel
ratio sensor 1 (bank 1 and bank 2).
CAUTION:
Be careful not to damage air fuel ratio sensor 1.
Discard any air fuel ratio sensor 1 which has been
dropped onto a hard surface such as a concrete floor;
replace with a new sensor.
8. Remove exhaust manifold cover (right and left bank).
9. Loosen mounting nuts in the reverse order as shown in the fig-
ure to remove exhaust manifold with power tool.
NOTE:
Disregard the numerical order No. 7 and 8 in removal.
10. Remove gaskets.
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 a straightedge and a feeler gauge.
If it exceeds the limit, replace exhaust manifold.
INSTALLATION
Note the following, and install in the reverse order of removal.
SBIA0575E
PBIC2042E
Limit : 0.3 mm (0.012 in)
PBIC1096E

EM-28
[VQ35DE]
EXHAUST MANIFOLD
Revision: 2006 January2006 M35/M45
Exhaust Manifold Gasket
Install in direction shown below. (Follow same procedure for
both banks.)
Locate thick side of port connecting part on right side from tech-
nician’s view.
Locate round press in thick side of port connecting part above
center level line of port.
Exhaust Manifold
If stud bolts were removed, install them and tighten to the specified torque below.
Install exhaust manifold and tighten mounting bolts in numerical
order as shown in the figure.
NOTE:
Tighten nuts No. 1 and 2 in two steps. The numerical order No. 7
and 8 shows second step.
Air Fuel Ratio Sensor
CAUTION:
Before installing a new air fuel ratio sensor, clean exhaust system threads using heated oxygen
sensor thread cleaner tool (Commercial Service Tool: J-43897-18 or J-43897-12) and apply anti-
seize lubricant.
Do not over torque air fuel ratio sensor. Doing so may cause damage to air fuel ratio sensor,
resulting in the “MIL” coming on.
KBIA1051E
: 14.7 Nꞏm (1.5 kg-m, 11 ft-lb)
PBIC2042E

OIL PAN AND OIL STRAINER
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Revision: 2006 January2006 M35/M45
OIL PAN AND OIL STRAINERP F P : 1111 0
Components (2WD Models)NBS004N6
Removal and Installation (2WD Models)NBS004N7
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
When removing oil pan (lower) only, steps 2 to 6 are not necessary. Perform step 22 after completing step 7.
1. Remove front and rear engine undercover with power tool.
2. Remove front tire.
1. Oil pan gasket (rear) 2. Oil pan (upper) 3. O-ring
4. Oil pan gasket (front) 5. Oil filter 6. Connector bolt
7. Oil cooler 8. O-ring 9. Relief valve
10. Oil pressure switch 11. Bracket 12. Oil strainer
13. Drain plug 14. Drain plug washer 15. Oil pan (lower)
16. Baffle plate 17. Rear plate cover 18. Crankshaft position sensor (POS)
19. Seal rubber 20. Rear cover plate
PBIC3877E

EM-30
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 January2006 M35/M45
3. Remove hood assembly. Refer to BL-15, "HOOD" .
4. Remove engine room cover (RH and LH). Refer to EM-14, "
ENGINE ROOM COVER" .
5. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
6. Remove air duct (inlet). Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
7. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:
Perform this step when the engine is cold.
Do not spill engine oil on drive belts.
8. Drain engine coolant. Refer to CO-11, "
Changing Engine Coolant" .
CAUTION:
Perform this step when the engine is cold.
Do not spill engine coolant on drive belts.
9. Remove air duct from air cleaner case. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
10. Remove stabilizer clamp, and then obtain the space under the oil pan (lower) by lowering the stabilizer.
Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
NOTE:
If the oil pan (upper) is removed, this procedure is not necessary.
11. Install engine slinger to sling engine assembly for positioning. Refer to EM-113, "
ENGINE ASSEMBLY" .
12. Remove front suspension member. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
13. Remove drive belts. Refer to EM-15, "
DRIVE BELTS" .
14. Remove alternator stay. Refer to SC-23, "
CHARGING SYSTEM" .
15. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
16. Remove idler pulley and bracket assembly. Refer to EM-64, "
TIMING CHAIN" .
17. Disconnect oil cooler water hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
18. Disconnect A/T fluid cooler hoses, and remove A/T fluid cooler tube. Refer to AT- 2 7 1 , "
TRANSMISSION
ASSEMBLY" .
19. Remove crankshaft position sensor (POS).
CAUTION:
Handle carefully to avoid dropping and shocks.
Do not disassemble.
Do not allow metal powder to adhere to magnetic part at sensor tip.
Do not place sensors in a location where they are exposed to magnetism.
20. Remove oil filter, as necessary. Refer to LU-10, "
OIL FILTER" .
21. Remove oil cooler, as necessary. Refer to LU-14, "
OIL COOLER" .
22. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to
remove.Slinger bolts:
: 28.0 Nꞏm (2.9 kg-m, 21 ft-lb)
PBIC0782E

OIL PAN AND OIL STRAINER
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Revision: 2006 January2006 M35/M45
b. Insert the seal cutter (SST) between oil pan (upper) and oil pan
(lower).
CAUTION:
Be careful not to damage the mating surfaces.
Do not insert a screwdriver, this will damage the mating
surfaces.
c. Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).
23. Remove baffle plate.
24. Remove oil strainer.
25. Remove transmission joint bolts which pierce oil pan (upper). Refer to AT- 2 7 1 , "
TRANSMISSION ASSEM-
BLY" .
26. Remove rear cover plate.
27. Loosen mounting bolts in the reverse order as shown in the fig-
ure with power tool to remove.
I n s e r t t h e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ] b e t w e e n o i l
pan (upper) and cylinder block. Slide seal cutter by tapping on
the side of tool with a hammer. Remove oil pan (upper).
CAUTION:
Be careful not to damage the mating surfaces.
Do not insert a screwdriver, this will damage the mat-
ing surfaces.
28. Remove O-rings from bottom of cylinder block and oil pump.
29. Remove oil pan gaskets.
INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSTALLATION
1. Install oil pan (upper) as follows:
SEM960F
PBIC0783E
PBIC1144E
PBIC1145E

EM-32
[VQ35DE]
OIL PAN AND OIL STRAINER
Revision: 2006 January2006 M35/M45
a. Use a scraper to remove old liquid gasket from mating surfaces.
CAUTION:
Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
Also remove old liquid gasket from mating surface of cylinder
block.
Remove old liquid gasket from the bolt holes and threads.
b. Install new oil pan gaskets.
Apply liquid gasket to oil pan gaskets as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
To install, align protrusion of oil pan gasket with notches of
front timing chain case and rear oil seal retainer.
Install oil pan gasket with smaller arc to front timing chain
case side.
c. Install new O-rings on the bottom of cylinder block and oil pump.
MEM108A
PBIC2630E
PBIC1145E
PBIC1144E