sensor INFINITI FX35 2008 Service Manual

EM-36
< SERVICE INFORMATION >[VQ35DE]
OIL PAN AND OIL STRAINER
Removal and Installation (AWD Models)
INFOID:0000000001325719
REMOVAL
CAUTION:
To avoid the danger of being scalded, never drain engine oil when the engine is hot.
NOTE:
To remove oil pan (lower) only, take step 5, then st ep 24. Removal of step 1, hood assembly (step 2) and step
4 are unnecessary.
1. Remove front tire.
2. Remove hood assembly. Refer to BL-13, "
Fitting Adjustment".
3. Remove front and rear engine undercover with power tool.
4. Remove front cross bar with power tool. Refer to FSU-5, "
On-Vehicle Inspection and Service".
5. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
6. Drain engine coolant. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
7. Remove engine cover with power tool. Refer to EM-19, "
Component".
8. Remove air hose from air duct to mass air flow s ensor side and electric throttle control actuator side.
Refer to EM-17, "
Component".
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FAX-13, "
On-Vehicle Inspection".
11. Remove side shaft. Refer to FFD-14, "
Removal and Installation (VQ35DE Models)".
12. Removal engine rear lower slinger, and install engine rear slinger [SST: 10006 31U00 ( — )] to sling engine assembly for positioning. Refer to EM-7, "
Special Service Tool".
13. Remove front suspension member. Refer to FSU-16, "
Removal and Installation".
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-112,
"Component (2WD Models)".
15. Remove front propeller shaft. Refer to PR-4, "
On-Vehicle Inspection".
16. Remove oil filter and oil filter bracket. Refer to LU-10, "
Component".
17. Remove alternator stay. Refer to SC-19, "
System Description".
18. Remove idler pulley and bracket. Refer to EM-15, "
Removal and Installation".
19. Disconnect oil cooler water hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-12, "
Com-
ponent".
20. Disconnect A/T fluid cooler hoses, and remove A/T fluid cooler tube. Refer to AT-241, "
Removal and
Installation (2WD Models)".
21. Remove front final drive assembly. Refer to FFD-14, "
Removal and Installation (VQ35DE Models)".
22. Remove starter motor. Refer to SC-8, "
System Description".
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 filter bracket 11. Oil filter bracket gasket 12. Oil strainer
13. Drain plug 14. Drain plug washer 15. Oil pan (lower)
16. Rear plate cover 17. Crankshaft position sensor (POS) 18 O-ring (small)
19. O-ring (large) 20. Axle pipe
Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

OIL PAN AND OIL STRAINEREM-37
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
23. 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 wh ere they are exposed to magnetism.
24. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in reverse order as shown in the figure to remove.
b. Insert the seal cutter (SST) between oil pan (upper) and oil pan (lower).
c. Slide the seal cutter by tapping on the side of tool with a ham- mer. Remove oil pan (lower).
CAUTION:
 Be careful not to damage the mating surface.
 Do not insert flat-bladed screw driver, this will damage the
mating surface.
25. Remove oil strainer.
26. Remove transmission joint bolts which pierce oil pan (upper). Refer to AT-241, "
Removal and Installation
(2WD Models)".
27. Loosen mounting bolts in the reverse order as shown in the fig- ure with power tool to remove.
 Insert the seal cutter [SST: KV10111100 (J37228)] between oilpan (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 mating
surfaces.
28. Remove O-rings from bottom of cylinder block and oil pump.
PBIC0782E
SEM960F
PBIC0783E
PBIC1144E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CAMSHAFTEM-83
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
CAMSHAFT
ComponentINFOID:0000000001325731
1.
Intake valve timing control solenoid
valve (right bank)
2. Gasket 3. Camshaft bracket (No. 2 to 4)
4. Camshaft (EXH) 5. Camshaft (INT) 6. Camshaft bracket (No. 1)
7. Seal washer 8. Dowel pin 9. Valve lifter
10. O-ring 11. Timing chain tensioner (secondary)
(right bank)12. Spring
13. Plunger 14. Timing chain tensioner (secondary)
(left bank)
15. Cylinder head (right bank)
16. Cylinder head (left bank) 17. O-ring 18. Camshaft position
sensor (PHASE)
(right bank)
19. Camshaft position sensor (PHASE)
(left bank) 20.
Intake valve timing control solenoid
valve (left bank)
A. Refer to EM-84
PBIC4684E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-84
< SERVICE INFORMATION >[VQ35DE]
CAMSHAFT
 Refer to
GI-8, "Component" for symbols in the figure.
Removal and InstallationINFOID:0000000001325732
REMOVAL
1. Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to EM-
64, "Component".
2. Remove camshaft position sensor (PHASE) (right and left banks) from cylinder head back side.
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.
3. Remove intake valve timing control solenoid valves.  Discard intake valve timing control solenoid valve gaskets anduse new gaskets for installation.
4. Remove camshaft brackets.  Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction forinstallation.
 Equally loosen camshaft bracket bolts in several steps in reverse order as shown in the figure.
5. Remove camshaft.
KBIA1046E
SEM443GA
PBIC2050E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-122
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
CYLINDER BLOCK
ComponentINFOID:0000000001325746
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Cover 5. Gasket 6. Cylinder block
7. Knock sensor 8. Oil jet 9. Thrust bearing
PBIC4690E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER BLOCKEM-125
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
6. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “B” and “C” and cylinder block front side
at “A” as shown in the figure.
7. Remove drive plate with power tool. Fix cr ankshaft with a ring gear stopper [SST: KV1011770 (J44716)],
and remove mounting bolts.
 Loosen mounting bolts in diagonal order.
CAUTION:
 Do not disassemble drive plate.
 Never place drive plate with signal plate facing down.
 When handling signal plate, take care not to damage or
scratch it.
 Handle signal plate in a ma nner that prevents it from
becoming magnetized.
8. Remove the following parts:  Intake manifold collector: Refer to EM-19, "
Component".
 Intake manifold: Refer to EM-24, "
Component".
 Oil pans (lower and upper): Refer to EM-30, "
Component (2WD Models)".
 Front and rear timing chain case: Refer to EM-64, "
Component".
 Cylinder head: Refer to EM-100, "
On-Vehicle Service".
9. Remove knock sensor. CAUTION:
Carefully handle sensor avoiding shocks.
PBIC2610E
SEM760G
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-134
< SERVICE INFORMATION >[VQ35DE]
CYLINDER BLOCK
18. Install knock sensor.
 Install knock sensor so that connector faces front of theengine.
 After installing knock sensor, connect harness connector, and lay it out to rear of the engine.
CAUTION:
 Do not tighten mounting bolts while holding connector.
 If any impact by dropping is applied to knock sensor, replace it with new one.
NOTE:
 Make sure that there is no foreign material on the cylinder block mating surface and the bac k surface of knock sensor.
 Make sure that knock sensor does not interfere with other parts.
19. Note the following, assemble in the reverse order of disassembly after this step.
Drive plate When installing drive plate to crankshaft, be sure to correctly align crankshaft side guide pin and drive plate side guide pin hole.
- If these are not aligned correctly, engine runs roughly and “MIL” turns on.
 Install drive plate and reinforcement plate as shown in the fig- ure.
 Holding ring gear with the ring gear stopper [SST: KV10117700 (J44716)].
 Tighten the mounting bolts crosswise over several times.
CAUTION:
Make sure that dowel pin is installed at the rear end of
crankshaft.
How to Select Piston and BearingINFOID:0000000001325748
DESCRIPTION
*: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is a vailable.) The
information at the shipment from the plant is described as a reference.
 The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
 For reused or repaired parts, measure the dimens ion accurately. Determine the grade by comparing the
measurement with the values of each selection table.
 For details of the measurement method of each part , the reuse standards and the selection method of the
selective fitting parts, refer to the text.
PBIC0810E
PBIC0910E
Selection points Selection parts Selection items Selection methods
Between cylinder block and
crankshaft Main bearingMain bearing grade
(bearing thickness) Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft and con-
necting rod Connecting rod bearingConnecting rod bearing grade
(bearing thickness) Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer di-
ameter determine connecting
rod bearing selection.
Between cylinder block and pis-
ton Piston and piston pin assembly
(Piston is available together
with piston pin as assembly.)Piston grade
(piston skirt diameter)
Piston grade = cylinder bore
grade (inner diameter of bore)
Between piston and connecting
rod* ———
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PREPARATIONEM-163
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
PREPARATION
Special Service ToolINFOID:0000000001325759
The actual shapes of Kent-Moore t
ools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
K V 1 0 1111 0 0
(J–37228)
Seal cutter Removing steel oil pan and front cover
KV10114400
(J-38365)
Heated oxygen sensor wrench Loosening or tightening air fuel ratio sensors
and heated oxygen sensors
a: 22 mm (0.87 in)
EG15050500
(J–45402)
Compression gauge adapter Inspection of compression pressure
KV10116200
(J–26336-A)
Valve spring compressor
1. KV10115900
(J–26336-20)
Attachment
2. KV10109220
(—)
Adapter Disassembling valve mechanism
Part (1) is a component of KV10116200
(J26336-A), but part (2) is not so.
KV10112100
(BT8653-A)
Angle wrench Tightening bolts for bearing cap, cylinder
head, etc.
KV10114700
(J–38139)
Main bearing cap remover Removing crankshaft main bearing cap
S-NT046
S-NT636
ZZA1225D
PBIC1650E
S-NT014
ZZA0023D
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-166
< SERVICE INFORMATION >[VK45DE]
PREPARATION
(—)
Valve guide driftRemoving and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer (1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d
1: 6.0 mm (0.236 in) dia.
d
2: 10.2 mm (0.402 in) dia.
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: J-43897-18 (18 mm dia.) for zirconia
heated oxygen sensor
b: J-43897-12 (12 mm dia.) for titania heat-
ed oxygen sensor
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
(Kent-Moore No.)
Tool name
Description
S-NT015
S-NT016
AEM488
AEM489
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

AIR CLEANER AND AIR DUCTEM-173
< SERVICE INFORMATION > [VK45DE]
C
D
E
F
G H
I
J
K L
M A
EM
NP
O
AIR CLEANER AND AIR DUCT
ComponentINFOID:0000000001325771
 Refer to
GI-8, "Component" for symbols in the figure.
Removal and InstallationINFOID:0000000001325772
REMOVAL
1. Remove engine cover with power tool. Refer to EM-169, "Component".
2. Disconnect harness connector from mass air flow sensor.
3. Disconnect vacuum hose and PCV hose.
4. Remove air duct (inlet), power duct, air cleaner case and mass air flow sensor assembly, air duct and res-
onator assembly disconnecting their joints.
 Add marks as necessary for easier installation.
5. Remove mass air flow sensor from air cleaner case. CAUTION:
Handle mass air flow sen sor with following cares.
 Do not shock it.
 Do not disassemble it.
 Do not touch its sensor.
1. Power duct 2. Blind plug 3. Clip
4. Air duct (inlet) 5. Air cleaner case 6. Mounting rubber
7. Resonator 8. Air cleaner filter 9. Air cleaner case
10. O-ring 11. Mass air flow sensor 12. Air duct and resonator assembly
13. Vacuum hose 14. PCV hose
A. To VIAS control solenoid valve B. To rocker cover (left bank)
PBIC4551E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C