sensor NISSAN TEANA 2008 Service Manual

IGNITION COIL, SPARK PLUG AND ROCKER COVER
EM-49
< ON-VEHICLE REPAIR >
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IGNITION COIL, SPARK PLUG AND ROCKER COVER
Exploded ViewINFOID:0000000003802267
Removal and InstallationINFOID:0000000003802268
REMOVAL
1. Remove the following parts:
 Engine cover: Refer to EM-24, "
Exploded View".
 Air cleaner cases (upper and lower) and air duct assembly: Refer to EM-26, "
Exploded View".
 Intake manifold collector: Refer to EM-28, "
Exploded View".
2. Disconnect PCV hose from rocker cover.
1. Ignition coil 2. Spark plug 3. PCV hose
4. Clamp 5. PCV valve 6. O-ring
7. Rocker cover (bank 1) 8. PCV hose 9. Rocker cover gasket (bank 1)
10. O-ring 11.Camshaft position sensor (PHASE)
(bank 1)12. Oil filler cap
13. Rocker cover (bank 2) 14. Rocker cover gasket (bank 2) 15.Camshaft position sensor (PHASE)
(bank 2)
16. PCV hose 17. Clamp
A. To intake manifold collector B. Refer to EM-49
C. Camshaft bracket side
D. To air duct assembly
Refer to GI-4, "
Components" for symbols in the figure.
JPBIA1637GB

EM-50
< ON-VEHICLE REPAIR >
IGNITION COIL, SPARK PLUG AND ROCKER COVER
3. Remove camshaft position sensor (PHASE) (bank 1 and bank
2).
CAUTION:
 Handle carefully to avoid dropping and shocks.
 Never disassemble
 Never allow metal powder to adhere to magnetic part at
sensor tip.
 Never place sensors in a location where they are exposed
to magnetism.
4. Remove PCV valve and O-ring from rocker cover, if necessary.
5. Remove oil filler cap from rocker cover, if necessary.
6. Remove ignition coil.
CAUTION:
Never shock ignition coil.
7. Remove harness clips on the rocker cover.
8. Loosen bolts in reverse order shown in the figure.
9. Remove rocker cover gasket from rocker cover.
10. Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1).
CAUTION:
Never scratch or damage the mating surface when cleaning off old liquid gasket.
INSTALLATION
A : Keep off any magnetic materials
: Engine front
JPBIA0454ZZ
JPBIA1634ZZ

EM-68
< REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
 Place chocks at front and back of rear wheels.
 For engines not equipped with engine slingers, attach proper slingers and bolts described in PARTS
CATALOG.
CAUTION:
 Always be careful to work safely, avoid forceful or uninstructed operations.
 Never start working until exhaust system and engine coolant are cool enough.
 If items or work required are not covered by the engine section, refer to the applicable sections.
 Always use the support point specified for lifting.
 Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
 For supporting points for lifting and jacking point at rear axle, refer to GI-30, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Outline
At first, remove the engine and the transaxle assembly with front suspension member downward. Then sepa-
rate the engine and the transaxle.
Preparation
1. Release fuel pressure. Refer to EC-411, "Inspection".
2. Drain engine coolant. Refer to CO-8, "
Draining".
CAUTION:
 Perform this step when the engine is cold.
 Never spill engine coolant on drive belt.
3. Remove the following parts:
 Engine cover: Refer to EM-24, "
Exploded View".
 Front road wheel and tires
 Splash guards (RH and LH): Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
 Air duct (inlet), air cleaner cases (upper and lower) with mass air flow sensor and air duct assembly:
Refer to EM-26, "
Exploded View".
 Battery and battery tray: Refer to PG-109, "
Removal and Installation".
 Drive belt: Refer to EM-12, "
Removal and Installation".
 Reservoir tank of radiator. Refer to CO-13, "
Exploded View".
 Front wiper arm: Refer to WW-105, "
Exploded View".
4. Disconnect engine room harness at the TCM, ECM and other sides.
CAUTION:
To keep clean harness connector and avoid damage and foreign materials, cover them completely
with plastic bags or something similar.
5. Remove battery bracket with ECM and TCM.
6. Remove extension cowl top. Refer to EXT-20, "
Exploded View".
Engine Room
1. Disconnect heater hoses. Refer to CO-25, "Exploded View".
 Install plug to avoid leakage of engine coolant.
2. Remove EVAP hose. Refer to EM-28, "
Exploded View".
3. Disconnect fuel feed hose quick connector at fuel tube side. Refer to EM-44, "
Exploded View".
 Install plug to avoid leakage of fuel.
4. Disconnect transaxle shift control cable at transaxle side. Refer to TM-319, "
Exploded View" (VQ25DE) or
TM-157, "
Exploded View" (VQ35DE).
5. Disconnect brake booster vacuum hose at engine side. Refer to EM-28, "
Exploded View".
6. Disconnect ground cable.
7. Disconnect A/C compressor piping at A/C compressor side. Refer to HA-36, "
Exploded View".
8. Disconnect suction hoses of power steering oil pump at reservoir tank side. Refer to ST-34, "
Exploded
View".
 Install plug to avoid leakage of power steering fluid.
9. Disconnect CVT fluid cooler hoses from radiator. Refer to CO-13, "
Exploded View".

ENGINE ASSEMBLY
EM-69
< REMOVAL AND INSTALLATION >
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10. Remove starter motor. Refer to STR-15, "VQ25DE : Exploded View" (VQ25DE) or STR-20, "VQ35DE :
Exploded View" (VQ35DE).
Vehicle Underbody
1. Remove front drive shafts (RH and LH). Refer to FAX-16, "Exploded View".
2. Remove exhaust front tube. Refer to EX-5, "
Exploded View".
3. Remove heat insulator.
4. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to ST-16, "
Exploded View".
5. Disconnect front stabilizer connecting rod. Refer to FSU-14, "
Exploded View".
6. Remove strut assembly and steering knuckle fixing nuts and bolts. Refer to FSU-9, "
Exploded View" and
FA X - 8 , "
Exploded View".
7. Remove front wheel sensor (RH and LH) for ABS from steering knuckle. Refer to BRC-57, "
FRONT
WHEEL SENSOR : Exploded View".
8. Remove front brake caliper assembly with piping connected, and temporarily secure it to aside for vehicle
side. Refer to BR-34, "
BRAKE CALIPER ASSEMBLY : Exploded View".
9. Disconnect power steering piping at a point between vehicle and engine. Refer to ST-34, "
Exploded
View".
 Install plug to avoid leakage of power steering fluid.
10. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-38, "
Exploded View" and TM-332, "Removal and Installation" (VQ25DE) or TM-168,
"Removal and Installation" (VQ35DE).
11. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to EM-38, "
Exploded
View".
12. Remove crankshaft position sensor (POS). Refer to EM-38, "
Exploded View".
CAUTION:
 Handle carefully to avoid dropping and shocks.
 Never disassemble.
 Never allow metal powder to adhere to magnetic part at sensor tip.
 Never place sensors in a location where they are exposed to magnetism.
Removal
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of front suspension member.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove engine mounting insulator (RH) and engine mounting bracket (RH).
3. Remove mounting bolt between transverse link and front suspension member with power tool.
4. Remove front suspension member mounting nuts and bolts. Refer to FSU-16, "
Exploded View".
5. Carefully lower jack, or raise lift to remove the engine and the transaxle assembly and front suspension
member. When performing work, observe the following caution:
CAUTION:
 Confirm there is no interference with the vehicle.
 Check all connection points have been disconnected.
 Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support the vehi-
cle at rear jacking point(s) to prevent it from falling it off the lift.
Separation
PBIC1190E

EM-84
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
CAMSHAFT
Exploded ViewINFOID:0000000003802283
Removal and InstallationINFOID:0000000003802284
REMOVAL
1. Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to EM-
52, "Exploded View" and EM-79, "Exploded View".
1. Camshaft bracket (No. 3, 4) 2. Camshaft bracket (No. 2) 3. Seal washer
4. Camshaft bracket (No. 1) 5. Dowel pin 6. Camshaft (EXH) (bank 1)
7. Camshaft (INT) (bank 1) 8. Valve lifter 9.Timing chain tensioner (secondary)
(bank 1)
10. Spring 11. Plunger 12.Timing chain tensioner (secondary)
(bank 2)
13. Cylinder head (bank 2) 14. Dowel pin 15. Camshaft sensor bracket
16. Camshaft (EXH) 17. Camshaft signal plate (INT) 18. Camshaft (INT)
19. Cylinder head (bank 1) 20. Camshaft signal plate (INT) 21. Camshaft sensor bracket
A. Refer to EM-84
Refer to GI-4, "Components" for symbols in the figure.
JPBIA1719GB

CAMSHAFT
EM-85
< DISASSEMBLY AND ASSEMBLY >
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2. Loosen camshaft sensor bracket bolts in reverse order as
shown in the figure.
NOTE:
The order of loosening bolts in the same for bank 1 and bank 2.
3. Remove camshaft brackets.
 Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for
installation.
 Equally loosen camshaft bracket bolts in several steps in
reverse order as shown in the figure.
4. Remove camshafts.
5. Remove valve lifters.
 Identify installation positions, and store them without mixing them up.
6. Remove timing chain tensioners (secondary) (1) from cylinder
head.
 Remove timing chain tensioner (secondary) with its stopper
pin (C) attached.
NOTE:
Stopper pin should be attached when timing chain (secondary)
is removed.
INSTALLATION
: Engine front
JPBIA1960ZZ
: Engine front
JPBIA0257ZZ
A: Bank 1
B: Bank 2
JPBIA0121ZZ

EM-88
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
5. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 7 to 10 in order as shown.
b. Tighten No. 1 to 6 in order as shown.
c. Tighten No. 1 to 10 in numerical order as shown.
d. Tighten No. 1 to 10 in numerical order as shown.
CAUTION:
After tightening mounting bolts of camshaft brackets (No.
1), be sure to wipe off excessive liquid gasket from the
parts list below.
 Mating surface of rocker cover
 Mating surface of rear timing chain case
6. Tighten camshaft sensor bracket bolts in numerical order as
shown in the figure.
NOTE:
The order of tightening bolts in the same for bank 1 and bank 2.
7. Measure difference in levels between front end faces of cam-
shaft bracket (No. 1) and cylinder head.
 Measure two positions (both intake and exhaust side) for a
single bank.
 If the measured value is out of the standard, reinstall camshaft
bracket (No. 1).
8. Inspect and adjust the valve clearance. Refer to EM-17, "
Inspection and Adjustment".
9. Install in the reverse order of removal after this step.
InspectionINFOID:0000000003802285
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on precise flat table, and support No. 2 and 4 journals of camshaft.
: Engine front
: 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 1.96 N·m (0.20 kg-m, 1 ft-lb)
: 5.88 N·m (0.60 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
: Engine front
JPBIA0257ZZ
JPBIA1960ZZ
Standard : −0.14 to 0.14 mm (−0.0055 to 0.0055 in)
EMQ0044D

EM-108
< DISASSEMBLY AND ASSEMBLY >
CYLINDER BLOCK
VQ35DE
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Cylinder block 5. Knock sensor 6. Sub harness
7. Thrust bearing (upper) 8. Main bearing (upper) 9. Crankshaft
10. Crankshaft key 11. Thrust bearing (lower) 12. Main bearing (lower)
13. Main bearing cap 14. Main bearing cap bolt 15. Main bearing beam
16. Baffle plate 17. Connecting rod bolt 18. Connecting rod bearing cap
19. Connecting rod bearing 20. Connecting rod 21. Snap ring
22. Piston pin 23. Piston 24. Oil ring
25. Second ring 26. Top ring 27. Pilot converter
A. Crankshaft side B. Chamfered C. Refer to EM-110
D. Front mark
Refer to GI-4, "
Components" for symbols in the figure.

CYLINDER BLOCK
EM-109
< DISASSEMBLY AND ASSEMBLY >
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1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Sub harness 5. Knock sensor 6. Cylinder block
7. Thrust bearing (upper) 8. Main bearing (upper) 9. Crankshaft
10. Crankshaft key 11. Thrust bearing (lower) 12. Main bearing (lower)
13. Main bearing cap 14. Main bearing cap bolt 15. Main bearing beam
16. Baffle plate 17. Connecting rod bolt 18. Connecting rod bearing cap
JPBIA2237GB

EM-110
< DISASSEMBLY AND ASSEMBLY >
CYLINDER BLOCK
Disassembly and Assembly
INFOID:0000000003802294
DISASSEMBLY
1. Remove the following parts:
 Intake manifold collector: Refer to EM-28, "
Exploded View".
 Intake manifold: Refer to EM-32, "
Exploded View".
 Oil pans (lower and upper): Refer to EM-38, "
Exploded View".
 Front and rear timing chain case: Refer to EM-79, "
Exploded View".
 Cylinder head: Refer to EM-96, "
Exploded View".
2. Remove knock sensor.
CAUTION:
Carefully handle sensor avoiding shocks.
3. Remove rear oil seal retainer.
 Remove by inserting screwdriver between main bearing cap and rear oil seal retainer.
CAUTION:
If rear oil seal retainer is removed, replace it with new one.
NOTE:
Regard both rear oil seal and retainer as an assembly.
4. Remove baffle plate from main bearing beam.
5. Remove piston and connecting rod assembly with the following procedure:
 Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-119, "
Inspection".
CAUTION:
Be careful not to drop connecting rod bearing, and to scratch the surface.
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod bearing cap.
c. Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.
6. Remove connecting rod bearings from connecting rod and connecting rod bearing cap.
CAUTION:
 Be careful not to drop connecting rod bearing, and to scratch the surface.
 Identify installation positions, and store them without mixing them up.
7. Remove piston rings form piston.
 Before removing piston rings, check the piston ring side clearance. Refer to EM-119, "
Inspection".
19. Connecting rod bearing 20. Connecting rod 21. Snap ring
22. Piston pin 23. Piston 24. Oil ring
25. Second ring 26. Top ring 27. Pilot converter
28. Oil jet
A. Crankshaft side B. Chamfered C. Refer to EM-110
D. Front mark
Refer to GI-4, "
Components" for symbols in the figure.
EMQ0191D