seal INFINITI FX35 2008 Service Manual

EM-82
< SERVICE INFORMATION >[VQ35DE]
TIMING CHAIN
e. Further tighten by 90 degrees. (Angle tightening)
 Check the tightening angle by referencing to the notches. Theangle between two notches is 90 degrees.
19. Rotate crankshaft pulley in normal direction (clock wise when viewed from front) to confirm it turns
smoothly.
20. For the following operations, perform steps in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak. Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to GI-44, "
Recommended Chemical Product and Sealant".
 Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
 Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside chain tensioner drops af ter removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.
 Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil and engine coolant.
 Bleed air from lines and hoses of applic able lines, such as in cooling system.
 After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
PBIC4821E
Items Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
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CAMSHAFTEM-83
< SERVICE INFORMATION > [VQ35DE]
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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
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CAMSHAFTEM-89
< SERVICE INFORMATION > [VQ35DE]
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4. Install camshaft brackets.
 Remove foreign material completely from camshaft bracketbackside and from cylinder head installation face.
 Install camshaft bracket in original position and direction as shown in figure.
 Install camshaft brackets (No. 2 to 4) aligning the stamp marks
as shown in the figure.
NOTE:
There are no identification marks indicating left and right for
camshaft bracket (No. 1).
 Apply liquid gasket to mating surface of camshaft bracket (No. 1) as shown on both right and left banks.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
PBIC2051E
PBIC2052E
PBIC2660E
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OIL SEALEM-97
< SERVICE INFORMATION > [VQ35DE]
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OIL SEAL
Removal and Installation of Valve Oil SealINFOID:0000000001325734
REMOVAL
1. Remove camshaft relating to valve oil seal to be removed. Refer to
EM-83, "Component".
2. Remove valve lifters. Refer to EM-83, "
Component".
3. Turn crankshaft until the cylinder requiring new oil seal s is at TDC. This will prevent valve from dropping
into cylinder.
4. Remove valve collet.  Compress valve spring with the valve spring compressor, theattachment, the adapter (SST). Remove valve collet with a
magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
5. Remove valve spring retainer, and valve spring.
6. Remove valve oil seal using the valve oil seal puller (SST).
INSTALLATION
1. Apply new engine oil on new valve oil seal joint and seal lip.
2. Using the valve oil seal drift (SST), press fit valve seal to height “H” shown in figure.
NOTE:
Dimension “H”: Height measured before valve spring seat instal-
lation
3. Install in the reverse order of removal after this step.
Removal and Installati on of Front Oil SealINFOID:0000000001325735
REMOVAL
1. Remove the following parts:
 Undercover
 Drive belts: Refer to EM-15, "
Removal and Installation".
 Crankshaft pulley: Refer to EM-64, "
Component".
PBIC1803E
PBIC0884E
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
PBIC2769E
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EM-98
< SERVICE INFORMATION >[VQ35DE]
OIL SEAL
2. Remove front oil seal using a suitable tool.
CAUTION:
Be careful not to damage front timing chain case and crank-
shaft.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.
2. Install front oil seal. Install front oil seal so that each seal lip is oriented as shown in
the figure.
 Using a suitable drift, press-fit until the height of front oil seal is level with the mounting surface.
- Suitable drift: outer diameter 60 mm (2.36 in), inner diameter
50 mm (1.97 in).
 Make sure the garter spring is in position and seal lips not inverted
CAUTION:
 Be careful not to damage front timing chain case and
crankshaft.
 Press-fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
Removal and Installation of Rear Oil SealINFOID:0000000001325736
REMOVAL
1. Remove oil pan (upper). Refer to EM-30, "Component (2WD Models)".
2. Remove transmission assembly. Refer to AT-241, "
Removal and Installation (2WD Models)".
3. Remove drive plate. Refer to EM-122, "
Component".
4. Use a seal cutter (SST) to cut away liquid gasket and remove rear oil seal retainer.
CAUTION:
Be careful not to damage mounting surface.
NOTE:
Regard both rear oil seal and retainer as an assembly.
SEM829E
SEM715A
SEM829E
SEM830E
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OIL SEALEM-99
< SERVICE INFORMATION > [VQ35DE]
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INSTALLATION
1. Remove old liquid gasket on mating surfaces of cylinder block and oil pan (upper) using a scraper.
2. Apply new engine oil to both oil seal lip and dust seal lip of new rear oil seal retainer.
3. Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to rear oil seal retainer as shown in the
figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
 Assembly should be done within 5 minutes after coating.
4. Install rear oil seal retainer to cylinder block. Refer to EM-122, "
Component".
 Make sure the garter spring is in position and seal lips not inverted.
5. Install in the reverse order of removal after this step.
PBIC2661E
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EM-102
< SERVICE INFORMATION >[VQ35DE]
CYLINDER HEAD
Temporary fitting means the status that engine is
adequately stable though the hoist is released
from hanging.
NOTE:
At the time of the start of this procedure front suspension member is removed, and cylinder head is
hanged by hoist with the engine slinger installed.
3. Release the hoist from hanging, then remove the engine slinger.
4. Remove the following parts:  Fuel tube and fuel injector assembly: Refer to EM-45, "
Component".
 Intake manifold: Refer to EM-24, "
Component".
 Exhaust manifold: Refer to EM-26, "
Component".
 Water inlet and thermostat assembly: Refer to CO-27, "
Component".
 Water outlet, water pipe and heater pipe: Refer to CO-29, "
Component".
5. Remove cylinder head bolts in reverse order as shown in the fig- ure with cylinder head bolt wrench (commercial service tool) and
power tool to remove cylinder heads (right and left banks).
6. Remove cylinder head gaskets.
INSPECTION AFTER REMOVAL
Cylinder Head Bolt s Outer Diameter
 Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with new one.
 If reduction of outer diameter appear s in a position other than “d2”,
use it as “d2” point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-138, "
Inspec-
tion After Disassembly".
1. Using a scraper, wipe off oil, scale, gasket, seal ant and carbon deposits from surface of cylinder head.
CAUTION:
Do not allow gasket fragme nts to enter engine oil or engine coolant passages.
PBIC2057E
Limit (“d1” – “d2”) : 0.11 mm (0.0043 in)
PBIC2480E
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CYLINDER HEADEM-105
< SERVICE INFORMATION > [VQ35DE]
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Disassembly and AssemblyINFOID:0000000001325740
DISASSEMBLY
1. Remove spark plug with spark plug wrench (commercial service tool).
2. Remove valve lifter.
 Identify installation positions, and store them without mixing them up.
3. Remove valve collet.  Compress valve spring with the valve spring compressor, theattachment and the adapter (SST). Remove valve collet with a
magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
4. Remove valve spring retainer, valve spring and valve spring seat.
5. Push valve stem to combustion chamber side, and remove valve.  Identify installation positions, and store them without mixing them up.
1. Valve lifter 2. Valve collet 3. Valve spring retainer
4. Valve spring 5. Valve oil seal 6. Valve spring seat
7. Valve guide 8. Spark plug 9. Spark plug tube
10. Cylinder head (right bank) 11. Valve seat 12. Valve (EXH)
13. Valve (INT) 14. Cylinder head (left bank)
PBIC2637E
PBIC1803E
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EM-106
< SERVICE INFORMATION >[VQ35DE]
CYLINDER HEAD
6. Remove valve oil seal using the valve oil seal puller (SST).
7. If valve seat must be replaced, refer to
EM-107, "
Inspection After Disassembly".
8. If valve guide must be replaced, refer to EM-107, "
Inspection After Disassembly".
9. Remove spark plug tube, as necessary.  Using a pliers, pull spark plug tube out of cylinder head.
CAUTION:
 Take care not to damage cylinder head.
 Once removed, spark plug tube will be deformed and cannot be reused. Do not remove it unless
absolutely necessary.
ASSEMBLY
1. When valve guide is removed, install it. Refer to EM-107, "Inspection After Disassembly".
2. When valve seat is removed, install it. Refer to EM-107, "
Inspection After Disassembly".
3. Install new valve oil seals as follows:
a. Apply new engine oil on valve oil seal joint and seal lip.
b. Install with the valve oil seal drift (SST) to match dimension in the figure.
4. Install valve spring seat.
5. Install valve.  Larger diameter valves are for intake side.NOTE:
Larger diameter valves are for intake side.
6. Install valve spring (uneven pitch type).  Install narrow pitch end (paint mark) to cylinder head side(valve spring seat side).
 Intake side and exhaust side valve springs are different. Install
them referring to the following paint mark collar.
7. Install valve spring retainer.
PBIC0884E
Height “H” (Without valve spring seat installed) Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
PBIC2769E
Paint mark collarIntake and Exhaust : Blue
SEM085D
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CYLINDER HEADEM-107
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8. Install valve collet.
 Compress valve spring with the valve spring compressor, theattachment and the adapter (SST). Install valve collet with a
magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
 Tap valve stem edge lightly with plastic hammer after installa- tion to check its installed condition.
9. Install valve lifter.  Install it in the original position.
10. Install spark plug tube.  Press-fit spark plug tube as follows:
a. Remove old liquid gasket adhering to cylinder head mounting hole.
b. Apply sealant to area within approximately 12 mm (0.47 in) from edge of spark plug tube press-fit side.
Use Genuine High Strength Locking Sealant or equivalent. Refer to GI-44
.
c. Using drift, press-fit spark plug tube so that its height “H” is as specified in the figure.
CAUTION:
 When press-fitting, take care not to deform spark plugtube.
 After press-fitting, wipe o ff liquid gasket protruding onto
cylinder-head upper face.
11. Install spark plug with spark plug wrench (commercial service tool).
Inspection After DisassemblyINFOID:0000000001325741
VALVE DIMENSIONS
 Check the dimensions of each valv e. For the dimensions, refer to EM-149, "Standard and Limit".
 If dimensions are out of the standard, replace valve and check valve seat contact. Refer to "VALVE SEAT
CONTACT".
VALVE GUIDE CLEARANCE
Valve Stem Diameter
Measure the diameter of va lve stem with micrometer.
Valve Guide Inner Diameter
Measure the inner diameter of valve guide with an inside micrometer.
PBIC1803E
Standard press-fit height “H”:
: 38.1 - 39.1 mm (1.500 - 1.539 in)
PBIC2638E
StandardIntake : 5.965 - 5.980 mm (0.2348 - 0.2354 in)
Exhaust : 5.955 - 5.970 mm (0.2344 - 0.2350 in)
SEM938C
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