2008 INFINITI FX35 engine oil

EM-210
< SERVICE INFORMATION >[VK45DE]
TIMING CHAIN
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in guide may gen-
erate a pounding noise during and just after engine start. However, this does not indicate an unusualness.
Noise will stop after hydraulic pressure rises.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The followings are procedures for checking fluids leak, lubricates leak and exhaust gases 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 MA-9, "
Fluids and Lubricants"
 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.
 Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gases, or any oil/fluids includ-
ing 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. 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
Exhaust gases — Leakage —
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CAMSHAFTEM-217
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4. Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown in the figure.
a. Tighten No. 9 to 12 in numerical order as shown.
b. Tighten No. 1 to 8 in numerical order as shown.
c. Tighten No. 13 to 14 in numerical order as shown. (Left bank only)
d. Tighten all bolts in numerical order as shown.
e. Tighten No. 1 to 12 in numerical order as shown.
f. Tighten No. 13 to 14 in numerical order as shown. (Left bank only)
CAUTION:
After tightening mounting bolts of camshaft br ackets, be sure to wipe off excessive liquid gasket
from the parts listed below.
 Mating surface of rocker cover
 Mating surface of front cover
5. Install camshaft sprockets.  Install by checking with identification mark on surface.
 Install camshaft sprocket (EXH) by selectively using thegroove of dowel pin according to the bank. (Common part
used for both banks.)
 Lock the hexagonal part of camshaft in the same way as for
removal, and tighten mounting bolts.
6. Check and adjust the valve clearance. Refer to EM-218, "
Valve Clearance".
7. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
 Perform this inspection only when DTC P0011 and/ or P0021 are detected in self-diagnostic results of
CONSULT-III and it is directed according to inspection procedure of EC section. Refer to EC-666,
"Trouble Diagnosis Introduction".
 Check when the engine is cold so as to prevent burns from any splashing engine oil.
1. Check the engine oil level. Refer to LU-23, "
Inspection".
2. Perform the following procedure so as to prev ent the engine from being unintentionally started while
checking. : 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 1.96 N·m (0.2 kg-m, 1 ft-lb)
: 5.88 N·m (0.6 kg-m, 4 ft-lb)
: 10.41 N·m (1.1 kg-m, 8 ft-lb)
: 31.35 N·m (3.2 kg-m, 23 ft-lb)
PBIC0031E
PBIC2345E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-218
< SERVICE INFORMATION >[VK45DE]
CAMSHAFT
a. Release fuel pressure. Refer to
EC-665, "Fuel Pressure Check".
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-199, "
Component".
4. Crank the engine, and then make sure that engine oil comes out from intake valve timing control cover oil hole. End crank after
checking.
WARNING:
Be careful not to touch rotati ng parts (drive belt, idler pul-
ley, and crankshaft pulley, etc.).
CAUTION:
Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine co mponents and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mount insulators. Immediately wipe off
any splashed engine oil.
 Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not come out from intake valve timing control cover oil hole. Refer to LU-21, "
Lubrication Circuit".
5. Remove components between intake valve timing c ontrol solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.
 Clean oil groove if necessary. Refer to LU-21, "
Lubrication Circuit".
6. After inspection, install removed parts.
Valve ClearanceINFOID:0000000001325792
INSPECTION
In cases of removing/installing or replacing camshaft and valve-related parts, or of unusual engine conditions
due to changes in valve clearance (found malfunctions dur ing starting, idling or causing noise), perform
inspection as follows:
1. Remove rocker covers (right and left bank). Refer to EM-196, "
Component".
2. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.  Rotate crankshaft pulley in clockwise to align TDC identifica-
tion notch (without paint mark) with timing indicator on front
cover.
 Make sure that both intake and exhaust cam noses of No. 1 cylinder (engine front side of left bank) are located as shown in
the figure.
 If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.
PBIC2848E
PBIC2341E
KBIA0400J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-222
< SERVICE INFORMATION >[VK45DE]
OIL SEAL
OIL SEAL
Removal and Installation
of Valve Oil SealINFOID:0000000001325793
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-237, "Component".
2. Remove camshaft relating to valve oil seal to be removed. Refer to EM-211, "
Component".
3. Remove valve lifters. Refer to EM-211, "
Component".
 Identify installation positions, and store them without mixing them up.
4. Turn crankshaft until the cylinder requiring new oil seal s is at TDC. This will prevent valve from dropping
into cylinder.
5. Remove valve collet.  Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Remove valve collet with magnetic
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
6. Remove valve spring retainer and valve spring (with valve spring seat). CAUTION:
Do not remove valve spring seat from valve spring.
7. Remove valve oil seal using valve oil seal puller (SST).
INSTALLATION
1. Apply new engine oil on new valve oil seal joint and seal lip.
2. Install valve oil seal.  Install with valve oil seal drift (SST) to match dimension in the
figure.
3. Install in the reverse order of removal.
Removal and Installation of Front Oil SealINFOID:0000000001325794
REMOVAL
PBIC2360E
PBIC0072E
PBIC0073E
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OIL SEALEM-223
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1. Remove the following parts:
 Front engine undercover
 Radiator: Refer to CO-40, "
Component".
 Drive belt: Refer to EM-170, "
Component".
 Cooling fan: Refer to CO-48, "
Component (Crankshaft Driven type)".
 Rear plate cover: Refer to EM-183, "
Component".
2. Remove crankshaft pulley as follows:
a. Set ring gear stopper (SST).
b. Loosen crankshaft pulley bolt, and then pull crankshaft pulley with both hands to remove it.
CAUTION:
 Do not remove crankshaft pulley bolt. Keep loosenedcrankshaft pulley bolt in place to protect removed crank-
shaft pulley from dropping.
 Do not remove balance weight (inner hexagon bolt) at the
front of crankshaft pulley.
3. Remove front oil seal using suitable tool. CAUTION:
Be careful not to damage front cover and oil pump drive
spacer.
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.
PBIC1656E
SBIA0358E
SBIA0359E
SEM715A
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EM-224
< SERVICE INFORMATION >[VK45DE]
OIL SEAL
 Using front oil seal drift, press fit until the height of front oil seal
is level with the mounting surface.
 Make sure the garter spring is in position and seal lips not inverted.
CAUTION:
 Be careful not to damage front cover and oil pump drive spacer.
 Press fit straight and avoid cau sing burrs or tilting oil seal.
3. Install in the reverse order of removal.
Removal and Installation of Rear Oil SealINFOID:0000000001325795
REMOVAL
1. Remove transmission (with transfer) assembly. Refer to AT-241, "Removal and Installation (2WD Mod-
els)".
a. Remove drive plate. Refer to EM-241, "
Component".
b. Remove engine rear plate. Refer to EM-241, "
Component".
2. Remove rear oil seal using suitable tool. CAUTION:
Be careful not to damage crankshaft and oil seal retainer
surface.
INSTALLATION
1. Apply new engine oil to both oil seal lip and dust seal lip of new rear oil seal.
2. Install rear oil seal. Install rear oil seal so that each seal lip is oriented as shown inthe figure.Front oil seal drift
Outer diameter : 56 mm (2.20 in)
Inner diameter : 49 mm (1.93 in)
SBIA0359E
SBIA0360E
SEM715A
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

EM-226
< SERVICE INFORMATION >[VK45DE]
CYLINDER HEAD
CYLINDER HEAD
On-Vehicle ServiceINFOID:0000000001325796
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to
EC-665, "
Fuel Pressure Check".
a. Remove fuel pump fuse to avoid fuel injection during measure- ment.
3. Remove engine cover with power tool. Refer to EM-169, "
Component".
4. Remove ignition coil and spark plug from each cylinder. Refer to EM-187, "
Component" and EM-188,
"Component".
5. Connect engine tachometer (not required in use of CONSULT-III).
6. Install compression gauge with adapter (SST or commercial ser- vice tool) onto spark plug hole.
 Use compression gauge adapter (SST) which is required onNo. 7 and 8 cylinders.
 Use compression gauge adapter (if no SST is used) whose picking up end inserted to spark plug hole is smaller than 20
mm (0.79 in) in diameter. Otherwise, it may be caught by cylin-
der head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge pointer stabilizes, read the compression pressure and engine rpm. Perform these steps to check each cyl-
inder.
Compression pressure:
Unit: kPa (kg/cm2, psi)/rpm
CAUTION:
Always use a fully changed battery to obtain the specified engine speed.
PBIB1482E
PBIC1554E
SBIA0533E
Standard Minimum Deferential limit between cylinders
1,320 (13.5, 191)/300 1,130 (11.5, 164)/300 98 (1.0, 14)/300
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CYLINDER HEADEM-227
< SERVICE INFORMATION > [VK45DE]
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 If the engine speed is out of specified range, check
battery liquid for proper gravity. Check engine speed
again with normal battery gravity.
 If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, pi ston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.
 If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
- If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the piston rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal- functioning. Check valves for damage. Repl ace valve or valve seat accordingly.
 If two adjacent cylinders have respectively low compression pressure and their compression remains low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-666, "
Trouble Diagnosis Introduction".
ComponentINFOID:0000000001325797
Removal and InstallationINFOID:0000000001325798
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-237, "Component".
2. Remove exhaust manifold. Refer to EM-179, "
Component".
3. Remove camshaft. Refer to EM-211, "
Component".
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2756E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C