clock INFINITI FX35 2005 Workshop Manual

EM-94
[VQ35DE]
CAMSHAFT
Revision: 2005 July 2005 FX
b. Use a feeler gauge, measure the clearance between valve lifter
and camshaft.
Valve clearance:
Unit: mm (in)
*: Approximately 80 °C (176 °F)

By referring to the figure, measure the valve clearances at
locations marked “ ×” as shown in the table below (locations
indicated in the figure).

No. 1 cylinder at compression TDC
c. Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 3 cylinder at TDC of its compression
stroke.
NOTE:
Crankshaft pulley mounting bolt flange has a stamped line every
60 degrees. They can be used as a guide to rotation angle.
SEM139D
Items Cold Hot * (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 1 cylinder at
compression TDC EXH
×
INT ×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 1 cylinder at
compression TDC INT
×
EXH ×
PBIC2054E
SEM751G

CAMSHAFT EM-95
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By referring to the figure, measure the valve clearances at
locations marked “ ×” as shown in the table below (locations
indicated in the figure).

No. 3 cylinder at compression TDC
d. Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 5 cylinder at TDC of compression
stroke.

By referring to the figure, measure the valve clearances at
locations marked “ ×” as shown in the table below (locations
indicated in the figure).

No. 5 cylinder at compression TDC
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 3 cylinder at
compression TDC EXH
×
INT ×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 3 cylinder at
compression TDC INT
×
EXH ×
PBIC2055E
SEM751G
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 5 cylinder at
compression TDC EXH
×
INT ×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 5 cylinder at
compression TDC INT
×
EXH ×
PBIC2056E

EM-104
[VQ35DE]
CYLINDER HEAD
Revision: 2005 July 2005 FX
e. Turn all cylinder head bolts 90 degrees clockwise (angle tighten-
ing).
CAUTION:
Check the tightening angle by using the angle wrench
[SST]. Avoid judgment by visual inspection without SST.

Check tightening angle indicated on the angle wrench indica-
tor plate.
f. Turn all cylinder head bolts 90 degrees clockwise again (angle tightening).
4. After installing cylinder head, measure distance between front end faces of cylinder block and cylinder head (left and right
banks).

If measured value is out of the standard, re-install cylinder
head.
5. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED 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
leakage at connection points.
–Start engine. With engine speed increased, check 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 leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable 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.
PBIC0888E
Standard : 14.1 - 14.9 mm (0.555 - 0.587 in)
EMQ0662D
Item 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 —

EM-130
[VQ35DE]
CYLINDER BLOCK
Revision: 2005 July 2005 FX

Main bearing caps are identified by identification mark cast on
them. For installation, face front mark to front side.
NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.
7. Install main bearing beam.

Install main bearing beam with front mark facing downward (oil pan side).

Install main bearing beam with front mark facing front of the
engine.
8. Install main bearing cap bolts in numerical order as shown in the figure as follows:
a. Inspect the outer diameter of main bearing cap bolt. Refer to EM-148, "
MAIN BEARING CAP BOLT OUTER DIAMETER" .
b. Apply new engine oil to threads and seat surfaces of main bear- ing cap bolts.
c. Tighten main bearing cap bolts in several different steps.
d. Turn all main bearing cap bolts 90 degrees clockwise (Angle tightening).
CAUTION:
Use the angle wrench [SST: KV10112100 (BT8653-A)] to
check tightening angle. Do not make judgment by visual
inspection.

After installing main bearing cap bolts, make sure that crank-
shaft can be rotated smoothly by hand.

Check the crankshaft end play. Refer to EM-140, "CRANK-
SHAFT END PLAY" .
9. Install piston to connecting rod as follows:
a. Using a snap ring pliers, install new snap ring to the groove of piston rear side.

Insert it fully into groove to install.
b. Install piston to connecting rod.

Using an industrial use drier or similar tool, heat piston until piston pin can be pushed in by hand without
excess force [approx. 60 to 70 °C (140 to 158 °F)]. From the front to the rear, insert piston pin into piston
and connecting rod.
SEM456G
PBIC0881E
: 35.3 N·m (3.6 kg-m, 26 ft-lb)
PBIC1800E
PBIC0921E

CYLINDER BLOCK EM-133
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d. Then tighten all connecting rod bolts 90 degrees clockwise
(Angle tightening).
CAUTION:
Always use the angle wrench [SST: KV10112100 (BT8653-
A)]. Avoid tightening based on visual check alone.

After tightening connecting rod bolts, make sure that crank-
shaft rotates smoothly.

Check the connecting rod side clearance. Refer to EM-140,
"CONNECTING ROD SIDE CLEARANCE" .
15. Install baffle plate to main bearing beam (2WD models).
16. Install new rear oil seal retainer to cylinder block.

Apply new engine oil to both oil seal lip and dust seal lip.

Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 ( — )] to rear oil seal retainer as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
CAUTION:

Replace with a new parts.

Attaching should be done within 5 minutes after coating.

Make sure the garter spring is in position and seal lips
not inverted.
NOTE:
Regard both rear oil seal and retainer as an assembly.
17. Install pilot converter.

With a drift [outer diameter: approx. 33 mm (1.30 in)], press-fit
as far as it will go.

Press-fit pilot converter with its chamfer facing crankshaft as
shown in the figure.
SEM953E
PBIC2661E
PBIC0899E
SEM537E

DRIVE BELTS EM-173
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DRIVE BELTSPFP:02117
ComponentsABS00DFL
Checking Drive BeltsABS006I7
WARNING:
Be sure to perform when engine is stopped.

Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.

Remove front engine undercover with power tool when inspecting power steering oil pump belt.

Make sure that indicator (single line notch) of each auto tensioner is within the allowable working range
(between three line notches).
NOTE:

Check auto tensioner indication when engine is cold.

When new drive belt is installed, the range should be “A”.

The indicator notch is located on the moving side of auto tensioner for alternator, water pump and A/C
compressor belt, while it is found on the fixed side for power steering oil pump belt.

Visually check entire belt for wear, damage or cracks.

If the indicator is out of allowable working range or belt is damaged, replace belt.
Tension AdjustmentABS006I8
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Removal and InstallationABS006I9
REMOVAL
Alternator, Water Pump and A/C Compressor Belt
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. With box wrench, and while securely holding the hexagonal part in pulley center of auto tensioner, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:

Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.

Do not loosen the hexagonal part in center of drive belt
auto–tensioner pulley (Do not turn it clockwise). If turned
clockwise, the complete drive belt auto–tensioner must
be replaced as a unit, including the pulley.
PBIC2331E
PBIC2976E

DRIVE BELTS EM-175
[VK45DE]
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ComponentsABS00DFM
CAUTION:
The complete drive belt auto–tensioner must be replaced as a unit, including the pulley.
Drive Belt Auto Tensioner and Idler PulleyABS006IA
REMOVAL
1. Remove air duct (inlet). Refer to EM-176, "AIR CLEANER AND AIR DUCT" .
2. Remove front engine undercover with power tool.
3. Remove drive belts. Refer to EM-173, "
Removal and Installation" .

Keep auto tensioner pulley arm locked after belt is removed.
4. Remove auto tensioner and idler pulley with power tool.

Keep auto tensioner pulley arm locked to install or remove auto tensioner.
CAUTION:
Do not loosen the hexagonal part in center of drive belt auto–tensioner pulley (Do not turn it clock-
wise). If turned clockwise, the complete drive belt auto–tensioner must be replaced as a unit,
including the pulley.
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Do not swap the pulley between new and old drive belt auto–tensioner.
1. Auto tensioner ( Used for alternator,
water pump and A/C compressor) 2. Idler pulley 3. Auto tensioner (Used for power
steering oil pump belt)
PBIC2788E

EM-202
[VK45DE]
TIMING CHAIN
Revision: 2005 July 2005 FX
5. Remove intake valve timing control cover as follows:
a. Loosen and remove mounting bolts in the reverse order as shown in the figure.
b . U s 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 ) ] t o c u t l i q u i d g a s k e t for removal.
CAUTION:

Exercise care not to damage mating surfaces.

Pull out cover keeping levelness without an angle, as
inner part of cover is engaged with the center of camshaft
sprocket (INT).
6. Remove O-rings from front cover.
7. Obtain No. 1 cylinder at TDC of its compression stroke as follows:
a. Rotate crankshaft pulley clockwise to align the TDC identifica- tion notch (without paint mark) with timing indicator on front
cover.
b. Make sure that both intake and exhaust cam noses of No. 1 cyl- inder (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.
8. Remove crankshaft pulley as follows:
PBIC0051E
SBIA0374E
PBIC2341E
KBIA0400J

TIMING CHAIN EM-211
[VK45DE]
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f. Further tighten by 90 degrees. (Angle tightening)

Check the tightening angle by referencing to the notches. The
angle between two notches is 90 degrees.
15. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns smoothly.
16. Install in the reverse order of removal after this step. NOTE:
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 including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-12, "
RECOMMENDED 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
leakage at connection points.
–Start engine. With engine speed increased, check 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 leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable 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.
PBIC2346E
Item 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 —

CAMSHAFT EM-219
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Revision: 2005 July 2005 FX
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 rotating 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 components 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-23, "
LUBRICATION SYSTEM" .
5. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT), and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to LU-23, "LUBRICATION SYSTEM" .
6. After inspection, install removed parts.
Va l v e C l e a r a n c eABS006IL
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 during starting, idling or causing noise), perform
inspection as follows:
1. Remove rocker covers (right and left bank). Refer to EM-197, "
ROCKER COVER" .
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