Infiniti FX35 / FX45. Manual - part 643

 

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Infiniti FX35 / FX45. Manual - part 643

 

 

CAMSHAFT

EM-89

< SERVICE INFORMATION >

[VQ35DE]

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4.

Install camshaft brackets.
• Remove foreign material completely from camshaft bracket

backside 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 Sealant or equivalent. Refer to

GI-44, "Recommended Chemical Product and Sealant"

.

PBIC2051E

PBIC2052E

PBIC2660E

EM-90

< SERVICE INFORMATION >

[VQ35DE]

CAMSHAFT

5.

Tighten camshaft bracket bolts in the following steps, in numeri-
cal order as shown.

a.

Tighten No. 7 to 10 in numerical order as shown.

b.

Tighten No. 1 to 6 in numerical 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.

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, re-install cam-

shaft bracket (No. 1).

7.

Inspect and adjust the valve clearance. Refer to 

EM-91, "Valve Clearance"

.

8.

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 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-117,

"CONSULT-III Function (ENGINE)"

.

• Check when engine ins cold so as to prevent burns from any splashing engine oil.
1.

Check the engine oil level. Refer to 

LU-5, "Inspection"

.

2.

Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.

a.

Release fuel pressure. Refer to 

EC-87, "Fuel Pressure Check"

.

b.

Disconnect ignition coil and injector harness connectors.

3.

Remove intake valve timing control solenoid valve. Refer to 

EM-83, "Component"

.

 : 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)

PBIC2050E

Standard

: –0.14 to 0.14 mm (–0.006 to 0.006 in) 

EMQ0044D

CAMSHAFT

EM-91

< SERVICE INFORMATION >

[VQ35DE]

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4.

Crank the engine, and then make sure that engine oil comes out
from camshaft bracket (No. 1) oil hole. End crank after checking.

WARNING:

Be careful not to touch rotating parts (drive belts, 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 camshaft bracket (No. 1) oil hole. Refer to 

LU-4, "Lubrication Circuit"

.

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-4, "Lubrication Circuit"

.

6.

After inspection, install removed parts.

Inspection for Leaks

The following are procedures for checking fluids leak, lubricates 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-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, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. 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 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.

Valve Clearance

INFOID:0000000001325733

INSPECTION

Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.

PBIC2869E

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

EM-92

< SERVICE INFORMATION >

[VQ35DE]

CAMSHAFT

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 stating, idling or causing
noise), perform inspection as follows:

1.

Remove rocker covers (right and left bank). Refer to 

EM-51, "Component"

.

2.

Measure the valve clearance as follows:

a.

Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley clockwise to align timing mark

(grooved line without color) with timing indicator.

• Make sure that intake and exhaust cam nose on No. 1 cylinder

(engine front side of right bank) are located as shown in the
figure.

• If not, turn crankshaft one revolution (360 degrees) and align

as shown in the figure.

b.

Use a feeler gauge, measure the clearance between valve lifter
and camshaft.

Valve clearance:

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

SEM713A

KBIA1717J

SEM418G

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)

 

 

 

 

 

 

 

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