2005 INFINITI FX35 Service Manual

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Page 2937 of 4731

INFINITI FX35 2005 Service Manual EM-102
[VQ35DE]
CYLINDER HEAD
Revision: 2005 July 2005 FX
CAUTION:
Temporary fitting means the status that engine is adequately stable though the hoist is released
from hanging.
NOTE:
At the time o

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INFINITI FX35 2005 Service Manual CYLINDER HEAD EM-103
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1. Using a scraper, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder

Page 2939 of 4731

INFINITI FX35 2005 Service Manual 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
[

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 —

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INFINITI FX35 2005 Service Manual CYLINDER HEAD EM-105
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Revision: 2005 July 2005 FX
Disassembly and AssemblyABS004X9
COMPONENTS
DISASSEMBLY
1. Remove spark plug with spark plug wrench (

Page 2941 of 4731

INFINITI FX35 2005 Service Manual EM-106
[VQ35DE]
CYLINDER HEAD
Revision: 2005 July 2005 FX
6. Remove valve oil seal using the valve oil seal puller [SST].
7. If valve seat must be replaced, refer to EM-109, "
VALVE SEAT REPLACEMENT

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INFINITI FX35 2005 Service Manual CYLINDER HEAD EM-107
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8. Install valve collet.
Compress valve spring with the valve spring compressor, the
attachment and

Page 2943 of 4731

INFINITI FX35 2005 Service Manual EM-108
[VQ35DE]
CYLINDER HEAD
Revision: 2005 July 2005 FX
Valve Guide Clearance
(Valve guide clearance) = (Valve guide inner diameter) – (Valve stem diameter)
If the calculated value exceeds the li

Page 2944 of 4731

INFINITI FX35 2005 Service Manual CYLINDER HEAD EM-109
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Revision: 2005 July 2005 FX
4. Heat cylinder head to 110 to 130°C (230 to 266 °F) by soaking in
heated oil.
5. Using the valve

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