2008 INFINITI FX35 height

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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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
< SERVICE INFORMATION > [VQ35DE]
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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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CYLINDER HEADEM-111
< SERVICE INFORMATION > [VQ35DE]
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 Check the valve spring pressure at specified spring height.
 If the installation load or load with valve open is out of the standard, replace valve spring. Standard:
Intake and exhaust Free height: 47.07 mm (1.8531 in)
Installation height
: 37.0 mm (1.457 in)
Installation load : 166 - 188 N (16.9 - 19.2 kg, 37 - 42 lb)
Height during valve open : 27.2 mm (1.071 in)
Load with valve open : 373 - 421 N (38.0 - 42.9 kg, 84 - 95 lb)
SEM113
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CYLINDER BLOCKEM-147
< SERVICE INFORMATION > [VQ35DE]
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 Remove main bearing caps and bearings, and using the scale on
the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
MAIN BEARING CRUSH HEIGHT
 When main bearing cap is removed after being tightened to thespecified torque with main bearings installed, the tip end of bearing
must protrude. Refer to EM-123, "
Disassembly and Assembly" for
the tightening procedure.
 If the standard is not met, replace main bearings.
CONNECTING ROD BEARING CRUSH HEIGHT
 When connecting rod bearing cap is removed after being tightened to the specified torque with connecting rod bearings installed, the
tip end of bearing must protrude. Refer to EM-123, "
Disassembly
and Assembly" for the tightening procedure.
 If the standard is not met, replace connecting rod bearings.
MAIN BEARING CAP BOLT OUTER DIAMETER
 Measure the outer diameters (“d1”, “d2”) at two positions as shown
in the figure.
 If reduction appears in “A” range, regard it as “d
2”.
 If it exceeds the limit (large difference in dimensions), replace main bearing cap bolt with new one.
CONNECTING ROD BOLT OUTER DIAMETER
PBIC1149E
Standard : There must be crush height.
SEM502G
Standard : There must be crush height.
PBIC1646E
Limit (“d1” – “d2”) : 0.11 mm (0.0043 in)
PBIC0911E
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SERVICE DATA AND SPECIFICATIONS (SDS)
EM-151
< SERVICE INFORMATION > [VQ35DE]
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*1: Cam wear limit
*
2: Total indicator reading
Valve Lifter
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80 °C (176 °F)
Available Valve Lifter
Unit: mm (in)
Camshaft cam height “A” Intake and exhaust 44.865 - 45.055 (1.7663 - 1.7738)
0.2 (0.008)*1
Camshaft runout (TIR*2)Less than 0.02 mm (0.0008) 0.05 (0.0020)
Camshaft sprocket runout (TIR*
2) — 0.15 (0.0059)
SEM671
Items Standard
Valve lifter outer diameter Identification (stamped)
mark “R” or “U” 33.977 - 33.987 (1.3377 - 1.3381)
Identification (stamped) mark “V” 33.980 - 33.990 (1.3378 - 1.3382)
Valve lifter hole diameter 34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance Identification (stamped) mark “R” or “U” 0.013 - 0.039 (0.0005 - 0.0015)
Identification (stamped) mark “V” 0.010 - 0.036 (0.0004 - 0.0014)
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)
Identification (stamped) mark Thickness
788U 788R 788V 7.88 (0.3102)
790U 790R 790V 7.90 (0.3110)
792U 792R 792V 7.92 (0.3118)
794U 794R 794V 7.94 (0.3126)
796U 796R 796V 7.96 (0.3134)
798U 798R 798V 7.98 (0.3142)
800U 800R 800V 8.00 (0.3150)
802U 802R 802V 8.02 (03.157)
804U 804R 804V 8.04 (0.3165)
806U 806R 806V 8.06 (0.3173)
808U 808R 808V 8.08 (0.3181)
810U 810R 810V 8.10 (0.3189)
812U 812R 812V 8.12 (0.3197)
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EM-152
< SERVICE INFORMATION >[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
814U 814R 814V 8.14 (0.3205)
816U 816R 816V 8.16 (0.3213) 818U 818R 818V 8.18 (0.3220)
820U 820R 820V 8.20 (0.3228)
822U 822R 822V 8.22 (0.3236)
824U 824R 824V 8.24 (0.3244)
826U 826R 826V 8.26 (0.3252)
828U 828R 828V 8.28 (0.3260)
830U 830R 830V 8.30 (0.3268)
832U 832R 832V 8.32 (0.3276)
834U 834R 834V 8.34 (0.3283)
836U 836R 836V 8.36 (0.3291)
838U 838R 838V 8.38 (0.3299)
840U 840R 840V 8.40 (0.3307) Identification (stamped) mark Thickness
SEM758G
Items Standard Limit
Head surface distortion Less than 0.03 (0.0012) 0.1 (0.004)
Normal cylinder head height “H” 126.3 - 126.5 (4.97 - 4.98) —
PBIC0924E
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EM-154
< SERVICE INFORMATION >[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Unit: mm (in)
*1: Diameter made by intersection point of conic angles “
α1” and “ α2”
*
2: Diameter made by intersection point of conic angles “ α2” and “ α3”
*
3: Machining data
Valve Spring
CYLINDER BLOCK
Items Standard Oversize (Service) [0.5 (0.02)]
Cylinder head seat recess diameter “D” Intake 38.000 - 38.016 (1.4961 - 1.4967) 38.500 - 38.516 (1.5157 - 1.5164) Exhaust 32.200 - 32.216 (1.2677 - 1.2683) 32.700 - 32.716 (1.2874 - 1.2880)
Valve seat outer diameter “d” Intake 38.097 - 38.113 (1.4999 - 1.5005) 38.597 - 38.613 (1.5196 - 1.5202)
Exhaust 32.280 - 32.296 (1.2709 - 1.2715) 32.780 - 32.796 (1.2905 - 1.2912)
Valve seat interference fit Intake 0.081 - 0.113 (0.0032 - 0.0044)
Exhaust 0.064 - 0.096 (0.0025 - 0.0038)
Diameter “d1”*
1Intake 35 (1.38)
Exhaust 28.7 (1.130)
Diameter “d2”*
2Intake 36.6 - 36.8 (1.441 - 1.449)
Exhaust 30.6 - 30.8 (1.205 - 1.213)
Angle “ α1” Intake 60
°
Exhaust 60 °
Angle “ α2” Intake 88
°45 ′ - 90 °15 ′
Exhaust 88 °45 ′ - 90 °15 ′
Angle “ α3” Intake 120
°
Exhaust 120 °
Contacting width “W”*
3Intake 1.09 - 1.31 (0.0429 - 0.0516)
Exhaust 1.29 - 1.51 (0.0508 - 0.0594)
Height “h” Intake 5.9 - 6.0 (0.232 - 0.236) 5.05 - 5.15 (0.1988 - 0.2028)
Exhaust 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Depth “H” 6.0 (0.236)
PBIC2745E
Free height mm (in) 47.07 (1.8531)
Pressure N (kg, lb) at height mm (in) Installation 166 - 188 (16.9 - 19.2, 37 - 42) at 37.0 (1.457)
Valve open 373 - 421 (38.0 - 42.9, 84 - 95) at 27.2 (1.071)
Out-of-square mm (in) Limit 2.1 (0.083)
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