2008 INFINITI FX35 intake

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-125
< SERVICE INFORMATION > [VQ35DE]
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6. Drain engine coolant by removing water drain plugs from cylin-
der block both sides at “B” and “C” and cylinder block front side
at “A” as shown in the figure.
7. Remove drive plate with power tool. Fix cr ankshaft with a ring gear stopper [SST: KV1011770 (J44716)],
and remove mounting bolts.
 Loosen mounting bolts in diagonal order.
CAUTION:
 Do not disassemble drive plate.
 Never place drive plate with signal plate facing down.
 When handling signal plate, take care not to damage or
scratch it.
 Handle signal plate in a ma nner that prevents it from
becoming magnetized.
8. Remove the following parts:  Intake manifold collector: Refer to EM-19, "
Component".
 Intake manifold: Refer to EM-24, "
Component".
 Oil pans (lower and upper): Refer to EM-30, "
Component (2WD Models)".
 Front and rear timing chain case: Refer to EM-64, "
Component".
 Cylinder head: Refer to EM-100, "
On-Vehicle Service".
9. Remove knock sensor. CAUTION:
Carefully handle sensor avoiding shocks.
PBIC2610E
SEM760G
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SERVICE DATA AND SPECIFICATIONS (SDS)
EM-149
< SERVICE INFORMATION > [VQ35DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001325750
GENERAL SPECIFICATIONS
DRIVE BELT
Cylinder arrangement
V- 6
Displacement cm
3 (cu in) 3,498 (213.45)
Bore and stroke mm (in) 95.5 x 81.4 (3.760 x 3.205)
Valve arrangement DOHC
Firing order 1-2-3-4-5-6
Number of piston rings Compression 2
Oil 1
Number of main bearings 4
Compression ratio 10.3
C o m p r e s s i o n p r e s s u r e k P a
(kg/cm
2, psi)/300 rpm Standard 1,275 (13.0, 185)
Minimum 981 (10.0, 142)
Differential limit between cylinders 98 (1.0, 14)
Cylinder number
Valve timing
(Intake valve timing control - “OFF”) Unit: degree
abcde f
240 238 −664 8 52
SEM713A
PBIC0187E
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EM-150
< SERVICE INFORMATION >[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
INTAKE MANIFOLD COLLECTOR, INTA
KE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
Deflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt 12 (0.47)
7 - 8
(0.28 - 0.31) 6 - 7
(0.24 - 0.28) 294 (30, 66) 730 - 818
(74.5 - 83.4,
164 - 184) 838 - 926
(85.5 - 94.5,
188 - 208)
A/C compressor
belt 12 (0.47)9 - 10
(0.35 - 0.39) 8 - 9
(0.31 - 0.35) 196 (20, 44) 348 - 436
(35.5 - 44.5, 78 - 98) 470 - 559
(47.9 - 57.0, 106 - 126)
Applied pushing
force 98 N (10 kg, 22 lb) —
PBIC5323E
Items Limit
Surface distortion Intake manifold collector (upper) 0.1 (0.004)
Intake manifold collector (lower) 0.1 (0.004)
Intake manifold 0.1 (0.004)
Exhaust manifold 0.3 (0.012)
Make NGK
Standard type PLFR5A-11
Hot type PLFR4A-11
Cold type PLFR6A-11
Gap (Nominal) 1.1 mm (0.043 in)
Items Standard Limit
Camshaft journal oil clearance No. 1 0.045 - 0.086 (0.0018 - 0.0034)
0.15 (0.0059)
No. 2, 3, 4 0.035 - 0.076 (0.0014 - 0.0030)
Camshaft bracket inner diameter No. 1 26.000 - 26.021 (1.0236 - 1.0244) —
No. 2, 3, 4 23.500 - 23.521 (0.9252 - 0.9260) —
Camshaft journal diameter No. 1 25.935 - 25.955 (1.0211 - 1.0218) —
No. 2, 3, 4 23.445 - 23.465 (0.9230 - 0.9238) —
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074) 0.24 (0.0094)
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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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SERVICE DATA AND SPECIFICATIONS (SDS)
EM-153
< SERVICE INFORMATION > [VQ35DE]
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Unit: mm (in)
Valve Guide
Unit: mm (in)
Valve Seat
Valve head diameter “D”
Intake 37.0 - 37.3 (1.457 - 1.469)
Exhaust 31.2 - 31.5 (1.228 - 1.240)
Valve length “L” Intake 96.46 (3.7976)
Exhaust 93.99 (3.7004)
Valve stem diameter “d” Intake 5.965 - 5.980 (0.2348 - 0.2354)
Exhaust 5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “ α” Intake
45°15 ′ - 45 °45 ′
Exhaust
Valve margin “T” Intake 1.1 (0.043)
Exhaust 1.3 (0.051)
Valve margin “T” limit 0.5 (0.020)
Valve stem end surface grinding limit 0.2 (0.008)
SEM188
Items Standard Oversize (Service) [0.2 (0.008)]
Va l v e g u i d e Outer diameter 10.023 - 10.034 (0.3946 - 0.3950) 10.223 - 10.234 (0.4025 - 0.4029)
Inner diameter (Finished size) 6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head valve guide hole diameter 9.975 - 9.996 (0.3927 - 0.3935) 10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide 0.027 - 0.059 (0.0011 - 0.0023) Items Standard Limit
Valve guide clearance Intake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.0031)
Exhaust 0.030 - 0.063 (0.0012 - 0.0025) 0.09 (0.0039)
Projection length “L” 12.6 - 12.8 (0.496 - 0.504)
SEM950E
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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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EM-166
< SERVICE INFORMATION >[VK45DE]
PREPARATION
(—)
Valve guide driftRemoving and installing valve guide
Intake and Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
(—)
Valve guide reamer (1): Reaming valve guide inner hole
(2): Reaming hole for oversize valve guide
Intake and Exhaust:
d
1: 6.0 mm (0.236 in) dia.
d
2: 10.2 mm (0.402 in) dia.
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner Reconditioning the exhaust system threads
before installing a new heated oxygen sensor
(Use with anti-seize lubricant shown below.)
a: J-43897-18 (18 mm dia.) for zirconia
heated oxygen sensor
b: J-43897-12 (12 mm dia.) for titania heat-
ed oxygen sensor
(—)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907) Lubricating oxygen sensor thread cleaning
tool when reconditioning exhaust system
threads
(Kent-Moore No.)
Tool name
Description
S-NT015
S-NT016
AEM488
AEM489
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