2006 INFINITI FX35 exh

EM-122
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2006 December 2006 FX35/FX45

Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.

For a location with a positioning pin, insert it securely into hole of mating part.

For a part with a specified installation orientation, refer to component figure in EM-118, "Components
(AWD Models)" .

When installing engine mounting bracket (RH and LH) on cylin-
der block, tighten two upper bolts (shown as “A” in the figure)
first. Then tighten two lower bolts (shown as “B” in the figure).

Install engine mounting bracket (RH) (lower) as follows:
–Temporarily tighten mounting bolts (shown as “C”, “D” and “E” in
the figure).
–Tighten mounting bolts to the specified torque with following
mounting surfaces touched.
 Engine mounting bracket (RH) to engine mounting bracket (RH) (lower) (shown as “C” and “D” in figure).
 Front final drive to engine mounting bracket (RH) (lower) (shown as “E” in figure).

Make sure all engine mounting insulators are seated properly,
then tighten mounting nuts.
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.
PBIC3042E
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-124
[VQ35DE]
CYLINDER BLOCK
Revision: 2006 December 2006 FX35/FX45

Refer to GI-11, "Components" for symbol marks in the figure.
Disassembly and AssemblyNBS003H6
DISASSEMBLY
1. Remove the engine assembly from the vehicle, and separate transmission assembly, transfer assembly
(AWD models), front final drive assembly (AWD models) and front suspension member from the engine.
Refer to EM-113, "
ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-26, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Cover 5. Gasket 6. Cylinder block
7. Knock sensor 8. Oil jet 9. Thrust bearing
10. Pilot converter 11. Main bearing 12. Crankshaft
13. Crankshaft key 14. Main bearing cap 15. Main bearing cap bolt
16. Main bearing beam 17. Baffle plate (2WD models) 18. Connecting rod bolt
19. Connecting rod bearing cap 20. Connecting rod bearing 21. Connecting rod
22. Snap ring 23. Piston pin 24. Piston
25. Oil ring 26. Second ring 27. Top ring
A. Refer to EM-129
B. Crankshaft side C. Chamfered
1. Cylinder block 2. Gasket 3. Water connector
4. Gasket 5. Cylinder block heater 6. Connector protector cap
PBIC2614E

EM-152
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 December 2006 FX35/FX45
DRIVE BELT
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
INTAKE MANIFOLD COLLECTOR, INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Deflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb) Used belt New belt Used belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt 7 (0.28)
4 - 5
(0.16 - 0.20) 3.5 - 4.5
(0.138 - 0.177) 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) —
KBIA1731J
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)

SERVICE DATA AND SPECIFICATIONS (SDS) EM-153
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*
1 : Cam wear limit
*2 : Total indicator reading
Valve Lifter
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80 °C (176 °F)
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)
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 33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter hole diameter 34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance 0.013 - 0.039 (0.0005 - 0.0015)
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)

EM-154
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 December 2006 FX35/FX45
Available Valve Lifter
Unit: mm (in)
Identification (stamped) mark Thickness
Intake Exhaust
788U 788R 7.88 (0.3102)
790U 790R 7.90 (0.3110)
792U 792R 7.92 (0.3118)
794U 794R 7.94 (0.3126)
796U 796R 7.96 (0.3134)
798U 798R 7.98 (0.3142)
800U 800R 8.00 (0.3150)
802U 802R 8.02 (03.157)
804U 804R 8.04 (0.3165)
806U 806R 8.06 (0.3173)
808U 808R 8.08 (0.3181)
810U 810R 8.10 (0.3189)
812U 812R 8.12 (0.3197)
814U 814R 8.14 (0.3205)
816U 816R 8.16 (0.3213) 818U 818R 8.18 (0.3220)
820U 820R 8.20 (0.3228)
822U 822R 8.22 (0.3236)
824U 824R 8.24 (0.3244)
826U 826R 8.26 (0.3252)
828U 828R 8.28 (0.3260)
830U 830R 8.30 (0.3268)
832U 832R 8.32 (0.3276)
834U 834R 8.34 (0.3283)
836U 836R 8.36 (0.3291)
838U 838R 8.38 (0.3299)
840U 840R 8.40 (0.3307)
SEM758G

SERVICE DATA AND SPECIFICATIONS (SDS) EM-155
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
Unit: mm (in)
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
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

EM-156
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 December 2006 FX35/FX45
Valve Guide
Unit: mm (in)
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

SERVICE DATA AND SPECIFICATIONS (SDS) EM-157
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EM
Revision: 2006 December 2006 FX35/FX45
Valve Seat
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
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)