2003 NISSAN TEANA service

EM-258
[VQ]
SERVICE DATA AND SPECIFICATIONS (SDS)

Available Valve Lifter
VQ23DE
Unit: mm (in)
VQ35DE
Unit: mm (in) Identification (stamped) mark
Thickness
Intake Exhaust
666U 6.66 (0.2622)
668U 6.68 (0.2630)
670U 6.70 (0.2638)
672U 6.72 (0.2646)
674U 6.74 (0.2654)
676U 6.76 (0.2661)
678U 6.78 (0.2669)
680U 6.80 (0.2677)
682U 6.82 (0.2685)
684U 6.84 (0.2693)
686U 6.86 (0.2701)
688U 6.88 (0.2709)
690U 6.90 (0.2717)
692U 6.92 (0.2724)
694U 6.94 (0.2732)
696U 6.96 (0.2740)
698U 6.98 (0.2748)
700U 7.00 (0.2756)
702U 7.02 (0.2764)
704U 7.04 (0.2772)
706U 7.06 (0.2780)
708U 7.08 (0.2787)
710U 7.10 (0.2795)
712U 7.12 (0.2803)
714U 7.14 (0.2811)
716U 7.16 (0.2819)
718U 7.18 (0.2827)
SEM758G

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-259
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

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 (0.3157)
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

EM-260
[VQ]
SERVICE DATA AND SPECIFICATIONS (SDS)

CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
Unit: mm (in) Items Standard Limit
Head surface distortion 0.03 (0.0012) 0.1 (0.004)
Normal cylinder head height “H” 126.3 - 126.5 (4.972 - 4.980) —
PBIC0924E
Engine VQ23DE VQ35DE
Valve head diameter “D”Intake 34.0 - 34.3 (1.339 - 1.350) 37.0 - 37.3 (1.457 - 1.469)
Exhaust 29.0 - 29.3 (1.142 - 1.154) 31.2 - 31.5 (1.228 - 1.240)
Valve length “L”Intake 99.28 (3.909) 96.46 (37.99)
Exhaust 96.81 (38.11) 93.99 (37.00)
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” wear limit 0.5 (0.020)
Valve stem end surface grinding limit 0.2 (0.008)
SEM188

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-261
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

Valve Guide
Unit: mm (in)
Items Standard Oversize (Service) [0.2 (0.008)]
Valve guideOuter 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 clearanceIntake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.003)
Exhaust 0.030 - 0.063 (0.0012 - 0.0025) 0.10 (0.004)
Projection length “L” 12.6 - 12.8 (0.496 - 0.504)
SEM950E

EM-262
[VQ]
SERVICE DATA AND SPECIFICATIONS (SDS)

Valve Seat
Unit: mm (in)
*
1 : Diameter made by intersection point of conic angles “α1” and “α2”
*2: Diameter made by intersection point of coind angles “α1” and “α2” ItemsStandard Oversize (Service) [0.5 (0.020)]
VQ23DE VQ35DE VQ23DE VQ35DE
Cylinder head seat recess diameter “D”Intake35.000 - 35.016
(1.3780 - 1.3786)38.000 - 38.016
(1.4961 - 1.4967)35.500 - 35.516
(1.3976 - 1.3983)38.500 - 38.516
(1.5157 - 1.5164)
Exhaust30.000 - 30.016
(1.1811 - 1.1817)32.200 - 32.216
(1.2677 - 1.2683)30.500 - 30.516
(1.2008 - 1.2014)32.700 - 32.716
(1.2874 - 1.2880)
Valve seat outer diameter “d”Intake35.080 - 35.096
(1.3811 - 1.3817)38.097 - 38.113
(1.4999 - 1.5005)35.580 - 35.596
(1.4008 - 1.014)38.597 - 38.613
(1.5196 - 1.5202)
Exhaust30.080 - 30.096
(1.1842 - 1.1849)32.280 - 32.296
(1.2709 - 1.2715)30.580 - 30.596
(1.2039 - 1.2046)32.780 - 32.796
(1.2905 - 1.2912)
Valve seat interference fitIntake0.064 - 0.096
(0.0025 - 0.0038)0.081 - 0.113
(0.0032 - 0.0044)0.064 - 0.096
(0.0025 - 0.0038)0.081 - 0.113
(0.0032 - 0.0044)
Exhaust 0.064 - 0.096 (0.0025 - 0.0038)
ItemsStandard
VQ23DE VQ35DE
Diameter″ d1 ″*
1Intake 32 (1.26) 35 (1.38)
Exhaust 26.5 (1.043) 28.7 (1.130)
Diameter″ d2 ″*
2Intake 33.3 – 33.8 (1.311 – 1.331) 36.3 – 36.8 (1.429 – 1.449)
Exhaust 28.1 – 28.6 (1.106 – 1.126) 30.3 – 30.8 (1.193 – 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 1.0 – 1.4 (0.039 – 0.055)
Exhaust 1.2 – 1.6 (0.047 – 0.063)
ItemsStandard Service
VQ23DE VQ35DE VQ23DE VQ35DE
Height “h”Intake6.2 - 6.3
(0.244 - 0.248)5.9 - 6.0
(0.232 - 0.236)5.4 - 5.5
(0.213 - 0.217)5.05 - 5.15
(0.1988 - 0.2028)
Exhaust5.9 - 6.0
(0.232 - 0.246)5.9 - 6.0
(0.232 - 0.236)4.95 - 5.05
(0.1949 - 0.1988)4.95 - 5.05
(0.1949 - 0.1988)
Depth “H”Intake 6.35 (0.2500) 6.0 (0.246) 6.35 (0.2500) 6.0 (0.246)
Exhaust 6.0 (0.246)
PBIC2745E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-263
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

*3 Machining data
Valve Spring
*: Exhaust side valve spring for VQ23DE has a parallel setting.Engine VQ23DE VQ35DE
Position Intake Exhaust* Intake Exhaust
Free height47.15 mm
(1.8563 in)52.28 mm
(2.0583 in)52.31 mm
(2.0594 in)47.07 mm
(1.8531 in)
Installation height37.00 mm
(1.4567 in)37.00 mm
(1.4567 in)37.00 mm
(1.4567 in)37.00 mm
(1.4567 in)
Installation load166 - 188 N
(16.9 - 19.2 kg,
37 - 42 lb)153 - 173 N
(15.6 - 17.6 kg,
34 - 39 lb)153 - 173 N
(15.6 - 17.6 kg,
34 - 39 lb)166 - 188 N
(16.9 - 19.2 kg,
37 - 42 lb)
Height during valve open27.20 mm
(1.0709 in)29.25 mm
(1.1516 in)29.25 mm
(1.1516 in)27.20 mm
(1.0709 in)
Load with valve open373 - 421 N
(38.0 - 42.9 kg,
84 - 95 lb)276 - 312 N
(28.1 - 31.8 kg,
62 - 70 lb)276 - 312 N
(28.1 - 31.8 kg,
62 - 70 lb)373 - 421 N
(38.0 - 42.9 kg,
84 - 95 lb)
Squareness 2.1 mm (0.083 in) 2.3 mm (0.091 in) 2.3 mm (0.091 in) 2.1 mm (0.083 in)

EM-264
[VQ]
SERVICE DATA AND SPECIFICATIONS (SDS)

CYLINDER BLOCK
Unit: mm (in)
EngineVQ23DE VQ35DE
Surface distortionStandard 0.03 (0.0012)
Limit 0.1 (0.004)
Main bearing housing inner diameter Standard 63.993 - 64.017 (2.5194 - 2.5203)
Cylinder bore Inner diameterStandardGrade No. 185.000 - 85.010
(3.3465 - 3.3468)95.500 - 95.510
(3.7598 - 3.7602)
Grade No. 285.010 - 85.020
(3.3468 - 3.3472)95.510 - 95.520
(3.7602 - 3.7606)
Grade No. 385.020 - 85.030
(3.3472 - 3.3476)95.520 - 95.530
(3.7606 - 3.7610)
Wear limit 0.2 (0.008)
Out-of-round (Difference between “X” and “Y”)
Limit0.015 (0.0006)
Taper (Difference between “A” and “C”) 0.01 (0.0004)
Main bearing housing inner diameter (Without bearing)Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 763.993 - 63.994 (2.5194 - 2.5194)
63.994 - 63.995 (2.5194 - 2.5195)
63.995 - 63.996 (2.5195 - 2.5195)
63.996 - 63.997 (2.5195 - 2.5196)
63.997 - 63.998 (2.5196 - 2.5196)
63.998 - 63.999 (2.5196 - 2.5196)
63.999 - 64.000 (2.5196 - 2.5197)
64.000 - 64.001 (2.5197 - 2.5197)
64.001 - 64.002 (2.5197 - 2.5198)
64.002 - 64.003 (2.5198 - 2.5198)
64.003 - 64.004 (2.5198 - 2.5198)
64.004 - 64.005 (2.5198 - 2.5199)
64.005 - 64.006 (2.5199 - 2.5199)
64.006 - 64.007 (2.5199 - 2.5200)
64.007 - 64.008 (2.5200 - 2.5200)
64.008 - 64.009 (2.5200 - 2.5200)
64.009 - 64.010 (2.5200 - 2.5201)
64.010 - 64.011 (2.5201 - 2.5201)
64.011 - 64.012 (2.5201 - 2.5202)
64.012 - 64.013 (2.5202 - 2.5202)
64.013 - 64.014 (2.5202 - 2.5202)
64.014 - 64.015 (2.5202 - 2.5203)
64.015 - 64.016 (2.5203 - 2.5203)
64.016 - 64.017 (2.5203 - 2.5203)
Difference in inner diameter between cylinders Standard Less than 0.03 (0.0012)
PBIC0923E

SERVICE DATA AND SPECIFICATIONS (SDS)
EM-265
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EM

PISTON, PISTON RING AND PISTON PIN
Available Piston
Unit: mm (in)
Piston Ring
Unit: mm (in) ItemsStandard Oversize (Service) [0.2 (0.008)]
VQ23DE VQ35DE VQ23DE VQ35DE
Piston skirt diameter “A”Grade No. 184.980 - 84.990
(3.3457 - 3.3461)95.480 - 95.490
(3.7590 - 3.7594)—
Grade No. 284.990 - 85.000
(3.3461 - 3.3465)95.490 - 95.500
(3.7594 - 3.7598)—
Grade No. 385.000 - 85.010
(3.3465 - 3.3468)95.500 - 95.510
(3.7598 - 3.7602)—
Service —85.180 - 85.210
(3.3535 - 3.3547)95.680 - 95.710
(3.7669 - 3.7681)
ItemsStandard Limit
VQ23DE VQ35DE VQ23DE VQ35DE
“a” dimension 45.4 (1.787) 41.0 (1.614) —
Piston pin hole diameterGrade No. 0 21.993 - 21.999 (0.8659 - 0.8661) —
Grade No. 1 21.999 - 22.005 (0.8661 - 0.8663) —
Piston to cylinder bore clearance 0.010 - 0.030 (0.0004 - 0.0012) 0.08 (0.0031)
SEM882E
ItemsStandard Limit
VQ23DE VQ35DE VQ23DE VQ35DE
Side clearanceTo p0.045 - 0.080
(0.0018 - 0.0031)0.045 - 0.080
(0.0018 - 0.0031)0.11 (0.0043)
2nd0.030 - 0.070
(0.0012 - 0.0028)0.030 - 0.070
(0.0012 - 0.0028)0.10 (0.004)
Oil ring0.045 - 0.125
(0.0018 - 0.0049)0.065 - 0.135
(0.0026 - 0.0053)—
End gapTo p0.20 - 0.30
(0.0079 - 0.0118)0.23 - 0.33
(0.0091 - 0.0130)0.54 (0.0213) 0.47 (0.0185)
2nd0.31 - 0.46
(0.0122 - 0.0181)0.33 - 0.48
(0.0130 - 0.0189)0.67 (0.0264) 0.59 (0.0232)
Oil (rail ring)0.20 - 0.60
(0.0079 - 0.0236)0.20 - 0.50
(0.0079 - 0.0197)0.95 (0.0374) 0.76 (0.0299)