Infiniti FX35, FX50 (S51). Manual - part 996

 

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Infiniti FX35, FX50 (S51). Manual - part 996

 

 

EM-284

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[VK50VE]

SERVICE DATA AND SPECIFICATIONS (SDS)

VALVE CLEARANCE

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

AVAILABLE VALVE LIFTER

Unit: mm (in)

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

788P

7.88 (0.3102)

790P

7.90 (0.3110)

792P

7.92 (0.3118)

794P

7.94 (0.3126)

796P

7.96 (0.3134)

798P

7.98 (0.3142)

800P

8.00 (0.3150)

802P

8.02 (0.3157)

804P

8.04 (0.3165)

806P

8.06 (0.3173)

808P

8.08 (0.3181)

810P

8.10 (0.3189)

812P

8.12 (0.3197)

814P

8.14 (0.3205)

816P

8.16 (0.3213)

818P

8.18 (0.3220)

820P

8.20 (0.3228)

822P

8.22 (0.3236)

824P

8.24 (0.3244)

826P

8.26 (0.3252)

828P

8.28 (0.3260)

830P

8.30 (0.3268)

832P

8.32 (0.3276)

834P

8.34 (0.3283)

836P

8.36 (0.3291)

838P

8.38 (0.3299)

840P

8.40 (0.3307)

SEM758G

SERVICE DATA AND SPECIFICATIONS (SDS)

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Cylinder Head

INFOID:0000000005245271

CYLINDER HEAD

Unit: mm (in)

VALVE DIMENSIONS

Unit: mm (in)

VALVE GUIDE

Items

Standard

Limit

Head surface distortion

Less than 0.03 (0.0012)

0.1 (0.004)

Normal cylinder head height “H”

126.4 (4.98)

—

PBIC0924E

Valve head diameter “D”

Intake

36.6 - 36.9 (1.441 - 1.453)

Exhaust

30.2 - 30.5 (1.189 - 1.201)

Valve length “L”

Intake

100.11 (3.94)

Exhaust

94.67 (3.7272)

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-286

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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SERVICE DATA AND SPECIFICATIONS (SDS)

Unit: mm (in)

*: Parts settings are for exhaust side only

VALVE SEAT

Unit: mm (in)

Items

Standard

Oversize (Service) [0.2 (0.008)]*

Valve guide

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 (0.003)

Exhaust

0.030 - 0.063 (0.0012 - 0.0025)

0.09 (0.004)

Projection length “L”

Intake

12.6 - 12.8 (0.496 - 0.504)

Exhaust

11.9 - 12.1 (0.469 - 0.476)

SEM950E

Items

Standard

Oversize (Service) [0.5 (0.02)] *

4

Cylinder head seat recess di-
ameter “D”

Intake

38.000 - 38.016 (1.4961 - 1.4967)

—

Exhaust

31.600 - 31.616 (1.2441 - 1.2447)

32.100 - 32.116 (1.2638 - 1.2644)*

4

Valve seat outer diameter “d”

Intake

38.097 - 38.113 (1.4999 - 1.5005)

—

Exhaust

31.680 - 31.696 (1.2472 - 1.2479)

32.180 - 32.196 (1.2669 - 1.2676)*

4

Valve seat interference fit

Intake

0.081 - 0.113 (0.0032 - 0.0044)

Exhaust

0.064 - 0.096 (0.0025 - 0.0038)

Diameter “d1”*

1

Intake

34.6 (1.362)

Exhaust

27.7 (1.091)

Diameter “d2”*

2

Intake

35.9 - 36.4 (1.413 - 1.433)

Exhaust

29.3 - 29.8 (1.154 - 1.173)

Angle “

α

1”

59 - 61

°

PBIC2745E

SERVICE DATA AND SPECIFICATIONS (SDS)

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*

1

: Diameter made by intersection point of conic angles “

α

1” and “

α

2”

*

2

: Diameter made by intersection point of conic angles “

α

2” and “

α

3”

*

3

: Machining data

*

4

: Parts settings are for exhaust side only

VALVE SPRING

Cylinder Block

INFOID:0000000005245272

CYLINDER BLOCK

Unit: mm (in)

Angle “

α

2”

88

°

45

′

 - 90

°

15

′

Angle “

α

3”

119 - 121

°

Contacting width “W”*

3

Intake

1.0 - 1.4 (0.039 - 0.055)

Exhaust

1.2 - 1.6 (0.047 - 0.063)

Height “h”

Intake

5.9 - 6.0 (0.232 - 0.236)

—

Exhaust

5.9 - 6.0 (0.232 - 0.236)

4.9 - 5.0 (0.1949 - 0.1988)*

4

Depth “H”

6.0 (0.236)

Item

Standard

Intake

Exhaust

Free height

48.69 mm (1.9169 in)

47.35 mm (1.8642 in)

Pressure 

Installation

162 - 192 N (16.5 - 19.6 kg, 36 - 43 lb)

at 42.40 mm (1.6693 in) 

163 - 191 N (16.6 - 19.5 kg, 37 - 43 lb)

at 35.45 mm (1.3957 in)

Valve open

609 - 695 N (62.1 - 70.9 kg, 137 - 156 lb)

 at 28.83 mm (1.1350 in)

370 - 426 N (37.7 - 43.5 kg, 83 - 96 lb) 

at 25.65 mm (1.0098 in)

Identification color

Yellow

Pink

Item

Limit

Intake

Exhaust

Out-of-square

2.1 mm (0.083 in)

2.0 mm (0.079 in)

Surface flatness

Limit

0.1 (0.004)

Main bearing housing inner diameter

Standard

68.944 - 68.968 (2.7143 - 2.7153)

Cylinder bore

Inner diameter

Standard

Grade No. 1

95.500 - 95.510 (3.7598 - 3.7602)

Grade No. 2

95.510 - 95.520 (3.7602 - 3.7606)

Grade No. 3

95.520 - 95.530 (3.7606 - 3.7610)

Wear limit

0.2 (0.008)

Out-of-round 

Limit

0.015 (0.0006)

Taper 

0.010 (0.0004)

 

 

 

 

 

 

 

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