Infiniti G37 Coupe. Manual - part 641

 

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Infiniti G37 Coupe. Manual - part 641

 

 

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-139

< SERVICE DATA AND SPECIFICATIONS (SDS) 

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Intake Manifold 

INFOID:0000000001547542

INTAKE MANIFOLD

Unit: mm (in)

Exhaust Manifold

INFOID:0000000001547543

EXHAUST MANIFOLD

Unit: mm (in)

Camshaft

INFOID:0000000001547544

CAMSHAFT (EXH)

Unit: mm (in)

*

1

: Cam wear limit

*

2

: Total indicator reading

CAMSHAFT (INT)

Unit: mm (in)

*

1

: Total indicator reading

Items

                                Limit

Surface distortion

Intake manifold

0.1 (0.004)

Items

                                Limit

Surface distortion

Exhaust manifold

0.7 (0.028)

Items

Standard

Limit

Camshaft (EXH) journal oil clearance

No. 1

0.045 - 0.086 (0.0018 - 0.0034)

0.150 (0.0059)

No. 2, 3, 4

0.035 - 0.076 (0.0014 - 0.0030)

VVEL ladder assembly bracket inner diameter (EXH)

No. 1

26.000 - 26.021 (1.0236 - 1.0244)

No. 2, 3, 4

23.500 - 23.521 (0.9252 - 0.9260)

Camshaft (EXH) 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 (EXH) end play

0.115 - 0.188 (0.0045 - 0.0074)

0.24 (0.0094)

Camshaft (EXH) cam height “A” 

Bank 1

45.015 - 45.205 (1.7722 - 1.7797)

0.2 (0.008)*

1

Bank 2

46.735 - 46.925 (1.8400 - 1.8474)

Camshaft (EXH) runout [TIR*

2

Less than 0.02 mm (0.001)

0.05 (0.002)

Camshaft sprocket (EXH) runout [TIR*

2

]

0.15 (0.0059)

SEM671

Items

Standard

Limit

Drive shaft end play

0.115 - 0.188 (0.0045 - 0.0074)

0.24 (0.0094)

Camshaft sprocket (INT) runout [TIR*

1

]

0.15 (0.0059)

EM-140

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

VALVE LIFTER

Unit: mm (in)

VALVE CLEARANCE

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

AVAILABLE VALVE LIFTER

Unit: mm (in)

Items

Standard

Valve lifter outer diameter

33.980 - 33.990 (1.3378 - 1.3382)

Valve lifter hole diameter

34.000 - 34.016 (1.3386 - 1.3392)

Valve lifter clearance

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

788T

7.88 (0.3102)

790T

7.90 (0.3110)

792T

7.92 (0.3118)

794T

7.94 (0.3126)

796T

7.96 (0.3134)

798T

7.98 (0.3142)

800T

8.00 (0.3150)

802T

8.02 (0.3157)

804T

8.04 (0.3165)

806T

8.06 (0.3173)

808T

8.08 (0.3181)

810T

8.10 (0.3189)

812T

8.12 (0.3197)

814T

8.14 (0.3205)

816T

8.16 (0.3213)

818T

8.18 (0.3220)

820T

8.20 (0.3228)

822T

8.22 (0.3236)

824T

8.24 (0.3244)

826T

8.26 (0.3252)

828T

8.28 (0.3260)

830T

8.30 (0.3268)

832T

8.32 (0.3276)

834T

8.34 (0.3283)

836T

8.36 (0.3291)

838T

8.38 (0.3299)

SERVICE DATA AND SPECIFICATIONS (SDS)

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Cylinder Head

INFOID:0000000001547545

CYLINDER HEAD

Unit: mm (in)

VALVE DIMENSIONS

Unit: mm (in)

840T

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”

126.4 (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

5.962 - 5.970 (0.2347 - 0.2350)

SEM188

EM-142

< SERVICE DATA AND SPECIFICATIONS (SDS) 

SERVICE DATA AND SPECIFICATIONS (SDS)

VALVE GUIDE

Unit: mm (in)

*: Parts settings are for exhaust side only

VALVE SEAT

Unit: mm (in)

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)

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 - 0.056 (0.0012 - 0.0022)

0.09 (0.004)

Projection length “L”

12.6 - 12.8 (0.496 - 0.504)

SEM950E

Items

Standard

Oversize (Service) [0.5 (0.02)] *

4

Cylinder head seat recess diameter “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

PBIC2745E

 

 

 

 

 

 

 

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