Content .. 592 593 594 595 ..

Nissan Frontier D40. Manual - part 594

EM-108

< SERVICE DATA AND SPECIFICATIONS (SDS)

[QR25DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Valve Clearance

Unit: mm (in)

*: Approximately 80

C (176

Available Valve Lifter

Valve seat angle “

”

Intake

′

- 45

′

Exhaust

Valve margin “T”

Intake

1.1 (0.043)

Exhaust

1.3 (0.051)

Items

Cold

Hot* (reference data)

Intake

0.24 - 0.32 (0.009 - 0.013)

0.304 - 0.416 (0.012 - 0.016)

Exhaust

0.26 - 0.34 (0.010 - 0.013)

0.308 - 0.432 (0.012 - 0.017)

Thickness

mm (in)

Identification mark*

6.96 (0.2740)

696

6.98 (0.2748)

698

7.00 (0.2756)

700

7.02 (0.2764)

702

7.04 (0.2772)

704

7.06 (0.2780)

706

7.08 (0.2787)

708

7.10 (0.2795)

710

7.12 (0.2803)

712

7.14 (0.2811)

714

7.16 (0.2819)

716

7.18 (0.2827)

718

7.20 (0.2835)

720

7.22 (0.2843)

722

7.24 (0.2850)

724

7.26 (0.2858)

726

7.28 (0.2866)

728

7.30 (0.2874)

730

7.32 (0.2882)

732

7.34 (0.2890)

734

7.36 (0.2898)

736

7.38 (0.2906)

738

7.40 (0.2913)

740

KBIA0119E

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-109

< SERVICE DATA AND SPECIFICATIONS (SDS)

[QR25DE]

*: Always check with the Parts Department for the latest parts information

Valve Spring

Valve Lifter

Unit: mm (in)

Valve Guide

Unit: mm (in)

Valve Seat

7.42 (0.2921)

742

7.44 (0.2929)

744

7.46 (0.2937)

746

Thickness

mm (in)

Identification mark*

Items

Intake

Exhaust

Free height

43.72 - 43.92 mm (1.7213 - 1.7291 in)

45.29 - 45.49 mm (1.7831 - 1.7909 in)

Installation height

35.30 mm (1.390 in)

Installation load

151 - 175 N (15.4 - 17.8 kg, 34 - 39 lb)

Height during valve open

25.3 mm (0.996 in)

26.76 mm (1.0535 in)

Load with valve open

351 - 394 N (35.8 - 40.2 kg, 79 - 89 lb)

318 - 362 N (32.4 - 36.9 kg, 71 - 81 lb)

Identification color

Pink

Green

Squareness limit

1.8 mm (0.071 in)

1.9 mm (0.075 in)

Items

Standard

Valve lifter outer diameter

33.965 - 33.980 (1.3372 - 1.3378)

Valve lifter hole diameter

34.000 - 34.021 (1.3386 - 1.3394)

Valve lifter clearance

0.020 - 0.056 (0.0008 - 0.0022)

Items

Standard part

Service part

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

10.1 - 10.3 (0.398 - 0.406)

Exhaust

10.0 - 10.4 (0.394 - 0.409)

PBIC0184E

EM-110

< SERVICE DATA AND SPECIFICATIONS (SDS)

[QR25DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Unit: mm (in)

: Diameter made by intersection point of conic angles

1 and

: Diameter made by intersection point of conic angles

2 and

: Machining data

Valve Seal

Unit: mm (in)

Spark Plug Tube

Unit: mm (in)

CAMSHAFT AND CAMSHAFT BEARING

Items

Standard

Oversize [0.5 (0.02)] (Service)

Cylinder head seat recess diameter “D”

Intake

36.500 - 36.516 (1.4370 - 1.4376)

37.000 - 37.016 (1.4567 - 1.4573)

Exhaust

31.500 - 31.516 (1.2402 - 1.2408)

32.000 - 32.016(1.2598 - 1.2605)

Valve seat outer diameter “d”

Intake

36.597 - 36.613 (1.4408 - 1.4415)

37.097 - 37.113 (1.4605 - 1.4611)

Exhaust

31.600 - 31.616 (1.2441 - 1.2447)

32.100 - 32.116 (1.2638 - 1.2644)

Valve seat interference fit

Intake

0.081 - 0.113 (0.0032 - 0.0044)

Exhaust

0.084 - 0.116 (0.0033 - 0.0046)

Diameter “d1”*

Intake

33.5 (1.319)

Exhaust

28.0 (1.102)

Diameter “d2”*

Intake

35.1 - 35.3 (1.382 - 1.390)

Exhaust

29.9 - 30.1 (1.177 - 1.185)

Angle “

1”

Intake

Exhaust

Angle “

2”

Intake

′

- 90

′

Exhaust

′

- 90

′

Angle “

3”

Intake

120

Exhaust

120

Contacting width “W”*

Intake

1.05 - 1.35 (0.0413 - 0.0531)

Exhaust

1.25 - 1.55 (0.0492 - 0.0610)

Height “h”

Intake

5.9 - 6.0 (0.232 - 0.236)

5.0 - 5.1 (0.197 - 0.201)

Exhaust

5.9 - 6.0 (0.232 - 0.236)

4.91 - 5.01 (0.1933 - 0.1972)

Depth “H”

6.0 (0.236)

PBIC2745E

Items

Standard

Valve seal installed height

11.8 - 12.4 (0.465 - 0.488)

Items

Standard

Spark plug tube installed height

41.2 - 42.2 (1.622 - 1.661)

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-111

< SERVICE DATA AND SPECIFICATIONS (SDS)

[QR25DE]

Unit: mm (in)

: Cam wear limit

: Total indicator reading

CYLINDER BLOCK

Unit: mm (in)

Items

Standard

Limit

Camshaft journal oil clearance

0.045 - 0.086 (0.0018 - 0.0034)

—

Camshaft bracket inner diameter

No. 1

28.000 - 28.021 (1.1024 - 1.1032)

—

No. 2, 3, 4, 5

23.500 - 23.521 (0.9252 - 0.9260)

—

Camshaft journal outer diameter

No. 1

27.935 - 27.955 (1.0998 - 1.1006)

—

No. 2, 3, 4, 5

23.435 - 23.455 (0.9226 - 0.9234)

—

Camshaft journal length

No. 1

25.800 - 25.848 (1.0157 - 1.0176)

—

Camshaft end play

0.115 - 0.188 (0.0045 - 0.0074)

—

Camshaft cam height “A”

Intake

45.015 - 45.205 (1.7722 - 1.7797)

0.2 (0.008)*

Exhaust

43.975 - 44.165 (1.7313 - 1.7388)

Camshaft runout [TIR*

]

Less than 0.02 (0.0008)

—

Camshaft sprocket runout [TIR*

]

—

0.15 (0.0059)

SEM671

Surface distortion

Limit

0.1 (0.004)

Cylinder bore

Inner diameter

Standard

Grade No. 2

89.010 - 89.020 (3.5043 - 3.5047)

Grade No. 3

89.020 - 89.030 (3.5047 - 3.5051)

Wear limit

0.2 (0.008)

Out-of-round (Difference between “X” and “Y”)

Limit

0.015 (0.0006)

Taper (Difference between “A” and “C”)

0.01 (0.0004)

PBIC0281E

Content .. 592 593 594 595 ..