Content .. 384 385 386 387 ..

Nissan Pathfinder (2008 year). Manual - part 386

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-251

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

Valve Dimensions

Unit: mm (in)

Valve Guide

Unit: mm (in)

Nominal cylinder head height “H”

126.3 (4.97)

Items

Standard

Limit

KBIA2554E

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

96.21- 96.71 (3.7878 - 3.8075)

Exhaust

93.74 - 94.24 (3.6905 - 3.7102)

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 “

”

Intake

′

- 45

′

Exhaust

Valve margin “T”

Intake

1.1 (0.043)

Exhaust

1.3 (0.051)

SEM188

Items

Standard

Oversize [0.2 (0.008)] (service)

KBIA2555E

EM-252

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Valve Seat

Unit: mm (in)

Valve Spring

CYLINDER BLOCK

Unit: mm (in)

Valve guide

Outside diameter

10.023 - 10.034 (0.3946 - 0.3950)

10.223 - 10.234 (0.4025 - 0.4029)

Inside 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

Stem to 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 (0.0035)

Projection length “L”

Intake

12.6 - 12.8 (0.496 - 0.504)

Exhaust

12.5 - 12.9 (0.492 - 0.508)

Items

Standard

Oversize [0.5 (0.020)] (Service)

Cylinder head seat recess diameter

″

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 interference fit

Intake

0.081 - 0.113 (0.0032 - 0.0044)

Exhaust

0.064 - 0.096 (0.0025 - 0.0038)

Valve seat diameter

″

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)

KBIA2541E

Free height

mm (in)

50.58 (1.9913)

Pressure

N (kg, lb) at height mm (in)

Installation

165.8 - 187.0 (16.9 - 19.1, 37 - 42) at 37.0 (1.457)

Valve open

314.8 - 355.0 (32.1 - 36.2, 71 - 80) at 28.2 (1.110)

Out-of-square

mm (in)

Less than 2.2 (0.087)

PBIC0123E

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-253

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

PISTON, PISTON RING AND PISTON PIN

Available Piston

Unit: mm (in)

Surface flatness

Standard

0.03 (0.0012)

LImit

0.1 (0.004)

Main bearing housing inside diameter

Standard

68.944 - 68.968 (2.7143 - 2.7153)

Cylinder bore diameter

Standard

Grade No. 1

98.000 - 98.010 (3.8583 - 3.8587)

Grade No. 2

98.010 - 98.020 (3.8587 - 3.8590)

Grade No. 3

98.020 - 98.030 (3.8590 - 3.8594)

Wear limit

0.20 (0.0079)

Out-of-round (Difference between

″

and

″

)

Limit

0.015 (0.0006)

Taper (Difference between

″

and

″

)

0.010 (0.0004)

Main journal inside diameter grade (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. 7

68.944 - 68.945 (2.7143 - 2.7144)
68.945 - 68.946 (2.7144 - 2.7144)
68.946 - 68.947 (2.7144 - 2.7144)
68.947 - 68.948 (2.7144 - 2.7145)
68.948 - 68.949 (2.7145 - 2.7145)
68.949 - 68.950 (2.7145 - 2.7146)
68.950 - 68.951 (2.7146 - 2.7146)
68.951 - 68.952 (2.7146 - 2.7146)
68.952 - 68.953 (2.7146 - 2.7147)
68.953 - 68.954 (2.7147 - 2.7147)
68.954 - 68.955 (2.7147 - 2.7148)
68.955 - 68.956 (2.7148 - 2.7148)
68.956 - 68.957 (2.7148 - 2.7148)
68.957 - 68.958 (2.7148 - 2.7149)
68.958 - 68.959 (2.7149 - 2.7149)
68.959 - 68.960 (2.7149 - 2.7150)
68.960 - 68.961 (2.7150 - 2.7150)
68.961 - 68.962 (2.7150 - 2.7150)
68.962 - 68.963 (2.7150 - 2.7151)
68.963 - 68.964 (2.7151 - 2.7151)
68.964 - 68.965 (2.7151 - 2.7152)
68.965 - 68.966 (2.7152 - 2.7152)
68.966 - 68.967 (2.7152 - 2.7152)
68.967 - 68.968 (2.7152 - 2.7153)

Difference in bore diameter between cylinders

Standard

Less than 0.03 (0.0012)

Items

Standard

Limit

Piston skirt diameter “A”

Grade No. 1

97.980 - 97.990 (3.8575 - 3.8579)

—

Grade No. 2

97.990 - 98.000 (3.8579 - 3.8583)

—

Grade No. 3

98.000 - 98.010 (3.8583 - 3.8587)

—

Grade No. 0
(Service)

98.180 - 98.210 (3.8653 - 3.8665)

0.20 (0.0079)

PBIC0188E

EM-254

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Piston Ring

Unit: mm (in)

Piston Pin

Unit: mm (in)

CONNECTING ROD

Unit: mm (in)

*: After installing in connecting rod

CRANKSHAFT

“H” dimension

39 (1.54)

—

Piston pin hole diameter

Grade No. 0

21.993 - 21.999 (0.8659 - 0.8661)

—

Piston to cylinder bore clearance

0.010 - 0.030 (0.0004 - 0.0012)

0.08 (0.0031)

Items

Standard

Limit

Side clearance

Top

0.035 - 0.085 (0.0014 - 0.0033)

0.11 (0.0043)

2nd

0.030 - 0.070 (0.0012 - 0.0028)

0.10 (0.0039)

Oil ring

0.015 - 0.050 (0.0006 - 0.0020)

—

End gap

Top

0.23 - 0.33 (0.0091 - 0.0130)

0.56 (0.0220)

2nd

0.25 - 0.40 (0.0098 - 0.0157)

0.52 (0.0205)

Oil ring

0.20 - 0.60 (0.0079 - 0.0236)

0.96 (0.0378)

Items

Standard

Piston pin diameter

Grade No. 0

21.989 - 21.995 (0.8657 - 0.8659)

Piston to piston pin clearance

0.002 - 0.006 (0.0001 - 0.0002)

Connecting rod bushing oil clearance

0.005 - 0.017 (0.0002 - 0.0007)

Items

Standard

Limit

Center distance

154.45 - 154.55 (6.08 - 6.08)

—

Bend [per 100 (3.94)]

—

0.15 (0.0059)

Torsion [per 100 (3.94)]

—

0.30 (0.0118)

Connecting rod bushing inside diameter*
(small end)

Grade No. 0

22.000 - 22.006 (0.8661 - 0.8664)

—

Connecting rod big end inside diameter (without bearing)

57.000 - 57.013 (2.2441 - 2.2446)

—

Side clearance

0.20 - 0.40 (0.0079 - 0.0157)

0.40 (0.0157)

Connecting rod bearing housing

Grade No. 0
Grade No. 1
Grade No. 2
Grade No. 3
Grade No. 4
Grade No. 5
Grade No. 6
Grade No. 7
Grade No. 8
Grade No. 9
Grade No. A
Grade No. B
Grade No. C

57.000 - 57.001 (2.2441 - 2.2441)
57.001 - 57.002 (2.2441 - 2.2442)
57.002 - 57.003 (2.2442 - 2.2442)
57.003 - 57.004 (2.2442 - 2.2443)
57.004 - 57.005 (2.2443 - 2.2443)
57.005 - 57.006 (2.2443 - 2.2443)
57.006 - 57.007 (2.2443 - 2.2444)
57.007 - 57.008 (2.2444 - 2.2444)
57.008 - 57.009 (2.2444 - 2.2444)
57.009 - 57.010 (2.2444 - 2.2445)

57.010 - 57.011 (2.2445 - 2.2445)
57.011 - 57.012 (2.2445 - 2.2446)

57.012 - 57.013 (2.2446 - 2.2446)

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-255

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

Unit: mm (in)

Main journal dia. “Dm” grade (No. 1 and 5)

Standard

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. 1
Grade No. 2
Grade No. 3
Grade No. 4
Grade No. 5
Grade No. 6
Grade No. 7
Grade No. 9

63.963 - 63.964 (2.5182 - 2.5183)
63.962 - 63.963 (2.5182 - 2.5182)
63.961 - 63.962 (2.5181 - 2.5182)
63.960 - 63.961 (2.5181 - 2.5181)
63.959 - 63.960 (2.5181 - 2.5181)
63.958 - 63.959 (2.5180 - 2.5181)
63.957 - 63.958 (2.5180 - 2.5180)
63.956 - 63.957 (2.5179 - 2.5180)
63.955 - 63.956 (2.5179 - 2.5179)
63.954 - 63.955 (2.5179 - 2.5179)
63.953 - 63.954 (2.5178 - 2.5179)
63.952 - 63.953 (2.5178 - 2.5178)
63.951 - 63.952 (2.5178 - 2.5178)
63.950 - 63.951 (2.5177 - 2.5178)
63.949 - 63.950 (2.5177 - 2.5177)
63.948 - 63.949 (2.5176 - 2.5177)
63.947 - 63.948 (2.5176 - 2.5176)
63.946 - 63.947 (2.5176 - 2.5176)
63.945 - 63.946 (2.5175 - 2.5176)
63.944 - 63.945 (2.5175 - 2.5175)
63.943 - 63.944 (2.5174 - 2.5175)
63.942 - 63.943 (2.5174 - 2.5174)
63.941 - 63.942 (2.5174 - 2.5174)
63.940 - 63.941 (2.5173 - 2.5174)

Main journal dia. “Dm” grade (No. 2, 3 and 4)

Standard

SEM645

PBIC1686E

EM-256

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

*: Total indicator reading

MAIN BEARING

Unit: mm (in)

Pin journal dia. “Dp”

Standard

Grade No. 0

53.968 - 53.974 (2.1247 - 2.1250)

Grade No. 1

53.962 - 53.968 (2.1245 - 2.1247)

Grade No. 2

53.956 - 53.962 (2.1243 - 2.1245)

Center distance “r”

45.96 - 46.04 (1.8094 - 1.8126)

Out-of-round (Difference between

″

and

″

)

Limit

0.002 (0.0001)

Taper (Difference between

″

and

″

)

0.002 (0.0001)

Runout [TIR*]

Less than 0.05 (0.002)

Crankshaft end play

Standard

0.10 - 0.26 (0.0039 - 0.0102)

Limit

0.30 (0.0118)

Grade number

UPR/LWR

Thickness

Identification color

Remarks

—

2.483 - 2.486 (0.0978 - 0.0979)

Black

Grade is the same for upper
and lower bearings

—

2.486 - 2.489 (0.0979 - 0.0980)

Brown

—

2.489 - 2.492 (0.0980 - 0.0981)

Green

—

2.492 - 2.495 (0.0981 - 0.0982)

Yellow

—

2.495 - 2.498 (0.0982 - 0.0983)

Blue

—

2.498 - 2.501 (0.0983 - 0.0985)

Pink

—

2.501 - 2.504 (0.0985 - 0.0986)

Purple

—

2.504 - 2.507 (0.0986 - 0.0987)

White

—

2.507 - 2.510 (0.0987 - 0.0988)

Red

PBIC0189E

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-257

< SERVICE DATA AND SPECIFICATIONS (SDS)

[VK56DE]

Undersize

Unit: mm (in)

Main Bearing Oil Clearance

Unit: mm (in)

Connecting Rod Bearing

Undersize

Unit: mm (in)

Connecting Rod Bearing Oil Clearance

Unit: mm (in)

UPR

2.483 - 2.486 (0.0978 - 0.0979)

Black

Grade is different for upper and
lower bearings.

LWR

2.486 - 2.489 (0.0979 - 0.0980)

Brown

UPR

2.486 - 2.489 (0.0979 - 0.0980)

Brown

LWR

2.489 - 2.492 (0.0980 - 0.0981)

Green

UPR

2.489 - 2.492 (0.0980 - 0.0981)

Green

LWR

2.492 - 2.495 (0.0981 - 0.0982)

Yellow

UPR

2.492 - 2.495 (0.0981 - 0.0982)

Yellow

LWR

2.495 - 2.498 (0.0982 - 0.0983)

Blue

UPR

2.495 - 2.498 (0.0982 - 0.0983)

Blue

LWR

2.498 - 2.501 (0.0983 - 0.0985)

Pink

UPR

2.498 - 2.501 (0.0983 - 0.0985)

Pink

LWR

2.501 - 2.504 (0.0985 - 0.0986)

Purple

UPR

2.501 - 2.504 (0.0985 - 0.0986)

Purple

LWR

2.504 - 2.507 (0.0986 - 0.0987)

White

UPR

2.504 - 2.507 (0.0986 - 0.0987)

White

LWR

2.507 - 2.510 (0.0987 - 0.0988)

Red

Undersize

Thickness

Main journal diameter

0.25 (0.0098)

2.618 - 2.626 (0.1031 - 0.1034)

Grind so that bearing clearance is the specified value.

Items

Standard

Limit

Main bearing oil clearance

No.1 and 5

0.001 - 0.011 (0.00004 - 0.0004)

0.021 (0.0008)

No.2, 3 and 4

0.007 - 0.017 (0.0003 - 0.0007)

0.027 (0.0011)

Grade number

Thickness “T”

mm (in)

Identification color (mark)

1.500 - 1.503 (0.0591 - 0.0592)

Black

1.503 - 1.506 (0.0592 - 0.0593)

Brown

1.506 - 1.509 (0.0593 - 0.0594)

Green

1.509 - 1.512 (0.0594 - 0.0595)

Yellow

Undersize

Thickness

Crank pin journal diameter “Dp”

0.25 (0.0098)

1.627 - 1.635 (0.0641 - 0.0644)

Grind so that bearing clearance is the specified value.

Items

Standard

Limit

Connecting rod bearing oil clearance

0.020 - 0.039 (0.0008 - 0.0015)

0.055 (0.0022)

EX-1

ENGINE

SECTION

CONTENTS

EXHAUST SYSTEM

PRECAUTION ...............................................

PRECAUTIONS ...................................................

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

PREPARATION ............................................

PREPARATION ...................................................

Special Service Tool .................................................

Commercial Service Tool .........................................

ON-VEHICLE MAINTENANCE .....................

EXHAUST SYSTEM ...........................................

Checking Exhaust System ........................................

ON-VEHICLE REPAIR ..................................

EXHAUST SYSTEM ...........................................

Removal and Installation ..........................................

Content .. 384 385 386 387 ..