Nissan X-Trail 32. Manual - part 1094

HOW TO SELECT PISTON AND BEARING

EM-273

< UNIT DISASSEMBLY AND ASSEMBLY >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

Bearing undersize table

: Refer to 

EM-283, "Main Bearing"

.

EM-274

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[QR25DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000010783829

GENERAL SPECIFICATIONS

Unit: degree

Engine type

QR25DE

Cylinder arrangement

In-line 4

Displacement

cm

3

 (cu in)

2,488 (151.82)

Bore and stroke

mm (in)

89.0 x 100.0 (3.504 x 3.937)

Valve arrangement

DOHC

Firing order

1-3-4-2

Number of piston rings

Compression

2

Oil

1

Compression ratio

10.0

Compression pressure

kPa (bar, kg/cm

2

, psi)/250 rpm

Standard

1,410 (14.1, 14.4, 204.7)

Minimum

1,220 (12.2, 12.1, 176.3)

Differential limit between cylinders

100 (1.0, 1.0, 14)

Valve timing

 : Intake valve

 : Exhaust valve

VTC Minimum phasing (Mechanical)

VTC Maximum phasing (Mechanical)

Engine start (Mechanical)

a

EXH valve 

opening angle

b

INT valve

opening angle

c

INT open

d

INT close

e

EXH close

f

EXH open

JSBIA3409ZZ

JSBIA3410ZZ

JSBIA3411ZZ

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-275

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

*1: When running at idle with engine coolant temperature more than 60

°

C (140

°

F).

*2: When the intake or exhaust valve opening angle is at the maximum.

*3: When starting the engine with engine coolant temperature 60

°

C (140

°

F) or less.

Drive belt

INFOID:0000000010783830

DRIVE BELT

Spark Plug

INFOID:0000000010783831

SPARK PLUG

Unit: mm (in)

Exhaust Manifold

INFOID:0000000010783832

EXHAUST MANIFOLD

Unit: mm (in)

Camshaft

INFOID:0000000010783833

CAMSHAFT

Unit: mm (in)

VTC Minimum phasing 

(Mechanical) 

*1

224

244

5

ATDC

69

ABDC

3

ATDC

41

BBDC

VTC Maximum phasing 

(Mechanical) 

*2

35

BTDC

29

ABDC

48

ATDC

4

ABDC

Intermediate lock phasing 

(Mechanical) 

*3

5

BTDC

59

ABDC

3

ATDC

41

BBDC

Tension of drive belt

Belt tension is not necessary, as it is automatically adjusted by drive belt auto-tensioner.

Make

DENSO

Standard type

FXE20HE11

Spark plug gap (Nominal)

1.1 (0.043)

Items

                                Limit

Surface distortion

Exhaust manifold

0.3 (0.012)

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 diameter

No. 1

27.935 - 27.955 (1.0998 - 1.1006)

—

No. 2, 3, 4, 5

23.435 - 23.455 (0.9226 - 0.9234)

—

SEM671

EM-276

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[QR25DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

*

1

: Cam wear limit

*

2

: Total indicator reading

VALVE LIFTER

Unit: mm (in)

VALVE CLEARANCE

Unit: mm (in)

*: Approximately 80

°

C (176

°

F)

AVAILABLE VALVE LIFTER

Unit: mm (in)

Camshaft end play

0.115 - 0.188 (0.0045 - 0.0074)

—

Camshaft cam height “A”

Intake

45.865 - 46.055 (1.8057 - 1.8132)

0.2 (0.008)*

1

Exhaust

44.175 - 44.365 (1.7392 - 1.7467)

Camshaft runout [TIR*

2

]

Less than 0.02 mm (0.0008)

—

Camshaft sprocket runout [TIR*

2

]

—

0.15 (0.0059)

Items

Standard

Valve lifter outer diameter

CHINA production model

33.977 - 33.987 (1.3377 - 1.3381)

THAILAND production model

33.980 - 33.990 (1.3378 - 1.3382)

Valve lifter hole diameter

34.000 - 34.021 (1.3386 - 1.3394)

Valve lifter clearance

CHINA production model

0.013 - 0.044 (0.0005 - 0.0017)

THAILAND production model

0.010 - 0.041 (0.0004 - 0.0016)

Items

Cold

Hot* (reference data)

Intake

0.24 - 0.32 (0.094 - 0.0126)

0.304 - 0.416 (0.0120 - 0.0164)

Exhaust

0.26 - 0.34 (0.0102 - 0.0134)

0.308 - 0.432 (0.0121 - 0.0170)

Thickness 

Identification (stamped)

*

 mark 

CHINA production model

THAILAND production model

3.00 (0.1181)

300

300N or 300n

3.02 (0.1189)

302

302N or 302n

3.04 (0.1197)

304

304N or 304n

3.06 (0.1205)

306

306N or 306n

3.08 (0.1213)

308

308N or 308n

3.10 (0.1220)

310

310N or 310n

3.12 (0.1228)

312

312N or 312n

3.14 (0.1236)

314

314N or 314n

3.16 (0.1244)

316

316N or 316n

3.18 (0.1252)

318

318N or 318n

JPBIA0170ZZ