Nissan X-Trail 32. Manual - part 1058

HOW TO SELECT PISTON AND BEARING

EM-129

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

C

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E

F

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A

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MAIN BEARING SELECTION TABLE (No. 1 AND 4 JOURNAL)

PBIC4078E

EM-130

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

HOW TO SELECT PISTON AND BEARING

MAIN BEARING SELECTION TABLE (No. 2, 3 AND 5 JOURNAL)

MAIN BEARING GRADE TABLE (ALL JOURNALS)

UNDERSIZE BEARING USAGE GUIDE

• When the specified main bearing oil clearance is not obtained with standard size main bearings, use under-

size (US) bearing. 

• When using undersize (US) bearing, measure the main bearing inner diameter with bearing installed, and

grind main journal so that the main bearing oil clearance satisfies the standard.

CAUTION:

PBIC4079E

Main bearing grade table (All journals)

: Refer to 

EM-141, "Main Bearing"

.

HOW TO SELECT PISTON AND BEARING

EM-131

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR20DD]

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In grinding crankshaft main journal to use undersize bearings,
keep the fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)] (A). 

Bearing undersize table:

Refer to 

EM-141, "Main Bearing"

.

PBIC3263J

EM-132

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[MR20DD]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specification

INFOID:0000000010783739

GENERAL SPECIFICATIONS

Unit: degree

Drive Belt

INFOID:0000000010783740

DRIVE BELT

Spark Plug

INFOID:0000000010783741

SPARK PLUG

Engine type

MR20DD

Cylinder arrangement

In-line 4

Displacement    cm

3

 (cu in)

1,997 (121.86)

Bore and stroke    mm (in)

84.0

×

90.1 (3.307

×

3.547)

Valve arrangement

DOHC

Firing order

1-3-4-2

Number of piston rings

Compression

2

Oil

1

Compression ratio

11.2

Compression pressure

kPa (bar, kg/cm

2

, psi)/250 rpm

Standard

1,530 (15.3, 15.6, 222)

Minimum

1,280 (12.8, 13.1, 186)

Differential limit between cylinders

100 (1.0, 1.0, 15)

Valve timing

: Intake valve

: Exhaust valve

VTC Minimum phasing (Mechanical)

VTC Maximum phasing (Mechanical)

a

EXH valve open-

ing angle

b

INT valve open-

ing angle

c

INT open

d

INT close

e

EXH close

f

EXH open

VTC Minimum 
phasing (Mechani-
cal)

220

240

18

78

0

40

VTC Maximum 
phasing (Mechani-
cal)

24

36

57

17

JPBIA6790GB

JPBIA6791GB

Tension of drive belt

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