Nissan X-Trail 32. Manual — part 1058
HOW TO SELECT PISTON AND BEARING
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[MR20DD]
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MAIN BEARING SELECTION TABLE (No. 1 AND 4 JOURNAL)
PBIC4078E
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< 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
HOW TO SELECT PISTON AND BEARING
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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:
PBIC3263J
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< 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.
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