Nissan Frontier. Manual — part 729
HOW TO SELECT PISTON AND BEARING
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CAUTION:
There are two main bearing selection tables. One is for odd-numbered journals (No. 1, 3 and 5) and
the other is for even-numbered journals (No. 2 and 4). Make certain to use the appropriate table.
This is due to differences in the specified clearances.
4. Apply the symbol obtained to the “Main Bearing Grade Table” to select main bearing.
NOTE:
Service part is available as a set of both upper and lower.
Main Bearing Selection Table (No. 1, 3 and 5 journals)
PBIC2201E
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HOW TO SELECT PISTON AND BEARING
Main Bearing Selection Table (No. 2 and 4 journals)
Main Bearing Grade Table (All Journals)
Unit: mm (in)
PBIC2202E
Grade number*
Thickness
Identification color
Remarks
0
1.973 - 1.976 (0.0777 - 0.0778)
Black
Grade and color are the same
for upper and lower bearings.
1
1.976 - 1.979 (0.0778 - 0.0779)
Brown
2
1.979 - 1.982 (0.0779- 0.0780)
Green
3
1.982 - 1.985 (0.0780 - 0.0781)
Yellow
4
1.985 - 1.988 (0.0781 - 0.0783)
Blue
5
1.988 - 1.991 (0.0783 - 0.0784)
Pink
6
1.991 - 1.994 (0.0784 - 0.0785)
Purple
7
1.994 - 1.997 (0.0785 - 0.0786)
White
HOW TO SELECT PISTON AND BEARING
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*: Always check with the Parts Department for the latest parts information.
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:
In grinding crankshaft main journal to use undersize bearings,
keep fillet R [1.5 - 1.7 mm (0.059 - 0.067 in)].
Bearing undersize table
Unit: mm (in)
01
UPR
1.973 - 1.976 (0.0777 - 0.0778)
Black
Grade and color are different
for upper and lower bearings.
LWR
1.976 - 1.979 (0.0778 - 0.0779)
Brown
12
UPR
1.976 - 1.979 (0.0778 - 0.0779)
Brown
LWR
1.979 - 1.982 (0.0779 - 0.0780)
Green
23
UPR
1.979 - 1.982 (0.0779- 0.0780)
Green
LWR
1.982 - 1.985 (0.0780 - 0.0781)
Yellow
34
UPR
1.982 - 1.985 (0.0780 - 0.0781)
Yellow
LWR
1.985 - 1.988 (0.0781 - 0.0783)
Blue
45
UPR
1.985 - 1.988 (0.0781 - 0.0783)
Blue
LWR
1.988 - 1.991 (0.0783 - 0.0784)
Pink
56
UPR
1.988 - 1.991 (0.0783 - 0.0784)
Pink
LWR
1.991 - 1.994 (0.0784 - 0.0785)
Purple
67
UPR
1.991 - 1.994 (0.0784 - 0.0785)
Purple
LWR
1.994 - 1.997 (0.0785 - 0.0786)
White
Grade number*
Thickness
Identification color
Remarks
PBIC2200E
Size
Thickness
US 0.25 (0.0098)
2.106 - 2.114 (0.0829 - 0.0832)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000009478082
GENERAL SPECIFICATIONS
DRIVE BELT
EXHAUST MANIFOLD AND THREE WAY CATALYST ASSEMBLY
Unit: mm (in)
SPARK PLUG
*: Always check with the Parts Department for the latest parts information.
CYLINDER HEAD
Unit: mm (in)
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
9.5
Compression pressure
kPa (kg/cm
2
, psi) / 250 rpm
Standard
1,304 (13.3, 189)
Minimum
1,108 (11.3, 161)
Differential limit between cylinders
100 (1.0, 14)
Tension of drive belt
Auto adjustment by auto-tensioner
Item
Limit
Surface distortion
0.3 (0.012)
Make
NGK
Standard type*
PLZKAR6A–11
Gap (nominal)
1.1 mm (0.043 in)
Items
Limit
Head surface distortion
0.1 (0.004)
Items
Standard
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