Nissan Frontier D40. Instruction — part 593
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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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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:0000000005274301
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
SERVICE DATA AND SPECIFICATIONS (SDS)
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VALVE
Valve Timing
Valve Dimensions
Unit: mm (in)
Camshaft bearing surface length
25.660 - 25.685 (1.0102 - 1.0112)
Items
Limit
PBIC0283E
Valve timing
Unit: degree
a
b
c
d
e
f
236
224
-4
60
32
37
PBIC0187E
Valve head diameter “D”
Intake
35.5 - 35.8 (1.398 - 1.409)
Exhaust
30.5 - 30.8 (1.201 - 1.213)
Valve length “L”
Intake
97.16 (3.8252)
Exhaust
98.82 (3.8905)
Valve stem diameter “d”
Intake
5.965 - 5.980 (0.2348 - 0.2354)
Exhaust
5.955 - 5.970 (0.2344 - 0.2350)
SEM188A
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