Nissan Pathfinder (2008 year). Manual — part 385
HOW TO SELECT PISTON AND BEARING
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Connecting Rod Bearing Selection Table
Connecting Rod Bearing Grade Table.
Undersize Bearings Usage Guide
• When the specified oil clearance is not obtained with standard size connecting rod bearings, use undersize
(US) bearings.
• When using undersize bearing, measure the bearing inside diameter with the bearing installed, and grind the
crankshaft pin so that the oil clearance satisfies the standard.
Bearing undersize table
Unit: mm (in)
CAUTION:
In grinding the crankshaft pin to use undersize bearings, keep
the fillet R (All crankshaft pins).
HOW TO SELECT MAIN BEARING
When New Cylinder Block and Crankshaft are Used
1.
Apply the main bearing housing grade on the bottom face of the
cylinder block to the row in "Main Bearings Selection Table".
KBIA2538E
Grade number
Thickness “T”
mm (in)
Identification color (mark)
0
1.500 - 1.503 (0.0591 - 0.0592)
Black
1
1.503 - 1.506 (0.0592 - 0.0593)
Brown
2
1.506 - 1.509 (0.0593 - 0.0594)
Green
3
1.509 - 1.512 (0.0594 - 0.0595)
Yellow
Undersize
Thickness
0.25 (0.0098)
1.627 - 1.635 (0.0641 - 0.0644)
Fillet R
: 1.5 - 1.7 mm (0.059 - 0.067 in)
PBIC0111E
KBIA2495E
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HOW TO SELECT PISTON AND BEARING
2.
Apply the journal diameter grade on the crankshaft front to the
column in "Main Bearings Selection Table".
3.
Read the symbol at the cross point of the selected row and column in the "Main Bearings Selection Table".
CAUTION:
• Initial clearance for No. 1, 5 journal and No. 2, 3, 4 journal is different. Use two different selection
lists for each part.
• No. 1, 5 journal and No. 2, 3, 4 journal have the same signs but different measures. Do not con-
fuse them.
4.
Apply the symbol to the "Main Bearings Grade Table" to select.
NOTE:
• Grade list applies to all journals.
• Service parts are available as a set of both upper and lower.
When Cylinder Block and Crankshaft are Reused
1.
Measure the inside diameter of the cylinder block main bearings housing and the outside diameter of the
crankshaft journal.
2.
Apply measurement in above step 1 to "Main Bearings Selection Table".
3.
The following steps are same as in “When New Cylinder Block and Crankshaft are Used”. Follow the
"HOW TO SELECT MAIN BEARING" procedure.
PBIC0110E
HOW TO SELECT PISTON AND BEARING
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Main Bearings Selection Table (No. 1 and No. 5 journal)
WBIA0608E
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HOW TO SELECT PISTON AND BEARING
Main Bearings Selection Table (No. 2, 3 and 4 journal)
Main Bearings Grade Table (All Journals)
Unit: mm (in)
WBIA0609E
Grade number
UPR/LWR
Thickness
Identification color
Remarks
0
—
2.483 - 2.486 (0.0978 - 0.0979)
Black
Grade is the same for upper
and lower bearings.
1
—
2.486 - 2.489 (0.0979 - 0.0980)
Brown
2
—
2.489 - 2.492 (0.0980 - 0.0981)
Green
3
—
2.492 - 2.495 (0.0981 - 0.0982)
Yellow
4
—
2.495 - 2.498 (0.0982 - 0.0983)
Blue
5
—
2.498 - 2.501 (0.0983 - 0.0985)
Pink
6
—
2.501 - 2.504 (0.0985 - 0.0986)
Purple
7
—
2.504 - 2.507 (0.0986 - 0.0987)
White
8
—
2.507 - 2.510 (0.0987 - 0.0988)
Red
HOW TO SELECT PISTON AND BEARING
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Use Undersize Bearing Usage Guide
• Use undersize (US) bearing when the oil clearance with standard size main bearing is not within specifica-
tion.
• When using undersize (US) bearing, measure the inside diameter of the bearing installed and grind the jour-
nal until the oil clearance falls within specification.
Bearing undersize table
Unit: mm (in)
CAUTION:
Do not damage fillet R when grinding crankshaft journal in
order to use undersized bearing (All journals).
01
UPR
2.483 - 2.486 (0.0978 - 0.0979)
Black
Grade and color are different
for upper and lower bearings.
LWR
2.486 - 2.489 (0.0979 - 0.0980)
Brown
12
UPR
2.486 - 2.489 (0.0979 - 0.0980)
Brown
LWR
2.489 - 2.492 (0.0980 - 0.0981)
Green
23
UPR
2.489 - 2.492 (0.0980 - 0.0981)
Green
LWR
2.492 - 2.495 (0.0981 - 0.0982)
Yellow
34
UPR
2.492 - 2.495 (0.0981 - 0.0982)
Yellow
LWR
2.495 - 2.498 (0.0982 - 0.0983)
Blue
45
UPR
2.495 - 2.498 (0.0982 - 0.0983)
Blue
LWR
2.498 - 2.501 (0.0983 - 0.0985)
Pink
56
UPR
2.498 - 2.501 (0.0983 - 0.0985)
Pink
LWR
2.501 - 2.504 (0.0985 - 0.0986)
Purple
67
UPR
2.501 - 2.504 (0.0985 - 0.0986)
Purple
LWR
2.504 - 2.507 (0.0986 - 0.0987)
White
78
UPR
2.504 - 2.507 (0.0986 - 0.0987)
White
LWR
2.507 - 2.510 (0.0987 - 0.0988)
Red
Undersize
Thickness
0.25 (0.0098)
2.618 - 2.626 (0.1031 - 0.1034)
Fillet R
: 1.5 - 1.7 mm (0.059 - 0.067 in)
PBIC0111E
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000001282041
GENERAL SPECIFICATIONS
DRIVE BELTS
EXHAUST MANIFOLD
Cylinder arrangement
V-8
Displacement
cm
3
(in
3
)
5,552 (338.80)
Bore and stroke
mm (in)
98 x 92 (3.86 x 3.62)
Valve arrangement
DOHC
Firing order
1-8-7-3-6-5-4-2
Number of piston rings
Compression
2
Oil
1
Number of main bearings
5
Compression ratio
9.8:1
Compression pressure kPa
(kg/cm
2
, psi)/rpm
Standard
1,520 (15.5, 220)/200
Minimum
1,324 (13.5, 192)/200
Differential limit between cylinders
98 (1.0, 14)/200
Cylinder number
Valve timing
Unit: degree
a
b
c
d
e
f
244
°
232
°
8
°
60
°
10
°
54
°
SEM957C
PBIC0187E
Tension of drive belts
Auto adjustment by auto tensioner
SERVICE DATA AND SPECIFICATIONS (SDS)
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Unit: mm (in)
SPARK PLUG
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*: Total indicator reading
Valve Lifter
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
Available Valve Lifter
Items
Limit
Surface distortion
Exhaust manifold
0.3 (0.012)
Make
NGK
Standard type
DILFR5A-11
Gap (nominal)
1.1 mm (0.043 in)
Items
Standard
Camshaft runout [TIR*]
Less than 0.02 (0.0008)
Camshaft cam height “A”
Intake
44.865 - 45.055 (1.7663 - 1.7738)
Exhaust
45.075 - 45.265 (1.7746 - 1.7821)
Cam wear limit
0.02 (0.0008)
Outside diameter of camshaft journal
25.950 - 25.970 (1.0217 - 1.0224)
Camshaft bracket inside diameter
26.000 - 26.021 (1.0236 - 1.0244)
Camshaft journal clearance
0.030 - 0.071 (0.0012 - 0.0028)
Camshaft end play
0.115 - 0.188 (0.0045 - 0.0074)
Camshaft sprocket runout [TIR*]
Less than 0.15 (0.0059)
SEM671
Items
Standard
Valve lifter diameter
33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter hole diameter
34.000 - 34.016 (1.3386 - 1.3392)
Clearance between lifter and lifter guide
0.013 - 0.039 (0.0005 - 0.0015)
Items
Hot*
Cold
Intake
0.304 - 0.416 (0.012 - 0.016)
0.26 - 0.34 (0.010 - 0.013)
Exhaust
0.308 - 0.432 (0.012 - 0.017)
0.29 - 0.37 (0.011 - 0.015)
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SERVICE DATA AND SPECIFICATIONS (SDS)
Unit: mm (in)
CYLINDER HEAD
Unit: mm (in)
Identification (stamped) Mark
Thickness
N788
7.88 (0.3102)
N790
7.90 (0.3110)
N792
7.92 (0.3118)
N794
7.94 (0.3126)
N796
7.96 (0.3134)
N798
7.98 (0.3142)
N800
8.00 (0.3150)
N802
8.02 (03.157)
N804
8.04 (0.3165)
N806
8.06 (0.3173)
N808
8.08 (0.3181)
N810
8.10 (0.3189)
N812
8.12 (0.3197)
N814
8.14 (0.3205)
N816
8.16 (0.3213)
N818
8.18 (0.3220)
N820
8.20 (0.3228)
N822
8.22 (0.3236)
N824
8.24 (0.3244)
N826
8.26 (0.3252)
N828
8.28 (0.3260)
N830
8.30 (0.3268)
N832 8.32
(0.3276)
N834
8.34 (0.3283)
N836
8.36 (0.3291)
SEM758G
Items
Standard
Limit
Head surface distortion
0.03 (0.0012)
0.1 (0.004)
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