Nissan Pathfinder (2010 year). Manual — part 389
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< DISASSEMBLY AND ASSEMBLY >
[VK56DE]
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”.
PBIC0110E
2010 Pathfinder
HOW TO SELECT PISTON AND BEARING
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Main Bearings Selection Table (No. 1 and No. 5 journal)
WBIA0608E
2010 Pathfinder
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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
2010 Pathfinder
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
2010 Pathfinder
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000005260539
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
2010 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
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Unit: mm (in)
SPARK PLUG
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*: Total indicator reading
Valve Seal
Unit: mm (in)
Valve Lifter
Unit: mm (in)
Valve Clearance
Items
Limit
Surface distortion
Exhaust manifold
0.3 (0.012)
Make
NGK
Standard type*
DILFR5A-11
Gap (nominal)
1.1 (0.043)
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 dimension (A) for No. 1 journal
30.500 - 30.548 (1.2008 - 1.2027)
Cylinder head dimension (B) for No. 1 journal
30.360 - 30.385 (1.1953 - 1.1963)
Camshaft sprocket runout [TIR*]
Less than 0.15 (0.0059)
SEM671
Items
Standard
Height (H) (without valve spring installed)
14.300 - 14.900 (0.5630 - 0.5870)
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)
2010 Pathfinder
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SERVICE DATA AND SPECIFICATIONS (SDS)
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
Available Valve Lifter
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information
CYLINDER HEAD
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)
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 (0.3157)
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
2010 Pathfinder
SERVICE DATA AND SPECIFICATIONS (SDS)
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Unit: mm (in)
Spark Plug Tube
Unit: mm (in)
Valve Dimensions
Unit: mm (in)
Items
Standard
Limit
Head surface distortion
0.03 (0.0012)
0.1 (0.004)
Nominal cylinder head height “H”
126.3 (4.97)
KBIA2554E
Items
Standard
Press fit height "H"
38.400 - 39.400 (1.512 - 1.551)
KBIA1248E
Valve head diameter “D”
Intake
37.0 - 37.3 (1.457 - 1.469)
Exhaust
31.2 - 31.5 (1.228 - 1.240)
Valve length “L”
Intake
96.21- 96.71 (3.7878 - 3.8075)
Exhaust
93.74 - 94.24 (3.6905 - 3.7102)
Valve stem diameter “d”
Intake
5.965 - 5.980 (0.2348 - 0.2354)
Exhaust
5.955 - 5.970 (0.2344 - 0.2350)
Valve seat angle “
α
”
Intake
45
°
15
′
- 45
°
45
′
Exhaust
SEM188
2010 Pathfinder
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