Nissan Pathfinder (2006 year). Instruction — part 248
CYLINDER BLOCK
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2006 Pathfinder
●
Remove lower cylinder block and bearings, and using scale on
plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the “Method by Calculation”.
CRUSH HEIGHT OF MAIN BEARING
●
When lower cylinder block is removed after being tightened to
the specified torque with main bearings installed, the tip end of
bearing must protrude. Refer to
for the
tightening procedure.
●
If the standard is not met, replace main bearings.
CRUSH HEIGHT OF CONNECTING ROD BEARING
●
When connecting rod bearing cap is removed after being tight-
ened to the specified torque with connecting rod bearings
installed, the tip end of bearing must protrude. Refer to
for the tightening procedure.
●
If the standard is not met, replace connecting rod bearings.
LOWER CYLINDER BLOCK BOLT OUTER DIAMETER
●
Measure the outer diameters (“d
1
”, “d
2
”) at two positions as
shown.
●
If reduction appears in “A” range, regard it as “d
2
”.
●
If it exceeds the limit (large difference in dimensions), replace
lower cylinder block bolt with new one.
PBIC1149E
Standard
: There must be crush height.
SEM502G
Standard
: There must be crush height.
PBIC1646E
Limit (“d
1
” – “d
2
”)
: 0.11 mm (0.0051 in)
PBIC0911E
EM-132
CYLINDER BLOCK
2006 Pathfinder
CONNECTING ROD BOLT OUTER DIAMETER
●
Measure the outer diameter “d” at position shown.
●
If the reduction appears in a position other than “d”, regard it as
“d”.
●
When “d” exceeds the limit (when it becomes thinner), replace
connecting rod bolt with new one.
DRIVE PLATE
●
Check drive plate and signal plate for deformation or cracks.
CAUTION:
●
Do not disassemble drive plate.
●
Do not place drive plate with signal plate facing down.
●
When handling signal plate, take care not to damage or
scratch it.
●
Handle signal plate in a manner that prevents it from
becoming magnetized.
●
If anything is found, replace drive plate.
OIL JET
●
Check nozzle for deformation and damage.
●
Blow compressed air from nozzle, and check for clogs.
●
If it is not satisfied, clean or replace oil jet.
OIL JET RELIEF VALVE
●
Using clean plastic stick, press check valve in oil jet relief valve.
Make sure that valve moves smoothly with proper reaction
force.
●
If it is not satisfied, replace oil jet relief valve.
Limit
: 7.75 mm (0.3051 in)
PBIC0912E
PBIC2938E
EMU0468D
SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00100
Standard and Limit
EBS00QCD
GENERAL SPECIFICATIONS
Cylinder arrangement
V-6
Displacement
cm
3
(cu in)
3,954 (241.30)
Bore and stroke
mm (in)
95.5
×
92.0 (3.76
×
3.622)
Valve arrangement
DOHC
Firing order
1-2-3-4-5-6
Number of piston rings
Compression
2
Oil
1
Number of main bearings
4
Compression ratio
9.7
Compression pressure
kPa (kg/cm
2
, psi)/300 rpm
Standard
1,275 (13.0, 185)
Minimum
981 (10.0, 142)
Differential limit between cylinders
98 (1.0, 14)
Cylinder number
Valve timing
(Intake valve timing control - “OFF”)
Unit: degree
a
b
c
d
e
f
244
240
−
4
64
6
58
SEM713A
PBIC0187E
EM-134
SERVICE DATA AND SPECIFICATIONS (SDS)
2006 Pathfinder
DRIVE BELT
INTAKE MANIFOLD COLLECTOR, INTAKE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Tension of drive belts
Auto adjustment by auto tensioner
Items
Limit
Surface distortion
Intake manifold
0.1 (0.004)
Exhaust manifold
0.3 (0.012)
Make
NGK
Standard type
PLFR5A-11
Hot type
PLFR4A-11
Cold type
PLFR6A-11
Gap (nominal)
1.1 mm (0.043 in)
SERVICE DATA AND SPECIFICATIONS (SDS)
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CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*
1
: Total indicator reading
Valve Lifter
Unit: mm (in)
Valve Clearance
Unit: mm (in)
*: Approximately 80
°
C (176
°
F)
Items
Standard
Limit
Camshaft journal oil clearance
No. 1
0.045 - 0.086 (0.0018 - 0.0034)
0.15 (0.0059)
No. 2, 3, 4
0.035 - 0.076 (0.0014 - 0.0030)
Camshaft bracket inner diameter
No. 1
26.000 - 26.021 (1.0236 - 1.0244)
—
No. 2, 3, 4
23.500 - 23.521 (0.9252 - 0.9260)
—
Camshaft journal diameter
No. 1
25.935 - 25.955 (1.0211 - 1.0218)
—
No. 2, 3, 4
23.445 - 23.465 (0.9230 - 0.9238)
—
Camshaft end play
0.115 - 0.188 (0.0045 - 0.0074)
0.24 (0.0094)
Camshaft cam height “A”
Intake
45.465 - 45.655 (1.7900 - 1.7921)
45.265 (1.7821)
Exhaust
45.075 - 45.265 (1.7746 - 1.7821)
44.875 (1.7667)
Camshaft runout [TIR*
1
]
Less than 0.02 mm (0.001)
0.05 (0.002)
Camshaft sprocket runout [TIR*
2
]
—
0.15 (0.0059)
SEM671
Items
Standard
Valve lifter outer diameter
33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter hole diameter
34.000 - 34.016 (1.3386 - 1.3392)
Valve lifter clearance
0.013 - 0.039 (0.0005 - 0.0015)
Items
Cold
Hot* (reference data)
Intake
0.26 - 0.34 (0.010 - 0.013)
0.304 - 0.416 (0.012 - 0.016)
Exhaust
0.29 - 0.37 (0.011 - 0.015)
0.308 - 0.432 (0.012 - 0.017)
EM-136
SERVICE DATA AND SPECIFICATIONS (SDS)
2006 Pathfinder
Available Valve Lifter
VQ40DE
Unit: mm (in)
Identification (stamped) mark
Thickness
Intake
Exhaust
788U
N788
7.88 (0.3102)
790U
N790
7.90 (0.3110)
792U
N792
7.92 (0.3118)
794U
N794
7.94 (0.3126)
796U
N796
7.96 (0.3134)
798U
N798
7.98 (0.3142)
800U
N800
8.00 (0.3150)
802U
N802
8.02 (0.3157)
804U
N804
8.04 (0.3165)
806U
N806
8.06 (0.3173)
808U
N808
8.08 (0.3181)
810U
N810
8.10 (0.3189)
812U
N812
8.12 (0.3197)
814U
N814
8.14 (0.3205)
816U
N816
8.16 (0.3213)
818U
N818
8.18 (0.3220)
820U
N820
8.20 (0.3228)
822U
N822
8.22 (0.3236)
824U
N824
8.24 (0.3244)
826U
N826
8.26 (0.3252)
828U
N828
8.28 (0.3260)
830U
N830
8.30 (0.3268)
832U N832
8.32
(0.3276)
834U
N834
8.34 (0.3283)
836U
N836
8.36 (0.3291)
838U
—
8.38 (0.3299)
840U
—
8.40 (0.3307)
SEM758G
SERVICE DATA AND SPECIFICATIONS (SDS)
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CYLINDER HEAD
Unit: mm (in)
Valve Dimensions
Unit: mm (in)
Items
Standard
Limit
Head surface distortion
Less than 0.03 (0.0012)
0.1 (0.004)
Normal cylinder head height “H”
126.3 - 126.5 (4.972 - 4.980)
—
PBIC0924E
Valve head diameter “D”
Intake
37.0 - 37.3 (1.4567 - 1.4685)
Exhaust
31.2 - 31.5 (1.228 - 1.240)
Valve length “L”
Intake
96.46 (3.7976)
Exhaust
93.99 (3.7004)
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
Valve margin “T”
Intake
1.1 (0.043)
Exhaust
1.3 (0.051)
SEM188
EM-138
SERVICE DATA AND SPECIFICATIONS (SDS)
2006 Pathfinder
Valve Guide
Unit: mm (in)
Valve Seat
Unit: mm (in)
Items
Standard
0.2 (0.008) oversize (Service)
Valve guide
Outer diameter
10.023 - 10.034 (0.3946 - 0.3950)
10.223 - 10.234 (0.4025 - 0.4029)
Inner diameter (Finished size)
6.000 - 6.018 (0.2362 - 0.2369)
Cylinder head valve guide hole diameter
9.975 - 9.996 (0.3927 - 0.3935)
10.175 - 10.196 (0.4006 - 0.4014)
Interference fit of valve guide
0.027 - 0.059 (0.0011 - 0.0023)
Items
Standard
Limit
Valve guide clearance
Intake
0.020 - 0.053 (0.0008 - 0.0021)
0.08 (0.003)
Exhaust
0.030 - 0.063 (0.0012 - 0.0025)
0.09 (0.004)
Projection length “L”
12.6 - 12.8 (0.496 - 0.504)
SEM950E
Items
Standard
Oversize [0.5 (0.02)] (Service)
Cylinder head seat recess diameter “D”
Intake
38.000 - 38.016 (1.4961 - 1.4967)
38.500 - 38.516 (1.5157 - 1.5164)
Exhaust
32.200 - 32.216 (1.2677 - 1.2683)
32.700 - 32.716 (1.2874 - 1.2880)
Valve seat outer diameter “d”
Intake
38.097 - 38.113 (1.4999 - 1.5005)
38.597 - 38.613 (1.5196 - 1.5202)
Exhaust
32.280 - 32.296 (1.2709 - 1.2715)
32.780 - 32.796 (1.2905 - 1.2912)
Valve seat interference fit
Intake
0.081 - 0.113 (0.0032 - 0.0044)
Exhaust
0.064 - 0.096 (0.0025 - 0.0038)
Diameter “d1”*
1
Intake
35 (1.38)
Exhaust
28.7 (1.130)
Diameter “d2”*
2
Intake
36.3 - 36.8 (1.429 - 1.449)
Exhaust
30.3 - 30.8 (1.193 - 1.213)
Angle “
α
1”
Intake
60
°
Exhaust
60
°
Angle “
α
2”
Intake
88
°
45
′
- 90
°
15
′
Exhaust
88
°
45
′
- 90
°
15
′
PBIC2745E
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