2014 NISSAN TEANA width

EM-78
< REMOVAL AND INSTALLATION >[QR25DE]
CYLINDER HEAD
4. Install new valve oil seal using Tool (A) as shown.
5. Install valve. • Install larger diameter to intake side.
6. Install valve spring with valve spring seat (1). • Install valve spring so that the identification color faces upward
(A).
• Install smaller pitch to cylinder head side (B).
• Confirm the identification color of the valve spring.
• Intake: white
• Exhaust: light blue
7. Install valve spring retainer.
8. Install valve collet. • Compress valve spring using Tools. Install valve collet with amagnet hand.
CAUTION:
When working take care not to damage valve lifter holes.
• Tap valve stem edge lightly with a plastic hammer after instal-
lation to check its installed condition.
9. Install valve lifter.
10. Install spark plug tube.
a. Remove old liquid gasket from cylinder head mounting hole.
b. Apply liquid gasket all around on spark plug tube with a 12 mm (0.47 in) width from edge of spark plug tube on the press fit side.
• Use Three Bond or equivalent. Refer to GI-21, "Recom-
mended Chemical Products and Sealants".
c. Press fit spark plug tube so that height (H) is as shown.
CAUTION:
• When press fitting be careful not to deform spark plug
tube.
• After press fitting, wipe off any protruding liquid gasket on top surface of cylinder head.
Inspection After DisassemblyINFOID:0000000009460506
CYLINDER HEAD DISTORTION
Oil seal installed height (H) : 12.1 mm (0.476 in)
Tool number : KV10115600 (J-38958)
ALBIA0864GB
JPBIA4479ZZ
Tool number (A) : KV10116200 (J-26336-A)
Tool number (B) : KV10109220 ( — )
Tool number (C) : KV10115900 (J-26336-20)
JPBIA1365ZZ
Press fit height (H) standard value : 41.7 mm (1.642 in)
ALBIA0870GB
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-103
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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CRANKSHAFT RUNOUT
• Place a V-block on a precise flat table to support the journals on
both ends of the crankshaft.
• Place a dial gauge (A) straight up on the No. 3 journal.
• While rotating the crankshaft, read the movement of the pointer on the dial gauge (A), the total indicator runout reading.
OIL CLEARANCE OF CONNECTING ROD BEARING
Method of Measurement
• Install the connecting rod bearings (2) to the connecting rod (3)
and the cap (1), and tighten the c onnecting rod bolts to the speci-
fied torque. Using a inside micrometer measure the inner diameter
of connecting rod bearing (B).
(Oil clearance) = (Inner diameter of connecting rod bearing) –
(Outer diameter of crankshaft pin)
• If clearance cannot be adjusted within the standard, grind crankshaft pin and use undersized bearing. Refer
to EM-105, "How to Select Piston and Bearing"
.
Method of Using Plastigage
• Remove oil and dust on the crankshaft pin and the surfaces of
each bearing completely.
• Cut the Plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil holes.
• Install the connecting rod bearings to the connecting rod cap, and tighten the connecting rod bolts to the specified torque.
CAUTION:
Do not rotate the crankshaft.
• Remove the connecting rod cap and bearings, and using the scale on the 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.
OIL CLEARANCE OF MAIN BEARING
Method of Measurement
• Install the main bearings to the cylinder block and bearing cap. Measure the main bearing inner diameter with the bearing cap bolt tightened to the specified torque.
(Oil clearance) = (Inner diameter of main beari ng) – (Outer diameter of crankshaft journal)
• If the measured value exceeds the limit, select main bearings referring to the main bearing inner diameter
and crankshaft journal outer diameter, so that t he oil clearance satisfies the standard. Refer to EM-105,
"How to Select Piston and Bearing".
Limit : Less than 0.05 mm (0.002 in)
AWBIA1367ZZ
(A) Example
Standard : 0.035 - 0.045 mm (0.0014 - 0.0018 in)
Limit : 0.10 mm (0.0039 in)
AWBIA1369ZZ
EM142
Standard:
No. 1, 3, and 5 journals : 0.012 - 0.022 mm (0.0005 - 0.0009 in)
No. 2 and 4 journals : 0.018 - 0.028 mm (0.0007 - 0.0011 in)
Limit : 0.1 mm (0.004 in)
Revision: November 20132014 Altima NAM

EM-104
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
Method of Using Plastigage
• Remove oil and dust on the crankshaft journal and the surfaces of
each bearing completely.
• Cut the Plastigage slightly shorter than the bearing width, and
place it in crankshaft axial direction, avoiding oil holes.
• Tighten the main bearing bolts to the specified torque. CAUTION:
Do not rotate the crankshaft.
• Remove the bearing cap and bearings, and using the scale on the 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 the bearing cap is removed after being tightened to the specified torque with main bearings installed, the tip end of bearing
must protrude.
• If the standard is not met, replace main bearings.
OUTER DIAMETER OF LOWER CYLINDER BLOCK BOLT
• Perform only with M10 (0.39 in) bolts.
• Measure outer diameters (d1, d2) at two positions as shown.
• Measure d2 at a point within area (A) as shown.
• When the value of d1- d2 exceeds the limit (a large difference in dimensions), replace the bolt with a new one.
OUTER DIAMETER OF CONNECTING ROD BOLT
• Measure outer diameter (d) at position as shown.
• When (d) exceeds the limit (when it becomes thinner), replace the
bolt with a new one.
EM142
Standard : There must be crush height.
SEM502G
Limit : 0.13 mm (0.0051 in)
PBIC0272E
Limit : 7.75 mm (0.3051 in) or less
PBIC0273E
Revision: November 20132014 Altima NAM

EM-116
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*1 Machining data
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
*: Total indicator reading
CYLINDER BLOCK
Angle (
α1) Intake 60
°
Exhaust 60 °
Angle ( α2) Intake 88
° 46' - 90 ° 14'
Exhaust 88 ° 46' - 90 ° 14'
Angle ( α3) Intake 120
°
Exhaust 120 °
Contacting width (W)*1 Intake 0.99 - 1.35 (0.0390 - 0.0531)
Exhaust 1.19 - 1.55 (0.0469 - 0.0610)
Standard
Camshaft runout [TIR*] Less than 0.02 (0.0008)
Cam height (A) Intake 45.865 - 46.055 (1.8057 - 1.8132)
Exhaust 44.175 - 44.365 (1.7392 - 1.7467)
Outer diameter of camshaft journal No. 1
27.935 - 27.955 (1.0998 - 1.1006)
No. 2, 3, 4, 5
23.435 - 23.455 (0.9226 - 0.9234)
Inner diameter of camshaft bracket No.1
28.000 - 28.021 (1.1024 - 1.1032)
No.2, 3, 4, 5
23.500 - 23.521 (0.9252 - 0.9260)
Camshaft journal clearance 0.045 - 0.086 (0.0018 - 0.0034)
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074)
Camshaft sprocket runout [TIR*] Less than 0.15 (0.0059)
SEM671
Revision: November 20132014 Altima NAM

EM-216
< REMOVAL AND INSTALLATION >[VQ35DE]
CYLINDER HEAD
8. Use a depth gauge to measure the distance between the mount-
ing surface of the cylinder head spring seat and the valve stem
end. If the distance is shorter than specified, repeat step 5 to
adjust it. If it is longer, replace the valve seat with a new one.
VALVE SPRING SQUARENESS
Set try square along the side of valve spring and rotate the spring.
Measure the maximum clearance between the top face of spring and
try square.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check valve spring pressure at specified spring height.
If it is not within specif ications, replace the spring.
Seat face angle
α : 45° 15' - 45 ° 45' de-
grees/minutes
Contacting width (W) fo r intake : 1.18 - 1.22 mm
(0.0465 - 0.0480 in)
Contacting width (W) fo r exhaust : 1.38 - 1.42 mm
(0.0543 - 0.0559 in)
SEM892B
Valve seat resurface limit (L)
intake : 41.16 - 41.76 mm
(1.6205 - 1.6441 in)
Valve seat resurface limit (L)
exhaust : 41.09 - 41.69 mm
(1.6177 - 1.6413 in)
SEM621F
Out-of-square limit : L ess than 2.0 mm (0.079 in)
PBIC0080E
Standard : 166 - 188 N (16.9 - 19.2 kg, 37.3 - 42.3 lb) at
height 37.0 mm (1.457 in)
Limit : 373 - 421 N (38.0 - 42.9 kg, 84 - 95 lb) at height 27.2 mm (1.071 in)
SEM113
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-243
< UNIT DISASSEMBLY AND ASSEMBLY > [VQ35DE]
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Connecting Rod Bearing (Big End)
1. Install the connecting rod bearing to the connecting rod and cap.
2. Install the connecting rod cap to the connecti ng rod. Tighten to specification. Refer to EM-224, "Disassem-
bly and Assembly".
3. Measure the inner diameter (C) of each connecting rod (big end) as shown.
4. Measure the outer diameter (Dp) of each crankshaft pin journal.
5. Calculate the connecting rod bearing clearance. Connecting rod bearing clearance = (C) - (Dp)
6. If the calculated clearance exceeds the specified limit, replace the bearings.
7. If the clearance cannot be adjusted within the standard of any bearing, grind the crankshaft journal and use undersized bear-
ings.
8. If the crankshaft is replaced with a new one, select the connect-
ing rod bearings according to the following table:
Connecting Rod Bearing Grad e Number (Identification
Color)
These numbers are punched in eit her Arabic or Roman numer-
als.
Method B (Using Plastigage)
• Remove oil and dust on the crankshaft pin and the surfaces of each bearing completely.
• Cut a Plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil holes.
• Install the connecting rod bearings to the connecting rod cap, and tighten the connecting rod nuts to the specified torque.
CAUTION:
Do not rotate the crankshaft.
• Remove the connecting rod cap and bearings, and using the scale on the Plastigage bag, measure the Plastigage width.
NOTE:
The procedure when the measured value exceeds the repair limit
is same as that described in "Method A (Using Bore Gauge and Micrometer)".
DRIVE PLATE RUNOUT
AEM027
Standard : 0.020 - 0.045 mm (0.0008 - 0.0018 in)
Limit : 0.070 mm (0.0028 in)
AEM034
Crankshaft pin journal grade number Connecting rod bearing grade
number
0 0 (black)
1 1 (brown)
2 2 (green)
SEM452G
SEM142
Revision: November 20132014 Altima NAM

SERVICE DATA AND SPECIFICATIONS (SDS)EM-251
< SERVICE DATA AND SPECIFICATIONS (SDS) [VQ35DE]
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VA LV E S E AT
Unit: mm (in)
*:Machining data Valve guide clearance
Intake 0.020 - 0.053 (0.0008 - 0.0021) 0.08 (0.0031)
Exhaust 0.040 - 0.073 (0.0016 - 0.0029) 0.01 (0.004)
Valve deflection Intake — 0.24 (0.0094)
Exhaust — 0.28 (0.0110)
Projection length (L) 12.6 - 12.8 (0.496 - 0.504)
Items Standard Oversize (S ervice) [0.5 (0.02)]
Cylinder head seat recess diameter (D) Intake (A) 38.000 - 38.016 (1.4961 - 1.4967) 38.500 - 38.516 (1.5157 - 1.5164)
Exhaust (B) 31.600 - 31.616 (1.2441 - 1.2447) 32.100 - 32.116 (1.2638 - 1.2644)
Valve seat outer diameter Intake 38.097 - 38.113 (1.4999 - 1.5005) 38.597 - 38.613 (1.5196 - 1.5202)
Exhaust 31.680 - 31.696 (1.2472 - 1.2479) 32.180 - 32.196 (1.2669 - 1.2676)
Valve seat interference fit Intake 0.081 - 0.113 (0.0032 - 0.0044)
Exhaust 0.064 - 0.096 (0.0025 - 0.0038)
Height (h) Intake (A) 5.9 - 6.0 (0.232 - 0.236) 5.05 - 5.15 (0.1988- 0.2028)
Exhaust (B) 5.9 - 6.0 (0.232 - 0.236) 4.95 - 5.05 (0.1949 - 0.1988)
Contacting width (W)* Intake (A) 1.0 - 1.4 (0.0394 - 0.0551)
Exhaust (B) 1.2 - 1.6 (0.0472 - 0.0630)
Cylinder head seat recess depth (H) 6.0 (0.236)
Depth (L) Intake (A) 41.16 - 41.76 (1.6205 - 1.6441)
Exhaust (B) 41.09 - 41.69 (1.6177 - 1.6413)
AWBIA0033GB
SEM621F
Revision: November 20132014 Altima NAM

SERVICE DATA AND SPECIFICATIONS (SDS)EM-255
< SERVICE DATA AND SPECIFICATIONS (SDS) [VQ35DE]
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1: Always check with the Parts Department for the latest parts information.
2: Total indicator reading
Main BearingINFOID:0000000009460592
MAIN BEARING
Unit: mm (in)
Main journal diameter. (Dm) grade Standard Grade
1Dimension
Grade No. A
Grade No. B
Grade No. C
Grade No. D
Grade No. E
Grade No. F
Grade No. G
Grade No. H
Grade No. J
Grade No. K
Grade No. L
Grade No. M
Grade No. N
Grade No. P
Grade No. R
Grade No. S
Grade No. T
Grade No. U
Grade No. V
Grade No. W
Grade No. X
Grade No. Y
Grade No. 4
Grade No. 7 59.975 - 59.974 (2.3612 - 2.3612)
59.974 - 59.973 (2.3612 - 2.3611)59.973 - 59.972 (2.3611 - 2.3611)
59.972 - 59.971 (2.3611 - 2.3611)
59.971 - 59.970 (2.3611 - 2.3610)
59.970 - 59.969 (2.3610 - 2.3610)
59.969 - 59.968 (2.3610 - 2.3609)
59.968 - 59.967 (2.3609 - 2.3609)
59.967 - 59.966 (2.3609 - 2.3609)
59.966 - 59.965 (2.3609 - 2.3608)
59.965 - 59.964 (2.3608 - 2.3608)
59.964 - 59.963 (2.3608 - 2.3607)
59.963 - 59.962 (2.3607 - 2.3607)
59.962 - 59.961 (2.3607 - 2.3607)
59.961 - 59.960 (2.3607 - 2.3606)
59.960 - 59.959 (2.3606 - 2.3606)
59.959 - 59.958 (2.3606 - 2.3605)
59.958 - 59.957 (2.3605 - 2.3605)
59.957 - 59.956 (2.3605 - 2.3605)
59.956 - 59.955 (2.3605 - 2.3604)
59.955 - 59.954 (2.3604 - 2.3604)
59.954 - 59.953 (2.3604 - 2.3603)
59.953 - 59.952 (2.3603 - 2.3603)
59.952 - 59.951 (2.3603 - 2.3603)
Pin journal diameter. (Dp) grade Standard Grade No. 0 51.968 - 51.974 (2.0460 - 2.0462)
Grade No. 1 51.962 - 51.968 (2.0457 - 2.0460)
Grade No. 2 51.956 - 51.962 (2.0445 - 2.0457)
Center distance (r) 40.66 - 40.74 (1.6008 - 1.6039)
Taper [Difference between (A) and (B)] LimitLess than 0.002 (0.0001)
Out-of-round [Difference between (X) and (Y)] Less than 0.002 (0.0001)
Crankshaft runout [TIR
2] Standard Less than 0.05 (0.0020)
Limit 0.10 (0.0039)
Crankshaft end play Standard 0.10 - 0.25 (0.0039 - 0.0098)
Limit 0.30 (0.0118)
Fillet role of crankshaft journal Standard More than 0.10 (0.0039)
Grade number* Thickness Width Identification color Remarks
PBIC2619E
Revision: November 20132014 Altima NAM