2014 NISSAN TEANA dimensions

CYLINDER HEADEM-81
< REMOVAL AND INSTALLATION > [QR25DE]
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After confirming that the dimensions of valve guides and valves are
within specifications, perform this procedure:
• Apply prussian blue (or white lead) onto contacting surface of valve
seat to check the condition of t he valve contact on the seat sur-
face.
• Check if the contact area band is continuous all around the circum-
ference.
• If not, grind to adjust valve fitti ng and check again. If the contacting
surface still has NG conditions even after the re-check, replace the
valve seat.
VALVE SEAT REPLACEMENT
NOTE:
When valve seat is removed, replace with an oversized [0.5 mm (0.020 in)] valve seat.
1. Bore out old seat until it collapses. Boring shoul d not continue beyond the bottom face of the seat recess
in the cylinder head. Set the machine depth stop to ensure this.
2. Ream cylinder head recess diameter for service valve seat.
• Be sure to ream in circles concentric to the valve guide center.This will enable the valve seat to fit correctly.
3. Heat cylinder head to 110 ° to 130 °C (230 ° to 266 °F) by soaking
in heated oil.
WARNING:
Cylinder head contains heat . When working, wear protec-
tive equipment to avo id getting burned.
4. Use valve seats cooled well with dry ice. Force fit valve seat into cylinder head. CAUTION:
Avoid directly touching the cold valve seats.
5. Finish the seat to the specified dimensions using suitable tool. Refer to EM-111, "Standard and Limit"
.
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cu t in a single drive. Improper
pressure on the cutter or cutting many different times may
result in a defective valve seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact.
SBIA0322E
Intake : 37.000 - 37.016 mm (1.4567 - 1.4573 in)
Exhaust : 32.000 - 32.016 mm (1.2598 - 1.2605 in)
SEM795A
SEM008A
SEM934C
Revision: November 20132014 Altima NAM

EM-82
< REMOVAL AND INSTALLATION >[QR25DE]
CYLINDER HEAD
VALVE SPRING SQUARENESS
Set try square (A) along the side of the valve spring and rotate the
spring. Measure the maximum clearance between the top face of the
spring and the try square.
CAUTION:
Do not remove the valve spring seat from the valve spring
NOTE:
If the valve spring exceeds the limi t, replace the valve spring with the
valve spring seat.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Check valve spring pressure with valve spring seat installed at spec-
ified spring height. Replace if not within specifications.
CAUTION:
Do not remove the valve spring seat.
(B) : Contact
Limit : Refer to EM-111, "Standard and Limit".
JPBIA4391ZZ
Standard : Refer to EM-111, "Standard and Limit".
SEM113
Revision: November 20132014 Altima NAM

EM-102
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
• Calculate by outer diameter of piston skirt and i
nner diameter of cylinder (direction X, position B).
(Clearance) = (Inner diameter of cylinde r) – (Outer diameter of piston skirt).
• If it exceeds the limit, replace piston/piston pin assembly.
Reboring Cylinder Bore
1. Cylinder bore size is determined by adding pi ston-to-bore clearance to piston diameter (A).
2. Install lower cylinder block, and tighten to the specif ied torque. Otherwise, cylinder bores may be distorted
in final assembly.
3. Cut cylinder bores.
• When any cylinder needs boring, all ot her cylinders must also be bored.
• Do not cut too much out of cylinder bore at a time . Cut only 0.05 mm (0.0020 in) or so in diameter at
a time.
4. Hone cylinders to obtain specified piston-to-bore clearance.
5. Measure finished cylinder bore for out-of-round and taper.
• Measurement should be done af ter cylinder bore cools down.
OUTER DIAMETER OF CRANKSHAFT JOURNAL
• Measure outer diameter of crankshaft journals using suitable tool
(A).
OUTER DIAMETER OF CRANKSHAFT PIN
• Measure outer diameter of crankshaft pin using a suitable tool.
OUT-OF-ROUND AND TAPER OF CRANKSHAFT
• Measure the dimensions at four different points as shown on eachjournal and pin using a micrometer.
• Out-of-round is indicated by the difference in dimensions between
(X) and (Y) at (A) and (B).
• Taper is indicated by the difference in dimension between (A) and (B) at (X) and (Y). Standard : 0.010 - 0.030 mm (0.0004 - 0.0012 in)
Limit : 0.08 mm (0.0031 in)
Rebored size calculation: D = A + B - C
(D): Bored diameter
(A): Piston diameter as measured
(B): Piston-to-bore clearance (standard value)
(C): Honing allowance 0.02 mm (0.0008 in)
Standard : 54.955 - 54.979 mm (2.1636 - 2.1645 in)
AWBIA1331GB
Standard : 44.956 - 44.974 mm (1.7699 - 1.7706 in)
Standard
Out-of-round (X - Y) : 0.005 mm (0.0002 in)
Taper (A - B) : 0.005 mm (0.0002 in)
AWBIA1368ZZ
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-106
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
HOW TO SELECT PISTON AND BEARING
When a Cylinder Block is Reused:
1. Measure the cylinder block bore inner diameter.
2. Determine the bore grade by comparing the measur ement with the values under the cylinder bore inner
diameter of the "Piston Selection Tabl e". Select the piston of the same grade.
Piston Selection Table
• For the piston selection table, refer to EM-111, "Standard and Limit".
NOTE:
• The piston is available together with piston pin as an assembly.
• The piston pin (piston pin bore) grade is provided only for the parts installed at the plant. For service parts, no grades can be selected. Only 0 grade is available.
HOW TO SELECT A CONNECTING ROD BEARING
When New Connecting Rod and Crankshaft are Used:
1. Apply big end inside diameter grade stamped on connecting rod side face to the row in the "Connecting Rod Bearing Selection
Table".
2. Apply pin diameter grade (B) stamped on crankshaft front side to the column in the "Connecting Rod Bearing Selection Table".
• Journal diameter grade (A)
3. Read the symbol at the cross point of selected row and column in the "Connecting Rod Bearing Selection Table".
4. Apply the symbol obtained to connecting rod bearing grade table to select.
When Crankshaft and Connecting Rod are Reused:
1. Measure dimensions of the big end inner diameter of connecting rod and outer diameter of crankshaft pin
individually.
2. Apply the dimension measured to the "Connec ting Rod Bearing Selection Table" below.
(A) : Oil splash
(B) : Small end diameter grade
(C) : Reference code
(D) : Bearing stopper groove
(E) : Reference code
(F) : Cylinder No.
(G) : Big end diameter grade
AWBIA1279GB
AWBIA0017ZZ
Revision: November 20132014 Altima NAM

EM-112
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*2: When the intake or exhaust valve opening angle is at the maximum.
*3: When starting the engine with engine coolant temperature 60
°C (140 °F) or less.
DRIVE BELTS
EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
CYLINDER HEAD
Unit: mm (in)
VA LV E
Valve Dimensions
Unit: mm (in)
Tension of drive belts Auto adjustment by drive belt auto-tensioner
Surface distortion Description Limit
Exhaust manifold 0.3 (0.012)
Make DENSO
Type* Standard FXE20HE11C
Gap (nominal) 1.1 (0.043)
Description Limit
Head surface distortion 0.1 (0.004)
Description Standard
Spark plug tube installation height 41.7 (1.642)
PBIC0283E
Valve head diameter (D) Intake 35.5 - 35.8 (1.398 - 1.409)
Exhaust 30.3 - 30.6 (1.193 - 1.205)
SEM188
Revision: November 20132014 Altima NAM

EM -128
< PREPARATION >[VQ35DE]
PREPARATION
Tool name
Description
Power tool Loosening nuts, screws and bolts
Pulley holder Removing and installing crankshaft pulley
(Holding crankshaft pulley)
a: 68 mm (2.68 in) dia.
b: 8 mm (0.31 in) dia.
Spark plug wrench Removing and installing spark plug
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
Valve guide drift Removing and installing valve guide Intake & Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
Valve guide reamer Reaming valve guide 1 or hole for oversize valve guide 2
Intake & Exhaust:
d
1: 6.0 mm (0.236 in) dia.
d
2: 10.2 mm (0.402 in) dia.
PIIB1407E
NT628
PBIC2982E
NT048
NT030
NT015
NT016
Revision: November 20132014 Altima NAM

EM-214
< REMOVAL AND INSTALLATION >[VQ35DE]
CYLINDER HEAD
1. To remove valve guide, heat cylinder head to 110
° to 130 °C
(230 ° to 266 °F) by soaking in heated oil.
WARNING:
Cylinder head contains heat. When working, wear protective
equipment to avoid getting burned.
2. Drive out the valve guide with a press [under a 20 kN (2.2 US ton) pressure] or hammer and suitable tool.
3. Ream cylinder head valve guide hole.
4. Heat cylinder head to 110 ° to 130 °C (230 ° to 266 °F) by soaking
in heated oil and press new valve guide from camshaft side into
the cylinder head to the dimensions as shown.
WARNING:
Cylinder head contains heat . When working, wear protec-
tive equipment to avo id getting burned.
SEM008A
SEM931C
Valve guide hole diameter
(for service parts), intake
and exhaust : 10.175 - 10.196 mm
(0.4006 - 0.4014 in)
SEM932C
Projection (L) : 12.6 - 12.8 mm (0.496 - 0.504 in)
SEM950E
Revision: November 20132014 Altima NAM