service NISSAN TEANA 2014 Service Manual

CYLINDER HEADEM-81
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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-98
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
• The connecting rod small end grade and piston pin hole (piston
pin) grade are provided only for the parts installed at the plant. For
service parts, no grades can be selected. Only 0 grade is avail-
able.
• Follow the "CONNECTING ROD BUSHING OIL CLEARA NCE (SMALL END)" procedure for the values for
each grade at the plant.
PISTON RING SIDE CLEARANCE
• Measure side clearance of piston ring and piston ring groove using
a feeler gauge. Refer to EM-111, "Standard and Limit"
.
• If out of specification, replac e piston and/or piston ring assembly.
PISTON RING END GAP
• Check if inner diameter of cylinder bore is within specification.
Follow the "PISTON TO CYLINDER BORE CLEARANCE" proce-
dure.
• Insert piston ring (2) to middle of cylinder (B) with piston (1), in the
direction shown (A), and meas ure gap using feeler gauge (C).
Refer to EM-111, "Standard and Limit"
.
• If out of specification, replace piston ring.
CONNECTING ROD BEND AND TORSION
(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
SEM024AA
PBIC3267J
Revision: November 20132014 Altima NAM

EM-100
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
• Measure outer diameter of piston pin using suitable tool (A). Refer
to EM-111, "Standard and Limit"
.
Piston Pin to Connecting Rod Bushing Clearance (Small End)
(Piston pin to connecting rod bushing clearance (small end)) = (Inner
diameter of connecting rod small end) – (Outer diameter of piston
pin)
• If the measured value exceeds the standard, replace the connect- ing rod assembly and/or piston and piston pin assembly.
• If replacing the piston and piston pin assembly, use the "Piston Selection Table" to select the piston corre-
sponding to the applicable bore grade of the cylinder block to be used. Refer to EM-105, "How to Select Pis-
ton and Bearing".
Factory Installed Parts Grading:
• Service parts apply only to grade 0 (B).
Unit: mm (in)
CYLINDER BLOCK DISTORTION
• Using a scraper, remove gasket on the cylinder block surf ace, and also remove oil, scale, carbon, or other
contamination.
CAUTION:
Be careful not to allow gasket debris to enter the oil or coolant passages.
PBIC3266J
Standard : 0.005 - 0.017 mm (0.0002 - 0.0007 in)
(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
Piston Pin Grade 0 1
Connecting rod small end
inner bushing diameter 2 0 . 0 0 0 - 2 0 . 0 0 6
(0.7874 - 0.7876) 20.006 - 20.012
(0.7876 - 0.7879)
Piston pin outer diameter 19.989 - 19.995
(0.7870 - 0.7872) 19.995 - 20. 001
(0.7872 - 0.7874)
Piston pin bore diameter 19.993 - 19.999
(0.7871- 0.7874) 19.999 - 20.005
(0.7874 - 0.7876)
(A) : Front mark
(B) : Piston pin bore grade
(C) : Piston grade I.D. stamp
(D) : Piston crown I.D. code stamp
(E) : ID mark
AWBIA1373ZZ
Revision: November 20132014 Altima NAM

HOW TO SELECT PISTON AND BEARINGEM-105
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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HOW TO SELECT PISTON AND BEARING
How to Select Piston and BearingINFOID:0000000009460512
DESCRIPTION
*For the service parts, the grade for fitting c
annot be selected between a piston pin and a connecting rod.
(Only 0 grade is available.) The information at the sh ipment from the plant is described as a reference.
• The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.
• For reused or repaired parts, measure the dimens ion accurately. Determine the grade by comparing the
measurement with the values of each selection table.
• For details of the measurement method of each part , the reuse standards, and the selection method of the
selective fitting parts, follow the applicable procedures.
HOW TO SELECT A PISTON
When New Cylinder Block is Used:
• Check the cylinder bore grade on rear left side of cylinder block, and select a piston of the same grade.
• If there is a corrected stamp mark on the cylinder block, use it as a correct reference.
Selection points Selection parts Selection items Selection methods
Between cylinder block to
crankshaft Main bearing
Main bearing grade (bearing
thickness) Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft to connect-
ing rod Connecting rod bearing
Connecting rod bearing grade
(bearing thickness) Combining service grades for
connecting rod big end inner di-
ameter and crankshaft pin outer
diameter determine connecting
rod bearing selection
Between cylinder block to pis-
ton Piston and piston pin assembly
(The piston is available together
with piston pin as an assembly) Piston grade (piston outer diam-
eter) Piston grade = cylinder bore
grade (inner diameter of bore)
*Between piston to connecting
rod ———
(A) : Front mark
(B) : Piston pin bore grade
(C) : Piston grade I.D. stamp
(D) : Piston crown I.D. code stamp
(E) : ID marks
AWBIA1373ZZ
SBIA0283E
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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-108
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
HOW TO SELECT PISTON AND BEARING
1. "Main Bearing Selection Table" rows correspond to bearing
housing grade on rear left side of cylinder block.
• If there is a corrected stamp ma rk on the cylinder block, use it
as a correct reference.
2. Apply journal diameter grade (A) stamped on crankshaft front side to column in "Main Bearing Selection Table".
3. Find value at crossing of row and column in "Main Bearing Selection Table". CAUTION:
• There are two main bearing selecti on tables. One is for odd-numbered journals (1, 3, and 5) and
the other is for even-numbered journals (2 and 4) . Make certain to use the appropriate table. This
is due to differences in the specified clearances.
4. Apply the symbol obtained to "Main Bearing Grade Table" to select. NOTE:
• Service parts are available as a set of both upper and lower.
When Cylinder Block and Crankshaft are Reused:
1. Measure inner diameter of cylinder block main bear ing housing and outer diameter of crankshaft journal.
2. Apply measurement in above step 1 to the "Main Bearing Selection Table".
3. Follow steps 3 and 4 in "When New Cylinder Block and Crankshaft are Used".
SBIA0283E
(B) : Pin diameter grade
AWBIA0017ZZ
Revision: November 20132014 Altima NAM

SERVICE DATA AND SPECIFICATIONS (SDS)EM-111
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000009460513
GENERAL SPECIFICATIONS
VA LV E T I M I N G
Unit: degree
*1: When running at idle with engine coolant temperature more than 60
°C (140 °F).
Cylinder arrangement
In-line 4
Displacement cm
3 (in3) 2,488 (151.82)
Bore and stroke mm (in) 89.0 x 100 (3.50 x 3.94)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings Compression 2
Oil 1
Compression ratio 10.0:1
Compression pressure
kPa (kg/cm
2, psi) / 250 rpm Standard 1410 (14.4, 204.5)
Minimum 1220 (12.4, 176.9)
Differential limit between cylinders 100 (1.0, 14)
Va l v e t i m i n g : Intake valve
: Exhaust valve
ab c de f
VTC Minimum phasing
(Mechanical)
*1224 244 5 69 3 41
VTC Maximum phasing
(Mechanical)
*2224 244 35 29 48 4
Intermediate lock phasing
(Mechanical)
*3224 244 5 59 3 41
ALBIA0875GBALBIA0876GB
ALBIA0877GB
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

SERVICE DATA AND SPECIFICATIONS (SDS)EM-113
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
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Valve Clearance
Unit: mm (in)
* Approximately 80
°C (176 °F)
Available Valve Lifter
Unit: mm (in)
Valve length (L) Intake 101.72 (4.0074)
Exhaust 102.78 (4.0464)
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 1.08 (0.0425)
Exhaust 1.38 (0.0543)
Cold Hot*
Intake 0.24 - 0.32 (0.009 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.26 - 0.34 (0.010 - 0.013) 0.308 - 0.432 (0.012 - 0.017)
Thickness Identification mark (Stamp)*
3.00 (0.1181) 300H
3.02 (0.1189) 302H
3.04 (0.1197) 304H
3.06 (0.1205) 306H
3.08 (0.1213) 308H
3.10 (0.1220) 310H
3.12 (0.1228) 312H
3.14 (0.1236) 314H
3.16 (0.1244) 316H
3.18 (0.1252) 318H
3.20 (0.1260) 320H
3.22 (0.1268) 322H
3.24 (0.1276) 324H
3.26 (0.1283) 326H
3.28 (0.1291) 328H
3.30 (0.1299) 330H
3.32 (0.1307) 332H
3.34 (0.1315) 334H
3.36 (0.1323) 336H
KBIA0119E
Revision: November 20132014 Altima NAM

EM-114
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: Always check with the Parts Department for the latest parts information.
Valve Spring
Valve Lifter
Unit: mm (in)
Valve Oil Seal
Unit: mm (in)
Valve Guide
3.38 (0.1331) 338H
3.40 (0.1339) 340H
3.42 (0.1346) 342H
3.44 (0.1354) 344H
3.46 (0.1362) 346H
3.48 (0.1370) 348H
3.50 (0.1378) 350H Thickness Identification mark (Stamp)*
KBIA0119E
Free height standard
mm (in) Intake 47.92 - 48.12 (1.8866 - 1.8945)
Exhaust 48.65 - 48.85 (1.9154 - 1.9232)
Installation height mm (in) Intake 36.96 (1.4551)
Exhaust 36.96 (1.4551)
Installation load N (kg - f, lb–f) Intake 151 - 175 (15.4 - 17.8, 34 - 39)
Exhaust 151 - 175 (15.4 - 17.8, 34 - 39)
Height during valve open mm (in) Intake 26.76 (1.0535)
Exhaust 28.46 (1.1205)
Load with valve open N (kg-f, lb-f) Intake 335 - 383 (34.2 - 39.1, 75.3 - 86.1)
Exhaust 300 - 342 (30.6 - 34.9, 67.4 - 76.9)
Identification color Intake White
Exhaust Light blue
Out-of-square mm (in) 1.0 (0.0394) 1.0 (0.0394)
Description Standard
Valve lifter outer diameter 33.977 - 33.987 (1.3377 - 1.3381)
Valve lifter bore inner diameter 34.000 - 34.021 (1.3386 - 1.3394)
Clearance between lifter and lifter guide 0.013 - 0.044 (0.0005 - 0.0017)
Description Standard
Valve oil seal installation height (A) 12.1 (0.476)
Revision: November 20132014 Altima NAM