2014 NISSAN TEANA check oil

EM-92
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
3. Install oil jets (A).
4. Install the main bearings and the thrust bearings.
a. Remove dust, dirt, and oil from the bearing mating surfaces of the cylinder block and lower cylinder block.
b. Install the thrust bearings (1) to both sides of the No. 3 main bearing journal (F) on the cylinder block.
• Install the thrust bearings with the oil groove (G) facing the
crankshaft arm (outside).
c. Install the main bearings paying attention to their position and direction.
• The main bearing with an oil hole and groove goes on the cyl- inder block side (A). The one without them goes on the lower
cylinder block side (B).
• Only the main bearing (on the cylinder block side) for No. 3 journal (6) has different specifications.
• Before installing the bearings, apply engine oil to the bearing
friction surface (inside). Do not apply oil to the back surface,
but thoroughly clean it.
• When installing, align the bearing stopper (1), (5) to the notch.
• Make sure that the oil holes on the cylinder block and those on the corresponding bearing (2), (4) are aligned.
5. Install the signal plate to the crankshaft.
a. Position the crankshaft and signal plate using a positioning dowel pin, and tighten the bolts to specification.
b. Remove the dowel pin. CAUTION:
Be sure to remove dowel pin before installing the crank-
shaft.
NOTE:
Dowel pins for the crankshaft and signal plate are supplied as a
set for each.
6. Install the crankshaft onto the cylinder block. • While turning the crankshaft by hand, check that it turnssmoothly.
: Engine front
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(A) : No. 1
(B) : No. 2
(C) : No. 3
(D) : No. 4
(E) : No. 5
: Engine front
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(3) : Bearing other than No. 3
(7) : Thrust bearings
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Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-93
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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7. Install the lower cylinder block.
• Apply Silicone RTV Sealant to positions as shown (A and B).
• Use Genuine Silicone RTV Sealant, or equivalent. Refer to GI-
21, "Recommended Chemical Products and Sealants".
CAUTION:
After the Silicone RTV Sealant is applied, the lower cylinder
block installation must be finished within 5 minutes.
NOTE:
Cylinder block and lower cylinder block are machined together. Replace only as a unit. Do not replace
separately.
8. Tighten lower cylinder block bolts in the numerical order as shown and according to the following steps:
a. Apply new engine oil to threads and seat surfaces of the bolts.
b. Tighten bolts to specification using suitable tool and Tool (A). CAUTION:
Check tightening angle. Do not judge angle by visual
inspection.
c. Wipe off completely any protruding Silicone RTV Sealant on rear oil seal installation surface and the exte- rior of engine.
d. Check crankshaft side clearance. Refer to EM-96, "Inspection After Disassembly"
.
e. After installing the bolts, make sure that the crankshaft can be rotated smoothly by hand.
9. Apply new engine oil to new rear oil seal and install it using a suitable tool. • Install new oil seal in the direction shown.Dimension (A) : 4 - 5 mm (0.157 - 0.197 in)
Dimension (B) : Apply to end
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KBIA0063E
Step 1, bolts 11 - 22 only : 25.1 N·m (2.6 kg-m, 19 ft-lb)
Step 2, bolts 1 - 10 only : 39.2 N·m (4.0 kg-m, 29 ft-lb)
Step 3, bolts 1 - 10 only : 60 °degrees rotation
Tool number (A) : KV10112100 (BT-8653-A)
(A) : Dust seal lip
(B) : Oil seal lip
: Drive plate side
: Engine front
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Revision: November 20132014 Altima NAM

EM-94
< UNIT DISASSEMBLY AND ASSEMBLY >[QR25DE]
CYLINDER BLOCK
• Press fit new oil seal straight using a suitable tool (A) to avoid
tilting the seal or causing burrs.
• Press in the new rear oil seal (1) to the position (b) shown.
10. Install the piston to the connecting rod. Assemb le the components in their original positions.
a. Using a snap ring pliers, install the snap ring to the grooves of the piston's rear side.
• Insert the piston pin snap ring fully into groove.
CAUTION:
Do not reuse snap rings.
b. Install the piston to the connecting rod. • Using a heat gun, heat the piston [approximately 60 ° - 70 C ° (140 ° - 158 °F)] until the piston pin can be
pushed in by hand without excessive force. From the front to the rear, insert the piston pin into the piston
and the connecting rod.
• Assemble so that the front mark on the piston crown (A) and the oil holes (B) and the cylinder No. (C) on the connecting rod
are positioned as shown.
c. Install the piston pin snap ring (1 ) into the front of the piston.
• Check that the connecting rod moves smoothly.
11. Using a piston ring expander, install the piston rings. Assemble the components in their original positions.
CAUTION:
Be careful not to damage the piston.
• Position each ring with the gap as shown, referencing the pis-
ton front mark as the starting point.
NOTE:
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(b) : 0 - 0.5 mm (0 - 0.020 in)
(A) : Rear surface of cylinder block
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(A) : Top ring mating
(B) : Front mark
(C) : Second ring mating, oil ring, spacer mating
(D) : Oil ring upper or lower rail gap
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Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-95
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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The gap of the upper rail on the oil ring shall face
the direction opposite to that of the lower rail.
• Install the top ring and the second ring with the stamped surface (E) facing upward.
12. Install the connecting rod bearings to the connecting rod and the connecting rod cap. Assemble the components in their original
positions.
• When installing the connecting rod bearings, apply engine oil
to the bearing friction surface (inside). Do not apply oil to the
back surface, but thoroughly clean the back.
• When installing, align the connecting rod bearing stopper pro- trusion (A) with the notch (B) of the connecting rod to install.
• Check the oil holes on the connecting rod and those on the corresponding bearing are aligned.
13. Install the piston and connecting rod assembly using Tool. Assemble the components in their original positions.
• Rotate the crankshaft so the pin corresponding to the connect- ing rod to be installed is at the bottom dead center position.
• Apply engine oil sufficiently to the cylinder bore, piston, and crankshaft pin.
• Match the cylinder position number with the cylinder No. on
the connecting rod for installation.
• Install the piston with the front mark on the piston crown facing the front of the engine using Tool.
CAUTION:
Be careful not to damage the crankshaft pin, resu lting from an interference of the connecting rod
big end.
14. Install the connecting rod caps. Assemble the components in their original positions.
• Match the stamped cylinder number marks (F) on the connect- ing rod with those on the cap to install.
15. Tighten the connecting rod bolts using Tool (A) as follows:
Apply engine oil to the threads and seats of the connecting rod
bolts.
CAUTION:
Check tightening angle. Do not judge angle by visual
inspection. Stamped mark : 2K (second ring)
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Tool number : EM03470000 (J-8037)
(A) : Oil splash
(B) : Small end diameter grade
(C) : Reference code
(D) : Bearing stopper groove
(E) : Reference code
(G) : Big end diameter grade
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Step 1 : 29.4 N·m (3.0 kg-m, 22 ft-lb)
Step 2 : 0 N·m
Step 3 : 19.6 N·m (2.0 kg-m, 14 lb-ft)
Step 4 : Rotate bolts 90 ° + 0.5 °
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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
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SEM024AA
PBIC3267J
Revision: November 20132014 Altima NAM

CYLINDER BLOCKEM-99
< UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE]
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• Check with connecting rod aligner. Refer to
EM-111, "Standard and
Limit".
• If it exceeds the limit, replace connecting rod assembly.
CONNECTING ROD BEARING (BIG END)
• Install the connecting rod cap (1) without the connecting rod bear-
ing installed. After tightening the connecting rod bolt to the speci-
fied torque, measure the connecting rod big end inner diameter
using an inside micrometer. Refer to EM-111, "Standard and Limit"
.
CONNECTING ROD BUSHING OIL CLEARANCE (SMALL END)
Inner Diameter of Connecting Rod (Small End)
• Measure inner diameter of bushing using suitable tool (A). Refer to
EM-111, "Standard and Limit"
Outer Diameter of Piston Pin
PBIC3268J
(A) : Example
(B) : Measuring direction of inner diameter
(2) : Connecting rod
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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

EM-118
< SERVICE DATA AND SPECIFICATIONS (SDS) [QR25DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Piston Ring
Unit: mm (in)
Piston Pin
Unit: mm (in)
CONNECTING ROD
Unit: mm (in)
Piston skirt diameter (A) StandardGrade* Dimension
Grade No. 2 88.990 - 89.000 (3.5035 - 3.5039)
Grade No. 3 89.000 - 89.010 (3.5039 - 3.5043)
(H) dimension 37.5 (1.476)
Piston pin bore diameter Grade No. 0 19.993 - 19.999 (0.7871 - 0.7874)
Grade No. 1 19.999 - 20.005 (0.7874 - 0.7876)
Piston clearance to cylinder block Standard 0.010 - 0.030 (0.0004 - 0.0012)
Limit 0.08 (0.0031)
PBIC0188E
Standard Limit
Side clearance Top 0.040 - 0.080 (0.0016 - 0.0031) 0.11 (0.0043)
2nd 0.030 - 0.070 (0.0012 - 0.0028) 0.10 (0.0039)
Oil ring 0.045 - 0.125 (0.0018 - 0.0049) —
End gap Top 0.21 - 0.31 (0.0083 - 0.0122) 0.53 (0.0209)
2nd 0.37 - 052 (0.0146 - 0.0205) 0.71 (0.0280)
Oil (rail ring) 0.20 - 0.45 (0.0079 - 0.0177) 0.80 (0.0315)
Piston pin outer diameter Grade No.0 19.989 - 19.995 (0.7870 - 0.7872)
Grade No.1 19.995 - 20.001 (0.7872 - 0.7874)
Piston to piston pin clearance (Standard) 0.002 - 0.006 (0.0001 - 0.0002)
Piston pin to connecting rod bushing clear-
ance Standard 0.005 - 0.017 (0.0002 - 0.0007)
Center distance 143.00 - 143.10 (5.63 - 5.63)
Bend [per 100 (3.94)] Limit 0.15 (0.0059)
Torsion [per 100 (3.94)] Limit 0.30 (0.0118)
Connecting rod small end inner diameter 22.000 - 22.012 (0.7874 - 0.7879)
Connecting rod small end inner
bushing diameter
1
Grade2Dimension
Grade No. 0 20.000 - 20.006 (0.7874 - 0.7876)
Grade No. 1 20.006 - 20.012 (0.7876 - 0.7879)
Connecting rod big end inner diameter 48.000 - 48.013 (1.8898 - 1.8903)
Revision: November 20132014 Altima NAM