2014 NISSAN TEANA engine

EM-92
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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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CYLINDER BLOCKEM-93
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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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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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CYLINDER BLOCKEM-95
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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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CYLINDER BLOCKEM-101
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• Measure the distortion on the block upper face at some different
points in 6 directions using a suitable tool (A).
• If out of the distortion limit, replace the cylinder block and lower block they are machined together as an assembly.
INNER DIAMETER OF MAIN BEARING HOUSING
• Install the main bearing caps with the main bearings removed andtighten the bolts to the specified torque. Refer to EM-88, "Disas-
sembly and Assembly".
• Using a bore gauge (A), measure the inner diameter of the main
bearing housing.
• If out of the standard, replace the cylinder block and lower cylinder block assembly.
NOTE:
These components cannot be replaced as a single unit because
they were processed together.
PISTON TO CYLINDER BORE CLEARANCE
Inner Diameter of Cylinder Bore
• Using a bore gauge, measure cylinder bore for wear, out-of-round and taper at 6 different points on each cylinder. (Y and X directions
at C, D, and E). The Y axis is in the longitudinal direction of the
engine.
NOTE:
When determining cylinder bore grade, measure cylinder bore at
(D) position. Refer to EM-111, "Standard and Limit"
.
• If there are scratches and/or seizure on t he cylinder inner wall, hone the inner wall.
Outer Diameter of Piston
• Measure piston skirt diameter using a suitable tool (A). Refer to
EM-111, "Standard and Limit"
.
• Measure point (distance from the top): 37.5 mm (1.476 in).
Piston to Cylinder Bore Clearance
Limit : 0.1 mm (0.004 in)
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Standard : 58.944 - 58.968 mm (2.3206 - 2.3216 in)
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Standard : Refer to EM-111, "Standard and Limit".
Out-of-round : Difference between (Y) and (X).
Taper : Difference between (C) and (E).
Dimension (f) : 10 mm (0.39 in)
Dimension (g) : 60 mm (2.36 in)
Dimension (h) : 120 mm (4.72 in)
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SERVICE DATA AND SPECIFICATIONS (SDS)EM-111
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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
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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
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PRECAUTIONSEM-123
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951676
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for Draining CoolantINFOID:0000000009460515
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000009460516
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000009460517
• When instructed to use special service tools, use the spec ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000009460518
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000009460519
• Use torque wrench to tighten bolts or nuts to specification.
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PRECAUTIONS
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel li nes with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage.
Parts Requiring Angular TighteningINFOID:0000000009460520
• Use an angle wrench for the final tightening of the following engine parts:
- Cylinder head bolts
- Main bearing cap bolts
- Connecting rod cap nuts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular
tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and coated with engine oil.
Precaution for Liquid GasketINFOID:0000000009460521
REMOVAL OF LIQUID GASKET
• After removing the bolts and nuts, separate the mating surface and remove the liquid gasket using Tool (A).
CAUTION:
Be careful not to damage the mating surfaces.
• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied. Use a
plastic hammer to slide (2) the cutter by tapping on the side.
CAUTION:
Do not damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the gasket application surface and the mating surface.
• Remove the liquid gasket completely from the groove of the
gasket application surface, mounting bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign
materials.
3. Attach the liquid gasket tube to the tube presser. Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-21, "Recommended Chemi cal Products and Sealants"
.
Tool Number: KV10111100 (J-37228)
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