Pressure NISSAN TEANA 2014 Service Manual

EM-142
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COMPRESSION PRESSURE
COMPRESSION PRESSURE
On-Vehicle ServiceINFOID:0000000009460536
CHECKING COMPRESSION PRESSURE
1. Run the engine until it reaches normal operating temperature.
2. Turn the ignition switch to OFF.
3. Release fuel pressure and leave t he fuel pump electrically disconnected.
Refer to EC-687, "Work Procedure"
.
4. Remove all six spark plugs. Refer to EM-132, "Removal and Installation"
.
5. Install the compression tester with the adapter into the spark plug hole. • Use compression tester whose end (a) (rubber portion) is
smaller than 20 mm (0.79 in) in diameter. Otherwise, it may be
caught by cylinder head during removal.
6. Depress accelerator pedal fully to keep the electric throttle control actuator butterfly-valve wide open to
maximize air intake flow.
7. Crank the engine and record the highest gauge indication.
8. Repeat the measurement on each cylinder (steps 5 - 7). NOTE:
Always use a fully charged battery to obtain specified engine speed.
Unit: kPa (kg/cm2, psi)/rpm
9. If compression in one or more cylinders is low:
a. Pour a small amount of engine oil into cylinders through the spark plug holes.
b. Retest compression (steps 5 - 8).
• If adding oil helps raise compression pressure, then the piston rings may be worn or damaged. If so, replace piston rings after checking piston.
• If the pressure stays low, a valve may be sticking or is seating improperly. Inspect and repair the valve and/
or valve seat. Refer to EM-212, "Inspection After Disassembly"
. If the valve and/or valve seat is damaged
replace as necessary.
• If compression stays low in two or more cylinders that are next to each other:
- The cylinder head gasket may be leaking.
- Both cylinders may have valve component damage. Inspect and repair as necessary.
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Standard Minimum Difference limit between cylinders
1,275 (13.0, 185)/300 981 (10.0, 142)/300 98 (1.0, 14)/300
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INTAKE MANIFOLDEM-149
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INTAKE MANIFOLD
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Removal and InstallationINFOID:0000000009460544
REMOVAL
WARNING:
To avoid the danger of being scalded, do no t drain the coolant when the engine is hot.
1. Release the fuel pressure. Refer to EC-687, "Work Procedure"
.
2. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)"
.
3. Remove intake manifold collector. Refer to EM-146, "Removal and Installation"
.
4. Disconnect fuel tube quick connector (1) at fuel tube (3) side. Refer to EM-163, "Removal and Installation"
.
5. Remove fuel injector and fuel tube. Refer to EM-163, "Removal and Installation"
.
1. Intake manifold 2. Intake manifold gaskets A. Refer to INSTALLATION
Engine front
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(2) : Quick connector release
(A) : Holding position
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EM-150
< REMOVAL AND INSTALLATION >[VQ35DE]
INTAKE MANIFOLD
6. Loosen the bolts in the order as shown, and remove the intake
manifold.
INSPECTION AFTER REMOVAL
Surface Distortion
• Using straightedge and feeler gauge, inspect the surface distortion of the intake manifold. Refer to EM-146, "Removal and Installa-
tion".
INSTALLATION
Installation is in the reverse order of removal. Fo llow the procedure below for specific tightening sequences
and procedures.
CAUTION:
Do not reuse intake manifold gaskets.
• Install intake manifold nuts and bolts in two steps in the numerical order as shown.
NOTE:
After installation, it is necessary to re-calibrate the electric throttle control actuator as follows:
1. Perform the "Throttle Valve Closed Position Learning" when harness connector of the electric throttle con-
trol actuator is disconnected. Refer to EC-682, "Work Procedure"
.
2. Perform the "Idle Air Volume Learning" when the electric throttle control actuator is replaced. Refer to EC-
683, "Work Procedure".
3. Install the quick connector. Refer to EM-163, "Removal and Installation"
.
INSPECTION AFTER INSTALLATION
Make sure there are no fuel leaks at the connections as follows:
1. Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections. WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
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Standard : 0.1 mm (0.004 in)
WBIA0052E
Step 1 : 7.3 N·m (0.74 kg-m, 65 in-lb)
Step 2 : 25.5 N·m (2.6 kg-m, 19 ft-lb)
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EM-156
< REMOVAL AND INSTALLATION >[VQ35DE]
OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
Exploded ViewINFOID:0000000009460548
Removal and Installation (Lower Oil Pan)INFOID:0000000009460549
REMOVAL
WARNING:
• Do not remove the oil pan until the exhaust system and cooling system have completely cooled off.
1. Drain the engine oil. Refer to LU-26, "Changing Engine Oil"
.
2. Loosen the lower oil pan bolts in the reverse order as shown using power tool.
3. Remove the lower oil pan.
1. Oil pan baffle 2. O-ring 3. Gasket
4. Oil pressure switch 5. Oil cooler O-ring 6. Oil cooler
7. Oil cooler connection 8. Oil filter 9. Lower oil pan
10. Oil strainer 11. Rear plate cover 12. Crankshaft position sensor (POS)
13. O-ring 14. Upper oil pan
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EM-158
< REMOVAL AND INSTALLATION >[VQ35DE]
OIL PAN AND OIL STRAINER
1. Remove the engine from the vehicle. Refer to
EM-220, "Removal and Installation".
2. Drain the engine oil. Refer to LU-26, "Changing Engine Oil"
.
3. Remove the oil level gauge guide.
4. Remove the drive belt. Refer to EM-134, "Removal and Installation"
.
5. Disconnect the A/C compressor harness connector.
6. Remove the A/C compressor bolts and remove the A/C compressor. Refer to HA-30, "COMPRESSOR :
Removal and Installation".
7. Remove coolant pipe bolts. Refer to CO-51, "Removal and Installation"
.
8. Disconnect the coolant lines from the engine oil cooler.
9. Remove the oil filter and engine oil cooler from the upper oil pan.
10. Remove the oil pressure switch, and the cranks haft position sensor (POS) from the upper oil pan.
11. Remove the lower oil pan. Refer to EM-156, "Removal and Installation (Lower Oil Pan)"
.
12. Remove the upper oil pan.
a. Loosen the bolts in the order as shown, using power tool.
b. Insert an appropriate size tool into the notch (1) of the upper oil pan as shown.
c. Pry off the upper oil pan by moving the tool up and down (2) as shown.
13. Remove the O-ring seals from the bottom of the cylinder block and oil pump housing. Use new O-rings for installation.
CAUTION:
Do not reuse O-rings.
LBIA0358E
SEM155F
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EM-160
< REMOVAL AND INSTALLATION >[VQ35DE]
OIL PAN AND OIL STRAINER
4. Apply a bead of sealant to the cylinder block mating surface of
the upper oil pan to a limited portion as shown.
• Use Genuine Silicone RTV Sealant, or equivalent. Refer to GI-
21, "Recommended Chemical Products and Sealants".
• Be sure the sealant is applied to a limited portion as shown, and the sealant is 4.5 - 5.5 mm (0.177 - 0.217 in) wide.
• Attaching should be done within 5 minutes after coating.
CAUTION:
The components must be instal led within 5 minutes of the
liquid gasket applicat ion. Then allow 30 minutes for the liq-
uid gasket to set before operating the engine.
5. Install new O-rings on the cylinder block and oil pump body. CAUTION:
Do not reuse O-rings.
6. Install the upper oil pan. • Tighten upper oil pan bolts in the order as shown.
• Wait at least 30 minutes before refilling the engine with oil.
7. Install the lower oil pan. Refer to EM-156, "Removal and Installation (Lower Oil Pan)"
.
8. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "FOR USA AND CANADA : Fluids and Lubricants"
.
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
• Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
:Engine front
:Cut here
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SEM159F
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OIL PAN AND OIL STRAINEREM-161
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• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner dr ops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leak age of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-
ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Transmission/
transaxle fluid A/T and CVT Models Leakage Level/Leakage Leakage
M/T Models Level/Leakage Leakage Level/Leakage
Other oils and fluids* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gas — Leakage —
Revision: November 20132014 Altima NAM

FUEL INJECTOR AND FUEL TUBEEM-163
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FUEL INJECTOR AND FUEL TUBE
Exploded ViewINFOID:0000000009460554
CAUTION:
• Apply new engine oil when installi ng the parts as specified to do so.
• Do not remove or disassemble part s unless instructed as shown.
Removal and InstallationINFOID:0000000009460555
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventila ted area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
• To avoid the danger of being scalded, do no t drain engine coolant when engine is hot.
1. Remove engine room cover. Refer to EM-143, "Removal and Installation"
.
2. Release the fuel pressure. Refer to EC-687, "Work Procedure"
.
3. Disconnect the battery negative terminal. Refer to PG-73, "Removal and Installation (Battery)"
.
4. Remove front wiper arm and cowl top extension. Refer to EXT-24, "Removal and Installation"
.
5. Remove strut tower bar. Refer to FSU-19, "Exploded View"
.
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1. Fuel feed hose 2. Quick connector cap 3. Fuel tube
4. O-ring 5. Fuel damper 6. Fuel damper cap
7. Clip 8. O-ring (black) 9. Fuel injector
10. O-ring (green) A. Refer to INSTALLATION
Revision: November 20132014 Altima NAM

FUEL INJECTOR AND FUEL TUBEEM-165
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10. Loosen bolts in reverse order as shown, and remove fuel tube
and fuel injector assembly.
CAUTION:
Do not tilt fuel tube, or remain ing fuel in pipes may flow out
from pipes.
11. Remove fuel injector from fuel tube as follows:
a. Open and remove clip (1).
b. Remove fuel injector (2) from fuel tube (5) by pulling straight. CAUTION:
• Do not reuse O-rings.
• Be careful with remaining fuel that may go out from fuel
tube.
• Be careful not to damage in jector nozzle during removal.
• Do not bump or drop fuel injector.
• Do not disassemble fuel injector.
12. Remove fuel damper from fuel tube, (if necessary).
INSTALLATION
1. Install fuel damper as follows:
a. Install new O-ring (2) to fuel tube (1) as shown. When handling new O-ring, be careful of the following:
CAUTION:
• Do not reuse O-ring.
• Handle O-ring with bare hands. Do not wear gloves.
• Lubricate O-ring with new engine oil.
• Do not clean O-ring with solvent.
• Check that O-ring and its mating part are free of foreign material.
• When installing O-ring, be car eful not to scratch it with
tool or fingernails. Also be careful not to twist or stretch
O-ring. If O-ring was stretched while it was being
attached, do not insert it quickly into fuel tube.
• Insert new O-ring straight into fuel tube. Do not twist it.
b. Install spacer (3) to fuel damper (4).
c. Insert fuel damper straight into fuel tube. CAUTION:
• Insert straight, checking that the axis is lined up.
• Do not pressure-fit with excessive force.
• Insert fuel damper until (B) is touching (A) of fuel tube.
d. Tighten bolts evenly in turn. • After tightening bolts, check that there is no gap between fuel damper cap (5) and fuel tube.
2. Install new O-rings to fuel injector paying attention to the following. CAUTION:
: Engine front
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(3) : O-ring (green)
(4) : O-ring (black)
(A) : Installed condition
(B) : Clip groove
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Reference value : 130 N (13.3 kg, 29.2 lb)
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FUEL INJECTOR AND FUEL TUBEEM-167
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b. Thinly apply new engine oil around fuel tube from tip end to spool end.
c. Align center to insert quick connector straightly into fuel tube. • Insert quick connector (1) to fuel tube until top spool (2) is
completely inside quick connector, and 2nd level spool (3)
exposes right below quick connector.
CAUTION:
• Do not reuse O-ring.
• Hold (A) position as shown when inserting fuel tube into quick connector.
• Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.
• Insert until you hear a “click” sound and actually feel the engagement.
• To avoid misidentification of enga gement with a similar sound, be sure to perform the next step.
d. Pull quick connector by hand holding position. Check it is completely engaged (connected) so that it does
not come out from fuel tube.
e. Install quick connector cap (3) to quick connector.
• Install quick connector cap with arrow (A) on surface facing indirection of quick connector (fuel feed hose side).
CAUTION:
If quick connector cap cannot be installed smoothly, quick
connector may have not been installed correctly. Check
connection again.
f. Secure fuel feed hose to clamp of quick connector cap.
8. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Make sure there is no fuel leakage at connections as follows:
1. Apply fuel pressure to fuel lines by turning i gnition switch ON (with engine stopped). Then check for fuel
leaks at connections.
2. Start the engine and rev it up and check for fuel leaks at connections. WARNING:
Do not touch engine immediately after stopping as engine is extremely hot.
NOTE:
Use mirrors for checking on connections out of the direct line of sight.
• Perform procedures for “Throttle Valve Closed Position Learning” after finishing repairs. Refer to EC-
682, "Work Procedure".
• If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after
finishing repairs. Refer to EC-683, "Work Procedure"
.
(B) : Installed condition
: Upright insertion
(1) : Fuel feed hose
(2) : Fuel tube
(B) : Upper view
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Revision: November 20132014 Altima NAM