2003 NISSAN TEANA Service Manual

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Page 2329 of 3502

NISSAN TEANA 2003 Service Manual CYLINDER HEAD
EM-221
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3. Heat cylinder head to 110 to 130°C (230 to 266°F) by soaking in
heated oil.
4. Provide valve seat cooled well with dry ice. press-fit valve s

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NISSAN TEANA 2003 Service Manual EM-222
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CYLINDER HEAD

Standard:
*: Exhaust side valve spring for VQ23DE has a parallel setting.
If the installation load or load with valve open is out of the standard, replace valve spring.
En

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NISSAN TEANA 2003 Service Manual ENGINE ASSEMBLY
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ENGINE ASSEMBLYPFP:10001
Removal and InstallationBBS004WA
Refer to GI-10, "Components" for symbol marks in the figure.
WARNING:
Situate vehic

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NISSAN TEANA 2003 Service Manual EM-224
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ENGINE ASSEMBLY

Do not start working until exhaust system and engine coolant are cool enough.
If items or work required are not covered by the engine section, refer to the applicable s

EM-224
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ENGINE ASSEMBLY

Do not start working until exhaust system and engine coolant are cool enough.
If items or work required are not covered by the engine section, refer to the applicable sections.
Always use the support point specified for lifting.
Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for
unavoidable reasons, support at the rear axle jacking point with transmission jack or similar tool
before starting work, in preparation for the backward shift of center of gravity.
For supporting points for lifting and jacking point at rear axle, refer to GI-37, "Garage Jack and
Safety Stand and 2-Pole Lift" .
REMOVAL
Outline
At first, remove engine and transaxle assembly with front suspension member from vehicle downward. Sepa-
rate front suspension member, and then separate engine from transaxle.
Preparation
1. Release fuel pressure. Refer to EC-392, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-34, "
Changing Engine Coolant" .
CAUTION:
Perform this step when engine is cold.
Do not spill engine coolant on drive belts.
3. Remove the following parts:
Engine cover; Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
Hood assembly; Refer to BL-13, "HOOD" .
Front road wheels and tires.
Undercover and splash guards (RH and LH).
Air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to EM-
131, "AIR CLEANER AND AIR DUCT" .
Battery, battery tray and battery tray bracket; Refer to SC-4, "BATTERY" .
Drive belts; Refer to EM-128, "DRIVE BELTS" .
Radiator, reservoir of radiator; Refer to CO-37, "RADIATOR" .
Front wiper arm; Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .
Cowl top cover. Refer to EI-21, "COWL TOP" .
4. Disconnect engine room harness at the ECM side.
CAUTION:
To keep clean harness connector and avoid damage and foreign materials, cover them completely
with plastic bags or something similar.
Engine Room
1. Disconnect heater hoses. Refer to CO-52, "WATER OUTLET AND WATER PIPING" .
Install plug to avoid leakage of engine coolant.
2. Remove EVAP hose. Refer to EM-133, "
INTAKE MANIFOLD COLLECTOR" .
3. Disconnect fuel feed hose (with fuel damper) quick connector at centralized under-floor piping side. Refer
to EM-155, "
FUEL INJECTOR AND FUEL TUBE" .
Install plug to avoid leakage of fuel.
4. Disconnect shift control cable at transaxle side. Refer to AT- 2 1 3 , "
SHIFT CONTROL SYSTEM" .
5. Disconnect brake booster vacuum hose at engine side. Refer to EM-133, "
INTAKE MANIFOLD COLLEC-
TOR" .
6. Remove IPDM E/R mounting bolt and IPDM E/R bracket mounting bolts, and move it to aside. Refer to
PG-17, "
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)" .
7. Remove alternator. Refer to SC-27, "
CHARGING SYSTEM" .
8. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to ATC-133,
"Components" .
9. Disconnect suction hoses of power steering oil pump at reservoir tank side.
Install plug to avoid leakage of power steering fluid.

Page 2333 of 3502

NISSAN TEANA 2003 Service Manual ENGINE ASSEMBLY
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Vehicle Underbody
1. Remove front drive shafts (right and left sides). Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove front exhaust tube. Refer

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NISSAN TEANA 2003 Service Manual EM-226
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ENGINE ASSEMBLY

6. Remove front suspension member mounting nuts and bolts. Refer to FSU-5, "FRONT SUSPENSION
ASSEMBLY" .
7. Carefully lower engine, transaxle and front suspension member

EM-226
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ENGINE ASSEMBLY

6. Remove front suspension member mounting nuts and bolts. Refer to FSU-5, "FRONT SUSPENSION
ASSEMBLY" .
7. Carefully lower engine, transaxle and front suspension member assembly. When performing work,
observe the following caution.
CAUTION:
Confirm there is no interference with vehicle.
Make sure that all connection points have been disconnected.
Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support vehicle
at rear jacking point(s) to prevent it from falling it off the lift.
Separation Work
1. Remove power steering oil pump, power steering piping and power steering bracket from engine and tran-
saxle assembly. Refer to PS-39, "
HYDRAULIC LINE" .
2. Remove starter motor. Refer to SC-14, "
STARTING SYSTEM" .
3. Disconnect harness connector of engine mounting insulators (front and rear).
4. Remove engine mounting (front) and engine mounting (rear) through-bolts.
5. Lift with hoist and separate engine and transaxle assembly from front suspension member.
CAUTION:
Before and during this lifting, always make sure that any harnesses are not connected.
6. Remove each engine mounting insulator and each engine mounting bracket from engine, transaxle and
front suspension member.
7. Separate engine and transaxle. Refer to AT- 2 4 1 , "
TRANSAXLE ASSEMBLY" (A/T), CVT-193, "TRAN-
SAXLE ASSEMBLY" (CVT).
INSTALLATION
Note the following, and install in the reverse order of removal.
Do not allow engine mounting insulator to be damage and careful no engine oil gets on it.
For a path with a specified installation orientation, refer to component figure in EM-223, "Removal and
Installation" .
Make sure all engine mounting insulators are seated properly, then tighten nuts and bolts.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.
Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
RECOMMENDED 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
leakage at connection points.
–Start engine. With engine speed increased, check again for fuel leakage at connection points.
Run engine to check for unusual noise and vibration.
Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids
including engine oil and engine coolant.
Bleed air from lines and hoses of applicable lines, such as in cooling system.
After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.

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NISSAN TEANA 2003 Service Manual ENGINE ASSEMBLY
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Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.Item Before starting engine Engine r

Page 2336 of 3502

NISSAN TEANA 2003 Service Manual EM-228
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CYLINDER BLOCK

CYLINDER BLOCKPFP:11010
Disassembly and AssemblyBBS004WB
PBIC2809E

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