2003 NISSAN TEANA lock

EM-196
[VQ]
CAMSHAFT


Measure the following parts if out of the limit.
–Dimension “A” for camshaft No. 1 journal
–Dimension “B” for cylinder head No. 1 journal bearing.

Refer to the standards above, and then replace camshaft and/or
cylinder head.
Camshaft Sprocket Runout
1. Put V-block on precise flat table, and support No. 2 and 4 journal of camshaft.
CAUTION:
Do not support journal No. 1 (on the side of camshaft sprocket) because it has a different diameter
from the other three locations.
2. Measure the camshaft sprocket runout with dial indicator. (Total
indicator reading)

If it exceeds the limit, replace camshaft sprocket.
Valve Lifter
Check if surface of valve lifter has any wear or cracks.

If anything above is found, replace valve lifter. Refer to EM-202,
"Valve Clearance" .
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER

Measure outer diameter at 1/2 height of valve lifter with
micrometer since valve lifter is in barrel shape.Standard : 27.500 - 27.548 mm (1.0827 - 1.0846 in)
Standard : 27.360 - 27.385 mm (1.0772 - 1.0781 in)
KBIA2404J
Limit : 0.15 mm (0.0059 in)
PBIC0930E
KBIA0182E
Standard
VQ23DE : 29.977 - 29.987 mm (1.1802 - 1.1806 in)
VQ35DE : 33.977 - 33.987 mm (1.3377 - 1.3381 in)
JEM798G

EM-202
[VQ]
CAMSHAFT

Summary of the inspection items:
* Transmission/transaxle/CVT fluid. power steering fluid, brake fluid, etc.
Valve ClearanceBBS004W2
INSPECTION
In cases of removing/installing or replacing camshaft and valve-
related parts, or of unusual engine conditions due to changes in
valve clearance (found malfunctions during stating, idling or causing
noise), perform inspection as follows:
1. Remove rocker covers (right and left banks). Refer to EM-160, "
ROCKER COVER" .
2. Remove splash guard (RH).
3. Measure the valve clearance as follows:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley clockwise to align timing mark
(grooved line without color) with timing indicator.

Make sure that intake and exhaust cam noses on No. 1 cylin-
der (engine front side of right bank) are located as shown in
the figure.

If not, rotate crankshaft one revolution (360 degrees) and
align as shown in the figure.
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —
SEM713A
SEM918G
SEM418G

CAMSHAFT
EM-203
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b. Use feeler gauge, measure the clearance between valve lifter
and camshaft.
Valve clearance:
Unit: mm (in)
*: Approximately 80°C (176°F)

By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below (locations
indicated in the figure) with feeler gauge.

No. 1 cylinder at compression TDC
c. Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 3 cylinder at
TDC of its compression stroke.
NOTE:

To align cylinder No.3 with the compression top dead center,
place matching marks (A) on the crank pulley (1) side and on
the cylinder block side at a point 240°counterclockwise from
the compression top dead center using the hex head of the
crank pulley mounting bolt as aguide.
SEM139D
Cold Hot * (reference data)
Intake 0.26 - 0.34 (0.010 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.29 - 0.37 (0.011 - 0.015) 0.308 - 0.432 (0.012 - 0.017)
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 1 cylinder at
compression TDCEXH×
INT×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 1 cylinder at
compression TDCINT×
EXH×
PBIC2054E
PBIC4628J

EM-204
[VQ]
CAMSHAFT


By referring to the figure, measure the valve clearances at
locations marked “×” as shown in the table below (locations
indicated in the figure).

No. 3 cylinder at compression TDC
d. Rotate crankshaft by 240 degrees clockwise (when viewed from engine front) to align No. 5 cylinder at
TDC of compression stroke.
NOTE:

To align cylinder No.5 with the compression top dead center,
place matching marks (A) on the crank pulley (1) side and on
the cylinder block side at a point 240°counterclockwise from
the compression top dead center using the hex head of the
crank pulley mounting bolt as aguide.
Measuring position (right bank) No. 1 CYL. No. 3 CYL. No. 5 CYL.
No. 3 cylinder at
compression TDCEXH×
INT×
Measuring position (left bank) No. 2 CYL. No. 4 CYL. No. 6 CYL.
No. 3 cylinder at
compression TDCINT×
EXH ×
PBIC2055E
PBIC4628J

OIL SEAL
EM-207
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OIL SEALPFP:00100
Removal and Installation of Valve Oil SealBBS004W3
REMOVAL
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Install engine sub-attachment with engine stand shaft [SST: KV10117001 and KV10106500] to right side
of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000]. Refer to EM-228,
"CYLINDER BLOCK" .
3. Remove camshaft relating to valve oil seal to be removed. Refer to EM-192, "
CAMSHAFT" .
4. Remove valve lifters. Refer to EM-192, "
CAMSHAFT" .
5. Rotate crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.
6. Remove valve collet.

Compress valve spring with valve spring compressor, attach-
ment, adapter (SST). Remove valve collet with magnet hand.
CAUTION:
When working, take care not to damage valve lifter holes.
7. Remove valve spring retainer and valve spring.
8. Remove valve oil seal using valve oil seal puller (SST).
INSTALLATION
1. Apply engine oil on new valve oil seal joint and seal lip.
2. Using valve oil seal drift (SST), press-fit valve seal to height “H”
shown in the figure.
NOTE:
Dimension “H”: Height measured before valve spring seat instal-
lation
3. Install in the reverse order of removal after this step.
PBIC1791E
PBIC1610E
Intake and exhaust : 14.3 - 14.9 mm (0.563 - 0.587 in)
PBIC1611E

EM-208
[VQ]
OIL SEAL

Removal and Installation of Front Oil SealBBS004W4
REMOVAL
1. Remove the following:

Right side front road wheel and tire.

Splash guard (RH)

Drive belts; Refer to EM-128, "DRIVE BELTS" .

Crankshaft pulley; Refer to EM-173, "TIMING CHAIN" .
2. Remove front oil seal using suitable tool.
CAUTION:
Be careful not to damage front timing chain case and crank-
shaft.
INSTALLATION
1. Apply engine oil to both oil seal lip and dust seal lip.
2. Install front oil seal.

Install front oil seal so that each seal lip is oriented as shown
in the figure.

Using suitable drift, press-fit until the height of front oil seal is
level with the mounting surface.
–Suitable drift: outer diameter 60 mm (2.36 in), inner diameter
50 mm (1.97 in).
CAUTION:

Be careful not to damage front timing chain case and
crankshaft.

Press-fit straight and avoid causing burrs or tilting oil
seal.
3. Install in the reverse order of removal after this step.
Removal and Installation of Rear Oil SealBBS004W5
REMOVAL
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Install engine sub-attachment with engine stand shaft [SST: KV10117001 and KV10106500] to right side
of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000]. Refer to EM-228,
"CYLINDER BLOCK" .
3. Remove drive plate. Refer to EM-228, "
CYLINDER BLOCK" .
4. Remove oil pan (upper). Refer to EM-145, "
OIL PAN AND OIL STRAINER" .
SEM829E
SEM715A
SEM829E

OIL SEAL
EM-209
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5. Use seal cutter (SST) to cut away liquid gasket and remove rear
oil seal retainer.
CAUTION:
Be careful not to damage mating surfaces.
NOTE:
Regard both rear oil seal and retainer as an assembly.
INSTALLATION
1. Remove old liquid gasket on mating surface of cylinder block and oil pan (upper) using scraper.
2. Apply new engine oil to both oil seal lip and dust seal lip of new rear oil seal retainer.
3. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to new rear oil seal retainer as shown in the fig-
ure.
Use Genuine Liquid Gasket or equivalent.

Assembly should be done within 5 minutes after coating.
4. Install rear oil seal retainer to cylinder block. Refer to EM-228, "
CYLINDER BLOCK" .
5. Install in the reverse order of removal after this step.
PBIC1612E
PBIC2649E

CYLINDER HEAD
EM-211
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CAUTION:
Always use a fully changed battery to obtain specified engine speed.

If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.

If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylin-
der head gasket.
9. After inspection is completed, install removed parts.
10. Start engine, and make sure that engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-394, "
TROUBLE DIAGNOSIS" .
Removal and InstallationBBS004W7
REMOVAL
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Install engine sub-attachment with engine stand shaft [SST: KV10117001 and KV10106500] to right side
of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000]. Refer to EM-228,
"CYLINDER BLOCK" .
1. Cylinder head (left bank) 2. Cylinder head bolt 3. Cylinder head (right bank)
4. Cylinder head gasket (right bank) 5. Cylinder head gasket (left bank) 6. Oil level gauge
PBIC2479E