2003 NISSAN TEANA Engine block

EM-28
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OIL PAN AND OIL STRAINER

g. Pull oil pan (upper) out.
11. Remove O-rings at front cover side.
INSPECTION AFTER REMOVAL
Oil Strainer
Clean oil strainer if any object attached.
INSTALLATION
1. Install oil pan (upper) with the following procedure:
a. Use scraper to remove old liquid gasket from mating surfaces.

Also remove the old liquid gasket from mating surface of cyl-
inder block.

Remove old liquid gasket from the bolt holes and threads.
CAUTION:
Do not scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
b. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:

Apply liquid gasket to outside of bolt hole for the posi-
tions shown by arrows.

Attaching should be done within 5 minutes after coating.
c. Install new O-rings at front cover side.
d. Tighten bolts in numerical order as shown in the figure.
NOTE:

No. 12 and 17 mean double tightening of bolts No. 1 and 2.

Refer to the following for locating bolts.
e. Tighten transaxle joint bolts. Refer to AT- 2 4 1 , "
TRANSAXLE ASSEMBLY" .
f. Install rear plate cover.
g. Install engine mounting related parts below. Refer to EM-77, "
ENGINE ASSEMBLY" .

RH engine mounting insulator bolts (vehicle side)

Front engine mounting through-bolt

Rear engine mounting through-bolt
h. Release supporting with the transmission jack.
2. Install oil strainer.
3. Install oil pan (lower) with the following procedure:
MEM108A
SBIA0253E
M6 × 20 mm (0.79 in) : No. 18, 19
M8 × 25 mm (0.98 in) : No. 1, 2, 3, 11
M8 × 45 mm (1.77 in) : No. 4, 10, 13, 14, 15, 16
M8 × 100 mm (3.97 in) : No. 5, 6, 7, 8, 9
SBIA0233E

EM-64
[QR]
OIL SEAL

Removal and Installation of Rear Oil SealBBS0059A
REMOVAL
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-77, "
ENGINE ASSEMBLY" .
2. Install engine sub-attachment with engine stand shaft [SST: KV10115300 and KV10106500] to right side
of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000]. Refer to EM-81,
"CYLINDER BLOCK" .
3. Remove drive plate. Refer to EM-81, "
CYLINDER BLOCK" .
4. Remove rear oil seal with suitable tool.
CAUTION:
Be careful not to damage crankshaft and cylinder block.
INSTALLATION
1. Apply new engine oil to new rear oil seal joint surface and seal lip.
2. Install rear oil seal so that each seal lip is oriented as shown in
the figure.

Press in rear oil seal to the position as shown in the figure.

Press-fit rear oil seal with suitable drift [outside diameter 102
mm (4.02 in), inside diameter 86 mm (3.39 in)].
CAUTION:

Be careful not to damage crankshaft and cylinder
block.

Press-fit oil seal straight to avoid causing burrs or tilt-
ing.

Do not touch grease applied onto oil seal lip.
3. Install in the reverse order of removal after this step.
SEM715A
SBIA0281E
SBIA0280E

CYLINDER HEAD
EM-67
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NOTE:
Can be removed and installed even when assembled with cylinder head.
4. Remove front cover and timing chain. Refer to EM-53, "
TIMING CHAIN" .
5. Remove camshafts. Refer to EM-41, "
CAMSHAFT" .
6. Remove cylinder head loosening bolts in reverse order as
shown in the figure.

Using the following tool, loosen cylinder head bolts.
NOTE:
There are two types of cylinder head bolt because of parallel
manufacture.
7. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter

Cylinder head bolts are tightened by plastic zone tightening
method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with a new one.

If reduction of outer diameter appears in a position other than
“d2”, use it as “d2” point.
NOTE:
When replacing any cylinder head bolts, it is possible to use them
with mixing flange bolt and bolt with washer.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checking. Refer to EM-102, "
CYLIN-
DER BLOCK DISTORTION" .
1. Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with scraper.
CAUTION:
Use utmost care not to allow gasket debris to enter passages for engine oil or engine coolant.
2. At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions.

If it exceeds the limit, replace cylinder head.Bolt with washer
: Hexagonal wrench [size 10 mm (0.39 in)]
Flange bolt
: TORX socket (size E20)
KBIA0058E
Limit (“d1” – “d2”): 0.23 mm (0.0091 in)
SBIA0269E
Limit : 0.1 mm (0.004 in)
PBIC0075E

EM-82
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CYLINDER BLOCK

NOTE:
There exist different signal plates because of concurrent settings. Consequently, there are two kinds of crank
shafts and signal plate bolts.
DISASSEMBLY
1. Remove engine and transaxle assembly from vehicle, and separate transaxle from engine. Refer to EM-
77, "ENGINE ASSEMBLY" .
2. Mount engine on engine stand [SST: ST0501S000] with the following procedure:
a. Remove oil pressure switch on right side of cylinder block. Refer to LU-7, "
OIL PRESSURE CHECK" .
b. Remove rear engine mounting bracket. Refer to EM-77, "
ENGINE ASSEMBLY" .
c. Install engine sub-attachment (SST) and engine stand shaft
[SST: KV10106500] to right side of cylinder block.

Do not use bolt hole at the upper right looking from bolt inser-
tion side as shown in the figure.

Machine a bolt hole at the lower right of the engine sub-
attachment looking from bolt insertion side as shown in the
figure.
d. Lift engine, and mount it onto the engine stand.
KBIA0060E
SBIA0272E
KBIA0140E

CYLINDER BLOCK
EM-83
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A widely use engine stand can be used.
CAUTION:
Use engine stand that has a load capacity [approximately
150 kg (331 lb) or more] large enough for supporting the
engine weight.
NOTE:
This example is an engine stand for holding at transaxle
mounting side with drive plate removed.
3. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
4. Drain engine coolant by removing water drain plug from inside of
engine.
5. Remove cylinder head. Refer to EM-65, "
CYLINDER HEAD" .
6. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
7. Remove crankshaft position sensor (POS).
CAUTION:

Avoid impacts such as a dropping.

Do not disassemble.

Keep it away from metal particles.

Do not place sensor in a location where it is exposed to
magnetism.
8. Remove drive plate.

Secure drive plate with stopper plate, and remove mounting
bolts.
NOTE:
Use TORX socket (size E20).
CAUTION:
Be careful not to damage or scratch drive plate.
PBIC0085E
PBIC2443E
PBIC2191E
PBIC2352E

EM-86
[QR]
CYLINDER BLOCK

CAUTION:

Be careful not damage or deform signal plate mounted on
crankshaft.

When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.

Do not remove signal plate unless it is necessary to do
so.
NOTE:
When removing or installing signal plate, use TORX socket (size
T30).
17. Pull rear oil seal out from rear end of crankshaft.
CAUTION:
Be careful not to damage crankshaft.
NOTE:
When replacing rear oil seal without removing lower cylinder block, use screwdriver to pull it out from
between crankshaft and cylinder block.
18. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.
CAUTION:
Identify installation positions, and store them without mixing them up.
ASSEMBLY
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
2. Install each plug to cylinder block as shown in the figure.

Apply liquid gasket to the thread of water drain plug “A”.
Use Genuine Liquid Gasket or equivalent.

Apply liquid gasket to the thread of plug “C”.
Use Anaerobic Liquid Gasket or equivalent.

Tighten each plug as specified below.
NOTE:
Do not apply liquid gasket to the thread of plug “B”.
3. Install main bearings and thrust bearings with the following procedure:
a. Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block and lower cylinder
block.
b. Install thrust bearings to the both sides of the No. 3 journal hous-
ing on cylinder block.

Install thrust bearings with the oil groove facing crankshaft
arm (outside).
SBIA0275E
Part Washer Tightening torque
A No 9.8 N·m (1.0 kg-m, 87 in-lb)
B Yes 53.9 N·m (5.5 kg-m, 40 ft-lb)
C Yes 62.8 N·m (6.4 kg-m, 46 ft-lb)
PBIC2626E
PBIC0264E

CYLINDER BLOCK
EM-87
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c. Install main bearings paying attention to the direction.

Main bearing with an oil hole and groove goes on cylinder
block. The one without them goes on lower cylinder block.

Only main bearing (on cylinder block) for No. 3 journal has dif-
ferent specifications.

Before installing main bearings, apply new engine oil to the
bearing surface (inside). Do not apply engine oil to the back
surface, but thoroughly clean it.

When installing, align main bearing stopper to the notch.

Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.
4. Install signal plate to crankshaft if removed.
a. Position crankshaft and signal plate using dowel pin, and tighten
mounting bolts.
NOTE:

Dowel pin of crankshaft and signal plate is provided as a set
for each. If dowel pin is not available (when reusing crank-
shaft and signal plate), use M6 bolt [length 10 mm (0.39 in) or
more] as a substitute.

Figure shows an example of type 1.
b. Remove dowel pin.
CAUTION:
Be sure to remove dowel pin.
5. Install crankshaft to cylinder block.

While turning crankshaft by hand, make sure that it turns smoothly.
CAUTION:
Do not install rear oil seal yet.
6. Inspect outer diameter of lower cylinder block mounting bolts. Refer to EM-107, "
LOWER CYLINDER
BLOCK MOUNTING BOLT OUTER DIAMETER" .
7. Install lower cylinder block with the following procedure:
a. Apply liquid gasket with tube presser [SST: WS39930000] to
lower cylinder block as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
After liquid gasket is applied, rear oil seal installation must
be finished within 5 minutes. Therefore, the following pro-
cedure must be performed quickly.
NOTE:
Lower cylinder block cannot be replaced as a single part,
because it is machined together with cylinder block.
b. Tighten lower cylinder block mounting bolts with the following procedure:
i. Apply new engine oil to threads and seat surfaces of mounting bolts.
PBIC2193E
A : Signal plate
B : Crank shaft
C : Dowel pin (used to position the signal plate)
PBIC4436J
SBIA0279E

EM-88
[QR]
CYLINDER BLOCK

ii. Tighten M8 bolts in numerical order from No. 11 to 22 in the fig-
ure.
CAUTION:
Wipe off completely any protruding liquid gasket on rear oil
seal installation surface.
NOTE:
There are more processes to complete the tightening of mount-
ing bolts. However stop procedure here to install rear oil seal.
c. Install rear oil seal. Refer to EM-64, "
Removal and Installation of Rear Oil Seal" .
d. Restart tightening of lower cylinder block bolts with the following procedure:
i. Tighten M10 bolts in numerical order from No. 1 to 10 in the fig-
ure.
ii. Turn M10 bolts 60 degrees clockwise (angle tightening) in
numerical order from No. 1 to 10 in the figure.
CAUTION:
Check and confirm the tightening angle by using angle
wrench (SST) or protractor. Avoid judgment by visual
inspection without the tool.

After installing mounting bolts, make sure that crankshaft can be rotated smoothly by hand.

Wipe off completely any protruding liquid gasket on front side of engine.

Check crankshaft end play. Refer to EM-99, "CRANKSHAFT END PLAY" .
8. Install piston to connecting rod with the following procedure:
a. Using snap ring pliers, install new snap ring to the groove of the piston rear side.

Insert it fully into groove to install.
b. Assemble piston to connecting rod.

Using industrial drier or similar tool, heat the piston until the piston pin can be pushed in by hand with-
out excess force [approximately 60 to 70 °C (140 to 158 °F)]. From the front to the rear, insert piston pin
into piston and connecting rod. : 25.1 N·m (2.6 kg-m, 19 ft-lb)
KBIA0063E
: 39.2 N·m (4.0 kg-m, 29 ft-lb)
KBIA0063E
KBIA0065E