NISSAN TEANA 2003 Service Manual

TIMING CHAIN
EM-183
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e. Tighten mounting bolts in numerical order as shown in the fig-
ure.

There are two types of mounting bolt. Refer to the following
for locating bolts.
f. After all bolts tightening, retighten them to the specified in
numerical order as shown in the figure.

If liquid gasket protrudes, wipe it off immediately.
g. After installing rear timing chain case, check surface height dif-
ference between the following parts on the oil pan (upper)
mounting surface.

If not within standard, repeat the installation procedure.
3. Install water pump with new O-rings. Refer to CO-46, "
WATER PUMP" .
4. Make sure that dowel pin hole, dowel pin and crankshaft key are
located as shown in the figure. (No. 1 cylinder at compression
TDC)
NOTE:
Though camshaft does not stop at the position as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.
CAUTION:
Hole on small dia. side must be used for intake side dowel pin hole. Do not misidentify (ignore big
dia. side).
5. Install timing chain (secondary) and camshaft sprockets (INT and EXH) as follows:
CAUTION:
Mating marks between timing chain and sprockets slip easily. Confirm all mating mark positions
repeatedly during the installation process.Bolt length: Bolt position
20 mm (0.79 in) : 1, 2, 3, 6, 7, 8, 9, 10
16 mm (0.63 in) : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
SEM735G
Standard
Rear timing chain case to cylinder block:
−0.24 to 0.14 mm (−0.009 to 0.006 in)
SEM943G
Camshaft dowel pin hole (intake side)
: At cylinder head upper face side in each bank
Camshaft dowel pin (exhaust side)
: At cylinder head upper face side in each bank
Crankshaft key
: At cylinder head side of right bank
KBIA1073E

EM-184
[VQ]
TIMING CHAIN

a. Push plunger of chain tensioner (secondary) and keep it
pressed in with stopper pin.
b. Install timing chain (secondary) and camshaft sprockets (INT
and EXH).

Align the mating marks on timing chain (secondary) (gold link)
with the ones on camshaft sprockets (INT and EXH)
(punched), and install them.
NOTE:

Mating marks for camshaft sprocket (INT) are on the back
side of camshaft sprocket (secondary).

There are two types of mating mark, circle and oval types.
They should be used for the right and left banks, respec-
tively.

Align dowel pin and pin hole on camshafts with the groove
and dowel pin on sprockets, and install them.

On the intake side, align pin hole on the small diameter side of
the camshaft front end with dowel pin on the back side of
camshaft sprocket, and install them.

On the exhaust side, align dowel pin on camshaft front end
with pin groove on camshaft sprocket, and install them.

In case that positions of each mating mark and each dowel
pin are not fit on mating parts, make fine adjustment to the position holding the hexagonal portion on
camshaft with wrench or equivalent.

Mounting bolts for camshaft sprockets must be tightened in the next step. Tightening them by hand is
enough to prevent the dislocation of dowel pins.

It may be difficult to visually check the dislocation of mating
marks during and after installation. To make the matching
easier, make a mating mark on the top of sprocket teeth and
its extended line in advance with paint.
SEM430G
Right bank : Use circle type.
Left bank : Use oval type.
PBIC2981E
PBIC0891E

TIMING CHAIN
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c. After confirming the mating marks are aligned, tighten camshaft
sprocket mounting bolts.

Secure camshaft using wrench at the hexagonal portion to
tighten mounting bolts.
d. Pull stopper pins out from timing chain tensioners (secondary).
6. Install tension guide.
7. Install timing chain (primary) as follows:
a. Install crankshaft sprocket.

Make sure the mating marks on crankshaft sprocket face the
front of engine.
b. Install timing chain (primary).
KBIA1698J
SEM923G
SEM929E

EM-186
[VQ]
TIMING CHAIN


Install timing chain (primary) so the mating mark (punched) on
camshaft sprocket (INT) is aligned with the pink link on timing
chain, while the mating mark (notched) on crankshaft
sprocket is aligned with the orange one on timing chain, as
shown in the figure.

When it is difficult to align mating marks of timing chain (pri-
mary) with each sprocket, gradually turn camshaft using
wrench on the hexagonal portion to align it with the mating
marks.

During alignment, be careful to prevent dislocation of mating
mark alignments of timing chains (secondary).
8. Install internal chain guide, slack guide and timing chain ten-
sioner (primary).
PBIC3494E
PBIC2109E

TIMING CHAIN
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CAUTION:
Do not overtighten slack guide mounting bolt. It is normal
for a gap to exist under the bolt seat when mounting bolt is
tightened to specification.
9. Install the timing chain tensioner (primary) with the following procedure:
a. Pull plunger stopper tab up (or turn lever downward) so as to
remove plunger stopper tab from the ratchet of plunger.
NOTE:
Plunger stopper tab and lever are synchronized.
b. Push plunger into the inside of tensioner body.
c. Hold plunger in the fully compressed position by engaging
plunger stopper tab with the tip of ratchet.
d. To secure lever, insert stopper pin through hole of lever into ten-
sioner body hole.

The lever parts and the tab are synchronized. Therefore, the
plunger will be secured under this condition.
NOTE:
Figure shows the example of 1.2 mm (0.047 in) diameter thin screwdriver being used as the stopper pin.
e. Install timing chain tensioner (primary).

Remove any dirt and foreign materials completely from the
back and the mounting surfaces of timing chain tensioner (pri-
mary).
f. Pull out stopper pin after installing, and then release plunger.
10. Make sure again that the mating marks on each sprocket and each timing chain have not slipped out of
alignment.
11. Install new O-rings on rear timing chain case.
12. Install new front oil seal on front timing chain case.

Apply new engine oil to both oil seal lip and dust seal lip.
PBIC2633E
PBIC3568E
PBIC3569E
PBIC2548E

EM-188
[VQ]
TIMING CHAIN


Install it so that each seal lip is oriented as shown in the fig-
ure.

Using suitable drift [outer diameter: 60 mm (2.36 in)], press-fit
oil seal until it becomes flush with front timing chain case end
face.

Make sure the garter spring is in position and seal lip is not
inverted.
13. Install water pump cover and chain tensioner cover to front timing chain case.

Apply a continuous bead of liquid gasket with tube presser
[SST: WS39930000] to front timing chain case as shown in
the figure.
Use Genuine Liquid Gasket or equivalent.
14. Install front timing chain case as follows:
SEM715A
PBIC0790E
SEM744GA

TIMING CHAIN
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a. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to front timing chain case back side as shown in
the figure.
Use Genuine Liquid Gasket or equivalent.
b. Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
c. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.

There are two types of mounting bolt. Refer to the following
for locating bolts.
d. After all bolts tightening, retighten them to the specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
e. After installing front timing chain case, check the surface height
difference between the following parts on the oil pan (upper)
mounting surface.

If not within standard, repeat the installation procedure.
15. Install right and left intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
PBIC2648E
M8 bolts : 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Standard
Front timing chain case to rear timing chain case:
−0.14 to 0.14 mm (−0.006 to 0.006 in)
SEM730G
SEM943G

EM-190
[VQ]
TIMING CHAIN

b. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to intake valve timing control covers as shown in
the figure.
Use Genuine Liquid Gasket or equivalent.
c. Install new collared O-ring in front timing chain case oil hole (left
and right sides).
d. Being careful not to move seal rings from the installation grooves, align dowel pins on front timing chain
case with the holes to install intake valve timing control covers.
e. Tighten mounting bolts in numerical order as shown in the fig-
ure.
16. Install crankshaft pulley as follows:
a. Install crankshaft pulley, taking care not to damage front oil seal.

When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).
b. Fix crankshaft with pulley holder [SST: KV10109300].
c. Tighten crankshaft pulley bolt.
d. Place a matching mark (A) on crank pulley (1) aligning with the
matching (B) of crank pulley mounting bolt (2). Tighten the bolts
90 degrees (one marks).
SBIA0492E
PBIC2631E
PBIC0918E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC4627J

TIMING CHAIN
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e. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns
smoothly.
17. For the following operations, perform steps in the reverse order of removal.
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.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/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 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.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid. 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
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

EM-192
[VQ]
CAMSHAFT

CAMSHAFTPFP:13001
Removal and InstallationBBS004W1
REMOVAL
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
1.Intake valve timing control solenoid
valve2. Gasket 3. Camshaft bracket (No. 2 to 4)
4. Seal washer 5. Camshaft (EXH) 6. Camshaft (INT)
7. Camshaft bracket (No. 1) 8. Dowel pin 9. Valve lifter
10. O-ring 11. Timing chain tensioner (secondary) 12. Spring
13. Plunger 14. Cylinder head (right bank) 15. Cylinder head (left bank)
16. O-ring 17.Camshaft position sensor (PHASE)
(right bank)18.Camshaft position sensor (PHASE)
(left bank)
PBIC2477E