2003 NISSAN TEANA Front cover

CAMSHAFT
EM-51
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b. Use a 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 with black arrow in the figure) with a feeler gauge.

No. 1 cylinder compression TDC
c. Rotate crankshaft pulley one revolution (360 degrees) and align
TDC mark to timing indicator on front cover.

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

No. 4 cylinder compression TDC
4. If out of standard, perform adjustment. Refer to EM-51, "
ADJUSTMENT" .
ADJUSTMENT

Perform adjustment depending on selected head thickness of valve lifter.
SEM139D
Cold Hot * (reference data)
Intake 0.24 - 0.32 (0.009 - 0.013) 0.304 - 0.416 (0.012 - 0.016)
Exhaust 0.26 - 0.34 (0.010 - 0.013) 0.308 - 0.432 (0.012 - 0.017)
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 1 cylinder at
compression TDCINT × ×
EXH × ×
PBIC2624E
KBIA0190E
Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 4 cylinder at
compression TDCINT × ×
EXH × ×
PBIC2625E

TIMING CHAIN
EM-53
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TIMING CHAINPFP:13028
Removal and InstallationBBS00597
1. O-ring 2. O-ring 3. Camshaft sprocket (INT)
4. Camshaft sprocket (EXH) 5. Chain tensioner 6. Spring
7. Chain tensioner plunger 8. Timing chain slack guide 9. Timing chain
10. Front cover 11. Chain guide 12. Intake valve timing control cover
13.Intake valve timing control solenoid
valve14. O-ring 15. RH engine mounting bracket
16. Crankshaft pulley bolt 17. Crankshaft pulley 18. Front oil seal
19. Oil ring 20. O-ring 21. Balancer unit timing chain tensioner
22. Oil pump drive spacer 23. Crankshaft sprocket 24. Timing chain tension guide
25. Balancer unit timing chain 26. Balancer unit
PBIC2419E

EM-54
[QR]
TIMING CHAIN

REMOVAL
1. Remove the following parts.

RH front road wheel and tire

Undercover and splash guard (RH)

PCV hose; Refer to EM-19, "INTAKE MANIFOLD" .

Ignition coil; Refer to EM-31, "IGNITION COIL" .

Rocker cover; Refer to EM-39, "ROCKER COVER" .

Reservoir tank of radiator; Refer to CO-13, "RADIATOR" .

Drive belt; Refer to EM-14, "DRIVE BELTS" .

Alternator; Refer to SC-27, "CHARGING SYSTEM" .

Drive belt auto-tensioner; Refer to EM-15, "Removal and Installation of Drive Belt Auto-Tensioner" .

Exhaust front tube; Refer to EX-2, "EXHAUST SYSTEM" .
2. Drain engine oil. Refer to LU-9, "
Changing Engine Oil" .
CAUTION:
Perform this step when engine is cold.
3. Remove A/C compressor with piping connected. Temporarily secure A/C compressor to vehicle side with
a rope to avoid putting a load on them. Refer to ATC-134, "
Removal and Installation of Compressor" .
4. Remove power steering oil pump with piping connected, and secure it to vehicle side temporarily. Refer to
PS-39, "
HYDRAULIC LINE" .
5. Securely support bottom of transaxle with suitable transmission jack.
6. Remove RH engine mounting insulator. Refer to EM-77, "
ENGINE ASSEMBLY" .
7. Remove oil pans (upper and lower), and oil strainer. Refer to EM-26, "
OIL PAN AND OIL STRAINER" .
8. To support engine, temporarily tighten removed front and rear engine mounting through-bolts for removing
oil pans (upper and lower). Refer to EM-77, "
ENGINE ASSEMBLY" .
9. Remove intake valve timing control cover with the following procedure:
a. Disconnect intake valve timing control solenoid valve harness connector.
b. Disconnect ground cables and remove harness clip.
c. Remove intake valve timing control solenoid valve, if necessary.
d. Loosen bolts in reverse order as shown in the figure.
e . U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ] o r e q u i v a l e n t t o o l t o c u t l i q -
uid gasket for removal.
CAUTION:
Be careful not to damage the mating surfaces.
10. Pull chain guide between camshaft sprockets out through front cover.
11. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Rotate crankshaft pulley clockwise and align TDC mark to timing
indicator on front cover.
KBIA0085E
KBIA0190E

TIMING CHAIN
EM-55
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b. At the same time, make sure that the mating marks on camshaft
sprockets are located as shown in the figure.

If not, rotate crankshaft pulley one more turn to align mating
marks to the positions in the figure.
12. Remove crankshaft pulley with the following procedure:
a. Fix crankshaft pulley with pulley holder (SST), loosen crankshaft
pulley bolt, and locate bolt seating surface at 10 mm (0.39 in)
from its original position.

Use pulley holder after aligning two external holding projec-
tions with bores of crankshaft pulley and grinding the projec-
tions.
b. Attach pulley puller (SST) in the M 6 thread hole on crankshaft
pulley, and remove crankshaft pulley.
13. Remove front cover and RH engine mounting bracket with the following procedure:
PBIC2351E
PBIC2642E
PBIC2413E

EM-56
[QR]
TIMING CHAIN

a. Loosen mounting bolts in reverse order as shown in the figure,
and remove RH engine mounting bracket.
b . U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ] o r e q u i v a l e n t t o o l t o c u t l i q -
uid gasket for removing front cover.
CAUTION:
Be careful not to damage the mating surfaces.
c. Pull out downward front cover.
CAUTION:
Do not let A/C and power steering pipings interfere with
upper part of front cover.
14. Remove front oil seal from front cover using suitable tool.
CAUTION:
Be careful not to damage front cover.
15. Remove timing chain with the following procedure:
a. Push in chain tensioner plunger. Insert a stopper pin into hole on
chain tensioner body to secure chain tensioner plunger and
remove chain tensioner.
NOTE:
Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.
b. Remove timing chain.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is removed. It causes interference
between valve and piston.
16. Remove camshaft sprockets. Refer to EM-41, "
CAMSHAFT" .
17. Remove timing chain slack guide, timing chain tension guide and oil pump drive spacer.
18. Remove balancer unit timing chain tensioner with the following procedure:
a. Lift lever up, and release ratchet claw for return proof.
b. Push tensioner sleeve in, and hold it.
c. Matching the hole on lever with the one on body, insert a stopper
pin to secure tensioner sleeve.
NOTE:
Use approximately 1 mm (0.04 in) dia. hard metal pin as a stop-
per pin.
d. Remove balancer unit timing chain tensioner.
KBIA0083E
KBIA0048E
KBIA0121E

TIMING CHAIN
EM-59
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3. Install crankshaft sprocket and balancer unit timing chain.

Make sure that crankshaft sprocket is positioned with mating
marks on cylinder block and crankshaft sprocket meeting at
the top.

Install balancer unit timing chain by aligning mating marks on
each sprocket and balancer unit timing chain.
4. Install balancer unit timing chain tensioner.
NOTE:
Chain guide and tensioner move freely with staking pin as the
axle. Therefore, bolt hole position of the three points could be
changed during removal. If points change, temporarily fix the
two mounting bolts on chain guide, and move tensioner to mate
the bolt holes.

Be careful not to let mating marks of each sprocket and timing
chain slip.

After installation, make sure the mating marks have not
slipped, then remove stopper pin and release tensioner
sleeve.
5. Install timing chain and related parts.

Install by aligning mating marks on each sprocket and timing
chain.

Before and after installing chain tensioner, check again to
make sure that mating marks have not slipped.

After installing chain tensioner, remove stopper pin, and make
sure that tensioner moves freely.
CAUTION:

For the following note, after the mating marks are
aligned, keep them aligned by holding them with a
hand.

To avoid skipped teeth, do not rotate crankshaft and
camshaft until front cover is installed.
NOTE:
Before installing chain tensioner, it is possible to change the
position of mating mark on timing chain for that on each
sprocket for alignment.
6. Install front oil seal to front cover. Refer to EM-63, "
Removal and Installation of Front Oil Seal" .
7. Install front cover with the following procedure:
a. Install O-rings to cylinder head and cylinder block.
PBIC2183E
KBIA0124E
PBIC2182E

EM-60
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TIMING CHAIN

b. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to front cover as shown in the figure.
Use Genuine Liquid Gasket or equivalent.
NOTE:
Application instruction differs depending on the position.
c. Make sure that mating marks of timing chain and each sprocket are still aligned. Then install front cover.

When installing, align flat faces at oil pump drive spacer and oil pump inner rotor.
CAUTION:

Do not let A/C and power steering pipings interfere with upper part of front cover.

Be careful not to damage front oil seal by interference with front end of crankshaft.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.

Refer to the following for locating M6 bolts.

At the same time, install RH engine mounting bracket. (Bolt
positions 1 to 4 in the figure)
e. After all bolts are tightened, retighten them to specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking to
surface for fitting oil pan (upper).
8. Install chain guide between camshaft sprockets.
9. Install intake valve timing control cover with the following procedure:
a. Install oil rings to the camshaft sprocket (INT) insertion points on backside of intake valve timing control
cover.
b. Install O-ring to front cover.Detail of A : Cross over the start of the applica-
tion and the end.
Detail of B : Apply liquid gasket outside of bolt
holes. (For all bolt holes other than
B, apply to the inside.)
Detail of C : Between here only, apply 4.5 - 5.5
mm (0.177 - 0.217 in) dia.
SBIA0267E
Bolt length: Bolt position
45 mm (1.77 in) : 5, 14, 17
20 mm (0.79 in) : Except the above (Except 1 to 4)
KBIA0083E

TIMING CHAIN
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c. Apply a continuous bead of liquid gasket with tube presser [SST:
WS39930000] to intake valve timing control cover as shown in
the figure.
Use Genuine Liquid Gasket or equivalent.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.
e. Install intake valve timing control solenoid valves to intake valve timing control cover if removed.
f. Connect ground cables, and install harness clip.
10. Insert crankshaft pulley by aligning with crankshaft key.

When inserting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).
CAUTION:
Install protecting front oil seal lip section from any damage.
11. Tighten crankshaft pulley bolt with the following procedure.

Secure crankshaft pulley with pulley holder [SST: KV10109300], and tighten crankshaft pulley bolt.
a. Apply new engine oil to thread and seat surfaces of crankshaft pulley bolt.
b. Tighten crankshaft pulley bolt.
c. Put a paint mark on crankshaft pulley, mating with any one of six
easy to recognize angle marks on bolt flange.
d. Turn another 60 degrees clockwise (angle tightening).

Check the tightening angle with movement of one angle mark.
12. Install all removed parts in the reverse order of removal.
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.
SBIA0260E
KBIA0085E
: 42.1 N·m (4.3 kg-m, 31 ft-lb)
SEM751G