cam NISSAN TEANA 2003 Service Manual

CAMSHAFT
EM-47
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INSTALLATION
1. Install valve lifters.

Install them in the original positions.
2. Install camshafts.

Distinction between intake and exhaust camshafts is per-
formed with the different shapes of rear end.

Install camshafts so that camshaft dowel pins on the front side
are positioned as shown in the figure.
3. Install camshaft brackets with the following procedure.
CAUTION:
Completely remove any foreign material on back surface of camshaft brackets and top surface of
cylinder head.
a. Install camshaft brackets (No. 2 to 5) aligning the identification
marks on upper surface as shown in the figure.
NOTE:
Install so that identification mark can be correctly read when
viewed from the exhaust side.
b. Install camshaft bracket (No. 1) with the following procedure:
i. Apply liquid gasket to camshaft bracket (No. 1) as shown in the
figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
After installation, be sure to wipe off any excessive liquid
gasket leaking from part “A”.Intake : Signal plate shape for camshaft position
sensor (PHASE)
Exhaust : Cone end shape
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SBIA0256E
PBIC2579E

EM-48
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CAMSHAFT

ii. Apply liquid gasket to camshaft bracket (No. 1) contact surface
on the front cover backside.
Use Genuine Liquid Gasket or equivalent.

Apply liquid gasket to the outside of bolt hole on front cover.
iii. For camshaft bracket (No. 1) near installation position, and
install it without disturbing the liquid gasket applied to the sur-
faces.
4. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8 in numerical order.
c. Tighten all bolts in numerical order.
d. Tighten all bolts in numerical order.
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the parts listed below.

Mating surfaces of rocker cover.

Mating surface of front cover. (When installed without front cover)
5. Install camshaft position sensor (PHASE).
6. Install camshaft sprockets.

Install them by aligning the mating marks on each camshaft
sprocket with the paint marks on timing chain link plate during
removal.
CAUTION:

Aligned mating marks could slip. Therefore, after
matching them, hold the timing chain in place by hand.

Before and after installing chain tensioner, make sure
again that mating marks have not slipped.
NOTE:
Before installation of chain tensioner, it is possible to re-match
the marks on timing chain with the ones on each sprocket.
7. Install chain tensioner.
SBIA0258E
PBIC2641E
: 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 2.0 N·m (0.2 kg-m, 1 ft-lb)
: 5.9 N·m (0.6 kg-m, 4 ft-lb)
: 10.4 N·m (1.1 kg-m, 8 ft-lb)
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PBIC2351E

CAMSHAFT
EM-49
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CAUTION:
After installation, pull the stopper pin off completely, and make sure that chain tensioner plunger
is released.
8. Install chain guide.
9. Install intake valve timing control cover with the following procedure:
a. Install oil rings to the intake camshaft sprocket insertion points on backside of intake valve timing control
cover.
b. Install O-ring to front cover.
c. Apply 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 valve to intake valve timing control cover if removed.
f. Connect ground cables, and install harness clip.
10. Check and adjust valve clearance. Refer to EM-50, "
Valve Clearance" .
11. Install in the reverse order of removal after this step.
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.
INSPECTION AFTER INSTALLATION
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:

Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT-II
and it is directed according to inspection procedure of EC section. Refer to EC-82, "
SELF-DIAG
RESULTS MODE" .

Check when the engine is cold so as to prevent burns from any splashing engine oil.
1. Check the engine oil level. Refer to LU-7, "
ENGINE OIL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release fuel pressure. Refer to EC-49, "
FUEL PRESSURE RELEASE" .
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-41, "
CAMSHAFT" .
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EM-50
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CAMSHAFT

4. Crank the engine, and then make sure that engine oil comes out
from intake valve timing control cover oil hole. End crank after
checking.
WARNING:
Be careful not to touch rotating parts (drive belt, idler pul-
ley, and crankshaft pulley, etc.).
CAUTION:
Engine oil may squirt from intake valve timing control sole-
noid valve installation hole during cranking. Use a shop
cloth to prevent the engine components and the vehicle. Do
not allow engine oil to get on rubber components such as
drive belt or engine mount insulators. Immediately wipe off
any splashed engine oil.

Clean oil groove between oil strainer and intake valve timing control solenoid valve if engine oil does not
come out from intake valve timing control cover oil hole. Refer to LU-5, "
LUBRICATION SYSTEM" .
5. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to LU-5, "LUBRICATION SYSTEM" .
6. After inspection, install removed parts.
Valve ClearanceBBS00596
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-39, "
ROCKER COVER" .
2. Open splash guard on RH undercover.
3. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley clockwise and align TDC mark to
timing indicator on front cover.

At the same time, make sure that both intake and exhaust
cam noses of No. 1 cylinder face outside as shown in the fig-
ure.

If they do not face outside, rotate crankshaft pulley once more
(360 degrees) and align as shown in the figure.
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CAMSHAFT
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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 × ×
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Measuring position No. 1 CYL. No. 2 CYL. No. 3 CYL. No. 4 CYL.
No. 4 cylinder at
compression TDCINT × ×
EXH × ×
PBIC2625E

EM-52
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CAMSHAFT

1. Remove camshaft. Refer to EM-41, "REMOVAL" .
2. Remove valve lifters at the locations that are out of the standard.
3. Measure the center thickness of the removed valve lifters with a
micrometer.
4. Use the equation below to calculate valve lifter thickness for replacement.

Thickness of new valve lifter can be identified by stamp mark
on the reverse side (inside the cylinder).
Stamp mark “696” indicates 6.96 mm (0.2740 in) in thickness.
NOTE:
Available thickness of valve lifter: 26 sizes range 6.96 to 7.46 mm (0.2740 to 0.2937 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to EM-110, "
Available Valve Lifter" .
5. Install the selected valve lifter.
6. Install camshaft. Refer to EM-47, "
INSTALLATION" .
7. Manually rotate crankshaft pulley a few rotations.
8. Make sure that valve clearances for cold engine are within specifications by referring to the specified val-
ues. Refer to EM-50, "
INSPECTION" .
9. Install all removed parts in the reverse order of removal. Refer to EM-47, "
INSTALLATION" .
10. Warm up the engine, and check for unusual noise and vibration.
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Valve lifter thickness calculation: t = t1 + (C1 – C2 )
t = Valve lifter thickness to be replaced
t
1 = Removed valve lifter thickness
C
1= Measured valve clearance
C
2= Standard valve clearance:
Intake : 0.28 mm (0.011 in)
Exhaust : 0.30 mm (0.012 in)
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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
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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.
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TIMING CHAIN
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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:
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EM-56
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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.
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