2014 NISSAN TEANA SEC

EM-182
< REMOVAL AND INSTALLATION >[VQ35DE]
TIMING CHAIN
TIMING CHAIN
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Removal and InstallationINFOID:0000000009460565
CAUTION:
• After removing timing chain, do not turn the crankshaft and camsh aft separately, or the valves will
strike the pistons.
• When installing camshafts, chain tensioners, oil seal s, or other sliding parts, lubricate contacting
surfaces with new engine oil.
• Apply new engine oil to bolt threads and seat surfaces when inst alling camshaft sprockets, camshaft
brackets, and crankshaft pulley.
REMOVAL
1. Remove front timing chain case. Refer to EM-174, "Removal and Installation".
1. Timing chain tensioner 2. Internal chain guide 3. Timing chain tensioner
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Camshaft sprocket (INT) 9. Timing chain (secondary)
10. Camshaft sprocket (EXH) 11. Slack guide 12. Crankshaft sprocket
13. Rear timing chain case 14. Tension guide 15. O-ring
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TIMING CHAINEM-183
< REMOVAL AND INSTALLATION > [VQ35DE]
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2. Remove the intake manifold collector. Refer to
EM-146, "Removal and Installation".
3. Place paint marks on the timing chain and sprockets to indicate the correct position of the components for
installation.
4. Remove the timing chain tensioner (primary).
a. Pull lever down and release plunger stopper tab. Plunger stop- per tab can be pushed up to release (coaxial structure with
lever).
b. Insert stopper pin into tensioner body hole to hold lever, and keep the tab released. An Allen wrench [1.2 mm (0.047 in)] is
used for a stopper pin as an example.
c. Insert plunger into tensioner body by pressing the slack side chain guide.
d. Keep the slack side chain guide pressed and hold it by pushing the stopper pin through the lever hole and body hole.
e. Remove the bolts and remove the timing chain tensioner.
5. Remove the internal chain guide, and slack guide.
6. Remove primary timing chain and crankshaft sprocket. CAUTION:
After removing timing chain, do not turn the crankshaft and camsh aft separately, or the valves will
strike the pistons.
7. Attach a suitable stopper pin to the right and left camshaft chain tensioners (for secondary timing chains).
8. Remove timing chain (secondary) and camshaft sprockets as follows:
SEM732G
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SEM923G
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EM-184
< REMOVAL AND INSTALLATION >[VQ35DE]
TIMING CHAIN
a. Attach a suitable stopper pin (B) to the bank 1 (A) and bank 2
(C) timing chain tensioners (secondary) (1).
NOTE:
• Use approximately 0.5 mm (0.02 in) diameter hard metal pin
as a stopper pin.
• Removal of camshaft bracket (No. 1) is required prior to
removing the timing chain tensioner (secondary).
b. Remove camshaft sprockets (INT and EXH) bolts. • Apply paint to the timing chain and camshaft sprockets for alignment during installation.
• Secure the hexagonal portion of camshaft using a wrench to
loosen bolts.
CAUTION:
Do not loosen bolts using an ything other than the cam-
shaft hexagonal portion. Do no t apply tension to the tim-
ing chain.
c. Remove timing chain (secondary) together with camshaft sprockets. • Turn camshaft slightly to keep the chain ti ght when removing the timing chain (secondary).
• Insert 0.5 mm (0.020 in) thick metal or resin plate between tim- ing chain and timing chain tensioner plunger (guide) (E).
Remove timing chain (secondary) (2) together with camshaft
sprockets with timing chain loose from guide groove.
CAUTION:
Be careful of plunger coming off when removing timing chain (secondary). The plunger of timing
chain tensioner (secondary) moves during operatio n, which could cause the stopper pin to fall
out.
• Bank 1 shown.
d. Camshaft sprocket (INT) is two-for-one structure of sprockets for timing chain (primary) and for timing
chain (secondary).
CAUTION:
• Handle camshaft sprocket (INT) carefully to avoid any
shock to camshaft sprocket.
• Do not disassemble. [Do not loosen bolts (A) as shown].
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(1) : Timing chain tensioner (secondary)
(A) : Bank 1
(B) : View B
(C) : Stopper pin
(D) : Plate
(F) : Timing chain tensioner (body)
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PBIC2980E
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TIMING CHAINEM-185
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9. Remove the chain tension guide.
INSPECTION
Check for cracks and any excessive
wear of the timing chain. Replace the timing chain as necessary.
INSTALLATION
NOTE:
The illustration shows the relationship between the mating mark on each timing chain and that on the corre-
sponding sprocket, the components installed.
1. Install the timing chain tension guide.
2. Check that dowel pin (A) and crankshaft key (1) are located as shown. (No. 1 cylinder at compression TDC)
NOTE:
Though camshaft does not stop at the position as shown, for the
placement of cam nose, it is generally accepted camshaft is
placed in the same direction.
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1. Internal chain guide 2. Camshaft sprocket (intake) 3. Mating mark (pink link)
4. Mating mark (punched) 5. Secondary timing chain tensioner 6. Mating mark (orange link)
7. Secondary timing chain 8. Camshaft sprocket (exhaust) 9. Tension guide
10. Water pump 11. Crankshaft sprocket 12. Mating mark (notched)
13. Primary timing chain 14. Slack guide 15. Primary timing chain tensioner
16. Mating mark (back side) 17. Crankshaft key
Camshaft dowel pin : At cylinder head upper face side in each bank
Crankshaft key : At cylinder head side of bank 1
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EM-186
< REMOVAL AND INSTALLATION >[VQ35DE]
TIMING CHAIN
3. Install the secondary timing chains and camshaft sprockets.
CAUTION:
Matching marks between the timing chain and sprockets
slip easily. Confirm all matchi ng mark positions repeatedly
during the installation process.
• Push the sleeve of the secondary chain tensioner and keep it
pressed in with a stopper pin.
a. Install timing chain (secondary) (2) and camshaft sprockets [INT (1) and EXH (3)].
NOTE:
Bank 1 shown (rear view).
• Align the mating marks on timing chain (secondary) (orange link) with the mating marks on camshaft sprockets (INT and
EXH), and install them.
• Align dowel pin on camshafts with the groove on sprockets,
and install them.
• Tighten the bolts for the camshaft sprockets by hand enough to prevent the dowel pins from falling out of the grooves.
• It may be difficult to visually check the dislocation of mating marks during and after installation. To make the matching eas-
ier, make a mating mark (A) on the top of sprocket teeth and
its extended line with paint.
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(A) : Dowel pin groove
(B) : Mating mark (2 oblong on rear face)
(C) : Orange link
(D) : Mating mark (2 circles on rear face)
(E) : Mating mark (Oblong on rear face)
(F) : Dowel pin groove
(G) : Mating mark (Circle on rear face)
(H) : Orange link
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(B) : Mating mark (orange link)
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TIMING CHAINEM-187
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4. After confirming the mating marks are aligned, tighten the cam-
shaft sprocket bolts.
• Secure the camshaft using a wrench at the hexagonal portion
to tighten the bolts.
5. Pull the stopper pins out from the secondary timing chain ten- sioners.
6. Install the crankshaft sprocket on the crankshaft. • Make sure the mating marks on the crankshaft sprocket facethe front of the engine.
7. Install the primary timing chain. • Install primary timing chain so the mating mark (punched) (B)
on camshaft sprocket (C) is aligned with the pink link (A) on
the timing chain, while the mating mark (notched) (E) on the
crankshaft sprocket (D) is aligned with the orange one (F) on
the timing chain, as shown.
• When it is difficult to align mating marks of the primary timing chain with each sprocket, gradually turn the camshaft using a
wrench on the hexagonal portion to align it with the mating
marks.
• During alignment, be careful to prevent dislocation of mating
mark alignments of the secondary timing chains.
(G): Water pump
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SEM923G
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Revision: November 20132014 Altima NAM

REAR TIMING CHAIN CASEEM-189
< REMOVAL AND INSTALLATION > [VQ35DE]
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REAR TIMING CHAIN CASE
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Removal and InstallationINFOID:0000000009460567
REMOVAL
CAUTION:
• After removing timing chain, do not turn the crankshaft and camshaft separately, or the valves will
strike the pistons.
• When installing camshafts, chain tensioners, oil seal s, or other sliding parts, lubricate contacting
surfaces with new engine oil.
• Apply new engine oil to bolt threads and seat su rfaces when installing camshaft sprockets, camshaft
brackets, and crankshaft pulley.
• Before disconnecting fuel hose, release fuel pressure. Refer to FL-5, "Inspection"
.
1. Timing chain tensioner 2. Internal chain guide 3. Timing chain tensioner
4. Oil pressure sensor 5. Camshaft sprocket (EXH) 6. Timing chain (secondary)
7. Timing chain (primary) 8. Camshaft spro cket (INT) 9. Camshaft sprocket (INT)
10. Timing chain (secondary) 11. Camshaft sprocket (EXH) 12. Slack guide
13. Crankshaft sprocket 14. Rear timing chain case 15. Tension guide
16. O-ring
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Revision: November 20132014 Altima NAM

EM-190
< REMOVAL AND INSTALLATION >[VQ35DE]
REAR TIMING CHAIN CASE
• Before removing the upper oil pan, re
move the crankshaft position sensor (POS).
• Be careful not to damage sensor edges.
• Do not spill engine oil or coolant on drive belt.
1. Remove the engine assembly. Refer to EM-220, "Removal and Installation"
.
2. Remove the oil pan lower and upper. Refer to EM-157, "Removal and Installation (Upper Oil Pan)"
.
3. Remove the front timing chain case. Refer to EM-174, "Removal and Installation"
.
4. Remove the primary and secondary timing chains. Refer to EM-182, "Removal and Installation"
.
5. Remove the rear timing chain case. CAUTION:
• Do not remove the plate metal cover for the oil passage.
• After removing the chain case, do not apply any load to
the case that might bend it.
a. Loosen and remove the rear timing chain case bolts in the order as shown.
b. Cut the sealant using Tool (A) and remove the rear timing chain case.
CAUTION:
• Be careful not to damage the mating surface.
• Do not insert a screwdriver or similar tool, this will dam-
age the mating surfaces.
c. In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied. Use
a plastic hammer to slide (2) the cutter by tapping on the side.
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Tool number : KV10111100 (J-37228)
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Revision: November 20132014 Altima NAM