NISSAN 350Z 2007 Z33 Engine Mechanical Repair Manual

FRONT TIMING CHAIN CASE
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c. Install valve timing control cover with new gasket to front timing
chain case.
CAUTION:

Do not face the magnet retarder side down to prevent
magnet retarder from dropping.

Check the mating surface of magnet retarder and the
drum of exhaust side camshaft sprocket for foreign mate-
rials.

Align the center of both shaft holes of the shaft and the
intake side camshaft sprocket, and then insert them.

Be careful not to drop the seal ring from the shaft groove.

When setting the valve timing control cover in position by hand, if valve timing control cover is
not contacting with the front timing chain case, the dowel pin of magnet retarder may not be
aligned with the dowel pin holes of cover. In this case, return to step “b”.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.
CAUTION:
Completely tighten the mounting bolts with the seat surface
of valve timing control cover contacting with front timing
chain case.

After all bolt are tightened, tighten No.1 bolt to the specified torque again.
8. Install crankshaft pulley as follows:
a. Fix crankshaft using ring gear stopper [SST: KV10118600 (J-48641)].
b. 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).
c. Tighten crankshaft pulley bolt.
d. Place a paint mark (A) on crankshaft pulley (2) aligning with the
angle mark (C) on crankshaft pulley bolt (1). Tighten the bolt 90
degrees (one marks) (b).
9. Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.
10. Install in the reverse order of removal after this step.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluid 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-11, "
RECOMMENDED FLUIDS AND LUBRICANTS" . : 11.3 N·m (1.2 kg-m, 8 ft-lb)
A : Right bank
B : Left bank
C : Dowel pin hole
PBIC3561E
PBIC4965E
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC4975E

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FRONT TIMING CHAIN CASE
Revision: 2006 November2007 350Z

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 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.Items 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

TIMING CHAIN
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TIMING CHAINPFP:13028
Removal and InstallationNBS0000S
PBIC5165E

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TIMING CHAIN
Revision: 2006 November2007 350Z

Refer to GI-11, "Components" for symbol marks in the figure.
NOTE:

This section describes procedures for removing/installing front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

To remove/install front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to EM-44, "
FRONT TIMING CHAIN CASE" .
REMOVAL
1. Remove engine assembly from the vehicle, and separate front suspension member and transmission
from engine. Refer to EM-101, "
ENGINE ASSEMBLY" .
2. Lift the engine with hoist and mount it onto widely use engine stand. Refer to EM-108, "
DISASSEMBLY" .
3. Remove intake manifold collector. Refer to EM-17, "
INTAKE MANIFOLD COLLECTOR" .
4. Remove power steering oil pump bracket. Refer to PS-28, "
POWER STEERING OIL PUMP" .
5. Remove alternator. Refer to SC-20, "
CHARGING SYSTEM" .
6. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
7. Remove left and right valve timing control covers (including magnet retarder and cover) with the following
procedure.
a. Loosen mounting bolts in reverse order as shown in the figure.
1.Timing chain tensioner (secondary)
(left bank)2. Internal chain guide 3.Timing chain tensioner (secondary)
(right bank)
4. Camshaft sprocket (EXH) 5. Timing chain (secondary) 6. Timing chain (primary)
7. Camshaft sprocket (INT) 8. Slack guide 9. Timing chain tensioner (primary)
10. Crankshaft sprocket 11. Camshaft sprocket (INT) 12. Timing chain (secondary)
13. Camshaft sprocket (EXH) 14. O-ring 15. Rear timing chain case
16. O-ring 17. O-ring 18. O-ring
19. Bracket 20. Bracket 21. Front timing chain case
22.Valve timing control cover gasket
(LH)23. Valve timing control cover (LH) 24. O-ring
25. Crankshaft pulley bolt 26. Crankshaft pulley 27. Front oil seal
28. Idler pulley 29. O-ring 30. Oil level gauge guide
31. Drive belt auto-tensioner 32. Idler pulley 33. Idler pulley bracket
34. Alternator bracket 35. Water outlet (front) 36.Valve timing control cover gasket
(RH)
37. Valve timing control cover (RH) 38. Power steering oil pump bracket
A. Refer to EM-60
A : Right bank
B : Left bank
C : Dowel pin hole
PBIC4965E

TIMING CHAIN
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Revision: 2006 November2007 350Z
b. Shaft is engaged with intake side camshaft sprocket center hole
on inside. Pull straight out so as not to tilt until the joint is disen-
gaged.

The mating surface of magnet retarder may be fitted with the
exhaust side camshaft sprocket via the engine oil. Open valve
timing control cover carefully.

If the mating surface of magnet retarder is fitted with the cam-
shaft sprocket, open the cover within the range that the load is
not applied to the harness. And then, remove it so as to pre-
vent magnet retarder from dropping.
CAUTION:

Be careful not to damage magnet retarder.

When carrying valve timing control cover, face the magnet retarder side up to prevent the cover
from falling from magnet retarder.

Do not remove magnet retarder from valve timing control cover. (Disassembly prohibited parts)
8. Remove rocker covers (right and left banks). Refer to EM-40, "
ROCKER COVER" .
9. Obtain No. 1 cylinder at TDC of its compression stroke as follows:
a. Rotate crankshaft pulley clockwise to align timing mark (grooved
line without color) with timing indicator.
b. Make sure that intake and exhaust cam noses on No. 1 cylinder
(engine front side of right bank) are located as shown in the fig-
ure.

If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.
10. Remove crankshaft pulley as follows:
a. Remove rear cover plate and set ring gear stopper [SST:
KV10118600 (J-48641)] (A) as shown in the figure.
: Timing mark (grooved line without color)
PBIC3561E
PBIC4966E
SEM418G
1 : Oil pan
2 : Fly wheel (M/T models) or drive plate (A/T models)
: Vehicle front
PBIC5051E

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TIMING CHAIN
Revision: 2006 November2007 350Z
b. Loosen crankshaft pulley bolt and rotate bolt seating surface at
10 mm (0.39 in) from its original position.
CAUTION:
Do not remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.
c. Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.
11. Remove oil pans (upper and lower). Refer to EM-26, "
OIL PAN AND OIL STRAINER" .
12. Remove front timing chain case as follows:
a. Loosen mounting bolts in reverse order as shown in the figure.
b. Insert suitable tool into the notch at the top of the front timing
chain case as shown (1).
c. Pry off case by moving the tool as shown (2).

U s e s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ] t o c u t l i q u i d g a s -
ket for removal.
CAUTION:

Do not use screwdriver or something similar.

After removal, handle front timing chain case carefully so
it does not tilt, cant, or warp under a load.
PBIC1103E
EMQ0477D
PBIC4968E
SEM156F

TIMING CHAIN
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13. Remove O-ring (1) from rear timing chain case.
14. Remove front oil seal from front timing chain case using suitable
tool.

Use screwdriver for removal.
CAUTION:
Be careful not to damage front timing chain case.
15. Remove timing chain tensioner (primary) as follows:
a. Remove lower mounting bolt.
b. Loosen upper mounting bolt slowly, and then turn timing chain
tensioner (primary) on the mounting bolt so that plunger is fully
expanded.
NOTE:
Even if plunger is fully expanded, it is not dropped from the body
of timing chain tensioner (primary).
c. Remove upper mounting bolt, and then remove timing chain ten-
sioner (primary).
A : Right bank
B : Left bank
PBIC5041E
PBIC4969E
PBIC3562E

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TIMING CHAIN
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16. Remove internal chain guide (1) and slack guide (2).
17. Remove timing chain (primary) and crankshaft sprocket.
CAUTION:
After removing timing chain (primary), do not turn crankshaft and camshaft separately, or valves
will strike the piston heads.
18. Remove timing chain (secondary) and camshaft sprockets as follows:
a. Attach suitable stopper pin to the right and left timing chain ten-
sioners (secondary).
NOTE:

Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.

For removal of timing chain tensioner (secondary), refer to
EM-72, "
CAMSHAFT" . [Removing camshaft bracket (No. 1)
is required.]
b. Remove intake and exhaust camshaft sprocket bolts.

Secure the hexagonal portion of camshaft using wrench to
loosen mounting bolts.
CAUTION:
Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.
c. Remove timing chain (secondary) together with camshaft sprockets.
CAUTION:

Handle carefully to avoid any shock to camshaft sprocket.
PBIC4977E
PBIC3564E
KBIA4379J

TIMING CHAIN
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Do not disassemble. (Do not loosen bolts “A” and “B” as
shown in the figure.)
NOTE:
Camshaft sprocket (INT) is two-for-one structure of primary and
secondary sprockets.
19. Remove water pump. Refer to CO-23, "
WATER PUMP" .
20. Remove rear timing chain case as follows:
a. Loosen and remove mounting bolts in reverse order as shown in
the figure.
b . C u t l i q u i d g a s k e t u s i n g s e a l c u t t e r [ S S T: K V 1 0 1111 0 0 ( J 3 7 2 2 8 ) ]
and remove rear timing chain case.
CAUTION:

Do not remove plate metal cover of oil passage.

After removal, handle rear timing chain case carefully so
it does not tilt, cant, or warp under a load.
21. Remove O-rings from cylinder block.
22. Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.
a. Remove camshaft brackets (No. 1). Refer to EM-72, "
REMOVAL" .
PBIC3565E
PBIC4976E
KBIA1307E
PBIC0788E

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TIMING CHAIN
Revision: 2006 November2007 350Z
b. Remove timing chain tensioners (secondary) with stopper pin
attached.
23. Use scraper to remove all traces of old liquid gasket from front
and rear timing chain cases, and opposite mating surfaces.

Remove old liquid gasket from bolt hole and thread.
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.
INSTALLATION
NOTE:

The below figure shows the relationship between the mating mark on each timing chain and that on the
corresponding sprocket, with the components installed.
SEM430G
PBIC4970E
PBIC2084E
PBIC0282E