NISSAN 350Z 2007 Z33 Engine Mechanical Repair Manual

TIMING CHAIN
EM-61
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Revision: 2006 November2007 350Z

In this figure, the drum of exhaust side camshaft sprocket has been omitted.
1. Install timing chain tensioners (secondary) to cylinder head as follows if removed. Refer to EM-77,
"INSTALLATION" .
a. Install timing chain tensioners (secondary) with stopper pin attached and new O-ring.
b. Install camshaft brackets (No. 1). Refer to EM-77, "
INSTALLATION" .
2. Measure difference in levels between front end faces of cam-
shaft bracket (No.1) and cylinder head.

Measure two positions (Both intake and exhaust side) for a
single bank.

If the measured value is out of the standard, re-install cam-
shaft bracket (No.1).
3. Install rear timing chain case as follows:
1. Internal chain guide 2. Camshaft sprocket (INT) 3. Timing chain (secondary)
4. Camshaft sprocket (EXH) 5. Timing chain tensioner (primary) 6. Slack guide
7. Timing chain (primary) 8. Crankshaft sprocket 9. Water pump
10. Timing chain tensioner (secondary)
A. Mating mark [punched (back side)] B. Mating mark (yellow link) C. Mating mark (punched)
D. Mating mark (orange link) E. Mating mark (notched) F. Crankshaft key
Standard : −0.14 to 0.14 mm (−0.0055 to 0.0055 in)
PBIC5036E
EMQ0044D

EM-62
TIMING CHAIN
Revision: 2006 November2007 350Z
a. Install new O-rings onto cylinder block.
b. Apply liquid gasket with tube presser [SST: WS39930000 ( — )] to rear timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-45, "
RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
CAUTION:

For “A” in the figure, completely wipe out liquid gasket extended on a portion touching at
engine coolant.

Apply liquid gasket on installation position of water pump and cylinder head very completely.

Refer to GI-11, "Components" for symbol marks in the figure.
PBIC0788E
C. Protrusion D. Clearance 1 mm (0.04 in) E. Do not protrude in this area
F. Run along bolt hole inner side G.Protrusions at beginning and end of
gasket
h. 3.9 mm (0.154 in) i 2.7 mm (0.106 in)
PBIC4980E

TIMING CHAIN
EM-63
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Revision: 2006 November2007 350Z
c. Align rear timing chain case and water pump assembly with dowel pins (right and left) on cylinder block
and install rear timing chain case.

Make sure O-rings stay in place during installation to cylinder block.
d. Tighten mounting bolts in numerical order as shown in the fig-
ure.

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

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

If not within standard, repeat the installation procedure.
4. Install water pump with new O-rings. Refer to CO-23, "
WATER PUMP" .
5. Make sure that dowel pin (A) and crankshaft key (1) 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.
6. Install timing chains (secondary) and camshaft sprockets as follows:
CAUTION:

When replacing camshaft sprocket (EXH), replace valve timing control cover (including magnet
retarder and cover).

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)
PBIC4976E
1 : Front timing chain case
2 : Rear timing chain case
3 : Lower cylinder block
Standard
Rear timing chain case to cylinder block:
–0.24 to 0.14 mm (–0.0094 to 0.0055 in)
PBIC4981E
Camshaft dowel pin
: At cylinder head upper face side in each bank.
Crankshaft key
: At cylinder head side of right bank.
PBIC5010E

EM-64
TIMING CHAIN
Revision: 2006 November2007 350Z
a. Push plunger of timing chain tensioner (secondary) and keep it
pressed in with stopper pin.
b. Install timing chains (secondary) and camshaft sprockets.
NOTE:
Figure shows right bank (rear view).

Align the mating marks on timing chain (secondary) (orange
link) with the ones on intake and exhaust camshaft sprockets
(punched), and install them.
NOTE:

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

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

Align dowel pin hole on the small diameter side of the camshaft front end with dowel pin on the back
side of camshaft sprockets, 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 step “d”. Tightening them by hand is
enough to prevent the dislocation of dowel pins.
c. Make sure that timing chain (secondary) is not loose from each camshaft sprocket.

Make sure the mating marks (punched) (D) on each camshaft
sprocket are positioned on the mating marks (orange link) (C)
on timing chain (secondary).
NOTE:
Mating mark (punched) in the figure is for checking loose at
this step.
SEM430G
A : Camshaft sprocket (INT) back face
B : Orange link
C : Dowel groove or hole
D : Mating mark (oval)
E : Mating mark (2 oval)
F : Mating mark (circle)
G : Camshaft sprocket (EXH) back face
H : Mating mark (2 circle)
I : Timing chain (secondary)
Right bank : Use circle type (F, H)
Left bank : Use oval type (D, E)
A : Intake side
B : Exhaust side
PBIC5044E
PBIC4982E

TIMING CHAIN
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d. Tighten camshaft sprocket mounting bolts.

Secure camshaft using wrench at the hexagonal portion to
tighten mounting bolts.
e. Pull stopper pins out from timing chain tensioners (secondary).
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).
KBIA4379J
PBIC3564E
SEM929E

EM-66
TIMING CHAIN
Revision: 2006 November2007 350Z

Install timing chain (primary) so the mating mark (punched)
(B) on camshaft sprocket (INT) (1) is aligned with the yellow
link (A) on timing chain, while the mating mark (notched) (C)
on crankshaft sprocket (2) is aligned with the orange link (D)
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 (1), slack guide (2) and timing chain
tensioner (primary).
3 : Water pump
PBIC5037E
PBIC4977E

TIMING CHAIN
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CAUTION:
Do not overtighten slack guide mounting bolts. It is normal
for a gap to exist under the bolt seats when mounting bolts
are 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 sprockets and timing chain have not slipped out of alignment.
11. Install new O-ring (1) 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
A : Right bank
B : Left bank
PBIC5041E

EM-68
TIMING CHAIN
Revision: 2006 November2007 350Z

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

Using suitable drift (1), 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 front timing chain case as follows:
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 RTV Silicone Sealant or equivalent. Refer to
GI-45, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .
NOTE:
Apply liquid gasket, start and end up application at the portions
(a) shown in the figure.
b. Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
SEM715A
PBIC4971E
C: Bolt hole
D : Protrusion
e : 2.6 - 3.6 mm (0.102 - 0.142 in)
f : 3.4 - 4.4 mm (0.134 - 0.173 in)
PBIC4972E

TIMING CHAIN
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c. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.

There are two types of mounting bolts. Refer to the following
for locating bolts.
d. After all bolts are tightened, retighten them to the specified
torque in numerical order 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.
14. Install right and left valve timing control covers as follows:
a. Install new seal rings (1) in shaft grooves.
CAUTION:
When replacing seal rings, replace all rings with new one.
b. To check the joint between dowel pins and dowel pin holes,
check the looseness in the axle direction by pushing the mating
surface of magnet retarder (A) at several places and the circum-
ferential looseness (between dowel pins and dowel pin holes) by
twisting in the circumferential direction.
CAUTION:
Always perform this procedure when removing because the
gap between dowel pins and dowel pin holes may not be
caused on purpose.M8 bolts : 1, 2, 3, 4, 5, 6, 7
: 55.0 N·m (5.6 kg-m, 41 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
1 : Front timing chain case
2 : Rear timing chain case
3 : Lower cylinder block
Standard
Front timing chain case to rear timing chain case:
–0.14 to 0.14 mm (–0.005 to 0.0055 in)
PBIC4968E
PBIC4981E
A : Left bank
PBIC4973E
B : Moves slightly
C : Not shaken
PBIC4974E

EM-70
TIMING CHAIN
Revision: 2006 November2007 350Z
c. Install valve timing control cover 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 bolts are tightened, tighten No.1 bolt to the specified torque again.
15. Install oil pans (upper and lower). Refer to EM-26, "
OIL PAN AND OIL STRAINER" .
16. Install rocker covers (right and left banks). Refer to EM-40, "
ROCKER COVER" .
17. 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).
18. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns
smoothly.
19. Install in the reverse order of removal after this step.: 11.3 N·m (1.2 kg-m, 8 ft-lb)
A : Right bank
B : Left bank
C : Dowel pin hole
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
PBIC3561E
PBIC4965E
PBIC4975E