2007 NISSAN 350Z check engine

EM-114
CYLINDER BLOCK
Revision: 2006 November2007 350Z
e. Turn lower cylinder block bolts (No.1 to 16) 90 degrees clock-
wise (angle tightening).
CAUTION:
Use the angle wrench [SST: KV10112100 (BT8653-A)] (A) to
check tightening angle. Do not make judgment by visual
inspection.

After installing lower cylinder block bolts, make sure that crankshaft can be rotated smoothly by hand.

Check the crankshaft end play. Refer to EM-125, "CRANKSHAFT END PLAY" .
9. Install piston to connecting rod as follows:
a. Using snap ring pliers, install new snap ring to the groove of piston rear side.

Insert it fully into groove to install.
b. Install piston to connecting rod.

Using industrial use drier or similar tool, heat piston until piston pin can be pushed in by hand without
excess force [approx. 60 to 70°C (140 to 158°F)]. From the front to the rear, insert piston pin into piston
and connecting rod.

Assemble so that the front mark on the piston head and the
cylinder number on connecting rod are positioned as shown in
the figure.
c. Install new snap ring to the groove of the piston front side.

Insert it fully into groove to install.

After installing, make sure that connecting rod moves smoothly.
10. Using piston ring expander (commercial service tool), install pis-
ton rings.
CAUTION:

When installing piston rings, be careful not to damage
piston.

Be careful not to damage piston rings by expending them
excessively.
PBIC5018E
A : Piston grade number
B : Front mark
C : Pin grade number
D : Cylinder number
E : Front mark
: Engine front
PBIC5049E
PBIC0087E

CYLINDER BLOCK
EM-115
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Revision: 2006 November2007 350Z

If there is stamped mark on ring, mount it with marked side
up.

Mount second ring with cut out side down.

Position each ring with the gap as shown in the figure refer-
ring to the piston front mark.

Check the piston ring side clearance. Refer to EM-126, "PISTON RING SIDE CLEARANCE" .
11. Install connecting rod bearings to connecting rod and connecting rod bearing cap.

Before installing connecting rod bearings, apply engine oil to the bearing surface (inside). Do not apply
engine oil to the back surface, but thoroughly clean it.

When installing, align connecting rod bearing stopper protru-
sion with cutout of connecting rods and connecting rod bear-
ing caps to install.

Ensure the oil hole on connecting rod and that on the corre-
sponding bearing are aligned.
12. Install piston and connecting rod assembly to crankshaft.

Position crankshaft pin corresponding to connecting rod to be installed onto the bottom dead center.

Apply engine oil sufficiently to the cylinder bore, piston and crankshaft pin journal.

Match the cylinder position with the cylinder number on connecting rod to install.

Be sure that front mark on piston head is facing front of engine.

Using piston ring compressor [SST: EM03470000 (J8037)] (A)
or suitable tool, install piston with the front mark on the piston
head facing the front of engine.
CAUTION:
Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.Stamped mark:
To p r i n g ( A ) : 1 N
Second ring (B) : 2N
PBIC5019E
PBIC0808E
PBIC2067E
PBIC5020E

EM-116
CYLINDER BLOCK
Revision: 2006 November2007 350Z
13. Install connecting rod bearing cap.

Match the stamped cylinder number marks on connecting rod
with those on connecting rod bearing cap to install.

Be sure that front mark (H) on connecting rod bearing cap is
facing front of engine.
14. Inspect the outer diameter of connecting rod bolt. Refer to EM-133, "
LOWER CYLINDER BLOCK BOLT
OUTER DIAMETER" .
15. Tighten connecting rod bolts as follows:
a. Apply engine oil to the threads and seats of connecting rod bolts.
b. Tighten connecting rod bolts.
c. Completely loosen connecting rod bolts.
d. Tighten connecting rod bolts.
e. Then turn connecting rod bolts 90 degrees clockwise (angle
tightening).
CAUTION:
Use angle wrench [SST: KV10112100 (BT8653-A)] (A) to check tightening angle. Do not make judgment
by visual inspection.

After tightening connecting rod bolts, make sure that crankshaft rotates smoothly.

Check the connecting rod side clearance. Refer to EM-125, "CONNECTING ROD SIDE CLEARANCE" .
16. Install baffle plate.
17. Install new rear oil seal. Refer to EM-86, "
OIL SEAL" .
18. Install pilot bushing (M/T models) or pilot converter (A/T mod-
els).

With drift of the following outer diameter, press-fit as far as it
will go.
A: Sample code
B : Bearing stopper groove
C : Small-end diameter grade
D : Big end diameter grade
E : Weight grade
F : Cylinder No.
G : Management code
I : Management code
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
: 0 N·m (0 kg-m, 0 ft-lb)
: 24.5 N·m (2.5 kg-m, 18 ft-lb)
Pilot bushing : Approx. 17 mm (0.67 in)
Pilot converter : Approx. 33 mm (1.30 in)
PBIC5046E
PBIC5021E
PBIC2947E

CYLINDER BLOCK
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Revision: 2006 November2007 350Z
How to Select Piston and Bearing NBS00014
DESCRIPTION
*: For the service parts, the grade for fitting cannot be selected between piston pin and connecting rod. (Only “0” grade is available.) The
information at the shipment from the plant is described as a reference.

The identification grade stamped on each part is the grade for the dimension measured in new condition.
This grade cannot apply to reused parts.

For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the
measurement with the values of each selection table.

For details of the measurement method of each part, the reuse standards and the selection method of the
selective fitting parts, refer to the text.
HOW TO SELECT PISTON
When New Cylinder Block is Used
Check the cylinder bore grade (“1”, “2” or “3”) on rear side of cylinder
block, and select piston of the same grade.
NOTE:
Piston is available with piston pin as a set for the service part. (Only
“0” grade piston pin is available.)
When Cylinder Block is Reused
1. Measure the cylinder bore inner diameter. Refer to EM-129, "Cylinder Bore Inner Diameter" .
Selection points Selection parts Selection items Selection methods
Between cylinder block to
crankshaftMain bearingMain bearing grade
(bearing thickness)Determined by match of cylin-
der block bearing housing
grade (inner diameter of hous-
ing) and crankshaft journal
grade (outer diameter of jour-
nal)
Between crankshaft to connect-
ing rodConnecting rod bearingConnecting rod bearing grade
(bearing thickness)Combining service grades for
connecting rod big end diame-
ter and crankshaft pin outer
diameter determine connecting
rod bearing selection.
Between cylinder block to pis-
tonPiston and piston pin assembly
(Piston is available together
with piston pin as assembly.)Piston grade
(piston skirt diameter)Piston grade = cylinder bore
grade (inner diameter of bore)
Between piston to connecting
rod*———
A : Bearing housing grade No. 1
B : Bearing housing grade No. 2
C : Bearing housing grade No. 3
D : Bearing housing grade No. 4
E : Cylinder bore grade No. 1
F : Cylinder bore grade No. 2
G : Cylinder bore grade No. 3
H : Cylinder bore grade No. 4
I : Cylinder bore grade No. 5
J : Cylinder bore grade No. 6
K : Identification code
: Engine front
PBIC4995E