Infiniti G35 (V35). Manual — part 497
CYLINDER BLOCK
EM-143
C
D
E
F
G
H
I
J
K
L
M
A
EM
20. Remove main bearing beam.
21. Remove main bearing caps.
●
Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.
22. Remove crankshaft.
23. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify installation positions, and store them without mixing them up.
24. Remove oil jet.
ASSEMBLY
1.
Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use goggles to protect your eye.
2.
Install each water drain plug to cylinder block as shown in the
figure.
●
Apply thread sealant to the thread of water drain plugs.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-46, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"
●
Tighten each water drain plug as specified below.
3.
Install each plug to cylinder block as shown in the figure if
removed.
●
Apply thread sealant to the thread of plugs “D” and “E”.
Use Genuine High Strength Thread Locking Sealant or
equivalent. Refer to
●
Apply thread sealant to the thread of plug “F”.
PBIC0881E
EMQ0195D
Part
Gasket
Tightening torque
A
No
9.8 N·m (1.0 kg-m, 87 in-lb)
B
No
19.6 N·m (2.0 kg-m, 14 ft-lb)
C
No
19.6 N·m (2.0 kg-m, 14 ft-lb)
PBIC2610E
EM-144
CYLINDER BLOCK
Use Anaerobic Liquid Gasket or equivalent. Refer to
GI-46, "RECOMMENDED CHEMICAL PROD-
●
Tighten each plug as specified below.
4.
Install oil jet.
●
Insert oil jet dowel pin into cylinder block dowel pin hole, and
tighten mounting bolts.
5.
Install main bearings and thrust bearings as follows:
a.
Remove dust, dirt, and engine oil on bearing mating surfaces of cylinder block and main bearing caps.
b.
Install thrust bearings to the both sides of the No. 3 journal hous-
ing on cylinder block and main bearing cap.
●
Install thrust bearings with the oil groove facing crankshaft
arm (outside).
●
Install bearing with a projection on one end on cylinder block,
and bearing with a projection at center on cap. Align each pro-
jection with mating notch.
c.
Install main bearings paying attention to the direction.
●
Main bearing with oil hole and groove goes on cylinder block.
The one without them goes on main bearing cap.
●
Before installing main bearings, apply engine oil to the bear-
ing surface (inside). Do not apply engine oil to the back sur-
face, but thoroughly clean it.
●
When installing, align main bearing stopper protrusion to cut-
out of cylinder block and main bearing caps.
●
Ensure the oil holes on cylinder block and those on the corre-
sponding bearing are aligned.
6.
Install crankshaft to cylinder block.
●
While turning crankshaft by hand, check that it turns smoothly.
7.
Install main bearing cap.
Part
Gasket
Tightening torque
D
Yes
12.3 N·m (1.3 kg-m, 9 ft-lb)
E
Yes
62.0 N·m (6.3 kg-m, 46 ft-lb)
F
Yes
62.0 N·m (6.3 kg-m, 46 ft-lb)
PBIC0898E
PBIC0807E
SEM175F
CYLINDER BLOCK
EM-145
C
D
E
F
G
H
I
J
K
L
M
A
EM
●
Main bearing caps are identified by identification mark cast on
them. For installation, face front mark to front side.
NOTE:
Main bearing cap cannot be replaced as a single part, because it
is machined together with cylinder block.
8.
Install main bearing beam.
●
Install main bearing beam with front mark facing downward (oil pan side).
●
Install main bearing beam with front mark facing front of
engine.
9.
Inspect outer diameter of main bearing cap bolt. Refer to
EM-164, "MAIN BEARING CAP BOLT OUTER
10. Tighten main bearing cap bolt as follows:
a.
Apply new engine oil to threads and seat surfaces of mounting bolts.
b.
Tighten bolts in numerical order as shown in the figure in several
different steps.
c.
Turn all bolts another 90 to 95 degrees clockwise [Target: 90
degrees (Angle tightening)].
CAUTION:
Use angle wrench [SST: KV10112100 (BT8653-A)] to check
tightening angle. Do not make judgment by visual inspec-
tion.
●
After installing mounting bolts, make sure that crankshaft can
be rotated smoothly by hand.
●
Check crankshaft end play. Refer to
11. 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.
SEM456G
PBIC0881E
: 32.3 - 38.3 N·m (3.3 - 3.9 kg-m, 24 - 28 ft-lb)
PBIC1800E
PBIC0921E
EM-146
CYLINDER BLOCK
●
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 pis-
ton 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.
NOTE:
Figure shows the piston A/T models. The front marks of M/T
models are 2 punched.
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.
12. Using a piston ring expander (commercial service tool), install
piston rings.
CAUTION:
●
When installing piston rings, be careful not to damage
piston.
●
Be careful not to damage piston rings by expending them
excessively.
●
If there is stamped mark on ring, mount it with marked side
up.
NOTE:
If there is no stamp on ring except second ring, no specific ori-
entation is required for installation.
●
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-157, "PISTON RING SIDE CLEARANCE"
.
13. Install connecting rod bearings to connecting rod and connecting rod 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.
SEM838F
PBIC0087E
Stamped mark:
M/T models
Top ring
: —
Second ring
: —
A/T models
Top ring
: —
Second ring
: R
PBIC3595E
PBIC0808E
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