Infiniti G35 (V35) Sedan. Manual - part 630

CYLINDER BLOCK

EM-119

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• Apply a continuous bead of liquid gasket with the tube presser

[SST: WS39930000 (

—

)] to lower cylinder block as shown

in the figure.

 Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-15, "Recommended Chemical Products and Sealants"

.

7.

Install lower cylinder block bolts in numerical order as shown in
the figure as follows:

a.

Inspect the outer diameter of lower cylinder block bolt. Refer to

EM-150, "Main Bearing"

.

b.

Apply new engine oil to threads and seat surfaces of lower cylin-
der block bolts.

c.

Tighten lower cylinder block bolts (No. 1 to 16) in numerical
order as shown in the figure.
NOTE:
Use TORX socket (size E14) for bolts No. 1 to 16.

d.

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.

e.

Completely loosen lower cylinder block bolts (No. 1 to 16).

CAUTION:

In step “e”, loosen lower cylinder block bolts (No. 1 to 16) in
reverse order of that indicated in the figure.

f.

Repeat step c.

g.

Repeat step d.

h.

Tighten lower cylinder block bolt (No. 17 to 26).

• After installing lower cylinder block bolts, make sure that crankshaft can be rotated smoothly by hand.
• Check the crankshaft end play. Refer to 

EM-146, "Cylinder Block"

.

8.

Install piston to connecting rod as follows: 

a.

Using a 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 an 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.

a

: 3.5 - 4.5 mm (0.138 - 0.177 in) dia

B

: Apply to end

JPBIA0201ZZ

: Engine front

: 35.3 N·m (3.6 kg-m, 26 ft-lb)

JPBIA0197ZZ

: 0 N·m (0 kg-m, 0 ft-lb)

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

JPBIA0202ZZ

EM-120

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

• 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.

9.

Using a piston ring expander (commercial service tool) (A),
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.

• Position each ring with the gap as shown in the figure referring

to the piston front mark (D).

• Check the piston ring side clearance. Refer to 

EM-146, "Cylinder Block"

.

10. Install connecting rod bearings to connecting rod and connecting rod bearing cap.

CAUTION:

Be careful not to drop connecting rod bearing, and to scratch the surface.
• 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. 

A

: Piston grade number

B

: Front mark

C

: Pin grade number

D

: Cylinder number

E

: Front mark

: Engine front

JPBIA0203ZZ

JPBIA0194ZZ

Stamped mark:

Top ring (A)

: 1 N

Second ring (B)

: 2 N

JPBIA0263ZZ

a

: 90 degrees

b

: 45 degrees

C

: Top ring gap

E

: Oil ring upper or lower rail gap (either of them)

F

: Second ring and oil ring spacer gap

JPBIA0205ZZ

CYLINDER BLOCK

EM-121

< DISASSEMBLY AND ASSEMBLY >

C

D

E

F

G

H

I

J

K

L

M

A

EM

N

P

O

• When installing, align connecting rod bearing stopper protru-

sion (B) with cutout (C) of connecting rods and connecting rod
bearing caps to install. 

• Ensure the oil hole (A) on connecting rod and that on the cor-

responding bearing are aligned. 

11. 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 crown is facing front of engine.
• Using a piston ring compressor [SST: EM03470000 (J8037)]

(A) or suitable tool, install piston with the front mark on the pis-
ton crown facing the front of the engine.

CAUTION:

Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod big
end.

12. 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 the engine.

13. Tighten connecting rod bolt as follows:
a.

Inspect the outer diameter of connecting rod bolt. Refer to 

EM-146, "Cylinder Block"

.

b.

Apply engine oil to the threads and seats of connecting rod bolts. 

c.

Tighten connecting rod bolts.

d.

Completely loosen connecting rod bolts.

e.

Tighten connecting rod bolts.

JPBIA0206ZZ

JPBIA0207ZZ

A

:  Sample  codes

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)

JPBIA0208ZZ

EM-122

< DISASSEMBLY AND ASSEMBLY >

CYLINDER BLOCK

f.

Then turn connecting rod bolts 90 degrees clockwise (angle
tightening).

CAUTION:

Always use the angle wrench [SST: KV10112100 (BT8653-
A)] (A). Avoid tightening based on visual check alone.
• After tightening connecting rod bolts, make sure that crank-

shaft rotates smoothly.

• Check the connecting rod side clearance. Refer to 

EM-146,

"Cylinder Block"

.

14. Install baffle plate.
15. Install new rear oil seal. Refer to 

EM-75, "REAR OIL SEAL : Removal and Installation"

.

• Apply new engine oil to both oil seal lip and dust seal lip.

16. Install pilot converter (A/T models) or pilot bushing (M/T mod-

els).
• With a drift of the following outer diameter, press-fit as far as it

will go.

• Press-fit pilot converter with its chamfer facing crankshaft as

shown in the figure. (A/T models)

• Press-fit pilot bushing (1) as the dimension in the figure. (M/T

models)

JPBIA0209ZZ

Pilot bushing

: Approx. 17 mm (0.67 in)

Pilot converter

: Approx. 33 mm (1.30 in)

PBIC2947E

: Crankshaft side

JPBIA0210ZZ

A

: Crankshaft (rear end surface)

b

: 10.20 – 10.85 mm (0.402 – 0.427 in)
[Target: 10.20 mm (0.402 in)]

JPBIA0415ZZ