Infiniti FX35 / FX45. Manual - part 681

 

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Infiniti FX35 / FX45. Manual - part 681

 

 

CYLINDER BLOCK

EM-241

< SERVICE INFORMATION >

[VK45DE]

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CYLINDER BLOCK

Component

INFOID:0000000001325803

1.

Knock sensor sub harness

2.

Knock sensor 

3.

Cylinder block

4.

Cover

5.

Main bearing

6.

Top ring

7.

Second ring

8.

Oil ring

9.

Crankshaft key

10.

Piston

11.

Connecting rod

12.

Snap ring

13.

Piston pin

14.

Connecting rod bearing

15.

Connecting rod bearing cap

16.

Block heater protector

17.

Connector cap

18.

Cylinder block heater

19.

Gasket

20.

Main bearing cap

21.

Thrust bearing

PBIC4691E

EM-242

< SERVICE INFORMATION >

[VK45DE]

CYLINDER BLOCK

• Refer to 

GI-8, "Component"

 for symbols in the figure.

Disassembly and Assembly

INFOID:0000000001325804

DISASSEMBLY

NOTE:
Explained here is how to disassemble with engine stand supporting transmission surface. When using differ-
ent type of engine stand, note with difference in steps and etc.

1.

Remove engine assembly from vehicle, and separate front suspension member, transmission and front
final drive from engine. Refer to 

EM-237, "Component"

.

2.

Remove the parts that may restrict installation of engine to widely use engine stand.
NOTE:
The procedure is described assuming that you use widely use engine holding the surface, to which trans-
mission is installed.

a.

Remove drive plate.
• Holding ring gear with ring gear stopper (SST).
• Loosen mounting bolts diagonally order.

CAUTION:

• Do not disassemble drive plate.
• Do not place drive plate with signal plate facing down.
• When handling signal plate, take care not to damage or

scratch it. 

• Handle signal plate in a manner that prevents it from

becoming magnetized.

b.

Remove engine rear plate.

3.

Lift engine with hoist to install it onto widely use engine stand.

CAUTION:

Use engine stand that has a load capacity [approximately 240 kg (529 lb) or more] large enough for
supporting the engine weight. 
• If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the poten-

tial risk of overturning stand.

- Intake manifolds (upper and lower): Refer to 

EM-175, "Component"

- Exhaust manifold: Refer to 

EM-179, "Component"

.

- Fuel tube and fuel injector assembly: Refer to 

EM-190, "Component"

.

22.

Main bearing

23.

Rear plate

24.

Crankshaft

25.

Pilot converter

26.

Drive plate

27.

Thrust bearing

28.

Side bolt

29.

Reinforcement plate

30.

Crankshaft position sensor (POS)

31.

O-ring

32.

Rear oil seal

33.

Rear oil seal retainer

A.

Refererence: Installed on transmis-
sion

B.

Refer to 

EM-242

C.

Right bank

D.

Cylinder block heater (For Canada)

E.

Chamfered

F.

Crankshaft side

: Engine front

PBIC1656E

PBIC2367E

CYLINDER BLOCK

EM-243

< SERVICE INFORMATION >

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- A/C compressor: Refer to 

ATC-121, "Component"

.

- Ignition coil: Refer to 

EM-187, "Component"

.

- Rocker cover: Refer to 

EM-196, "Component"

.

- Other removable brackets
NOTE:
The figure shows an example of widely use engine stand that
can hold mating surface of transmission with drive plate and rear
plate removed.

CAUTION:

Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.

4.

Drain engine oil. Refer to 

LU-24, "Changing Engine Oil"

.

5.

Drain engine coolant from inside engine by removing water
drain plugs “B” as shown in the figure.

6.

Remove the following parts and related parts (The parts listed in step 3 are not included here).
• Oil pan and oil strainer: Refer to 

EM-183, "Component"

.

• Crankshaft pulley, front cover and timing chain: Refer to 

EM-199, "Component"

.

• Camshaft: Refer to 

EM-211, "Component"

.

• Cylinder head: Refer to 

EM-226, "On-Vehicle Service"

.

7.

Remove knock sensor.

CAUTION:

Carefully handle sensor, avoiding shocks.

8.

Remove piston and connecting rod assembly as follows:
• Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to

EM-256, "Inspection After Disassembly"

.

a.

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

b.

Remove connecting rod bearing cap.

c.

Using hammer handle or similar tool, push piston and connect-
ing rod assembly out to the cylinder head side. 

CAUTION:

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

9.

Remove connecting rod bearings from connecting rod and connecting rod bearing cap.

CAUTION:

Identify installation positions, and store them without mixing them up.

PBIC0085E

PBIC1265E

PBIC0086E

EM-244

< SERVICE INFORMATION >

[VK45DE]

CYLINDER BLOCK

10. Remove piston rings from piston. 

• Before removing the piston rings, check the piston ring side clearance. Refer to 

EM-256, "Inspection

After Disassembly"

.

• Use piston ring expander (commercial service tool).

CAUTION:

• When removing piston rings, be careful not to damage

piston.

• Be careful not to damage piston rings by expanding them

excessively.

11. Remove piston from connecting rod as follows: 
a.

Using snap ring pliers, remove the snap rings.

b.

Heat piston to 60 to 70

°

C (140 to 158

°

F) with industrial use drier

or equivalent.

c.

Push out piston pin with stick of outer diameter approximately 20
mm (0.8 in).

12. Remove rear oil seal retainer from cylinder block.

• Insert screwdriver or similar tool between rear end of crankshaft counter weight and rear oil seal

retainer, and separate liquid gasket to remove.

CAUTION:

Be careful not to damage the mating surfaces.

13. Using screwdriver or similar tool, and lever off rear oil seal from rear oil seal retainer.
14. Remove main bearing cap as follows: 

PBIC0087E

PBIC0088E

PBIC0089E

EMM0072D

 

 

 

 

 

 

 

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