Nissan Quest E52. Manual - part 589

CYLINDER BLOCK

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< UNIT DISASSEMBLY AND ASSEMBLY >

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Disassembly and Assembly

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DISASSEMBLY

1.

Remove the following parts:
• Intake manifold collector: Refer to 

EM-28, "Exploded View"

.

• Intake manifold: Refer to 

EM-31, "Exploded View"

.

• Oil pans (lower and upper): Refer to 

EM-38, "Exploded View"

.

• Front and rear timing chain case: Refer to 

EM-66, "Exploded View"

.

• Cylinder head: Refer to 

EM-93, "Exploded View"

.

2.

Remove knock sensor.

CAUTION:

Carefully handle sensor avoiding shocks.

3.

Remove rear oil seal retainer.
• Remove by inserting screwdriver between main bearing cap and rear oil seal retainer.

CAUTION:

If rear oil seal retainer is removed, replace it with new one.
NOTE:
Regard both rear oil seal and retainer as an assembly.

4.

Remove baffle plate from main bearing beam.

5.

Remove piston and connecting rod assembly with the following procedure:
• Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to

EM-113, "Inspection"

.

CAUTION:

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

a.

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

b.

Remove connecting rod bearing cap.

10. Crankshaft key

11. Thrust bearing (lower)

12. Main bearing (lower)

13. Main bearing cap

14. Main bearing cap bolt

15. Main bearing beam

16. Baffle plate

17. Connecting rod bolt

18. Connecting rod bearing cap

19. Connecting rod bearing

20. Connecting rod

21. Snap ring

22. Piston pin

23. Piston

24. Oil ring

25. Second ring

26. Top ring

27. Pilot converter

28. Oil jet

29. Gasket (for Canada)

30. Cylinder block heater (for Canada)

A.

Crankshaft side

B.

Chamfered

C.

Comply with the installation proce-
dure when tightening. Refer to 

EM-

105

D.

Front mark

 : Always replace after every disassembly.

 : N·m (kg-m, ft-lb)

 : N·m (kg-m, in-lb)

 : Should be lubricated with oil.

 : Sealing point

 : Select with proper thickness.

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CYLINDER BLOCK

c.

Using a 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.

6.

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

CAUTION:

• Be careful not to drop connecting rod bearing, and to scratch the surface.
• Identify installation positions, and store them without mixing them up.

7.

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

EM-113, "Inspection"

.

• Use a piston ring expander (commercial service tool) (A).

CAUTION:

• When removing piston rings, be careful not to damage

piston.

• Be careful not to damage piston rings by expanding them

excessively.

8.

Remove piston from connecting rod as follows: 

a.

Using a snap ring pliers (A), remove snap rings.

b.

Heat piston to 60 to 70

°

C (140 to 158

°

F) with an industrial use

drier (A) or equivalent.

EMQ0191D

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CYLINDER BLOCK

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c.

Push out piston pin with stick of outer diameter approximately 20
mm (0.79 in).

9.

Remove main bearing cap bolts.
NOTE:
• Before loosening main bearing cap bolts, measure the crankshaft end play. Refer to 

EM-113, "Inspec-

tion"

.

• Loosen main bearing cap bolts in the reverse order shown in

the figure in several different steps.

10. Remove main bearing beam.

11. Remove main bearing caps.

CAUTION:

Be careful not to drop main bearing, and to scratch the sur-
face.
• Using main bearing cap bolts, remove main bearing cap while

shaking it back-and-forth.

12. Remove crankshaft.

13. Remove main bearings and thrust bearings from cylinder block and main bearing caps.

CAUTION:

• Be careful not to drop main bearing, and to scratch the surface.
• Identify installation positions, and store them without mixing them up.

14. Remove oil jet.

ASSEMBLY

PBIC0262E

: Engine front

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PBIC0881E

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CYLINDER BLOCK

CAUTION:

Do not reuse washers.
1.

Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.

CAUTION:

Use a goggles to protect your eye.

2.

Install each plug to cylinder block as shown in the figure.

CAUTION:

Do not reuse washers.
• Apply sealant to the thread of water drain plug (A).

Use Anaerobic Liquid Gasket or equivalent. Refer to 

GI-

22, "Recommended Chemical Products and Sealants"

.

NOTE:
For Canada, water drain plug (A) in the figure is not water
drain plug but block heater. Refer to 

EM-104, "Exploded

View"

.

• Apply sealant to the thread of connector bolt (D).

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

• Apply sealant to the thread of plug (C).

Use genuine high strength thread locking sealant or
equivalent. Refer to 

GI-22, "Recommended Chemical

Products and Sealants"

.

• Replace washers with new one.

• Tighten each plug and connector bolt as specified below.

3.

Install oil jet.
• Insert oil jet dowel pin (A) into cylinder block dowel pin hole,

and tighten mounting bolts.

4.

Install main bearings and thrust bearings as follows:

CAUTION:

Be careful not to drop main bearing, and to scratch the surface.

a.

Remove dust, dirt, and engine oil on bearing mating surfaces of cylinder block and main bearing caps.

B

: Water drain plug

PBIC2487E

Part

Washer

Tightening torque

A

Yes

62.0 N·m (6.3 kg-m, 46 ft-lb)

B

No

9.8 N·m (1.0 kg-m, 87 in-lb)

C

Yes

62.0 N·m (6.3 kg-m, 46 ft-lb)

D

No

39.2 N·m (4.0 kg-m, 29 ft-lb)

: Engine front

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