Nissan Xterra. Manual - part 369

EM-104

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ENGINE UNIT

5. Remove pilot converter (A/T models) using Tool as necessary.

6. Lift engine, and mount to engine stand.

• Any widely used commercially available engine stand can be

used.

CAUTION:

• Before removing the hanging chains, make sure engine

stand is stable and there is no risk of overturning.

• Use engine stand that has a load capacity large enough

to support the engine’s weight [approximately 220 kg

(441 lb) or more].

• If the load capacity of the stand is not adequate, remove

the following parts to reduce the potential risk of over-

turning the stand.

• Remove fuel tube and fuel injector assembly. Refer to

EM-45, "Removal and Installation"

.

• Remove intake manifold. Refer to 

EM-28, "Removal and

Installation"

. 

• Remove rocker cover. Refer to 

EM-41, "Removal and

Installation"

.

• Other removable brackets.

7. Drain engine coolant by removing the cylinder block drain plugs

(A), (B), (C) and (D) from cylinder block as shown.

NOTE:

For Canada, (D) is not plug but block heater.

Tool number

: ST16610001 (J-23907)

WBIA0583E

PBIC0805E

WLIA0020E

ENGINE UNIT

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8. Remove cylinder heads. Refer to 

EM-88, "Removal and Installation"

.

9. Remove sub harness, and remove knock sensors.

CAUTION:

Handle sensor carefully; do not shock or drop.

10. Remove piston and connecting rod assembly as follows:

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

EM-112, "Inspection After Disassembly"

.

CAUTION:

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

11. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
12. Remove connecting rod bearing cap.
13. Push piston and connecting rod assembly out of the cylinder

head side using suitable tool.

CAUTION:

Be careful not to damage the cylinder wall or crankshaft pin

resulting from an interference of the connecting rod big

end.

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

CAUTION:

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

15. Remove piston rings from piston.

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

EM-112, "Inspection After

Disassembly"

.

• Remove piston rings using piston ring expander or suitable

tool.

CAUTION:

• When removing piston rings, be careful not to damage

piston.

• Be careful not to damage piston rings by expanding them

excessively.

16. Remove piston from connecting rod as follows: 
a. Remove snap ring using snap ring pliers.

PBIC2940E

PBIC0087E

PBIC1638E

EM-106

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ENGINE UNIT

b. Heat piston to 60

° to 70°C (140° to 158°F) with industrial use

drier or equivalent.

c.

Push out piston pin with drift which has an outer diameter of

approximately 20 mm (0.79 in).

17. Remove lower cylinder block bolts.

• Before loosening lower cylinder block bolts, measure the crankshaft end play. Refer to 

EM-112, "Inspec-

tion After Disassembly"

.

• Loosen lower cylinder block bolts in reverse order as shown in

several different steps.

NOTE:

Use socket (size E14) for bolts No. 1 to 16 (M10 bolt).

18. Remove lower cylinder block.

• Cut liquid gasket for removal using Tool. Refer to 

EM-4, "Precaution for Liquid Gasket"

.

CAUTION:

Be careful not to damage the mounting surfaces.

19. Remove crankshaft.
20. Pull rear oil seal out from rear end of crankshaft.

NOTE:

When replacing rear oil seal without removing lower cylinder block, use a suitable tool to pull the rear oil

seal installed between crankshaft and cylinder block out.

CAUTION:

Be careful not to damage crankshaft or cylinder block.

21. Remove main bearings and thrust bearings from cylinder block and lower cylinder block.

CAUTION:

• Do not drop main bearing, and to scratch the surface.

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

22. Remove oil jet.

ASSEMBLY

PBIC1639E

PBIC0262E

PBIC2941E

Tool number

: KV10111100 (J-37228)

ENGINE UNIT

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1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to

remove any foreign material.

WARNING:

Use goggles to protect your eyes.

2. Install each plug to cylinder block as shown.

• Apply sealant to the thread of water drain plugs (A) and (B).

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-21, "Recommended Chemical Products and Sealants"

.

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

Use Genuine High Strength Thread Locking Sealant or

equivalent. Refer to 

GI-21, "Recommended Chemical

Products and Sealants"

.

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

Use Anaerobic Liquid Gasket or equivalent. Refer to 

GI-

21, "Recommended Chemical Products and Sealants"

.

• Replace washers with new washers.

CAUTION:

Do not reuse copper sealing washers.

NOTE:

For Canada, (D) is not plug but block heater. Refer to 

EM-103,

"Disassembly and Assembly"

.

• Tighten each plug as specified below.

Block Plug and Block Heater Installation

3. Install oil jet.

• Insert oil jet dowel pin into cylinder block dowel pin hole, and

tighten bolts to specification.

4. 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.

WLIA0020E

Part

Washer

Tightening Torque

A

No

19.6 N·m (2.0 kg-m, 14 ft-lb)

B

Reuse

No

9.8 N·m (1.0 kg-m, 87 in-lb)

New

6.0 N·m (0.61 kg-m, 53 in-lb)

C

Yes

116 N·m (11.8 kg-m, 86 ft-lb)

D

Plug

Yes

62 N·m (6.3 kg-m, 46 ft-lb)

Block heater

73.5 N·m (7.5 kg-m, 54 ft-lb)

Oil jet bolts

: 27.0 N·m (2.8 kg-m, 20 ft-lb)

PBIC0898E