Nissan Frontier D40. Manual - part 620

EM-212

< REMOVAL AND INSTALLATION >

[VQ40DE]

ENGINE ASSEMBLY

29. Install engine slingers into left bank and right bank.

30. Remove front frame crossmember.
31. Remove transmission. Refer to 

TM-69, "Removal and Installa-

tion from Vehicle (For 2WD Models)"

 (2WD M/T models) 

TM-71,

"Removal and Installation from Vehicle (For 4WD Models)"

(4WD M/T models), 

TM-301, "Removal and Installation for

VQ40DE 2WD Models"

 (2WD A/T models), 

TM-303, "Removal

and Installation for VQ40DE 4WD Models"

 (4WD A/T models).

32. Lift with hoist and secure the engine in position.
33. Remove engine assembly from vehicle, avoiding interference with vehicle body.

CAUTION:

• Before and during this lifting, always check if any harnesses are left connected.

34. Remove the parts that may restrict installation of engine to engine stand.

NOTE:
The procedure is described assuming that you use a engine holding the surface, to which transmission is
installed.

a.

Remove clutch cover and clutch disc (M/T models). Refer to 

CL-23, "6M/T : Removal and Installation"

.

b.

Remove flywheel (M/T models) or drive plate (A/T models).
• Holding crankshaft pulley bolts, lock crankshaft to remove flywheel or drive plate bolts.
• Loosen bolts diagonally.

CAUTION:

• Be careful not to damage or scratch drive plate (A/T

models) and contact surface for clutch disc of flywheel
(M/T models). Especially avoid deforming and damaging
of signal plate teeth (circumference position).

• Do not disassemble drive plate.
• Place the drive plate with signal plate surface facing

other than downward.

• Keep magnetic materials away from signal plate.

CAUTION:

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

reduce the potential risk of overturning the stand.

- Remove fuel tube and fuel injector assembly. Refer to 

EM-159, "Removal and Installation"

.

- Remove intake manifold. Refer to 

EM-143, "Removal and Installation"

. 

- Remove rocker cover. Refer to 

EM-155, "Removal and Installation"

.

- Other removable brackets.

CAUTION:

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

35. Remove generator. Refer to 

CHG-21, "Removal and Installation - VQ40DE Models"

.

36. Remove engine mounting insulator bracket (upper) with power tool.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• When replacing an engine or transmission you must make sure the dowels are installed correctly

during reassembly.

• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of driv-

etrain components.

Engine slinger torque:

28.0 N·m (2.9 kg-m, 21 ft-lb)

WBIA0624E

KBIA2491E

ENGINE ASSEMBLY

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INSPECTION AFTER INSTALLATION

• Before starting the engine, check oil/fluid levels including engine coolant and engine oil. If the levels are

lower than required quantity, fill to the specified level. Refer to 

MA-16, "For North America: Fluids and Lubri-

cants"

.

• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to the fuel piping, check for fuel

leakage at the connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oil/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down the engine, again check oil/fluid levels including engine oil and engine coolant. Refill to

specified level if necessary.

• Summary of the inspection items:

*Transmission fluid, power steering fluid, brake fluid, etc.

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gas

—

Leakage

—

EM-214

< DISASSEMBLY AND ASSEMBLY >

[VQ40DE]

ENGINE UNIT

DISASSEMBLY AND ASSEMBLY

ENGINE UNIT

Exploded View

INFOID:0000000005274358

1.

Reinforcement plate

2.

Drive plate (A/T models), Flywheel 
(M/T models)

3.

Rear oil seal

4.

Sub harness

5.

Knock sensor

6.

Water connector

7.

Cylinder block

8.

Oil jet

9.

Thrust bearing

10. Pilot converter (A/T models)

11. Main bearing

12. Crankshaft

13. Crankshaft key

14. Lower cylinder block

15. Lower cylinder block bolt

16. Connecting rod bolt

17. Connecting rod bearing cap

18. Connecting rod bearing

19. Connecting rod

20. Snap ring

21. Piston pin

22. Piston

23. Oil ring

24. Second ring

25. Top ring

WBIA0582E

ENGINE UNIT

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< DISASSEMBLY AND ASSEMBLY >

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Disassembly and Assembly

INFOID:0000000005274359

DISASSEMBLY

NOTE:
Explained here is how to disassemble with engine stand supporting transmission surface. When using differ-
ent type of engine stand, some steps may be different.

1.

Remove the engine and the transmission assembly from the vehicle, and separate the transmission
assembly from the engine. Refer to 

EM-210, "Removal and Installation"

.

2.

Remove both exhaust manifolds. Refer to 

EM-146, "Removal and Installation (Exhaust Manifold)"

.

3.

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

1.

Cylinder block

2.

Gasket

3.

Cylinder block heater

4.

Connector protector cap

PBIC2936E

Tool number

: ST16610001 (J-23907)

WBIA0583E