Nissan Frontier D40. Manual - part 616

EM-196

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[VQ40DE]

OIL SEAL

OIL SEAL

Removal and Installation of Valve Oil Seal

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REMOVAL

1.

Turn crankshaft until the cylinder requiring new oil seals is at TDC. This will prevent valve from dropping
into cylinder.

2.

Remove camshaft relating to valve oil seal to be removed. Refer to 

EM-187, "Removal and Installation"

.

3.

Remove valve lifters. Refer to 

EM-187, "Removal and Installation"

.

4.

Remove valve collet, valve spring retainer and valve spring
using Tool.

CAUTION:

When working, take care not to damage valve lifter holes.

• Compress valve spring using Tool attachment, adapter.

Remove valve collet with magnet hand.

5.

Remove valve oil seal using Tool.

INSTALLATION

1.

Apply new engine oil to new valve oil seal joint surface and seal lip.

2.

Press in valve oil seal to specified height (H) using Tool.

NOTE:
Dimension (H): height measured before valve spring seat instal-
lation.

3.

Installation of the remaining components is in the reverse order
of removal.

Removal and Installation of Front Oil Seal

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REMOVAL

1.

Remove engine under cover. Refer to 

EXT-13, "Removal and Installation"

.

2.

Remove drive belt. Refer to 

EM-127, "Removal and Installation"

.

3.

Remove engine cooling fan assembly. Refer to 

CO-46, "Removal and Installation (Crankshaft driven

type)"

.

4.

Remove crankshaft pulley. Refer to 

EM-164, "Removal and Installation"

.

Tool numbers

: KV10116200 (J-26336-B)

: KV10115900 (J-26336-20)

: KV10109220 (

—

)

WBIA0578E

Tool number

: KV10107902 (J-38959)

WBIA0489E

Tool number

: 

—

(J-39386)

Intake and exhaust

: 14.3 - 14.9 mm (0.563 - 0.587 in)

WBIA0490E

OIL SEAL

EM-197

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[VQ40DE]

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5.

Remove front oil seal using suitable tool.

CAUTION:

Be careful not to damage front timing chain case and crank-
shaft.

INSTALLATION

1.

Apply new engine oil to both oil seal lip and dust seal lip of new front oil seal.

2.

Install front oil seal.
• Install front oil seal so that each seal lip is oriented as shown.

• Press-fit until the height of front oil seal is level with the mount-

ing surface using suitable tool.

- Suitable drift: outer diameter 60 mm (2.36 in), inner diameter

50 mm (1.97 in).

CAUTION:

• Be careful not to damage front timing chain case and

crankshaft.

• Press-fit straight and avoid causing burrs or tilting oil

seal.

3.

Installation is in the reverse order of removal after this step.

Removal and Installation of Rear Oil Seal

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REMOVAL

1.

Remove transmission assembly. Refer to 

TM-69, "Removal and Installation from Vehicle (For 2WD Mod-

els)"

 (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).

2.

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

CL-22, "6M/T : Exploded View"

.

3.

Remove drive plate (A/T models) or flywheel (M/T models). Refer to 

EM-214, "Exploded View"

.

PBIC2931E

SEM715A

PBIC2931E

EM-198

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[VQ40DE]

OIL SEAL

4.

Remove rear oil seal with a suitable tool.

CAUTION:

Be careful not to damage crankshaft and cylinder block.

INSTALLATION

1.

Apply new engine oil to new rear oil seal joint surface and seal lip.

2.

Install rear oil seal so that each seal lip is oriented as shown.

• Install new rear oil seal using Tool.

CAUTION:

• Be careful not to damage crankshaft and cylinder block.
• Press-fit oil seal straight to avoid causing burrs or tilt-

ing.

• Do not touch grease applied onto oil seal lip.

• Press in rear oil seal to the position as shown.

3.

Installation of the remaining components is in the reverse order of removal.

CAUTION:

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

rectly during reassembly.

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

drivetrain components.

PBIC2932E

SEM715A

Tool number

:    —   (J-49815)

:    —   (J-8092)

PBIC2933E

SBIA0281E

CYLINDER HEAD

EM-199

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CYLINDER HEAD

Exploded View

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Removal and Installation

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REMOVAL

1.

Remove camshaft. Refer to 

EM-187, "Removal and Installation"

.

2.

Remove intake manifold. Refer to 

EM-143, "Removal and Installation"

.

3.

Remove exhaust manifold. Refer to 

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

.

4.

Remove water inlet and thermostat assembly. Refer to 

CO-54, "Removal and Installation"

.

5.

Remove water outlet, water pipe and heater pipe. Refer to 

CO-56, "Removal and Installation"

.

1.

Rubber plug

2.

Cylinder head (left bank)

3.

Cylinder head bolt

4.

Cylinder head (right bank)

5.

Harness bracket

6.

Cylinder head gasket (right bank)

7.

Cylinder head gasket (left bank)

PBIC2934E