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Nissan Titan. Manual - part 318

EM-76

< REMOVAL AND INSTALLATION >

OIL SEAL

• Holding the crankshaft pulley bolt, lock the crankshaft to

remove the drive plate bolts.

• Remove drive plate bolts diagonally.

CAUTION:

• Do not damage the drive plate. Especially, avoid deform-

ing and damaging the signal plate teeth (circumference

position).

• Keep magnetic materials away from signal plate.

• Place the drive plate with the signal plate surface facing

upward.

4. Remove the rear oil seal using suitable tool.

CAUTION:

Do not damage crankshaft or oil seal retainer surface.

INSTALLATION

1. Apply new engine oil to both the oil seal lip and dust seal lip of the new rear oil seal.
2. Install the rear oil seal.

• Install the rear oil seal so that each seal lip is oriented as

shown.

- (A): Oil seal lip

- (B): Dust seal lip
-

: Engine inside

: Engine outside

• Press in rear oil seal (1) to the position as shown.

- (B): Rear oil seal retainer rear end face

KBIA2491E

WBIA0437E

JPBIA0054ZZ

(a)

: 0 - 0.5 mm (0 - 0.020 in)

JPBIA0152ZZ

OIL SEAL

EM-77

< REMOVAL AND INSTALLATION >

• Press-fit the rear oil seal using suitable tool.

CAUTION:

• Do not damage the crankshaft or cylinder block.

• Press-fit the oil seal straight to avoid causing burrs or

tilting.

• Do not touch grease applied onto the oil seal lip.

• Do not damage or scratch the outer circumference of

the rear oil seal.

• Tap until flattened with the front edge of the oil seal retainer.

3. Installation of the remaining components is in the reverse order of removal. Refer to

TM-211, "Removal

and Installation (2WD)"

TM-213, "Removal and Installation (4WD)"

CAUTION:

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

rectly during re-assembly.

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

drivetrain components.

WBIA0438E

EM-78

< REMOVAL AND INSTALLATION >

CYLINDER HEAD

CYLINDER HEAD

Exploded View

INFOID:0000000009886438

Removal and Installation

INFOID:0000000009886439

REMOVAL

1. Remove the engine assembly from the vehicle. Refer to

EM-88, "Removal and Installation"

2. Remove the following components and related parts:

• Drive belt auto-tensioner, drive belt and idler pulley. Refer to

EM-15, "Drive Belt Auto-Tensioner and

Idler Pulley"

• Generator assembly and bracket. Refer to

CHG-28, "Removal and Installation"

• Thermostat housing and hose. Refer to

CO-22, "Removal and Installation"

• Oil pan and oil strainer. Refer to

EM-35, "Removal and Installation"

• Fuel tube and fuel injector assembly. Refer to

EM-43, "Removal and Installation"

• Intake manifold. Refer to

EM-27, "Removal and Installation"

• Rocker cover. Refer to

EM-41, "Removal and Installation"

• Starter. Refer to

STR-19, "Removal and Installation"

• Knock sensors. Refer to

EM-92, "Exploded View"

• Engine coolant temperature sensor (if necessary).

3. Remove the crankshaft pulley, front cover, oil pump, and timing chain. Refer to

EM-50, "Removal and

Installation"

4. Remove the camshaft sprockets and camshafts. Refer to

EM-62, "Removal and Installation"

5. Remove the cylinder head bolts in reverse of order shown using

Tool.

6. Remove the cylinder heads.
7. Remove the cylinder head gaskets.

Harness bracket

Engine coolant temperature sensor

Washer

Cylinder head gasket (LH)

Cylinder head (RH)

Cylinder head bolt

Cylinder head gasket (RH)

Cylinder head (LH)

KBIA2528E

Tool number

: — (J-45816)

PBIC0068E

CYLINDER HEAD

EM-79

< REMOVAL AND INSTALLATION >

INSPECTION AFTER REMOVAL

Cylinder Head Bolts Diameter

• Cylinder head bolts are tightened by plastic zone tightening

method. Whenever the size difference between d1 and d2 exceeds

the limit, replace the bolt with a new one.

• If reduction of diameter appears in a position other than d2, use it

as d2 point.

INSTALLATION

1. Install a new cylinder head gasket.

CAUTION:

Do not reuse head gasket.

2. Install the cylinder head. Follow the steps below to tighten the

bolts in the numerical order shown.

CAUTION:

• If cylinder head bolts are re-used, check their diameters

before installation. Follow the "Cylinder Head Bolts Diam-

eter" procedure.

a. Apply engine oil to threads and seating surface of the bolts.

b. Measure the tightening angle using Tool.

CAUTION:

Measure the tightening angle using Tool. Do not measure

visually.

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

INSPECTION AFTER INSTALLATION

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to

MA-15, "FOR NORTH AMERICA : Fluids and Lubricants"

(United

States and Canada) or

MA-16, "FOR MEXICO : Fluids and Lubricants"

(Mexico).

• Use procedure below to check for fuel leakage.

• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at 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:

Limit (d1 - d2)

: 0.23 mm (0.0091 in)

KBIA0189E

PBIC0068E

Step a : 44.1 N·m (4.5 kg-m, 33 ft-lb)
Step b : 70

° clockwise

Step c : Loosen to 0 N·m (0 kg-m, 0 ft-lb) in reverse

order (10-1)

Step d : 44.1 N·m (4.5 kg-m, 33 ft-lb)
Step e : 60

° clockwise

Step f

: 60

° clockwise

Tool number

: KV10112100 (BT-8653-A)

WBIA0603E

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