Nissan Pathfinder. Manual — part 562

OIL SEAL

EM-87

< REMOVAL AND INSTALLATION >

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• Lubricate thread and seat surface of the bolt with new engine oil.

• For the second step angle tighten using Tool.

CAUTION:

• Do not damage the front oil seal when inserting crankshaft pulley.

• Use only brass or plastic hammer if tapping on the crankshaft pulley.

• Do not hammer on pulley grooves.

3. Remove the Tool to unlock the driveplate.

CAUTION:

Do not damage the ring gear teeth, or the signal plate teeth behind the ring gear, when removing

the Tool.

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

Removal and Installation of Rear Oil Seal

INFOID:0000000009177934

REMOVAL

1. Remove the upper oil pan. Refer to

EM-37, "Removal and Installation (Upper Oil Pan)"

.

2. Remove drive plate. Refer to

EM-131, "Dowel Pin Alignment"

.

3. Remove rear oil seal retainer using Tool.

CAUTION:

• Be careful not to damage mating surface.

• If rear oil retainer is removed, replace it with a new one

NOTE:

Rear oil seal and retainer form a single part and are replaced as

an assembly.

INSTALLATION

1. Remove old liquid gasket material from mating surface of cylinder block and oil pan using a suitable

scraper.

2. Install the rear oil seal retainer using Tool (A).

a. Loosen the wing nut (B) on the end of the Tool (A).
b. Insert the arbor (D) into the crankshaft pilot hole until the outer

lip (C) of the Tool (A) covers the edge of the crankshaft sealing

surface.

c. Tighten the wing nut (B) to secure the Tool (A) to the crankshaft.

Step 1

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

Step 2

: 90

°(+0°/-6°) degrees clockwise

Tool number

: KV10112100 (BT-8653-A)

Tool number

: — (J-50288)

Tool Number

: KV10111100 (J-37228)

SEM830E

Tool number

: — (J-47128)

ALBIA0652ZZ

EM-88

< REMOVAL AND INSTALLATION >

OIL SEAL

d. Apply sealant to rear oil seal retainer as shown.

Use Genuine Silicone RTV Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

CAUTION:

• Installation should be done within 5 minutes after apply-

ing liquid gasket.

• Do not fill the engine with engine oil for at least 30 min-

utes after the components are installed to allow the liquid

gasket to cure.

e. Lubricate the sealing surface of the new rear main seal with new engine oil.
f.

Slide the new rear main seal (1) over the Tool (A) and onto the

crankshaft.

g. Loosen the wing nut and push the threaded rod into the handle

to remove the Tool (A).

h. Tighten the rear oil seal retainer bolts to specification.

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

CAUTION:

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

during re-assembly.

• Improper alignment caused by missing dowels may cause vibration, engine oil leaks or break-

age of drivetrain components.

AWBIA0028ZZ

Rear oil seal retainer bolts : 8.8 (0.9 kg-m, 78 in-lb)

ALBIA0653ZZ

CYLINDER HEAD

EM-89

< REMOVAL AND INSTALLATION >

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CYLINDER HEAD

Exploded View

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Removal and Installation

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REMOVAL

1. Remove the engine from the vehicle. Refer to

EM-102, "2WD : Removal and Installation"

(2WD) or

EM-

107, "4WD : Removal and Installation"

(4WD).

2. Remove the rear timing chain case. Refer to

EM-70, "Removal and Installation"

.

3. Remove the intake manifold. Refer to

EM-29, "Removal and Installation"

.

4. Remove the exhaust manifolds. Refer to

EM-31, "Exploded View"

.

5. Remove the intake and exhaust camshafts. Refer to

EM-75, "Removal and Installation"

.

6. Remove the coolant outlet housing. Refer to

CO-26, "Removal and Installation"

.

7. Remove the (RH)and (LH) cylinder head bolts with power tool.

• The bolts should be loosened gradually in three stages.

• Loosen the bolts in the numerical order as shown.

1.

Cylinder head bolt

2.

Cylinder head

3.

Cylinder head gasket

4.

Engine block

A. Refer to INSTALLATION

ALBIA0260ZZ

SEM859E

EM-90

< REMOVAL AND INSTALLATION >

CYLINDER HEAD

8. Remove cylinder heads and gaskets.

• Discard the cylinder head gaskets and use new gaskets for

installation.

INSTALLATION

1. Turn the crankshaft until No. 1 piston is set at TDC on the com-

pression stroke.

• The crankshaft key should line up with the RH cylinder center

line as shown.

2. Install new cylinder head gaskets.

CAUTION:

Do not reuse cylinder head gaskets.

3. Inspect the cylinder head bolts before installing the cylinder heads.

CAUTION:

SEM860E

SEM863E

SEM532G

SEM445G