Nissan Tiida C11. Manual - part 711

EM-196

< ON-VEHICLE REPAIR >

[MR18DE]

OIL SEAL

• Drive belt; Refer to 

EM-142, "Component"

.

• Crankshaft pulley; Refer to 

EM-176, "Component"

.

2.

Remove front oil seal using a suitable tool.

CAUTION:

Be careful not to damage front cover and crankshaft.

INSTALLATION

1.

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

2.

Install front oil seal so that each seal lip is oriented as shown in
the figure.

• Install front oil seal (2) using a suitable tool with outer diameter

57 mm (2.24 in) and inner diameter 45 mm (1.77 in) (A) to the
dimension as shown.

CAUTION:

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

ing.

• Do not touch grease applied on oil seal lip.

3.

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

Removal and Installation of Rear Oil Seal

INFOID:0000000001337802

REMOVAL

1.

Remove transaxle assembly. Refer to 

TM-681, "Removal and Installation"

.

2.

Remove clutch cover and clutch disk. Refer to 

CL-13, "Removal and Installation"

. 

3.

Remove flywheel. Refer to 

EM-211, "Component"

.

4.

Remove rear oil seal with a suitable tool.

CAUTION:

Be careful not to damage crankshaft and cylinder block.

INSTALLATION

1.

Apply the liquid gasket lightly to entire outside area of new rear oil seal.
Use Genuine Silicone RTV Sealant or equivalent. Refer to 

GI-27, "Recommended Chemical Prod-

ucts and Sealants"

.

A

: Dust seal lip

B

: Oil seal lip

: Engine outside

: Engine inside

PBIC3485J

Within 0.3 mm (0.012 in) toward engine front

Within 0.5 mm (0.020 in) toward engine rear

PBIC3729E

OIL SEAL

EM-197

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2.

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

• Install rear oil seal with a suitable tool with an outer diameter

115 mm (4.53 in) and inner diameter 90 mm (3.54 in) (A).

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.

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

NOTE:
The standard surface of the dimension is the rear end surface of
cylinder block.

3.

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

A

: Dust seal lip

B

:  Oil  seal  lip

: Engine outside

: Engine inside

PBIC3485J

PBIC3951E

A

: Rear end surface of cylinder block

PBIC3761E

EM-198

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[MR18DE]

CYLINDER HEAD

CYLINDER HEAD

Component

INFOID:0000000001337804

Removal and Installation

INFOID:0000000001337805

REMOVAL

WARNING:

• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilated area and furnish workshop with a CO

2

 fire extinguisher. 

• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

1.

Release the fuel pressure. Refer to 

EC-1035, "Inspection"

.

2.

Drain engine coolant and engine oil. Refer to 

CO-35, "Changing Engine Coolant"

 and 

LU-16, "Changing

Engine Oil"

.

3.

Remove front fender protector (RH). Refer to 

EXT-22, "Removal and Installation"

.

4.

Remove drive belt. Refer to 

EM-142, "Removal and Installation"

.

5.

Remove the following components and related parts.
• Exhaust manifold; Refer to 

EM-159

.

• Intake manifold; Refer to 

EM-156

.

• Fuel tube and fuel injector assembly; Refer to 

EM-162

.

• Water outlet; Refer to 

CO-47, "Removal and Installation"

.

• Rocker cover; Refer to 

EM-173, "Removal and Installation"

.

• Front cover, timing chain; Refer to 

EM-176

.

• Camshaft; Refer to 

EM-186

.

6.

Remove cylinder head.
• Loosen bolts in reverse order as shown. 

• Using TORX socket (size E18), loosen cylinder head bolts.

7.

Remove cylinder head gasket.

1.

Cylinder head assembly

2.

Cylinder head bolt

3.

Cylinder head gasket

A.

Refer to 

EM-198

PBIC3542J

: Engine front

PBIC3206J

CYLINDER HEAD

EM-199

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INSPECTION AFTER REMOVAL

Cylinder Head Bolts Outer Diameter

• Cylinder head bolts are tightened by plastic zone tightening

method. Whenever the size difference between “d1” and “d2”
exceeds the limit, replace them with a new one. 

• If reduction of outer diameter appears in a position other than “d2”,

use it as “d2” point.

Cylinder Head Distortion

NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to 

EM-219, "Inspec-

tion After Disassembly"

.

1.

Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.

CAUTION:

Use utmost care not to allow gasket debris to enter passages for engine oil or water.

2.

At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions using straightedge (A)
and feeler gauge (B).

• If it exceeds the limit, replace cylinder head.

INSTALLATION

1.

Install cylinder head gasket.

2.

Apply new engine oil to threads and seating surface of bolts.

CAUTION:

If cylinder head bolts re-used, check their outer diameters before installation. Follow the "Cylinder
Head Bolts Outer Diameter" measurement procedure.

3.

Install cylinder head, follow the steps below to tighten cylinder
head bolts in numerical order as shown.

Limit (“d1” – “d2”): 0.15 mm (0.0059 in)

PBIC3994E

Limit: 0.1 mm (0.004 in)

PBIC3207J

Step a

: 40 N·m (4.1 kg-m, 30 ft-lb) 

Step b

: 100

°

 clockwise

Step c

: Loosen to 0 N·m in the reverse order of tight-
ening.

Step d

: 40 N·m (4.1 kg-m, 30 ft-lb) 

Step e

: 100

°

 clockwise

Step f

: 100

°

 clockwise

PBIC3206J