Nissan Tiida C11. Manual - part 682

EM-80

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CYLINDER HEAD

CYLINDER HEAD

Removal and Installation

INFOID:0000000001381421

REMOVAL

1.

Release fuel pressure. Refer to 

EC-377, "Inspection"

 (EURO-OBD), 

EC-681, "Inspection"

 (WITHOUT

EURO-OBD).

2.

Drain engine coolant and engine oil. Refer to 

CO-11, "Changing Engine Coolant"

 and 

LU-7, "Draining"

.

CAUTION:

• Perform this step when the engine is cold.
• Never spill engine coolant and engine oil on drive belt.

3.

Remove the following components and related parts.
• Front fender protector (RH): Refer to 

EXT-22, "Removal and Installation"

.

• Generator: Refer to 

CHG-15, "Removal and Installation"

.

• Exhaust front tube: Refer to 

EX-5, "Component"

.

• Exhaust manifold: Refer to 

EM-32, "Exploded View"

.

• Intake manifold: Refer to 

EM-29, "Exploded View"

.

• Fuel tube and fuel injector: Refer to 

EM-35, "Exploded View"

.

• Water outlet: Refer to 

CO-24, "Removal and Installation"

.

• Drive belt: Refer to 

EM-16, "Removal and Installation"

.

• Front cover: Refer to 

EM-50, "Exploded View"

.

• Camshaft: Refer to 

EM-59, "Exploded View"

.

4.

Remove cylinder head loosening bolts in reverse order as
shown with cylinder head wrench (commercial service tool). 

1.

Cylinder head assembly 

2.

Cylinder head bolt

3.

Washer

4.

Cylinder head gasket

A.

Refer to 

EM-80

PBIC3731E

A

: EXH side

B

:  INT  side

: Engine front

PBIC3732E

CYLINDER HEAD

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5.

Remove cylinder head gasket.

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 checking. Refer to 

EM-127, "Cylinder

Block"

.

1.

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

CAUTION:

Never allow gasket debris to enter passages for engine oil or engine coolant.

2.

At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions.

• If it exceeds the limit, replace cylinder head.

INSTALLATION

1.

Install new cylinder head gasket.

2.

Tighten cylinder head bolts in numerical order as shown with the
following procedure to install cylinder head.

CAUTION:

If cylinder head bolts are re-used, check their outer diame-
ters before installation.  Follow the “Cylinder Head Bolts
Outer Diameter” measurement procedure.

a.

Apply new engine oil to threads and seating surfaces of mount-
ing bolts.

b.

Tighten all bolts.

c.

Completely loosen.

CAUTION:

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

PBIC3717E

A

: Straightedge

B

: Feeler gauge

Limit

: Refer to 

EM-125, "Cylinder Head"

.

PBIC3207J

A

: EXH side

B

: INT side

: Engine front

: 66.7 N·m (6.8 kg-m, 49 ft-lb)

: 0 N·m (0 kg-m, 0 ft-lb)

PBIC3732E

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CYLINDER HEAD

In this step, loosen bolts in reverse order of that indicated.

d.

Tighten all bolts.

e.

Turn all bolts 75 degrees clockwise (angle tightening).

CAUTION:

Check and confirm the tightening angle by using the angle
wrench [SST: KV10112100] (A) or protractor. Avoid judg-
ment by visual inspection without the tool.

f.

Turn all bolts 75 degrees clockwise again (angle tightening).

3.

Installation is in the reverse order of removal, for the remaining parts. 

INSPECTION AFTER INSTALLATION

Inspection for Leaks

• 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-19, "Fluids and Lubricants"

.

• 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.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ-

ing engine oil and engine coolant.

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

specified level, if necessary.

Summary of the inspection items:

*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.

Disassembly and Assembly

INFOID:0000000001381422

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

PBIC3733E

Items

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Other oils and fluid*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gases

—

Leakage

—

CYLINDER HEAD

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DISASSEMBLY

1.

Remove spark plug with a spark plug wrench (commercial service tool).

2.

Remove valve lifter.
• Identify installation positions, and store them without mixing them up.

3.

Remove valve collet. 
• Compress valve spring with the valve spring compressor, the

attachment and the adapter [SST: KV10116200] (A). Remove
valve collet with a magnet hand (B).

CAUTION:

Be careful not to damage valve lifter holes.

4.

Remove valve spring retainer and valve spring.

5.

Push valve stem to combustion chamber side, and remove valve. 
• Identify installation positions, and store them without mixing them up.

1.

Spark plug

2.

Valve collet

3.

Valve spring retainer

4.

Valve spring

5.

Valve spring seat

6.

Valve oil seal

7.

Valve guide (EXH)

8.

Valve guide (INT)

9.

Cylinder head

10. Valve seat (EXH)

11.

Valve (EXH)

12. Valve seat (INT)

13. Valve 

(INT)

A.

Refer to 

EM-82

B.

Refer to 

EM-82

PBIC3734E

PBIC3727E