Nissan Tiida C11. Manual — part 667

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SPARK PLUG

• Never drop or shock spark plug.
• Never use a wire brush for cleaning.
• If plug tip is covered with carbon, spark plug cleaner may be

used.

• Checking and adjusting plug gap is not required between

change intervals.

INSTALLATION

Installation is the reverse order of removal.

Cleaner air
pressure:

Less than 588 kPa (6 kg/cm

2

, 85 psi)

Cleaning time:

Less than 20 seconds

SMA773C

JPBIA0031ZZ

Plug type

: Platinum tipped

Make

: NGK

Part number

: PLZKAR6AP-11

Gap (nominal)

: 1.1 mm (0.043 in)

CAMSHAFT VALVE CLEARANCE

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CAMSHAFT VALVE CLEARANCE

Inspection and Adjustment

INFOID:0000000001381391

INSPECTION

Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.

1.

Remove rocker cover. Refer to

EM-47, "Exploded View"

.

2.

Measure the valve clearance with the following procedure:

a.

Set No. 1 cylinder at TDC of its compression stroke.
• Rotate crankshaft pulley (2) clockwise and align TDC mark

(without paint mark) (A) to timing indicator (1) on front cover.

• At the same time, make sure that both intake and exhaust cam

noses of No. 1 cylinder face outside as shown.

• If they do not face outside, rotate crankshaft pulley once more

(360 degrees) and align as shown.

b.

Use a feeler gauge, measure the clearance between valve lifter
and camshaft.

• By referring to the figure, measure the valve clearances at

locations marked “

×

” as shown in the table below [locations

indicated with black arrow (

) shown] with a feeler gauge.

B

: White paint mark (Not use for service)

PBIC3673E

1

: Camshaft (INT)

2

: Camshaft (EXH)

: Engine front

PBIC3359J

Valve Clearance:

Refer to

EM-123, "Camshaft"

.

SEM139D

A

: No. 1 cylinder compression TDC

: Engine front

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

Measurement po-
sition

EXH

×

×

INT

×

×

PBIC3707E

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CAMSHAFT VALVE CLEARANCE

c.

Rotate crankshaft pulley (2) one revolution (360 degrees) and
align TDC mark (without paint mark) (A) to timing indicator (1) on
front cover.

• By referring to the figure, measure the valve clearance at loca-

tions marked “

×

” as shown in the table below [locations indi-

cated with black arrow (

) shown] with a feeler gauge.

3.

If out of standard, perform adjustment procedure.

ADJUSTMENT

• Perform adjustment depending on selected head thickness of valve lifter.

1.

Remove camshaft. Refer to

EM-59, "Exploded View"

.

2.

Remove valve lifters at the locations that are out of the standard.

3.

Measure the center thickness of the removed valve lifters with a
micrometer (A).

4.

Use the equation below to calculate valve lifter thickness for replacement.

B

: White paint mark (Not use for service)

PBIC3673E

A

: No. 4 cylinder compression TDC

: Engine front

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

Measurement
point

EXH

×

×

INT

×

×

PBIC3708E

PBIC3195J

Valve lifter thickness calculation:

t = t

1

+ (C

1

– C

2

)

t

= Valve lifter thickness to be replaced

t

1

= Removed valve lifter thickness

C

1

= Measured valve clearance

C

2

= Standard valve clearance:

Intake

: 0.30 mm (0.012 in)

Exhaust

: 0.33 mm (0.013 in)

CAMSHAFT VALVE CLEARANCE

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• Thickness of new valve lifter (B) can be identified by stamp

mark (A) on the reverse side (inside the cylinder).

• Stamp mark “300” indicates 3.00 mm (0.118 in) in thickness.

NOTE:
Available thickness of valve lifter: 26 sizes range 3.00 to 3.50 mm (0.1181 to 0.1378 in) in steps of 0.02
mm (0.0008 in) (when manufactured at factory). Refer to

EM-123, "Camshaft"

.

5.

Install the selected valve lifter.

6.

Install camshaft. Refer to

EM-59, "Exploded View"

.

7.

Manually rotate crankshaft pulley a few rotations.

8.

Make sure that valve clearances for cold engine are within specifications by referring to the specified val-
ues.

9.

Install all removed parts in the reverse order of removal.

10. Warm up the engine, and check for unusual noise and vibration.

PBIC3196J