Nissan Juke F15. Instruction — part 656

EM-178

< SYSTEM DESCRIPTION >

[MR EXCEPT FOR NISMO RS MODELS]

STRUCTURE AND OPERATION

1.

Charge air cooler

2.

Electric throttle control actuator

3.

Gasket

4.

Gasket

5.

Intake manifold

6.

Gasket

7.

Exhaust manifold and turbocharger
assembly

8.

Exhaust manifold cover

9.

Turbocharger cover upper

JSBIA5765ZZ

CAMSHAFT VALVE CLEARANCE

EM-179

< BASIC INSPECTION >

[MR EXCEPT FOR NISMO RS MODELS]

C

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BASIC INSPECTION

CAMSHAFT VALVE CLEARANCE

Inspection and Adjustment

INFOID:0000000012197367

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-214, "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 (1) clockwise and align TDC mark (no

paint) (B) to timing indicator (A) on front cover.

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

noses of No. 1 cylinder face inside (

) as shown in the figure.

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

(360 degrees) and align as shown in the figure.

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

and camshaft.

C : White paint mark (Not use for service)

PBIC3960E

1

: Camshaft (INT)

2

: Camshaft (EXH)

: Engine front

JPBIA4347ZZ

Valve clearance

: Refer to

EM-312, "Camshaft"

.

PBIC3192J

EM-180

< BASIC INSPECTION >

[MR EXCEPT FOR NISMO RS MODELS]

CAMSHAFT VALVE CLEARANCE

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

locations marked “

×” as shown in the table below [locations

indicated with black arrow (

) in the figure] with a feeler

gauge.

c.

Set No. 4 cylinder at TDC of its compression stroke.

• Rotate crankshaft pulley (1) one revolution (360 degrees) and

align TDC mark (no paint) (B) to timing indicator (A) 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 (

) in the figure] with a feeler gauge.

3. If out of standard, perform adjustment. Refer to “ADJUSTMENT”.

ADJUSTMENT

NOTE:

Adjust by selecting the head thickness of the valve lifter. (Adjustment shims are not used.)
1. Remove camshaft. Refer to

EM-260, "Exploded View"

.

2. Remove the valve lifters for parts that are outside the standard.

A

: Exhaust side

B

: No. 1 cylinder

C

: No. 2 cylinder

D

: No. 3 cylinder

E

: No. 4 cylinder

F

: Intake side

: Engine front

JPBIA4348ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 1 cylinder at compression TDC

EXH

×

×

INT

×

×

C : White paint mark (Not use for service)

PBIC3960E

A

: Exhaust side

B

: No. 1 cylinder

C

: No. 2 cylinder

D

: No. 3 cylinder

E

: No. 4 cylinder

F

: Intake side

: Engine front

JPBIA4349ZZ

Measuring position

No. 1 CYL.

No. 2 CYL.

No. 3 CYL.

No. 4 CYL.

No. 4 cylinder at compression TDC

EXH

×

×

INT

×

×

CAMSHAFT VALVE CLEARANCE

EM-181

< BASIC INSPECTION >

[MR EXCEPT FOR NISMO RS MODELS]

C

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3. Measure thickness of the removed valve lifter center part using

a micrometer (A).

4. Measure the thickness of the replacement valve lifter using the following formula. (Units: mm)

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

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

• Stamp mark “302” indicates 3.02 mm (0.1189 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-312, "Camshaft"

.

5. Install selected valve lifter.
6. Install camshaft. Refer to

EM-260, "Exploded View"

.

7. Install parts related to the timing chain. Refer to

EM-249, "Removal and Installation"

.

8. Rotate crankshaft at least two rotations using the instruction tool.
9. Measure the valve clearance again, and check that it is within the valve clearance standard.
10. Install removed parts in the reverse order of removal.
11. Start engine and check for any unusual noise and vibration.

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

: 0.28 mm (0.011 in)

Exhaust

: 0.29 mm (0.011 in)

PBIC3196J