Nissan Juke F15. Manual - part 680

EM-274

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR EXCEPT FOR NISMO RS MODELS]

CYLINDER HEAD

NOTE:

It is not necessary to remove the oil pump drive components.

• Camshaft: 

EM-261, "Removal and Installation"

.

• Disconnect and move each wire and piping aside.

2. Loosen cylinder head bolts in the reverse order of the numerical

order shown in the figure.

• Use a TORX socket (size: E18).

3. Remove cylinder head gasket.

INSTALLATION

1. Install cylinder head gasket.

CAUTION:

Always replace cylinder head gasket with a new one.

2. Follow the procedure below and tighten cylinder head bolts in

the numerical order shown in the figure.

• Use a TORX socket (size: E18).

CAUTION:

• If the cylinder head bolt is to be reused, check the outer

diameter in advance. Refer to 

EM-279, "Inspection"

.

• In step (4), loosen all bolts in the reverse order of the

numerical order shown in the figure.

a. Apply new engine oil to the threads and seat surfaces of cylinder

head bolts.

b. Tighten the cylinder head bolts.

c.

Tighten an additional 100

° (angle tightening).

• When using a protractor, mark the cylinder and bolt heads and check the tightening angle.

CAUTION:

Check tightening angle with an angle wrench [SST:

KV10112100 (BT8653-A)] A or a protractor. Never estimate

tightening angle visually.

d. Fully loosen the cylinder head bolts.

CAUTION:

Reverse order of tightening

e. Tighten the cylinder head bolts.

f.

Tighten an additional 95

° (angle tightening).

g. Tighten an additional 95

° (angle tightening).

3. Install removed parts in the reverse order of removal.

: Engine front

JPBIA4415ZZ

: Engine front

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

: 0 N·m (0 kg-m, 0 ft-lb)

: 40.0 N·m (4.1 kg-m, 30 ft-lb)

JPBIA4415ZZ

JPBIA4435ZZ

CYLINDER HEAD

EM-275

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR EXCEPT FOR NISMO RS MODELS]

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Disassembly and Assembly

INFOID:0000000012197439

DISASSEMBLY

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

CAUTION:

Never subject parts to impact. (Use of pneumatic tools and power tools is prohibited.)

2. Remove valve lifter.

• Identify installation position of each valve. Arrange removed valves so that they cannot be mixed up.

3. Use a valve spring compressor [SST:  KV10116200 (J-26336-A)]

(A), adapter [SST: KV10109220 ( — )] (B), and attachment [SST:

KV10115900 (J-26336-20)] and remove the valve collet.

CAUTION:

• Never damage the valve lifter hole while working.

• The centers of the attachment [SST: KV10115900 (J-26336-

20)] (A) and valve spring retainer (1) must be aligned.

4. Remove valve spring retainer and valve spring.

CAUTION:

Never remove valve spring seat from valve spring (assembly parts).

5. Push the valve stem toward the combustion chamber side and remove valve.

• After removal, check valve guide clearance. Refer to 

EM-179, "Inspection and Adjustment"

.

• Identify installation position of each valve. Arrange removed valves so that they cannot be mixed up.

6. Remove valve oil seals.

• Use valve oil seal puller [SST: KV10107902 (J-38959)] (A).

7. Remove valve seat if necessary.

• Bore out old valve seat until it is thin enough to remove.

CAUTION:

Never scratch the cylinder head.

JPBIA1365ZZ

JPBIA4477ZZ

PBIC3210J

EM-276

< UNIT DISASSEMBLY AND ASSEMBLY >

[MR EXCEPT FOR NISMO RS MODELS]

CYLINDER HEAD

8. If necessary, follow the procedure below and remove the guide.
a. Heat cylinder head to 110 – 130 

°C by soaking it in heated oil.

b. Drive out the valve guide from combustion chamber side using a

valve guide drift (commercial service tool: for inner diameter

φ5.0 mm).

CAUTION:

Use protective gloves so as to prevent burns because the

cylinder head is hot.

ASSEMBLY

1. If the valve guide is removed, follow the procedure below to install it.

CAUTION:

Whenever the valve guide is removed, replace it with 0.2 mm (0.008 in) oversized valve guide.

a. Ream cylinder head valve guide hole using a valve guide

reamer (commercial service tool) (A).

b. Heat cylinder head to approximately 110 – 130 

°C by soaking it

in heated oil.

A :  Oil

PBIC3214J

EMQ0116D

Ream finished in-
ner diameter stan-
dard

[when 0.2 mm (0.008 in) oversized 
part is used]

Intake·exhaust

: Refer to 

EM-314, "Cylinder 

Head"

.

PBIC3215J

A :  Oil

PBIC3214J

CYLINDER HEAD

EM-277

< UNIT DISASSEMBLY AND ASSEMBLY >

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c. Using a valve guide drift (commercial service tool: for inner

diameter 

φ5.0 mm), press-fit valve guide (1) from camshaft side

so that the valve guide installation height is dimension H, as

shown in the figure.

CAUTION:

Use protective gloves for preventing burns because the cyl-

inder head (2) is hot.

d. Ream press-fitted valve guide using a valve guide reamer (com-

mercial service tool) (A).

2. If the valve seat is removed, follow the procedure below to install it.

CAUTION:

Whenever the valve seat is removed, replace it with 0.5 mm (0.020 in) oversized valve seat.

a. Ream the cylinder head (1) valve seat mounting position so that

it is the following dimension.

b. Heat cylinder head to 110 – 130 

°C by soaking it in heated oil.

c. Completely chill the service valve seat with dry ice, and press it into cylinder head.

CAUTION:

• Never touch chilled valve seat with bare hands.

• Use protective gloves for preventing burns because the cylinder head is hot.

Dimen-
sion H 
standard

: Refer to 

EM-314, "Cylinder Head"

.

PBIC3217J

Reamer finished standard
Intake·exhaust

: Refer to 

EM-314, "Cylin-

der Head"

.

PBIC3215J

2 : Valve seat

Standard machining dimensions [when 0.5 mm 
(0.020 in) oversized part is used]

: Refer to 

EM-314, "Cylinder Head"

.

PBIC3218J

A :  Oil

PBIC3214J