Nissan Juke F15. Manual — part 634
EM-90
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
CAMSHAFT
b. Cut liquid gasket by prying the position (
) shown in the figure,
and then remove the camshaft bracket.
CAUTION:
• Never damage the mating surface.
• A more adhesive liquid gasket is applied compared to pre-
vious types when shipped, so it should not be forced off
the position not specified.
6. Remove camshafts.
7. Remove valve lifters.
• Identify installation positions, and store them without mixing them up.
8. Remove signal plate from camshaft, if necessary.
INSTALLATION
CAUTION:
Do not reuse O-rings.
1. Install valve lifters.
• Install them in the original positions.
2. Install camshafts.
• Clean camshaft journal to remove any foreign material.
• Distinguish between the intake and the exhaust by looking at
the different shapes of the front and rear ends of the camshaft
or using the identification colors (A) and (B).
• Install camshafts so that camshaft dowel pins (A) on the front
side are positioned as shown in the figure.
NOTE:
Though camshaft does not stop at the positions as shown in
the figure, for the placement of cam nose, it is generally
accepted camshaft is placed for the same direction of the fig-
ure.
3. Install camshaft bracket with the following procedure:
a. Remove foreign material completely from camshaft bracket backside and from cylinder head installation
face.
: Engine front
JPBIA4407ZZ
1
: Camshaft (EXH)
2
: Camshaft (INT)
Identification color
A
B
Camshaft (EXH)
—
Light blue
Camshaft (INT)
Light blue
—
1
: Camshaft (EXH)
2
: Camshaft (INT)
JPBIA4408ZZ
JPBIA4409ZZ
CAMSHAFT
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[MR FOR NISMO RS MODELS]
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b. Apply liquid gasket (A) to camshaft bracket as shown in the fig-
ure.
Use Genuine RTV silicon sealant or equivalent. Refer to
22, "Recommended Chemical Products and Sealants"
.
c. Tighten mounting bolts of camshaft brackets in the following
steps, in numerical order as shown in the figure.
• There are two types of mounting bolts. Refer to the following
for locating bolts.
i.
Tighten mounting bolts in numerical order.
ii.
Tighten mounting bolts in numerical order.
iii. Tighten mounting bolts in numerical order.
CAUTION:
After tightening mounting bolts of camshaft brackets, be sure to wipe off excessive liquid gasket
from the mating surface of cylinder head.
4. Install the camshaft sprocket to the camshaft with the following procedure.
b
: 4.0 - 5.6 mm (0.157 - 0.220 in)
c
:
φ 3.4 - 4.4mm (0.134 - 0.173 in)
: Engine front
: Engine outside
JPBIA4410ZZ
: Engine front
M6 bolts [thread length: 57.5 mm (2.264 in)]
: 13, 14, and 15 in the figure
M6 bolts [thread length: 35.0 mm (1.378 in)]
: Except the above
: 1.96 N·m (0.20 kg-m, 17 in-lb)
: 5.88 N·m (0.60 kg-m, 52 in-lb)
: 9.5 N·m (0.97 kg-m, 84 in-lb)
JPBIA4406ZZ
EM-92
< UNIT DISASSEMBLY AND ASSEMBLY >
[MR FOR NISMO RS MODELS]
CAMSHAFT
a. When the camshaft sprocket (INT) (2) and camshaft sprocket
(EXH) (3) is removed, refer to the paint mark (A) put according
to step “3”. Securely align the knock pin and the pin hole, and
then install them.
b. Tighten bolts in the following steps.
• Secure the hexagonal part of camshaft using wrench to tighten mounting bolt.
i.
Tighten camshaft mounting bolt.
ii.
Turn 30 degrees clockwise (angle tightening).
CAUTION:
Check the tightening angle by using an angle wrench [SST:
KV10112100 (BT8653-A)] (B) or protractor. Never judge by
visual inspection without an angle wrench.
5. Install timing chain and related parts. Refer to
.
6. Inspect and adjust valve clearance. Refer to
EM-14, "Inspection and Adjustment"
7. Install remaining parts in the reverse order of removal.
Inspection
INFOID:0000000012197298
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 journal of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.
2. Set dial indicator (A) vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the
camshaft runout on dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1
: Camshaft bracket
JPBIA4404ZZ
: 35.0 N·m (3.6 kg-m, 26 ft-lb)
1 : Camshaft sprocket
A : Camshaft hexagonal part
JPBIA4412ZZ
Standard and Limit : Refer to
.
PBIC3177J
CAMSHAFT
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1. Measure the camshaft cam height with a micrometer (A).
2. If it exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL OUTER DIAMETER
Measure the outer diameter of camshaft journal with a micrometer
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with specified torque. Refer to
EM-89, "Removal and Installation"
• Measure the inner diameter of camshaft bracket with a bore gauge
(A).
CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)
• If it exceeds the limit, replace camshaft or cylinder head, or both.
NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly.
Camshaft End Play
1. Install camshaft in cylinder head. Refer to
EM-89, "Removal and Installation"
Standard and Limit : Refer to
.
PBIC3178J
Standard
: Refer to
PBIC3179J
B
: Measuring direction of inner diameter
Standard
: Refer to
PBIC3180J
Standard and Limit : Refer to
.
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