Nissan X-Trail 32. Manual — part 1081
CAMSHAFT
EM-221
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CAMSHAFT
Exploded View
INFOID:0000000010783812
JSBIA3384GB
Exhaust valve timing control position
sensor
O-ring
Camshaft position sensor (PHASE)
O-ring
Camshaft position sensor bracket
Camshaft bracket (No. 2 to 5)
Camshaft bracket (No. 1)
Camshaft sprocket (INT)
Camshaft sprocket (EXH)
Valve lifter
Camshaft (EXH)
Signal plate (EXH)
Signal plate (INT)
Camshaft (INT)
Comply with the installation procedure
when tightening. Refer to
Comply with the installation procedure
when tightening. Refer to
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Always replace after every disassembly.
: Should be lubricated with oil.
: Sealing point
: Select with proper thickness.
EM-222
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CAMSHAFT
Removal and Installation
INFOID:0000000010783813
REMOVAL
NOTE:
This section describes removal/installation procedure of camshaft without removing front cover. If front cover
is removed or installed, removal of camshaft bracket (No. 1) is easier before step 9 and installation is easier
after step 4. Regarding removal and installation of front cover, refer to
.
1.
Release fuel pressure. Refer to
2.
Remove rocker cover. Refer to
EM-190, "Removal and Installation"
3.
Remove camshaft position sensor bracket.
• Loosen mounting bolts in reverse order as shown in the figure.
4.
Remove intake valve timing control cover with the following pro-
cedure:
a.
Disconnect intake valve timing control solenoid valve harness
connector.
b.
Remove intake valve timing control solenoid valve, if necessary.
c.
Loosen bolts in reverse order as shown in the figure.
NOTE:
Do not loosen screws
on the back of the valve timing control
cover.
5.
Pull chain guide between camshaft sprockets out through front cover.
6.
Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a.
Open front splash guard on RH undercover.
: Engine front
JSBIA3385ZZ
ALBIA0839GB
AWBIA1361ZZ
CAMSHAFT
EM-223
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b.
Rotate crankshaft pulley
clockwise and align TDC mark (no
paint)
to timing indicator
on front cover.
c.
At the same time, check that the mating marks
on camshaft
sprockets are located as shown in the figure.
• If not, rotate crankshaft pulley one more turn to align mating
marks to the positions in the figure.
7.
Remove camshaft sprockets with the following procedure:
a.
Line up the mating marks on camshaft sprockets, and paint
indelible mating marks on timing chain link plate.
b.
Push in chain tensioner plunger. Insert a stopper pin (A) into
hole on chain tensioner body to secure chain tensioner plunger
and remove chain tensioner
.
NOTE:
Use approx. 0.5 mm (0.02 in) dia. hard metal pin as a stopper
pin.
c.
Secure hexagonal part of camshaft with a wrench. Loosen cam-
shaft sprocket mounting bolts and remove camshaft sprockets.
CAUTION:
Never rotate crankshaft or camshaft while timing chain is
removed. It causes interference between valve and piston.
NOTE:
Chain tension holding work is not necessary. Crankshaft
sprocket and timing chain do not disconnect structurally while
front cover is attached.
8.
Loosen mounting bolts in reverse order as shown in the figure,
and remove camshaft brackets and camshafts.
• Remove camshaft bracket (No. 1) by slightly tapping it with a
plastic hammer.
: Paint mark (Not use for service)
JSBIA3308ZZ
: Camshaft sprocket (INT)
: Camshaft sprocket (EXH)
JSBIA3357ZZ
JSBIA3376ZZ
ALBIA0844GB
: Intake side
: Exhaust side
: Engene front
ALBIA0846GB
EM-224
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CAMSHAFT
9.
Remove valve lifters.
• Identify installation positions, and store them without mixing them up.
INSTALLATION
CAUTION:
Do not reuse O-rings.
1.
Install valve lifters.
• Install them in the original positions.
2.
Install camshafts.
• Distinction between intake and exhaust camshafts is per-
formed with the different shapes of rear end.
• Install camshafts so that camshaft dowel pins
on the front
side are positioned (
) as shown in the figure.
3.
Install camshaft brackets with the following procedure:
a.
Remove foreign material completely from camshaft bracket backside and from cylinder head installation
face.
b.
Install camshaft brackets aligning the identification marks on
upper surface as shown in the figure.
NOTE:
Install so that identification mark can be correctly read when
viewed from the exhaust side.
c.
Install camshaft bracket (No. 1) with the following procedure:
i.
Apply liquid gasket to camshaft bracket (No. 1) as shown in the
figure.
Use Genuine Liquid Gasket or equivalent.
CAUTION:
: Camshaft (EXH)
: Camshaft (INT)
JSBIA3386ZZ
: Camshaft (INT)
: Camshaft (EXH)
JSBIA2439ZZ
: Intake side
: Exhaust side
: Engine front
JSBIA2440ZZ
: Engine front
A :
φ
2.0 - 3.0 mm
B : 10.5 mm
JSBIA2441ZZ
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