Nissan Juke (2012 year). Service Repair Manual — part 112
EM-74
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TIMING CHAIN
a.
Fix crankshaft pulley (1) with a pulley holder (commercial ser-
vice tool) (A), loosen crankshaft pulley bolt, and locate bolt seat-
ing surface at 10 mm (0.39 in) from its original position.
CAUTION:
Never remove the crankshaft pulley bolt as they will be
used as a supporting point for the pulley puller [SST:
KV11103000 (
—
)].
b.
Attach a pulley puller [SST: KV11103000 (
—
)] (A) in the M6
thread hole on crankshaft pulley (1), and remove crankshaft pul-
ley.
5.
Remove oil pan (lower). Refer to
NOTE:
If crankshaft sprocket and oil pump drive component are not removed, this step is unnecessary.
6.
Remove intake valve timing control solenoid valve and exhaust valve timing control valve.
7.
Remove drive belt auto-tensioner. Refer to
8.
Remove front cover with the following procedure:
a.
Loosen mounting bolts in reverse order as shown in the figure.
PBIC3961E
PBIC3962E
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b.
Cut liquid gasket by prying the position (
) shown in the figure,
and then remove the front cover.
CAUTION:
• Be careful not to 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.
9.
Remove front oil seal from front cover.
CAUTION:
Be careful not to damage front cover.
• Lift up front oil seal using a screwdriver.
10. Remove valve timing control cover, if necessary.
• Loosen mounting bolts in reverse order as shown in the figure.
NOTE:
Disregard the numerical order No.1 in removal.
11. Remove timing chain tensioner with the following procedure:
a.
Insert a wire (A) (e.g. clip) into the top groove with the timing
chain tensioner plunger pressed.
NOTE:
Timing chain tensioner plunger is securely fixed by inserting a
wire (e.g. clip).
b.
Remove timing chain tensioner (1).
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EM-76
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[MR16DDT ]
TIMING CHAIN
12. Remove slack guide (2), tension guide (3) and timing chain (1).
CAUTION:
Never rotate each crankshaft and camshaft individually
while timing chain is removed. It causes interference
between valve and piston.
NOTE:
If timing chain is difficult to remove, remove camshaft sprocket
(EXH) first to remove timing chain.
13. Remove crankshaft sprocket and oil pump drive component with the following procedure:
a.
Push oil pump drive chain tensioner (1) in the direction show in
the figure.
b.
Insert a stopper pin (A) into the body hole (B).
c.
Remove oil pump chain tensioner.
• When the holes on lever and tensioner body cannot be
alirned, align these holes by slightly moving the oil pump chain
tensioner slack guide.
d.
Hold the WAF part of oil pump shaft [WAF: 10 mm (0.39 in)] (A),
and then loosen the oil pump sprocket bolt and remove it.
CAUTION:
• Secure the oil pump shaft with the WAF part.
• Never loosen the oil pump sprocket bolt by tightening the
oil pump drive chain.
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1
: Oil pan (upper)
: Engine front
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14. Remove tension guide (front cover side) from front cover, if necessary.
INSTALLATION
CAUTION:
Do not reuse O-rings.
NOTE:
The figure shows the relationship between the matching mark on
each timing chain and that on the corresponding sprocket, with the
components installed.
1.
Check that crankshaft key points straight up.
2.
If the tension guide (front cover side) is removed, install it to the front cover.
CAUTION:
Check the joint condition by sound or feeling.
3.
Install crankshaft sprocket (2), oil pump sprocket (3), and oil
pump drive chain (1).
• Install it by aligning matching marks on each sprockets and oil
pump drive chain.
• If these matching marks are not aligned, rotate the oil pump
shaft slightly to correct the position.
CAUTION:
Check matching mark position of each sprockets after
installing the oil pump drive chain.
1
: Timing chain
2
: Camshaft sprocket (EXH)
3
: Slack guide
4
: Timing chain tensioner
5
: Crankshaft sprocket
6
: Oil pump drive chain
7
: Oil pump sprocket
8
: Oil pump drive chain tensioner
9
: Tension guide
10
: Camshaft sprocket (INT)
A
: Matching mark (dark blue link)
B
: Matching mark (outer groove)
C
: Crankshaft key position (straight up)
D
: Matching mark (stamping)
E
: Matching mark (white link)
F
: Matching mark (yellow link)
G
: Matching mark (outer groove)
A
: Matching mark (stamping)
B
: Matching mark (yellow link)
C
: Matching mark (dark blue link)
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TIMING CHAIN
4.
Hold the WAF part of oil pump shaft [WAF: 10 mm (0.39 in)] (A),
and then tighten the oil pump shaft sprocket bolt.
CAUTION:
• Secure the oil pump shaft with the WAF part.
• Never loosen the oil pump shaft sprocket bolt by tighten-
ing the oil pump drive chain.
5.
Install oil pump chain tensioner (1).
• Fix the face oil pump tensioner at the most compressed posi-
tion using a stopper pin (A), and then install it.
• Securely pull out (
) the stopper pin after installing the oil
pump chain tensioner.
• Check matching mark position of oil pump drive chain and
each sprockets again.
1
: Oil pan (upper)
: Engine front
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6.
Align the matching marks of each sprockets with the matching
marks of timing chain.
• If these matching marks are not aligned, rotate the camshaft
slightly by holding the hexagonal portion to correct the posi-
tion.
CAUTION:
Check matching mark position of each sprocket and timing
chain again after installing the timing chain.
7.
Install the slack guide (2) and the tension guide (3).
8.
Install timing chain tensioner.
• Fix the plunger at the most compressed position using a stopper pin, and then install it.
• Securely pull out the stopper pin after installing the timing chain tensioner.
CAUTION:
• After installing tensioner on the cam side, pull out lock pin.
• If plunger pops out after pulling out lock pin without installing the tensioner to the engine, never
use the tensioner. (If used, the plunger does not slide smoothly.)
• To reuse tensioner on the cam side:
After installation, pick up and move ratchet clip toward the tip of the plunger and position the
tensioner parallel to the groove of the plunger.
9.
Check matching mark position of timing chain and each sprockets again.
10. Install front oil seal. Refer to
EM-94, "FRONT OIL SEAL : Removal and Installation"
1
: Camshaft sprocket (EXH)
2
: Camshaft sprocket (INT)
3
: Timing chain
A
: Matching mark (dark blue link)
B
: Matching mark (outer groove)
C
: Matching mark (outer groove)
D
: Matching mark (white link)
E
: Matching mark (stamping)
JPBIA4402ZZ
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: Timing chain
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EM-80
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[MR16DDT ]
TIMING CHAIN
11. Install front cover with the following procedure:
a.
Install valve timing control cover, if removed.
• Apply a continuous bead of liquid gasket (E) with a tube
presser (commercial service tool) to valve timing control cover
as shown in the figure.
NOTE:
The start and end of gasket application must overlap 5mm or
more one another.
• Tighten mounting bolts in numerical order as shown in the fig-
ure.
NOTE:
Tighten bolt the No.1 in two step. The numerical order No.6
shows the second step.
b.
Install new O-ring to cylinder block.
CAUTION:
Do not reuse O-rings.
1
: Front cover
2
: Valve timing control cover
A
: Start and end og gasket application
B
: Liquid gasket application area
E
: Gasket
c
: 4.0 - 5.6 mm (0.157 - 0.220 in)
d
:
φ
3.4 - 4.4 mm (0.134 - 0.173 in)
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TIMING CHAIN
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c.
Apply a continuous bead of liquid gasket (D) with a tube presser
(commercial service tool) to front cover as shown in the figure.
Use Genuine RTV Silicon Sealant or equivalent. Refer to
22, "Recommended Chemical Products and Sealants"
.
d.
Check that matching marks of timing chain and each sprockets are still aligned. Then install front cover.
CAUTION:
• Check O-ring on cylinder block is correctly installed.
• Be careful not to damage front oil seal by interference with front end of crankshaft.
e.
Install front cover, and tighten mounting bolts in numerical order
as shown in the figure.
• Refer to the following for the installation position of bolts.
CAUTION:
Attaching should be done within 5 minutes after liquid gas-
ket application.
f.
After all bolts are tightened, retighten them to specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking.
12. Install crankshaft pulley with the following procedure:
a.
When inserting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
CAUTION:
Never damage front oil seal lip section.
1
: Cylinder head
2
: Front cover
A
: Liquid gasket application area
b
: 4.0 - 5.6 mm (0.157 - 0.220 in)
c
:
φ
3.4 - 4.4 mm (0.134 - 0.173 in)
: Engine outside
JPBIA4403ZZ
M6 bolt
: No. 1
M10 bolts
: No. 6, 7, 10, 13, 21
M12 bolts
: No. 2, 4, 8, 11
M8 bolts
: Except the above
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EM-82
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[MR16DDT ]
TIMING CHAIN
b.
Secure crankshaft pulley (1) with a pulley holder (commercial
service tool) (A).
c.
Apply new engine oil to thread and seat surfaces of crankshaft
pulley bolt.
d.
Tighten crankshaft pulley bolt.
e.
Put a paint mark (B) on crankshaft pulley (2), matching with any
one of six easy to recognize angle marks (A) on crankshaft pul-
ley bolt (1) flange.
f.
Turn another 60 degrees clockwise (angle tightening).
• Check the tightening angle with movement of one angle mark.
g.
Check that crankshaft rotates clockwise smoothly.
13. Install remaining parts in the reverse order of removal.
Inspection
INFOID:0000000007577473
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks (A) and any excessive wear (B) at link plates and
roller links of timing chain. Replace timing chain if necessary.
INSPECTION AFTER INSTALLATION
Inspection for Leakage
The following are procedures for checking fluids leakage, lubricates leakage, and exhaust gases leakage.
• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to
MA-10, "Fluids and Lubricants"
.
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.
• Warm up engine thoroughly to check there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
: 29.4 N·m (3.0 kg-m, 22 ft-lb)
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• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
specified level, if necessary.
Summary of the inspection items:
*: Power steering fluid, brake fluid, etc.
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Transmission /
transaxle fluid
AT & CVT Models
Leakage
Level / Leakage
Leakage
MT Models
Level / Leakage
Leakage
Level / Leakage
Other oils and fluids*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gases
—
Leakage
—
Revision: 2011 October
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EM-84
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[MR16DDT ]
CAMSHAFT
CAMSHAFT
Exploded View
INFOID:0000000007577474
JSBIA1181GB
1.
Exhaust valve timing control position sensor
2.
O-ring
3.
Camshaft bracket
4.
Camshaft (EXH)
5.
Camshaft sprocket (EXH)
6.
Camshaft sprocket (INT)
7.
Camshaft (INT)
8.
Valve lifter (EXH)
9.
Valve lifter (INT)
10. Signal plate (INT)
11
Signal plate (EXH)
12. O-ring
13. Camshaft position sensor (PHASE)
A.
Comply with the assembly 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.
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Removal and Installation
INFOID:0000000007577475
CAUTION:
The rotating direction in the text indicates all directions seen from the engine front.
REMOVAL
1.
Remove the following parts.
• Intake manifold: Refer to
• Rocker cover: Refer to
• Front cover and timing chain related parts: Refer to
NOTE:
Removal of oil pump drive related part is not necessary.
2.
Remove camshaft position sensor (PHASE) and exhaust valve timing control position sensor from cam-
shaft bracket.
CAUTION:
• Handle camshaft position sensor (PHASE) and exhaust valve timing control position sensor
carefully and avoid impacts.
• Never disassemble camshaft position sensor (PHASE) and exhaust valve timing control position
sensor.
• Never place sensor where it is exposed to magnetism.
3.
Put the matching mark (A) on the camshaft sprocket (INT) (2),
camshaft sprocket (EXH) (3) and the camshaft bracket (1) as
shown in the figure.
NOTE:
It prevents the knock pin of the camshaft (INT) from engaging
with the incorrect pin hole when installing the camshaft sprocket
(INT).
4.
Remove camshaft sprockets (INT and EXH).
• Secure hexagonal part (A) of camshaft with a wrench. Loosen
camshaft sprocket mounting bolts and remove camshaft
sprocket.
CAUTION:
• Never rotate crankshaft or camshaft while timing chain
is removed. It causes interference between valve and
piston.
• Never loosen the mounting bolts with securing anything
other than the camshaft hexagonal part or with tension-
ing the timing chain.
5.
Remove camshaft bracket with the following procedure:
a.
Loosen mounting bolts in reverse order as shown in the figure.
JPBIA4404ZZ
1
: Camshaft sprocket (INT)
2
: Camshaft sprocket (EXH)
JPBIA4405ZZ
: Engine front
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EM-86
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[MR16DDT ]
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)
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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)
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EM-88
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[MR16DDT ]
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-12, "Inspection and Adjustment"
7.
Install remaining parts in the reverse order of removal.
Inspection
INFOID:0000000007577476
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
.
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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-85, "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-85, "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
.
Revision: 2011 October
2012 JUKE
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