Nissan Murano Z51. Manual — part 649
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< REMOVAL AND INSTALLATION >
TIMING CHAIN
• Using a suitable drift [outer diameter: 60 mm (2.36 in)], press-
fit oil seal until it becomes flush with front timing chain case
end face.
• Check the garter spring is in position and seal lip is not
inverted.
11. Install water pump cover to front timing chain case.
• Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to water pump cover (1) as shown in
the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-18, "Recommended Chemical Products and Sealants"
.
12. Install front timing chain case as follows:
a.
Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-18, "Recommended Chemical Products and Sealants"
.
b.
Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
PBIC0790E
a :
φ
2.3 - 3.3 mm (0.091 - 0.130 in)
JPBIA1722ZZ
D
: Bolt hole
E
: Protrusion
f
:
φ
2.6 - 3.6 mm (0.102 - 0.142 in)
JPBIA2472ZZ
TIMING CHAIN
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< REMOVAL AND INSTALLATION >
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c.
Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.
• There are two types of mounting bolt. Refer to the following for
locating bolts.
d.
After all bolts tightening, retighten them to the specified torque in
numerical order as shown in the figure.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).
e.
After installing front timing chain case, check the surface height
difference between the following parts on the oil pan (upper)
mounting surface.
• If not within the standard, repeat the installation procedure.
13. Install intake valve timing control covers as follows:
a.
Install new seal rings in shaft grooves.
b.
Being careful not to move seal rings from the installation grooves, align dowel pins on front timing chain
case with the holes to install valve timing control covers.
c.
Tighten mounting bolts in numerical order as shown in the fig-
ure.
14. Install crankshaft pulley as follows:
a.
Install crankshaft pulley, taking care not to damage front oil seal.
• When press-fitting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
b.
Fix crankshaft with the pulley holder (commercial service tool).
c.
Tighten crankshaft pulley bolt.
M8 bolts
: 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts
: Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Standard
Front timing chain case to rear timing chain case:
−
0.14 to 0.14 mm (
−
0.006 to 0.006 in)
JPBIA1640ZZ
SEM943G
A
: Bank 1
B
: Bank 2
C
: Dowel pin hole
JPBIA1639ZZ
: 44.1 N·m (4.5 kg-m, 33 ft-lb)
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< REMOVAL AND INSTALLATION >
TIMING CHAIN
d.
Place a paint mark (A) on crankshaft pulley (1) aligning with the
angle mark (B) on crankshaft pulley bolt (2). Tighten the bolt 90
degrees (angle tightening).
15. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns
smoothly.
16. Install in the reverse order of removal after this step.
Inspection
INFOID:0000000005515949
INSPECTION AFTER REMOVAL
Timing Chain
Check for cracks and any excessive wear 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 and lubricates 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-15, "FOR NORTH AMERICA : Fluids and Lubricants"
(for
North America) or
MA-16, "FOR MEXICO : Fluids and Lubricants"
(for Mexico).
• 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.
• 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:
PBIC4627J
A
: Crack
B
: Wear
JPBIA0091ZZ
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
TIMING CHAIN
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*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Other oils and fluid*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Items
Before starting engine
Engine running
After engine stopped
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