Nissan Murano Z51 (2008 year). Manual — part 176
ENGINE ASSEMBLY
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< REMOVAL AND INSTALLATION >
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1.
Install engine slingers into front of cylinder head (bank 1) (3) and
rear of cylinder head (bank 2) (2).
2.
Remove power steering oil pump, power steering piping and power steering bracket from engine, tran-
saxle and transfer assembly. Refer to
.
3.
Disconnect vacuum hoses of front engine mounting insulator.
4.
Disconnect vacuum hoses of rear engine mounting insulator. [With Vacuum Tube (rear) Models]
5.
Lift with hoist the engine, the transaxle and the transfer assembly and front suspension member.
CAUTION:
• Before and during this lifting, always check if any harnesses are left connected.
• Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.
6.
Remove rear torque rod and rear torque rod bracket.
7.
Remove each engine mounting insulator and each engine mounting bracket from engine, transaxle and
front suspension member.
8.
Separate engine, transaxle and transfer assembly from front suspension member.
CAUTION:
• Before and during this lifting, always check if any harnesses are left connected.
• Avoid damage to and oil/grease smearing or spills onto engine mounting insulator.
9.
Remove exhaust manifold. Refer to
.
10. Remove transfer. Refer to
11. Separate engine and transaxle assembly. Refer to
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
• Never allow engine mounting insulator to be damage and careful no oil gets on it.
• Check all mounting insulators are seated properly, then tighten mounting nuts and bolts.
Preparation
1.
Install the engine mounting bracket (RH) to the engine as follows:
1
: Engine rear slinger
4
: Engine front slinger (upper)
5
: Engine front slinger (lower)
: Engine front
JPBIA1729ZZ
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EM-82
< REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
a.
Tighten the bolt No. 7 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
2.
Install the engine mounting bracket (front) to the engine as follows:
a.
Tighten the bolt No. 4 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
3.
Install the engine mounting bracket (rear) to the engine as follows:
a.
Tighten the bolt No. 4 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
4.
Install the rear torque rod bracket to the engine as follows:
: Vehicle front
JPBIA1730ZZ
: Engine front
JPBIA1744ZZ
: Engine front
JPBIA1745ZZ
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ENGINE ASSEMBLY
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a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
5.
Install the engine mounting insulator (LH) to the transaxle as follows:
a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
6.
Install the engine mounting insulator (front) to the front suspension member as follows:
a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
7.
Install the engine mounting insulator (rear) to the front suspension member as follows:
a.
Tighten the bolt No. 4 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
8.
Install the rear torque rod to the front suspension member as follows:
: Engine front
JPBIA1733ZZ
: Vehicle front
JPBIA1734ZZ
: Vehicle front
JPBIA1735ZZ
: Vehicle front
JPBIA1746ZZ
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EM-84
< REMOVAL AND INSTALLATION >
ENGINE ASSEMBLY
a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
9.
Install the engine mounting brackets (front and rear) to the engine mounting insulators (front and rear).
10. Install the engine mounting insulator (LH) to the front suspension member.
• Tighten the bolts in numerical order as shown in the figure.
11. Install the rear torque rod to the rear torque rod bracket.
12. Install the vacuum tube (front) as follows:
a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
With vacuum tube (rear) models
13. Install the vacuum tube (rear) as follows:
a.
Tighten the bolt No. 3 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
Installation
1.
Install the engine mounting insulator (RH) as follows:
: Vehicle front
JPBIA1738ZZ
: Vehicle front
JPBIA1739ZZ
: Engine front
JPBIA1740ZZ
: Engine front
JPBIA1747ZZ
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ENGINE ASSEMBLY
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a.
Tighten the bolt No. 1 as shown in the figure. (temporarily)
b.
Tighten the bolts No. 2, 3 in numerical order as shown in the fig-
ure. (specified torque)
c.
Tighten the bolt No. 1 as shown in the figure. (specified torque)
d.
Tighten the bolts No. 4, 5, 6 in numerical order as shown in the
figure. (specified torque)
2.
Install the upper torque rod as follows:
a.
Tighten the bolt No. 2 as shown in the figure. (temporarily)
b.
Tighten the bolts in numerical order as shown in the figure.
(specified torque)
AWD : Inspection
INFOID:0000000003372983
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-15, "FOR NORTH AMERICA : Fluids and Lubricants"
(for
North America) or
MA-16, "FOR MEXICO : 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.
• Warm up engine thoroughly to check there is no leakage of fuel, exhaust gases, 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:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
: Vehicle front
JPBIA1742ZZ
: Vehicle front
JPBIA1743ZZ
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Other oils and fluid*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
Exhaust gases
—
Leakage
—
Revision: 2008 October
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EM-86
< DISASSEMBLY AND ASSEMBLY >
ENGINE STAND SETTING
DISASSEMBLY AND ASSEMBLY
ENGINE STAND SETTING
Setting
INFOID:0000000003304145
NOTE:
Explained here is how to disassemble with engine stand supporting transaxle surface. When using different
type of engine stand, note with difference in steps and etc.
1.
Remove the engine assembly from the vehicle. Refer to
(2WD models) or
(AWD models).
2.
Remove the parts that may restrict installation of engine to widely use engine stand.
NOTE:
The procedure is described assuming that you use a widely use engine stand holding the surface, to
which transaxle is installed.
• Remove drive plate. Fix crankshaft pulley with the pulley holder (commercial service tool), and remove
mounting bolts.
• Loosen mounting bolts in diagonal order.
• Check for deformation or damage drive plate.
CAUTION:
• Never disassemble drive plate.
• Never place drive plate with signal plate facing down.
• When handling signal plate, take care not to damage or scratch it.
• Handle signal plate in a manner that prevents it from becoming magnetized.
3.
Remove pilot converter using the pilot bushing puller (SST) if
necessary.
4.
Lift the engine with hoist to install it onto the widely use engine stand.
CAUTION:
Use an engine stand that has a load capacity [220 kg (485 lb) or more] large enough for supporting
the engine weight.
• If the load capacity of the stand is not adequate, remove the following parts beforehand to reduce the
potential risk of overturning the stand.
- Remove intake manifold collector. Refer to
- Remove intake manifold. Refer to
- Remove fuel injector and fuel tube assembly. Refer to
.
- Remove ignition coil. Refer to
- Remove rocker cover. Refer to
- Remove exhaust manifold. Refer to
- Other removable brackets.
NOTE:
SEM005G
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ENGINE STAND SETTING
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The figure shows an example of widely use engine stand (A)
that can hold mating surface of transaxle with drive plate
removed.
CAUTION:
Before removing the hanging chains, check the engine
stand is stable and there is no risk of overturning.
5.
Drain engine oil. Refer to
.
6.
Drain engine coolant by removing water drain plugs (A) and (B)
from cylinder block both sides as shown in the figure.
NOTE:
For Canada, water drain plug (A) in the figure is not water drain
plug but block heater. Refer to
.
JPBIA0190ZZ
C
: Plug
D
: Connector bolt
Tightening torque
: Refer to
.
PBIC2487E
Revision: 2008 October
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EM-88
< DISASSEMBLY AND ASSEMBLY >
ENGINE UNIT
ENGINE UNIT
Disassembly
INFOID:0000000003304146
1.
Remove intake manifold collector. Refer to
2.
Remove intake manifold. Refer to
3.
Remove exhaust manifold. Refer to
.
4.
Remove oil pan (lower and upper). Refer to
5.
Remove ignition coil, spark plug and rocker cover. Refer to
6.
Remove fuel injector and fuel tube. Refer to
7.
Remove timing chain and rear timing chain case. Refer to
.
8.
Remove camshaft. Refer to
9.
Remove cylinder head. Refer to
Assembly
INFOID:0000000003304147
Assembly in the reverse order of disassembly.
Revision: 2008 October
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REAR TIMING CHAIN CASE
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REAR TIMING CHAIN CASE
Exploded View
INFOID:0000000003304169
1.
Timing chain tensioner (secondary)
(bank 2)
2.
Internal chain guide
3.
Timing chain tensioner (secondary)
(bank 1)
4.
Oil temperature sensor
5.
Camshaft sprocket (EXH)
6.
O-ring
7.
Timing chain (secondary)
8.
Timing chain (primary)
9.
Camshaft sprocket (INT)
10. Slack guide
11. Timing chain tensioner (primary)
12.
Crankshaft sprocket
13. Rear timing chain case
14. Tension guide
15.
O-ring
16. O-ring
17. O-ring
18.
Front timing chain case
JPBIA2471GB
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EM-90
< DISASSEMBLY AND ASSEMBLY >
REAR TIMING CHAIN CASE
Disassembly and Assembly
INFOID:0000000003685479
DISASSEMBLY
1.
Remove front timing chain case and timing chain. Refer to
.
2.
Remove water pump. Refer to
.
3.
Remove oil pans (upper and lower) and oil strainer. Refer to
.
4.
Remove rear timing chain case as follows:
a.
Loosen and remove mounting bolts in the reverse order as
shown in the figure.
b.
Cut liquid gasket using the seal cutter [SST: KV10111100 (J-
37228)] and remove rear timing chain case.
CAUTION:
• Never remove plate metal cover (1) of oil passage.
• After removal, handle rear timing chain case carefully so
it does not tilt, cant, or warp under a load.
5.
Remove O-rings (1) from cylinder block.
6.
Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.
a.
Remove camshaft brackets (No. 1). Refer to
19.
Valve timing control cover gasket
(bank 1)
20. Valve timing control cover (bank 1) 21.
Intake valve timing control solenoid valve
(bank 1)
22. Seal ring
23. Water pump cover
24.
Front oil seal
25. Crankshaft pulley
26. Crankshaft pulley bolt
27.
Intake valve timing control solenoid valve
(bank 2)
28. Valve timing control cover (bank 2)
29.
Valve timing control cover gasket
(bank 2)
A.
B.
Refer to
for symbols in the figure.
JPBIA1641ZZ
JPBIA0088ZZ
: Engine front
JPBIA0090ZZ
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REAR TIMING CHAIN CASE
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b.
Remove timing chain tensioners (secondary) (1) with a stopper
pin (B) attached.
7.
Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases, and oppo-
site mating surfaces.
• Remove old liquid gasket from bolt hole (B) and thread.
ASSEMBLY
1.
Install rear timing chain case as follows:
• Install new O-rings (1) onto cylinder block.
a.
Apply liquid gasket with the tube presser (commercial service tool) to rear timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-17, "Recommended Chemical Prod-
.
CAUTION:
• For “A” in the figure, completely wipe out liquid gasket extended on a portion touching at engine
coolant.
A
: Bank 1
B
: Bank 2
JPBIA1727ZZ
A
: Remove sticking old liquid gasket
JPBIA0051ZZ
: Engine front
JPBIA0090ZZ
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EM-92
< DISASSEMBLY AND ASSEMBLY >
REAR TIMING CHAIN CASE
• Apply liquid gasket on installation position of water pump and cylinder head very completely.
b.
Align rear timing chain case with dowel pins (bank 1 and bank 2) on cylinder block and install rear timing
chain case.
• Check O-rings stay in place during installation to cylinder block and cylinder head.
c.
Tighten mounting bolts in numerical order as shown in the fig-
ure.
• There are two types of mounting bolts. Refer to the following
for locating bolts.
d.
After all bolts tightening, retighten them to the specified in numerical order as shown in the figure.
• If liquid gasket protrudes, wipe it off immediately.
e.
After installing rear timing chain case (1), 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.
Bolt length:
Bolt position
20 mm (0.79 in)
: 1, 2, 3, 6, 7, 8, 9, 10
16 mm (0.63 in)
: Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
PBIC2680E
JPBIA1641ZZ
2
: Cylinder block
Standard
Rear timing chain case to cylinder block:
−
0.24 to 0.14 mm (
−
0.009 to 0.006 in)
JPBIA1944ZZ
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REAR TIMING CHAIN CASE
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2.
Install water pump with new O-rings. Refer to
.
3.
Install front timing chain case and timing chain. Refer to
4.
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.
5.
Install in the reverse order of removal after this step.
Standard
Front timing chain case to rear timing chain case:
−
0.14 to 0.14 mm (
−
0.006 to 0.006 in)
SEM943G
Revision: 2008 October
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EM-94
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
CAMSHAFT
Exploded View
INFOID:0000000003304176
Removal and Installation
INFOID:0000000003304361
REMOVAL
1.
Remove front timing chain case, camshaft sprocket, timing chain and rear timing chain case. Refer to
1.
Camshaft bracket (No. 3, 4)
2.
Camshaft bracket (No. 2)
3.
Seal washer
4.
Camshaft bracket (No. 1)
5.
Dowel pin
6.
Camshaft (EXH) (bank 1)
7.
Camshaft (INT) (bank 1)
8.
Valve lifter
9.
Timing chain tensioner (secondary)
(bank 1)
10. Spring
11.
Plunger
12.
Timing chain tensioner (secondary)
(bank 2)
13. Cylinder head (bank 2)
14.
Dowel pin
15. Camshaft sensor bracket (bank 2)
16. Camshaft (EXH) (bank 2)
17.
Camshaft signal plate (bank 2)
18. Camshaft (INT) (bank 2)
19. Cylinder head (bank 1)
20.
Camshaft signal plate (bank 1)
21. Camshaft sensor bracket (bank 1)
A.
Refer to
Refer to
for symbols in the figure.
JPBIA1719GB
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CAMSHAFT
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2.
Loosen camshaft sensor bracket bolts in the reverse order as
shown in the figure.
NOTE:
The order of loosening bolts in the same for bank 1 and bank 2.
3.
Remove camshaft brackets.
• Mark camshafts, camshaft brackets and bolts so they are placed in the same position and direction for
installation.
• Equally loosen camshaft bracket bolts in several steps in the
reverse order as shown in the figure.
4.
Remove camshafts.
5.
Remove valve lifters.
• Identify installation positions, and store them without mixing them up.
6.
Remove timing chain tensioners (secondary) (1) from cylinder
head.
• Remove timing chain tensioner (secondary) with its stopper
pin (C) attached.
NOTE:
Stopper pin was attached when timing chain (secondary) was
removed.
INSTALLATION
: Engine front
JPBIA1960ZZ
: Engine front
JPBIA0257ZZ
A
: Bank 1
B
: Bank 2
JPBIA0121ZZ
Revision: 2008 October
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EM-96
< DISASSEMBLY AND ASSEMBLY >
CAMSHAFT
1.
Install timing chain tensioners (secondary) (1) on both sides of
cylinder head.
• Install timing chain tensioner (secondary) with its stopper pin
(C) attached.
• Install timing chain tensioner (secondary) with sliding part fac-
ing downward on cylinder head (bank 1), and with sliding part
facing upward on cylinder head (bank 2).
2.
Install valve lifters.
• Install it in the original position.
3.
Install camshafts.
• Follow your identification marks made during removal, or fol-
low the identification marks that are present on new camshafts
for proper placement and direction.
• Install camshaft so dowel pin (A) on front end face are posi-
tioned as shown in the figure. (No. 1 cylinder TDC on its com-
pression stroke)
NOTE:
Though camshaft does not stop at the portion as shown in the
figure, for the placement of cam nose, it is generally accepted
camshaft is placed for the same direction of the figure.
4.
Install camshaft brackets.
• Remove foreign material completely from camshaft bracket backside and from cylinder head installation
face.
A
: Bank 1
B
: Bank 2
JPBIA0121ZZ
: Engine front
Bank
INT/EXH
Dowel pin
(1)
Paint marks
M1 (D)
M2 (E)
M3 (C)
1
EXH (B)
Yes
No
Light blue
Light blue
INT (A)
Yes
Pink
No
Light blue
2
INT (A)
Yes
Pink
No
Light blue
EXH (B)
Yes
No
Light blue
Light blue
JPBIA1749ZZ
JPBIA2368ZZ
Revision: 2008 October
2009 Murano
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