Nissan Murano Z50 (2006 year). Manual - part 123

OIL PAN AND OIL STRAINER

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INSPECTION AFTER INSTALLATION
Inspection for Leaks

The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.

●

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, "RECOMMENDED 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
leakage 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 make sure 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.

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

—

EM-38

IGNITION COIL

Revision: 2006 August

2006 Murano

IGNITION COIL

PFP:22448

Removal and Installation

NBS0029H

REMOVAL

1.

Remove engine cover. Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

2.

Remove front wiper arm and extension cowl top (lower and upper). Refer to 

WW-4, "FRONT WIPER AND

WASHER SYSTEM"

 and 

EI-20, "COWL TOP"

 .

3.

Remove intake manifold collectors (upper and lower), to remove ignition coil (right bank). Refer to 

EM-18,

"INTAKE MANIFOLD COLLECTOR"

 .

4.

Move aside harness, harness bracket, and hoses located above ignition coil.

5.

Disconnect harness connector from ignition coil.

6.

Remove ignition coil.

CAUTION:

Do not drop or shock it.

INSTALLATION

Install in the reverse order of removal.

1.

Ignition coil

2.

Spark plug

3.

Rocker cover (left bank)

A.

Left bank

PBIC4359E

SPARK PLUG (PLATINUM-TIPPED TYPE)

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SPARK PLUG (PLATINUM-TIPPED TYPE)

PFP:22401

Removal and Installation

NBS0029I

REMOVAL

1.

Remove engine cover. Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

2.

Remove ignition coil. Refer to 

EM-38, "IGNITION COIL"

 .

3.

Remove spark plug using spark plug wrench (commercial ser-
vice tool).

CAUTION:

Do not drop or shock it.

INSPECTION AFTER REMOVAL

Use the standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions 
such as:

●

Frequent engine starts

●

Low ambient temperatures

The cold type spark plug is suitable when spark plug knock occurs with the standard type spark plug under 
conditions such as:

●

Extended highway driving

●

Frequent high engine revolution

1.

Ignition coil

2.

Spark plug

3.

Rocker cover (left bank)

A.

Left bank

PBIC4359E

SEM294A

Make

NGK

Standard type

PLFR5A-11

Hot type

PLFR4A-11

Cold type

PLFR6A-11

EM-40

SPARK PLUG (PLATINUM-TIPPED TYPE)

Revision: 2006 August

2006 Murano

CAUTION:

●

Do not drop or shock spark plug.

●

Do not use wire brush for cleaning.

●

If plug tip is covered with carbon, spark plug cleaner may
be used.

●

Checking and adjusting plug gap is not required between
change intervals.

INSTALLATION

Install in the reverse order of removal.

Gap (Nominal)

: 1.1 mm (0.043 in)

Cleaner air pressure:

Less than 588 kPa (6 kg/cm

2

 , 85 psi)

Cleaning time:

Less than 20 seconds

SMA773C

SMA806CA

FUEL INJECTOR AND FUEL TUBE

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FUEL INJECTOR AND FUEL TUBE

PFP:16600

Removal and Installation

NBS0029J

CAUTION:

Do not remove or disassemble parts unless instructed as shown in the figure.

REMOVAL

WARNING:

●

Put a “CAUTION: FLAMMABLE” sign in the workshop.

●

Be sure to work in a well ventilated area and furnish workshop with a CO

2

     fire extinguisher.

●

Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

●

To avoid the danger of being scalded, do not drain engine coolant when engine is hot.

1.

Remove engine cover. Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

2.

Release the fuel pressure. Refer to 

EC-78, "FUEL PRESSURE RELEASE"

 .

3.

Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak-
age. Refer to 

CO-9, "Changing Engine Coolant"

 and 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

CAUTION:

Perform this step when the engine is cold.

4.

Remove front wiper arm and extension cowl top panel (lower and upper). Refer to 

WW-4, "FRONT

WIPER AND WASHER SYSTEM"

 and 

EI-20, "COWL TOP"

 .

1.

Quick connector cap

2.

Centralized under-floor piping

3.

Fuel feed hose (with damper)

4.

Fuel tube

5.

Spacer

6.

Clip

7.

O-ring (blue)

8.

Fuel injector

9.

O-ring (brown)

10. O-ring

11.

Fuel damper

PBIC3386E

EM-42

FUEL INJECTOR AND FUEL TUBE

Revision: 2006 August

2006 Murano

5.

Remove radiator cover grilles, air duct (inlet), air cleaner case (upper) with mass air flow sensor and air
duct assembly. Refer to 

EM-16, "AIR CLEANER AND AIR DUCT"

 .

6.

Remove intake manifold collectors (upper and lower). Refer to 

EM-18, "INTAKE MANIFOLD COLLEC-

TOR"

 .

●

Intake manifold collector (upper) should be moved aside with water hoses connected.

7.

Remove fuel feed hose (with damper) from fuel tube.

CAUTION:

●

While hose disconnected, plug it to prevent fuel from
draining.

●

Do not separate fuel damper and fuel feed hose.

8.

When separating fuel feed hose (with damper) and centralized under-floor piping connection, disconnect
quick connector as follows:

a.

Remove quick connector cap from quick connector.

b.

Disconnect quick connector from centralized under-floor piping
as follows:

CAUTION:

Disconnect quick connector by using the quick connector
release [SST: J-45488], not by picking out retainer tabs.

i.

With the sleeve side of quick connector release facing to quick
connector, install the quick connector release onto fuel tube.

ii.

Insert the quick connector release into quick connector until
sleeve contacts and goes no further. Hold quick connector
release on that position.

CAUTION:

Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.

iii.

Draw and pull out quick connector straight from centralized
under-floor piping.

CAUTION:

●

Pull quick connector holding “A” position as shown in
the figure.

●

Do not pull with lateral force applied. O-ring inside quick connector may be damaged.

●

Prepare container and cloth beforehand as fuel will leak out.

PBIC2468E

PBIC1178E

PBIC1179E

PBIC1898E

FUEL INJECTOR AND FUEL TUBE

EM-43

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●

Avoid fire and sparks.

●

Keep parts away from heat source. Especially, be careful when welding is performed around
them.

●

Do not expose parts to battery electrolyte or other acids.

●

Do not bend or twist connection between quick connector and fuel feed hose (with damper) dur-
ing installation/removal.

●

To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.

9.

Disconnect harness connector from fuel injector.

10. Loosen mounting bolts in reverse order as shown in the figure,

and remove fuel tube and fuel injector assembly.

CAUTION:

Do not tilt it, or remaining fuel in pipes may flow out from
pipes.

11. Remove spacers on intake manifold.
12. Remove fuel injector from fuel tube as follows:

a.

Open and remove clip.

b.

Remove fuel injector from fuel tube by pulling straight.

CAUTION:

●

Be careful with remaining fuel that may go out from fuel
tube.

●

Be careful not to damage injector nozzle during removal.

●

Do not bump or drop fuel injector.

●

Do not disassemble fuel injector.

13. Remove fuel damper from fuel tube.

PBIC1899E

SEC999C

PBIC2470E

EM-44

FUEL INJECTOR AND FUEL TUBE

Revision: 2006 August

2006 Murano

INSTALLATION

1.

Install fuel damper.

●

When handling new O-rings, be careful of the following caution:

CAUTION:

●

Handle O-ring with bare hands. Do not wear gloves.

●

Lubricate O-ring with new engine oil.

●

Do not clean O-ring with solvent.

●

Make sure that O-ring and its mating part are free of foreign material.

●

When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not
to twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.

●

Insert new O-ring straight into fuel damper. Do not decenter or twist it.

●

Insert fuel damper straight into fuel tube.

●

Tighten mounting bolts evenly in turn.

●

After tightening mounting bolts, make sure that there is no gap between flange and fuel tube.

2.

Install new O-rings to fuel injector paying attention to the following.

CAUTION:

●

Upper and lower O-ring are different. Be careful not to confuse them.

●

Handle O-ring with bare hands. Never wear gloves.

●

Lubricate O-ring with new engine oil.

●

Do not clean O-ring with solvent.

●

Make sure that O-ring and its mating part are free of foreign material.

●

When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it
quickly into fuel tube.

●

Insert O-ring straight into fuel injector. Do not decenter or twist it.

3.

Install fuel injector to fuel tube as follows:

a.

Insert clip into clip mounting groove on fuel injector.

●

Insert clip so that protrusion “A” of fuel injector matches cutout
“A” of  clip.

CAUTION:

●

Do not reuse clip. Replace it with new one.

●

Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.

b.

Insert fuel injector into fuel tube with clip attached.

●

Insert it while matching it to the axial center.

●

Insert fuel injector so that protrusion “B” of fuel tube matches
cutout “B” of clip.

●

Make sure that fuel tube flange is securely fixed in flange fix-
ing groove on clip.

c.

Make sure that installation is complete by checking that fuel
injector does not rotate or come off.

●

Make sure that protrusions of fuel injectors are aligned with
cutouts of clips after installation.

4.

Install spacers on intake manifold.

5.

Install fuel tube and fuel injector assembly to intake manifold.

Fuel tube side

: Blue

Nozzle side

: Brown

PBIC2545E

FUEL INJECTOR AND FUEL TUBE

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CAUTION:

Be careful not to let tip of injector nozzle come in contact with other parts.

●

Tighten mounting bolts in two steps in numerical order as
shown in figure.

6.

Connect fuel injector harness.

7.

Install intake manifold collectors (upper and lower). Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

8.

Connect fuel feed hose (with damper).

●

Handling procedure of O-ring is the same as that of fuel damper.

●

Insert fuel damper straight into fuel tube.

●

Tighten mounting bolts evenly in turn.

●

After tightening mounting bolts, make sure that there is no gap between flange and fuel tube.

9.

Connect quick connector between fuel feed hose (with damper) and centralized under-floor piping con-
nection with the following procedure:

a.

Make sure no foreign substances are deposited in and around centralized under-floor piping and quick
connector, and no damage on them.

b.

Thinly apply new engine oil around centralized under-floor piping from tip end to spool end.

c.

Align center to insert quick connector straightly into centralized under-floor piping.

●

Insert quick connector to centralized under-floor piping until
top spool is completely inside quick connector, and 2nd level
spool exposes right below quick connector.

CAUTION:

●

Hold “A” position as shown in the figure when inserting
centralized under-floor piping into quick connector.

●

Carefully align center to avoid inclined insertion to pre-
vent damage to O-ring inside quick connector.

●

Insert until you hear a “click” sound and actually feel the
engagement.

●

To avoid misidentification of engagement with a similar
sound, be sure to perform the next step.

d.

Pull quick connector by hand holding “A” position. Make sure it is completely engaged (connected) so that
it does not come out from centralized under-floor piping.

e.

Install quick connector cap to quick connector.

●

Install quick connector cap with arrow on surface facing in
direction of quick connector [fuel feed hose (with damper)
side].

CAUTION:

If quick connector cap cannot be installed smoothly, quick
connector may have not been installed correctly. Check
connection again.

f.

Secure fuel feed hose (with damper) to clamp of quick connector
cap.

10. Install in the reverse order of removal after this step.

 1st step

: 10.1 N·m (1.0 kg-m, 7 ft-lb)

 2nd step

: 23.6 N·m (2.4 kg-m, 17 ft-lb)

SEC999C

PBIC2471E

PBIC1181E

EM-46

FUEL INJECTOR AND FUEL TUBE

Revision: 2006 August

2006 Murano

INSPECTION AFTER INSTALLATION
Check on Fuel Leakage

1.

Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, make sure there
no fuel leakage at connection points.

NOTE:
Use mirrors for checking at points out of clear sight.

2.

Start engine. With engine speed increased, make sure again that there are no fuel leakage at connection
points.

CAUTION:

Do not touch the engine immediately after stopped, as the engine becomes extremely hot.

ROCKER COVER

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ROCKER COVER

PFP:13264

Removal and Installation

NBS0029K

REMOVAL

1.

Remove engine cover. Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

2.

Drain engine coolant, or when water hoses are disconnected, attach plug to prevent engine coolant leak-
age. Refer to 

CO-9, "Changing Engine Coolant"

 and 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

CAUTION:

Perform this step when the engine is cold.

3.

Remove front wiper arm and extension cowl top panel (lower and upper). Refer to 

WW-4, "FRONT

WIPER AND WASHER SYSTEM"

 and 

EI-20, "COWL TOP"

 .

4.

Remove intake manifold collectors (upper and lower). (At the right bank side remove) Refer to 

EM-18,

"INTAKE MANIFOLD COLLECTOR"

 .

5.

Remove ignition coil. Refer to 

EM-38, "IGNITION COIL"

 .

6.

Remove PCV hoses from rocker covers.

7.

Remove PCV valve and O-ring from rocker cover (right bank), if necessary.

8.

Remove oil filler cap from rocker cover (left bank), if necessary.

1.

PCV hose

2.

Oil filler cap

3.

Rocker cover (right bank)

4.

PCV hose

5.

PCV valve

6.

O-ring

7.

Rocker cover gasket (right bank)

8.

PCV hose

9.

Rocker cover gasket (left bank)

10. Rocker cover (left bank)

PBIC2678E

EM-48

ROCKER COVER

Revision: 2006 August

2006 Murano

9.

Loosen mounting bolts in reverse order shown in the figure.

10. Remove rocker cover gaskets from rocker covers.

11. Use a scraper to remove all trances of liquid gasket from cylinder head and camshaft bracket (No. 1).

CAUTION:

Do not scratch or damage the mating surface when cleaning off old liquid gasket.

INSTALLATION

1.

Apply liquid gasket with the tube presser [SST: WS39930000
(

—

)] to joint part among rocker cover, cylinder head and

camshaft bracket (No. 1) as follows:
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"

 .

NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)].

a.

Refer to the figure “a” to apply liquid gasket to joint part of cam-
shaft bracket (No. 1) and cylinder head.

b.

Refer to the figure “b” to apply liquid gasket to the figure “a”
squarely.

2.

Install new rocker cover gasket to rocker cover.

3.

Install rocker cover.

●

Check if rocker cover gasket is not dropped from installation groove of rocker cover.

PBIC1184E

PBIC2474E

ROCKER COVER

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4.

Tighten mounting bolts two steps separately in numerical order
as shown in the figure.

5.

Install oil filer cap to rocker cover (left bank), if removed.

6.

Install new O-ring and PCV valve to rocker cover (right bank), if removed.

7.

Install PCV hoses.

●

Insert PCV hose by 25 to 30 mm (0.98 to 1.18 in) from connector end.

●

When installing, be careful not to twist or come in contact with other parts.

8.

Install in the reverse order of removal after this step.

 1st step

: 1.96 N·m (0.20 kg-m, 17 in-lb)

 2nd step

: 8.33 N·m (0.85 kg-m, 74 in-lb)

PBIC1184E

EM-50

FRONT TIMING CHAIN CASE

Revision: 2006 August

2006 Murano

FRONT TIMING CHAIN CASE

PFP:13599

Removal and Installation

NBS0029L

NOTE:

●

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on vehicle.

●

When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or
installed, remove  oil pans (lower and upper) first. Then remove front timing chain case, timing chain
related parts, and rear timing chain case in this order, and install in reverse order of removal. Refer to 

EM-

60, "TIMING CHAIN"

 .

●

Refer to 

EM-60, "TIMING CHAIN"

 for component parts location.

REMOVAL

1.

Remove engine cover. Refer to 

EM-18, "INTAKE MANIFOLD COLLECTOR"

 .

2.

Remove air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly. Refer to

EM-16, "AIR CLEANER AND AIR DUCT"

 .

3.

Remove undercover and splash guard (RH).

4.

Remove right side front road wheel and tire.

5.

Drain engine oil. Refer to 

LU-8, "Changing Engine Oil"

 .

CAUTION:

●

Perform this step when the engine is cold.

●

Do not spill engine oil on drive belts.

6.

Drain engine coolant from radiator. Refer to 

CO-9, "Changing Engine Coolant"

 .

CAUTION:

●

Perform this step when the engine is cold.

●

Do not spill engine coolant on drive belts.

7.

Remove intake manifold collectors (upper and lower). Refer to 

EM-18, "INTAKE MANIFOLD COLLEC-

TOR"

 .

8.

Remove drive belts. Refer to 

EM-13, "DRIVE BELTS"

 .

9.

Remove alternator. Refer to 

SC-17, "CHARGING SYSTEM"

 .

10. Remove power steering oil pump from bracket with piping connected, and temporarily secure it to aside.

Refer to 

PS-29, "POWER STEERING OIL PUMP"

 .

11. Remove power steering oil pump bracket. Refer to 

PS-29, "POWER STEERING OIL PUMP"

 .

12. Remove idler pulley and bracket. Refer to 

EM-60, "TIMING CHAIN"

 .

13. Separate engine harnesses removing their brackets from front timing chain case.

14. Remove rocker covers (right and left banks). Refer to 

EM-47, "ROCKER COVER"

 .

NOTE:
When only timing chain (primary) is removed, rocker cover does not need to be removed.

15. Obtain No. 1 cylinder at TDC of its compression stroke as follows:

NOTE:
When timing chain is not removed/installed, this step is not required.

a.

Rotate crankshaft pulley clockwise to align timing mark (grooved
line without color) with timing indicator.

SEM918G

FRONT TIMING CHAIN CASE

EM-51

C

D

E

F

G

H

I

J

K

L

M

A

EM

Revision: 2006 August

2006 Murano

b.

Make sure that intake and exhaust cam noses on No. 1 cylinder
(engine front side of right bank) are located as shown in the fig-
ure.

●

If not, turn crankshaft one revolution (360 degrees) and align
as shown in the figure.

NOTE:
When only timing chain (primary) is removed, rocker cover does
not need to be removed. To make sure that No. 1 cylinder is at
its compression TDC, remove front timing chain case first. Then
check mating marks on camshaft sprockets. Refer to 

EM-68,

"INSTALLATION"

 .

16. Remove crankshaft pulley as follows:

a.

Fix crankshaft with the pulley holder (SST).

b.

Loosen crankshaft pulley bolt and locate bolt seating surface at
10 mm (0.39 in) from its original position.

CAUTION:

Do not remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.

c.

Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.

CAUTION:

Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.

17. Remove oil pan (lower). Refer to 

EM-29, "OIL PAN AND OIL STRAINER"

 .

18. Loosen two mounting bolts in front of oil pan (upper) in reverse

order as shown in the figure.

19. Install oil pan (lower) temporarily.

●

Applying liquid gasket is unnecessary.

20. Support the oil pan (lower) bottom with jack.

●

Perform following operations with engine front-side supported with jack.

CAUTION:

Put a piece of wood or something similar as the supporting surface, be careful not to damage oil
pan (lower).

21. Remove intake valve timing control covers.

SEM418G

PBIC2679E

SEM915E

PBIC1637E

EM-52

FRONT TIMING CHAIN CASE

Revision: 2006 August

2006 Murano

●

Loosen mounting bolts in reverse order as shown in the fig-
ure.

●

Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid
gasket for removal.

CAUTION:

Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.

22. Remove collared O-rings from front timing chain case oil holes

(left and right sides).

23. Remove engine mounting insulator (RH) and engine mounting bracket (RH). Refer to 

EM-108, "ENGINE

ASSEMBLY"

 .

24. Raise engine front-side with jack. (This secures workspace to remove front timing chain case.)

25. Remove front timing chain case as follows:

a.

Loosen mounting bolts in reverse order as shown in the figure.

b.

Insert a suitable tool into the notch at the top of front timing chain
case as shown (1).

c.

Pry off case by moving the tool as shown (2).

●

Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid
gasket for removal. 

CAUTION:

●

Do not use a screwdriver or something similar.

●

After removal, handle front timing chain case carefully so
it does not tilt, cant, or warp under a load.

26. Remove oil pan gasket (front). Refer to 

EM-29, "OIL PAN AND OIL STRAINER"

 .

PBIC0918E

PBIC2631E

SEM730G

SEM156F