Content .. 125 126 127 128 ..

Nissan Murano Z50 (2005 year). Manual - part 127

FUEL INJECTOR AND FUEL TUBE

EM-45

Revision: 2005 August

2005 Murano

Install spacers on intake manifold.

Install fuel tube and fuel injector assembly to intake manifold.

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.

Connect fuel injector harness.

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

EM-18, "INTAKE MANIFOLD COLLECTOR"

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.

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

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

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

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.

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.

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.

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

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: 2005 August

2005 Murano

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

INSPECTION AFTER INSTALLATION
Check on Fuel Leakage

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.

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

EM-47

Revision: 2005 August

2005 Murano

ROCKER COVER

PFP:13264

Removal and Installation

ABS0034R

REMOVAL

Remove engine cover. Refer to

EM-18, "INTAKE MANIFOLD COLLECTOR"

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.

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

WW-4, "FRONT

WIPER AND WASHER SYSTEM"

and

EI-21, "COWL TOP"

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

EM-18,

"INTAKE MANIFOLD COLLECTOR"

Remove ignition coil. Refer to

EM-38, "IGNITION COIL"

Remove PCV hoses from rocker covers.

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

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

PCV hose

Oil filler cap

Rocker cover (right bank)

PCV hose

PCV valve

O-ring

Rocker cover gasket (right bank)

PCV hose

Rocker cover gasket (left bank)

10. Rocker cover (left bank)

PBIC2678E

EM-48

ROCKER COVER

Revision: 2005 August

2005 Murano

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

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

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

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

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

Install new rocker cover gasket to rocker cover.

Install rocker cover.

●

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

PBIC1184E

PBIC2474E

ROCKER COVER

EM-49

Revision: 2005 August

2005 Murano

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

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

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

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.

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: 2005 August

2005 Murano

FRONT TIMING CHAIN CASE

PFP:13599

Removal and Installation

ABS0032M

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 upper oil pan 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

Remove engine cover. Refer to

EM-18, "INTAKE MANIFOLD COLLECTOR"

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"

Remove undercover and splash guard (RH).

Remove right side front road wheel and tire.

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.

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.

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

EM-18, "INTAKE MANIFOLD COLLEC-

TOR"

Remove drive belts. Refer to

EM-13, "DRIVE BELTS"

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-27, "POWER STEERING OIL PUMP"

11. Remove power steering oil pump bracket. Refer to

PS-27, "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.

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

SEM918G

FRONT TIMING CHAIN CASE

EM-51

Revision: 2005 August

2005 Murano

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:

Fix crankshaft with the pulley holder [SST].

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.

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: 2005 August

2005 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-107, "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:

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

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

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

FRONT TIMING CHAIN CASE

EM-53

Revision: 2005 August

2005 Murano

27. Remove O-rings from rear timing chain case.

28. Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.

●

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

29. Remove front oil seal from front timing chain case using a suit-

able tool.

●

Use a screwdriver for removal.

CAUTION:

Be careful not to damage front timing chain case.

30. Remove timing chain and related parts. Refer to

EM-60, "TIMING CHAIN"

31. Use a scraper to remove all traces of old liquid gasket from front

and rear timing chain cases and oil pan (upper), and liquid gas-
ket mating surfaces.

CAUTION:

Be careful not to allow gasket fragments to enter oil pan.

●

Remove old liquid gasket from bolt hole and thread.

PBIC2548E

EMQ0032D

SEM737G

PBIC2084E

EM-54

FRONT TIMING CHAIN CASE

Revision: 2005 August

2005 Murano

32. Use a scraper to remove all traces of liquid gasket from water

pump cover, chain tensioner cover and intake valve timing con-
trol covers.

INSTALLATION

Install timing chain and related parts. Refer to

EM-60, "TIMING CHAIN"

Hammer dowel pins (right and left) into front timing chain case
up to a point close to taper in order to shorten protrusion length.

Install new front oil seal on front timing chain case.

●

Apply new engine oil to both oil seal lip and dust seal lip.

●

Install it so that each seal lip is oriented as shown in the fig-
ure.

●

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.

●

Make sure the garter spring is in position and seal lip is not
inverted.

Install water pump cover and chain tensioner cover to front timing chain case, if removed.

SEM926E

PBIC2615E

SEM715A

PBIC0790E

FRONT TIMING CHAIN CASE

EM-55

Revision: 2005 August

2005 Murano

●

Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 (

—

)] to front timing chain case as

shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

Install front timing chain case as follows:

Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 (

—

)] to front timing chain case back

side as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

Install new oil pan gasket (front).

●

Apply liquid gasket to oil pan gasket as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

SEM744GA

PBIC2658E

PBIC2630E

EM-56

FRONT TIMING CHAIN CASE

Revision: 2005 August

2005 Murano

●

Align notch of front timing chain case with protrusion of oil pan
gasket.

●

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

—

)] to top surface of oil pan (upper) as shown in the fig-

ure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

Install new O-rings on rear timing chain case.

Assemble front timing chain case as follows:

Fit lower end of front timing chain case tightly onto top face of oil
pan (upper). From the fitting point, make entire front timing chain
case contact rear timing chain case completely.

CAUTION:

Be careful that oil pan gasket is in place.

PBIC1114E

PBIC1099E

PBIC2548E

PBIC1100E

FRONT TIMING CHAIN CASE

EM-57

Revision: 2005 August

2005 Murano

ii.

Since front timing chain case is offset for difference of bolt holes,
tighten bolts temporarily with holding front timing chain case
from front and top as shown in the figure.
For bolt length and positions, refer to step e.

iii.

Same as the step ii, insert dowel pin with holding front timing
chain case from front and top completely.

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.

After all bolts tightening, retighten them to the specified torque in
numerical order as shown in the figure.

Install engine mounting bracket (RH) and engine mounting insulator (RH). Refer to

EM-107, "ENGINE

ASSEMBLY"

Remove jack which supports the oil pan (lower) bottom.

Remove oil pan (lower).

Install two mounting bolts in front of oil pan (upper) in numerical
order as shown in the figure.

10. Install oil pan (lower). Refer to

EM-29, "OIL PAN AND OIL STRAINER"

11. Install intake valve timing control covers as follows:

Install new seal rings in shaft grooves.

Apply a continuous bead of liquid gasket with the tube presser
[SST: WS39930000 (

—

)] to intake valve timing control cov-

ers as shown in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

PBIC1115E

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)

: 17.2 N·m (1.8 kg-m, 13 ft-lb)

SEM730G

PBIC1637E

SBIA0492E

EM-58

FRONT TIMING CHAIN CASE

Revision: 2005 August

2005 Murano

Install new collared O-rings in front timing chain case oil holes
(left and right sides).

Being careful not to move seal rings from the installation grooves, align dowel pins on front timing chain
case with the holes to install intake valve timing control covers.

Tighten mounting bolts in numerical order as shown in the fig-
ure.

12. Install crankshaft pulley as follows:

Install crankshaft pulley, taking care not to damage front oil seal.

●

When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).

Fix crankshaft with the pulley holder [SST: KV10109300 (

—

)].

Tighten crankshaft pulley bolt.

Turn crankshaft pulley bolt 90 degress clockwise (angle tighten-
ing).

CAUTION:

Check the tightening angle by using the angle wrench
[SST]. Avoid judgement by visual inspection without SST.

●

Check tightening angle indicated on the angle wrench indica-
tor plate.

13. Rotate crankshaft pulley in normal direction (clockwise when viewed from engine front) to confirm it turns

smoothly.

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

INSPECTION AFTER INSTALLATION
Inspection for Leaks

The following are procedures for checking fluid 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

●

Run engine to check for unusual noise and vibration.

PBIC2631E

PBIC0918E

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

PBIC4224E

FRONT TIMING CHAIN CASE

EM-59

Revision: 2005 August

2005 Murano

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.

●

Warm up engine thoroughly to make sure there is no leakage of 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.

Item

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

EM-60

TIMING CHAIN

Revision: 2005 August

2005 Murano

TIMING CHAIN

PFP:13028

Removal and Installation

ABS0033Q

PBIC1185E

Content .. 125 126 127 128 ..