Content .. 113 114 115 116 ..

Nissan Murano Z50 (2004 year). Manual - part 115

FUEL INJECTOR AND FUEL TUBE

EM-43

Revision: 2004 November

2004 Murano

INSTALLATION

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.

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.

Install fuel injector to fuel tube as follows:

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.

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.

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.

Fuel tube side

: Blue

Nozzle side

: Brown

PBIC2545E

EM-44

FUEL INJECTOR AND FUEL TUBE

Revision: 2004 November

2004 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-16, "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

: 9.3 - 10.8 N·m (0.95 - 1.1 kg-m, 6.9 - 7.9 ft-lb)

2nd step

: 20.6 - 26.5 N·m (2.1 - 2.7 kg-m, 16 - 19 ft-lb)

SEC999C

PBIC2471E

PBIC1181E

FUEL INJECTOR AND FUEL TUBE

EM-45

Revision: 2004 November

2004 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, check for fuel
leakage at connection points.

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

Start engine. With engine speed increased, check again for fuel leakage at connection points.

CAUTION:

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

EM-46

ROCKER COVER

Revision: 2004 November

2004 Murano

ROCKER COVER

PFP:13264

Removal and Installation

ABS0034R

REMOVAL

Remove engine cover. Refer to

EM-16, "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-16, "INTAKE MANIFOLD COLLECTOR"

CAUTION:

Perform this step when engine is cold.

Remove front wiper arm (RH) and cowl top cover (right). 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-16,

"INTAKE MANIFOLD COLLECTOR"

Remove ignition coil. Refer to

EM-37, "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

ROCKER COVER

EM-47

Revision: 2004 November

2004 Murano

Loosen mounting bolts in reverse order shown in the figure.

10. Remove rocker cover gaskets from rocker covers.

11. Use 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 tube presser [SST: WS39930000 (

—

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

shaft 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

EM-48

ROCKER COVER

Revision: 2004 November

2004 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

: 0.96 - 2.96 N·m (0.10 - 0.30 kg-m, 9 - 26 in-lb)

2nd step

: 7.33 - 9.33 N·m (0.75 - 0.95 kg-m, 65 - 82 in-lb)

PBIC1184E

FRONT TIMING CHAIN CASE

EM-49

Revision: 2004 November

2004 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 upper oil pan 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-

58, "TIMING CHAIN"

●

Refer to

EM-58, "TIMING CHAIN"

for component parts location.

REMOVAL

Remove engine cover. Refer to

EM-16, "INTAKE MANIFOLD COLLECTOR"

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

EM-14, "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 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 engine is cold.

●

Do not spill engine coolant on drive belts.

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

EM-16, "INTAKE MANIFOLD COLLEC-

TOR"

Remove drive belts. Refer to

EM-11, "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-28, "POWER STEERING OIL PUMP"

11. Remove power steering oil pump bracket. Refer to

PS-28, "POWER STEERING OIL PUMP"

12. Remove idler pulley and bracket. Refer to

EM-58, "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-46, "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

EM-50

FRONT TIMING CHAIN CASE

Revision: 2004 November

2004 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-66,

"INSTALLATION"

16. Remove crankshaft pulley as follows:

Fix crankshaft with 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-28, "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 right and left intake valve timing control covers.

SEM418G

PBIC2679E

SEM915E

PBIC1637E

FRONT TIMING CHAIN CASE

EM-51

Revision: 2004 November

2004 Murano

●

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

●

Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gas-
ket 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-105, "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 suitable tool into the notch at the top of front timing chain
case as shown (1).

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

●

Use seal cutter [SST: KV10111100 (J37228)] to cut liquid gas-
ket for removal.

CAUTION:

●

Do not use 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. Refer to

EM-28, "OIL PAN AND OIL STRAINER"

PBIC0918E

PBIC2631E

SEM730G

SEM156F

EM-52

FRONT TIMING CHAIN CASE

Revision: 2004 November

2004 Murano

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

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

●

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

29. Remove front oil seal from front timing chain case using suitable

tool.

●

Use screwdriver for removal.

CAUTION:

Be careful not to damage front timing chain case.

30. Remove timing chain and related parts. Refer to

EM-58, "TIMING CHAIN"

31. Use 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.

INSTALLATION

Install timing chain and related parts. Refer to

EM-58, "TIMING CHAIN"

PBIC2548E

EMQ0032D

SEM737G

PBIC2084E

FRONT TIMING CHAIN CASE

EM-53

Revision: 2004 November

2004 Murano

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 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.

●

Apply a continuous bead of liquid gasket with 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:

PBIC2615E

SEM715A

PBIC0790E

SEM744GA

EM-54

FRONT TIMING CHAIN CASE

Revision: 2004 November

2004 Murano

Apply a continuous bead of liquid gasket with 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.

●

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

●

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

PBIC2658E

PBIC2630E

PBIC1114E

FRONT TIMING CHAIN CASE

EM-55

Revision: 2004 November

2004 Murano

●

Apply liquid gasket with 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.

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.

iii.

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

PBIC1099E

PBIC2548E

PBIC1100E

PBIC1115E

EM-56

FRONT TIMING CHAIN CASE

Revision: 2004 November

2004 Murano

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-105, "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-28, "OIL PAN AND OIL STRAINER"

11. Install right and left intake valve timing control covers as follows:

Install new seal rings in shaft grooves.

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

—

)] to intake valve timing control covers as

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

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.

M8 bolts

: 1, 2

: 25.5 - 31.3 N·m (2.6 - 3.2 kg-m, 19 - 23 ft-lb)

M6 bolts

: Except the above

: 11.7 - 13.7 N·m (1.2 - 1.4 kg-m, 9 - 10 ft-lb)

: 17.2 N·m (1.8 kg-m, 13 ft-lb)

SEM730G

PBIC1637E

SBIA0492E

PBIC2631E

FRONT TIMING CHAIN CASE

EM-57

Revision: 2004 November

2004 Murano

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 pulley holder [SST: KV10109300 (

—

)].

Tighten crankshaft pulley bolt.

Put a paint mark on crankshaft pulley aligning with angle mark
on crankshaft pulley bolt. Then, further retighten bolt by 60
degrees. (Angle tightening)

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.

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.

INSPECTION AFTER INSTALLATION

●

Before starting engine, check the levels of engine coolant, lubrications and working fluid. If less than
required quantity, fill to the specified level.

●

Run engine to check for unusual noise and vibration.

●

Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil and working
fluid.

●

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

●

After cooling down engine, again check levels of engine coolant, engine oil and working fluid. Refill to the
specified level, if necessary.

Summary of the inspection items:

PBIC0918E

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

SEM751G

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Working fluid

Level

Leakage

Level

EM-58

TIMING CHAIN

Revision: 2004 November

2004 Murano

TIMING CHAIN

PFP:13028

Removal and Installation

ABS0033Q

PBIC1185E

Content .. 113 114 115 116 ..