Content .. 122 123 124 125 ..

Nissan Murano Z50 (2006 year). Manual - part 124

FRONT TIMING CHAIN CASE

EM-53

Revision: 2006 August

2006 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: 2006 August

2006 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: 2006 August

2006 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: 2006 August

2006 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: 2006 August

2006 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-108, "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: 2006 August

2006 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.

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).

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)

PBIC4627J

FRONT TIMING CHAIN CASE

EM-59

Revision: 2006 August

2006 Murano

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack guide may gener-
ate 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.

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

EM-60

TIMING CHAIN

Revision: 2006 August

2006 Murano

TIMING CHAIN

PFP:13028

Removal and Installation

NBS0029M

PBIC4186E

TIMING CHAIN

EM-61

Revision: 2006 August

2006 Murano

●

Refer to

GI-10, "Components"

for symbol marks in the figure.

NOTE:

●

This section describes procedures for removal/installation front timing chain case and timing chain related
parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

●

To removal/installation front timing chain case, timing chain, and its related parts without removing oil pan
(upper), refer to

EM-50, "FRONT TIMING CHAIN CASE"

REMOVAL

Remove engine assembly from the vehicle, and separate front suspension member and transaxle from
engine. Refer to

EM-108, "ENGINE ASSEMBLY"

Install engine sub-attachment with engine stand shaft [SST: KV10117001 (

—

) and KV10106500 (

—

)] to right side of cylinder block, then lift engine, and mount it onto engine stand [SST: ST0501S000

(

—

)]. Refer to

EM-114, "CYLINDER BLOCK"

Drain engine oil. Refer to

LU-8, "Changing Engine Oil"

Drain engine coolant from inside engine. Refer to

EM-115, "DISASSEMBLY"

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

EM-18, "INTAKE MANIFOLD COLLEC-

TOR"

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

EM-47, "ROCKER COVER"

Remove oil pans (lower and upper) and oil strainer. Refer to

EM-29, "OIL PAN AND OIL STRAINER"

Remove idler pulley and bracket.

Separate engine harness removing their brackets from front timing chain case.

10. Remove intake valve timing control covers.

●

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.

O-ring

Timing chain tensioner (secondary) (left
bank)

Internal chain guide

Timing chain tensioner (secondary)
(right bank)

Camshaft sprocket (EXH)

Timing chain (secondary)

Timing chain (primary)

Camshaft sprocket (INT)

Slack guide

10. Timing chain tensioner (primary)

11. Camshaft sprocket (EXH)

12.

Timing chain (secondary)

13. Camshaft sprocket (INT)

14. Crankshaft sprocket

15.

Collared O-ring

16. Seal ring

17. Intake valve timing control cover

18.

Chain tensioner cover

19. Intake valve timing control cover

20. Water pump cover

21.

Front oil seal

22. Crankshaft pulley

23. Idler pulley

24.

Idler pulley bracket

25. Center shaft

26. Washer

27.

Front timing chain case

28. Rear timing chain case

29. Water drain plug (front)

30.

Tension guide

Refer to

EM-68

Tighten after adjusting the belt tension.

To A/C compressor

PBIC0918E

EM-62

TIMING CHAIN

Revision: 2006 August

2006 Murano

11. Remove collared O-ring from front timing chain case oil hole (left

and right sides).

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

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

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.

13. 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.

PBIC2631E

SEM918G

SEM418G

PBIC2679E

TIMING CHAIN

EM-63

Revision: 2006 August

2006 Murano

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.

14. 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 screwdrivers or something similar.

●

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

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

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

●

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

SEM915E

SEM730G

SEM156F

PBIC2548E

EM-64

TIMING CHAIN

Revision: 2006 August

2006 Murano

17. 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.

18. Remove timing chain tensioner (primary) as follows:

Remove lower mounting bolt.

Loosen upper mounting bolt slowly, and then turn timing chain
tensioner (primary) on the mounting bolt so that plunger is fully
expanded.

NOTE:
Even if plunger is fully expanded, it is not dropped from the body
of timing chain tensioner (primary).

Remove upper mounting bolt, and then remove timing chain ten-
sioner (primary).

19. Remove internal chain guide, tension guide and slack guide.

NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).

20. Remove timing chain (primary) and crankshaft sprocket.

CAUTION:

After removing timing chain (primary), do not turn crankshaft and camshaft separately, or valves
will strike the piston heads.

21. Remove timing chain (secondary) and camshaft sprockets as follows:

EMQ0032D

PBIC3562E

PBIC2266E

TIMING CHAIN

EM-65

Revision: 2006 August

2006 Murano

Attach a suitable stopper pin to the right and left timing chain
tensioners (secondary).

NOTE:

●

Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a
stopper pin.

●

For removal of timing chain tensioner (secondary), refer to

EM-79, "CAMSHAFT"

. [Removing camshaft bracket (No. 1)

is required.]

Remove camshaft sprockets (INT and EXH) mounting bolts.

●

Secure the hexagonal portion of camshaft using a wrench to
loosen mounting bolts.

CAUTION:

Do not loosen mounting bolts with securing anything
other than the camshaft hexagonal portion or with ten-
sioning the timing chain.

Remove timing chain (secondary) together with camshaft sprockets.

●

Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.

●

Insert 0.5 mm (0.020 in)-thick metal or resin plate between
timing chain and timing chain tensioner plunger (guide).
Remove timing chain (secondary) together with camshaft
sprockets with timing chain loose from guide groove.

CAUTION:

Be careful of plunger coming-off when removing timing
chain (secondary). This is because plunger of timing
chain tensioner (secondary) moves during operation,
leading to coming-off of fixed stopper pin.

NOTE:
Camshaft sprocket (INT) is two-for-one structure of sprockets
for timing chain (primary) and for timing chain (secondary).

●

When handling camshaft sprocket (INT), be careful of the fol-
lowing caution:

CAUTION:

●

Handle carefully to avoid any shock to camshaft
sprocket.

●

Do not disassemble. (Do not loosen bolts “A” as
shown in the figure.)

22. Remove water pump. Refer to

CO-22, "WATER PUMP"

23. Remove rear timing chain case as follows:

PBIC2047E

KBIA1698J

PBIC1978E

PBIC2980E

EM-66

TIMING CHAIN

Revision: 2006 August

2006 Murano

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

Cut liquid gasket using the seal cutter [SST: KV10111100
(J37228)] and remove rear timing chain case.

CAUTION:

●

Do not remove plate metal cover of oil passage.

●

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

24. Remove O-rings from cylinder head.

25. Remove O-rings from cylinder block.

26. Remove timing chain tensioners (secondary) from cylinder head as follows, if necessary.

Remove camshaft brackets (No. 1). Refer to

EM-79, "REMOVAL"

Remove timing chain tensioners (secondary) with a stopper pin attached.

SEM735G

KBIA1307E

SBIA0496E

PBIC0788E

TIMING CHAIN

EM-67

Revision: 2006 August

2006 Murano

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

and rear timing chain cases, and opposite mating surfaces.

●

Remove old liquid gasket from bolt hole and thread.

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

water pump cover, chain tensioner cover and intake valve timing
control covers.

INSPECTION AFTER REMOVAL
Timing Chain

Check for cracks and any excessive wear at link plates and roller
links of timing chain. Replace timing chain as necessary.

SEM737G

PBIC2084E

SEM926E

PBIC0282E

EM-68

TIMING CHAIN

Revision: 2006 August

2006 Murano

INSTALLATION

NOTE:
The below figure shows the relationship between the mating mark on each timing chain and that on the corre-
sponding sprocket, with the components installed.

Install timing chain tensioners (secondary) to cylinder head as follows if removed. Refer to

EM-84,

"INSTALLATION"

Install timing chain tensioners (secondary) with a stopper pin attached and new O-ring.

Install camshaft brackets (No. 1). Refer to

EM-84, "INSTALLATION"

Install rear timing chain case as follows:

Install new O-rings onto cylinder block.

PBIC3493E

PBIC0788E

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