Nissan Murano. Manual - part 623

 

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Nissan Murano. Manual - part 623

 

 

EM-66

< REMOVAL AND INSTALLATION >

TIMING CHAIN

• Install timing chain (primary) so the mating mark (punched) (B)

on camshaft sprocket (INT) (1) is aligned with the pink link (A)
on timing chain, while the mating mark (notched) (C) on crank-
shaft sprocket (2) is aligned with the orange link (D) on timing
chain, as shown in the figure.

• When it is difficult to align mating marks of timing chain (pri-

mary) with each sprocket, gradually turn camshaft using
wrench on the hexagonal portion to align it with the mating
marks.

• During alignment, be careful to prevent dislocation of mating

mark alignments of timing chains (secondary).

6.

Install internal chain guide (1) and slack guide (2).

CAUTION:

Never over tighten slack guide mounting bolt (2). It is nor-
mal for a gap (A) to exist under the bolt seat when mounting
bolt is tightened to specification.

3

:  Water  pump

JPBIA1601ZZ

3

: Tension guide

JPBIA1104ZZ

1

: Slack guide

3

: Cylinder block

JPBIA0117ZZ

TIMING CHAIN

EM-67

< REMOVAL AND INSTALLATION >

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7.

Install the timing chain tensioner (primary) with the following procedure:

a.

Pull plunger stopper tab (A) up (or turn lever downward) so as to
remove plunger stopper tab from the ratchet of plunger (D).
NOTE:
Plunger stopper tab and lever (C) are synchronized.

b.

Push plunger into the inside of tensioner body.

c.

Hold plunger in the fully compressed position by engaging
plunger stopper tab with the tip of ratchet.

d.

To secure lever, insert stopper pin (E) through hole of lever into
tensioner body hole (B).
• The lever parts and the tab are synchronized. Therefore, the

plunger will be secured under this condition.

NOTE:
Figure shows the example of 1.2 mm (0.047 in) diameter thin screwdriver being used as the stopper pin.

e.

Install timing chain tensioner (primary) (1).
• Remove any dirt and foreign materials completely from the

back and the mounting surfaces of timing chain tensioner (pri-
mary).

f.

Pull out stopper pin (A) after installing, and then release plunger.

8.

Check again that the mating marks on each sprocket and each timing chain have not slipped out of align-
ment.

9.

Install new O-rings (1) on rear timing chain case.

CAUTION:

Do not reuse O-rings.

10. 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 figure. 

JPBIA0118ZZ

JPBIA0119ZZ

A

:  Bank  1

B

:  Bank  2

JPBIA1111ZZ

A

:  Oil  seal  lip

B

: Dust seal lip

: Engine inside

: Engine outside

JPBIA0054ZZ

EM-68

< REMOVAL AND INSTALLATION >

TIMING CHAIN

• 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.

• Check the garter spring is in position and seal lip is not

inverted.

11. Install water pump cover to front timing chain case.

• Apply a continuous bead of liquid gasket with the tube presser

(commercial service tool) to water pump cover (1) as shown in
the figure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

12. Install front timing chain case as follows:

a.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case back side as
shown in the figure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

b.

Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.

PBIC0790E

a : 

φ

2.3 - 3.3 mm (0.091 - 0.130 in)

JPBIA1722ZZ

D

:  Bolt  hole

E

: Protrusion

f

φ

2.6 - 3.6 mm (0.102 - 0.142 in)

JPBIA2472ZZ

TIMING CHAIN

EM-69

< REMOVAL AND INSTALLATION >

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c.

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.

d.

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

CAUTION:

Be sure to wipe off any excessive liquid gasket leaking on surface mating with oil pan (upper).

e.

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.

13. Install intake valve timing control covers as follows:
a.

Install new seal rings in shaft grooves.

b.

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

c.

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

14. Install crankshaft pulley as follows:
a.

Install crankshaft pulley, taking care not to damage front oil seal.
• When press-fitting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).

b.

Fix crankshaft with the pulley holder (commercial service tool).

c.

Tighten crankshaft pulley bolt.

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)

Standard

Front timing chain case to rear timing chain case:

0.14 to 0.14 mm (

0.006 to 0.006 in)

JPBIA1640ZZ

SEM943G

A

:  Bank  1

B

:  Bank  2

C

: Dowel pin hole

JPBIA1639ZZ

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

 

 

 

 

 

 

 

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