Infiniti FX35 / FX45. Manual - part 640

 

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Infiniti FX35 / FX45. Manual - part 640

 

 

TIMING CHAIN

EM-77

< SERVICE INFORMATION >

[VQ35DE]

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

camshaft sprocket is aligned with the pink link on timing chain,
while the mating mark (notched) on crankshaft sprocket is
aligned with the orange one 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).

8.

Install internal chain guide, slack guide and timing chain ten-
sioner (primary).

CAUTION:

PBIC3494E

PBIC2109E

EM-78

< SERVICE INFORMATION >

[VQ35DE]

TIMING CHAIN

Do not overtighten slack guide mounting bolts. It is normal
for a gap to exist under the bolt seats when mounting bolts
are tightened to the specification.

9.

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

a.

Pull plunger stopper tab up (or turn lever downward) so as to
remove plunger stopper tab from the rachet of plunger.
NOTE:
Plunger stopper tab and lever 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 through hole of lever into ten-
sioner body hole.
• 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).
• 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 after installing, and then release plunger.

10. Make sure again that the mating marks on sprockets and timing chain have not slipped out of alignment.
11. Install new O-rings on rear timing chain case.

12. Install new front oil seal on front timing chain case.

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

PBIC2633E

PBIC3568E

PBIC3569E

PBIC2548E

TIMING CHAIN

EM-79

< SERVICE INFORMATION >

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• Install it so that each seal lip is oriented as shown in the figure. 

• 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.

13. Install water pump cover and chain tensioner cover to front timing chain case.

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

(commercial service tool) to front timing chain case as shown
in the figure.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-44, "Recommended Chemical Product and Sealant"

.

14. Install front timing chain case as follows:

SEM715A

PBIC0790E

SEM744GA

EM-80

< SERVICE INFORMATION >

[VQ35DE]

TIMING CHAIN

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-44, "Recommended Chemical Product and Sealant"

.

b.

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

c.

Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.
• There are two types of mounting bolts. Refer to the following

for locating bolts.

d.

After all bolts are tightened, retighten them to the specified
torque in numerical order 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.

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

a.

Install new seal rings in shaft grooves.

PBIC2658E

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)

KBIA1303E

SEM943G

 

 

 

 

 

 

 

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