Nissan Frontier D40. Manual - part 609

EM-168

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FRONT TIMING CHAIN CASE

• Remove old liquid gasket from bolt hole and thread.

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

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

INSTALLATION

1.

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

2.

Install new front oil seal on the 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. 

PBIC2084E

SEM926E

PBIC2615E

SEM715A

FRONT TIMING CHAIN CASE

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• Press-fit oil seal until it becomes flush with front timing chain

case end face using suitable drift [outer diameter: 60 mm (2.36
in)].

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

inverted.

CAUTION:

• Be careful not to damage front timing chain case and

crankshaft.

• Press-fit straight and avoid causing burrs or tilting oil

seal.

3.

Install water pump cover and chain tensioner cover to front timing chain case, if removed.
• Apply a continuous bead of liquid gasket using Tool to front

timing chain case as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

4.

Install idler pulley, if removed.

5.

Install front timing chain case as follows:

a.

Apply a continuous bead of liquid gasket using Tool to front tim-
ing chain case back side as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

PBIC2911E

Tool number

: WS39930000 (

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)

PBIC2912E

Tool number

: WS39930000 (   —   )

PBIC2913E

EM-170

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[VQ40DE]

FRONT TIMING CHAIN CASE

b.

Install new O-rings on rear timing chain case.

c.

Assemble front timing chain case as follows:

i.

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.

ii.

Since front timing chain case is offset for difference of bolt holes,
tighten bolts temporarily while holding front timing chain case
from front and top as shown.

iii.

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

d.

Tighten bolts to the specified torque in numerical order as
shown.

e.

After all bolts are tightened, retighten them to the specified
torque in numerical order as shown.
• There are four type of bolts. 

PBIC2548E

PBIC1100E

PBIC2915E

Bolt position

Bolt diameter

1 - 5

: 10 mm (0.39 in)

6 – 25

: 6 mm (0.24 in)

Bolt position

Tightening specification

1 - 5

: 55.0 N·m (5.6 kg-m, 41 ft-lb)

6 – 25

: 12.7 N·m (1.3 kg-m, 9 ft-lb)

PBIC2908E

FRONT TIMING CHAIN CASE

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6.

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

7.

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

a.

Install new seal rings in shaft grooves.

b.

Apply a continuous bead of liquid gasket using Tool to intake
valve timing control covers as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-22, "Recommended Chemical Products and Sealants"

.

c.

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

d.

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

e.

Tighten bolts in numerical order as shown.

8.

Install crankshaft pulley as follows:

a.

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).

b.

Tighten crankshaft pulley bolt in two steps.

Front oil pan bolt torque

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

PBIC2907E

Tool number

: WS39930000 (

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)

SBIA0492E

PBIC2631E

PBIC0918E