Infiniti G35 (V35) Sedan. Manual — part 615
TIMING CHAIN
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Do not overtighten slack guide mounting bolts (2). It is nor-
mal for a gap (A) to exist under the bolt seats when mount-
ing bolts are tightened to the specification.
6.
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 plunger stopper 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.
7.
Make sure again that the mating marks on sprockets and timing chain have not slipped out of alignment.
8.
Install new o-rings (1) on rear timing chain case.
1
: Slack guide
3
: Cylinder block
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: Right bank
B
: Left bank
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TIMING CHAIN
9.
Install new front oil seal on front timing chain case.
• Apply new engine oil to both oil seal lip (A) and dust seal lip
(B).
• 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)] (A),
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.
10. Install front timing chain case as follows:
• Make sure O-rings stay in place during installation to rear timing chain case.
a.
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
GI-15, "Recommended Chemical Products and Sealants"
.
: Engine inside
: Engine outside
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: Bolt hole
D
: Protrusion
e
: 2.6 - 3.6 mm (0.102 - 0.142 in) dia.
f
: 3.4 - 4.4 mm (0.134 - 0.173 in) dia.
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TIMING CHAIN
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b.
Apply liquid gasket to top surface of oil pan (upper) as shown in
the figure.
Use Genuine RTV silicone Sealant or equivalent. Refer to
15, "Recommended Chemical Products and Sealants"
.
c.
Assemble front timing chain case.
CAUTION:
• Be careful not to damage front oil seal by interference
with front end of crankshaft.
• Attaching should be done within 5 minutes after liquid
gasket application.
d.
Install front timing chain case as to fit its dowel pin hole together dowel pin on rear timing chain case.
e.
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.
f.
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).
g.
Install two mounting bolts in front of oil pan (upper) in numerical
order shown in the figure.
11. Install right and left valve timing control covers as follows:
A
: 4.0 - 5.0 mm (0.157 - 0.197 in) dia.
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: Front timing chain case
2
: Oil pan (upper)
3
: Cylinder block
: Engine front
M10 bolts
: 1, 2, 3, 4, 5, 6, 7
: 55.0 N·m (5.6 kg-m, 41 ft-lb)
M6 bolts
: Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
Tightening torque
: Refer to
: Engine front
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TIMING CHAIN
a.
Install new seal rings (1) in shaft grooves.
CAUTION:
When replacing seal ring, replace all rings with new one.
b.
To check the joint between dowel pins and dowel pin holes,
check the looseness in the axle direction by pushing the circum-
ferential looseness (between dowel pins and dowel pin holes) by
twisting in the circumferential direction.
CAUTION:
Always perform this procedure when removing because the
gap between dowel pins and dowel pin holes may not be
caused on purpose.
c.
Install valve timing control cover with new gasket to front timing
chain case.
CAUTION:
• Do not face the magnet retarder side down to prevent
magnet retarder from dropping.
• Check the mating surface of magnet retarder and the
drum of exhaust side camshaft sprocket for foreign mate-
rials.
• Align the center of both shaft holes of the shaft and the
intake side camshaft sprocket, and then insert them.
• Be careful not to drop the seal ring from the shaft groove.
• When setting the valve timing control cover in position by hand, if valve timing control cover is
not contacting with the front timing chain case, the dowel pin of magnet retarder may not be
aligned with the dowel pin holes of cover. In this case, return to step “b”.
d.
Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain
case with holes to install valve timing control covers.
e.
Tighten mounting bolts in numerical order as shown in the fig-
ure.
• After all bolts are tightened, tighten No.1 bolt to the specified
torque again.
12. Install oil pan (lower). Refer to
.
13. Install rocker covers (right and left banks). Refer to
.
A
: Left bank
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: Mating surface of magnet retarder
B
: Moves slightly
C
: Not shaken
1
: Valve timing control cover
2
: Magnet retarder
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Tightening torque
: Refer to
A
: Right bank
B
: Left bank
C
: Dowel pin hole
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