Infiniti Q45 (FY33). Manual — part 416
SEM436F
21. Install chain tensioner.
I
Press chain tensioner in and insert 1 mm (0.04 in) diameter pin
in pin hole to secure tensioner and then install tensioner.
Reference: Reuse the accessory pin when replacing the chain
tensioner with a new part.
Tighten bolts to specified torque.
: 9.2 - 10.8 N
⋅
m (0.94 - 1.1 kg-m, 81.6 - 95.5 in-lb)
Remove pin after installation is completed.
I
Install chain tensioner guide in the direction shown in the
figure.
22. Lubricate timing chain and chain sliding parts with new engine
oil.
SEM437F
23. Install front cover upper.
I
Apply liquid gasket to front cover upper.
Refer to ”POSITION FOR APPLYING LIQUID GASKET” (EM-
14).
I
Install bolts in the numerical order shown in the figure.
: 6.3 - 8.3 N
⋅
m (0.64 - 0.85 kg-m, 55.6 - 73.8 in-lb)
Before installing cover, check that timing chain and sprocket
mating marks are aligned correctly.
I
Install chain guide bolt on front cover upper.
SEM438F
SEM682E
24. Install camshaft position sensor.
Note:
Notch on exhaust camshaft on left bank is off-centered so that
camshaft position sensor can be installed properly.
25. Install crankshaft pulley.
SEM257G
26. Set No. 1 piston at TDC on its compression stroke.
Align the timing mark on crankshaft pulley with timing indica-
tor on front cover.
GI
MA
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
TIMING CHAIN
Installation (Cont’d)
EM-25
SEM415F
27. Install oil pan. Refer to “Installation” in “OIL PAN” (EM-12).
28. Install rocker cover. Refer to “CYLINDER HEAD” (EM-40).
SEM439F
29. Install intake manifold.
I
Tighten bolts in numerical order as shown in the figure.
SEM440F
30. Install fuel tube assembly.
I
Tighten in numerical order as shown in the figure.
a.
Tighten all bolts to 9.3 to 10.8 N
⋅
m (0.95 to 1.1 kg-m, 6.9 to 8.0
ft-lb).
b.
Tighten all bolts to 21 to 26 N
⋅
m (2.1 to 2.7 kg-m, 15 to 20 ft-
lb).
SEM441F
31. Install intake manifold collector.
I
Tighten in numerical order as shown in the figure.
SEM442F
32. Install exhaust manifolds.
TIMING CHAIN
Installation (Cont’d)
EM-26
VALVE OIL SEAL
1.
Remove rocker cover. Refer to “Removal” in “CYLINDER
HEAD” (EM-30).
2.
Remove camshaft.
3.
Remove rocker arm.
4.
Remove valve spring and valve oil seal with suitable tool.
Piston concerned should be set at TDC to prevent valves from
falling.
SEM917C
5.
Apply engine oil to new valve oil seal and install it with Tool.
SEM690E
SEM715A
OIL SEAL INSTALLING DIRECTION
I
Install new oil seal in the direction shown in the figure.
SEM919C
FRONT OIL SEAL
1.
Remove the following parts.
I
Engine under cover
I
Cooling fan
I
Drive belts
I
Crankshaft pulley
2.
Remove front oil seal.
Be careful not to scratch front cover.
GI
MA
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
OIL SEAL REPLACEMENT
EM-27
SEM920C
3.
Apply engine oil to new oil seal and install it using suitable tool.
REAR OIL SEAL
1.
Remove transmission.
Refer to AT section.
2.
Remove drive plate.
3.
Remove rear oil seal retainer.
4.
Remove traces of liquid gasket using scraper.
SEM921C
5.
Remove rear oil seal from rear oil seal retainer.
SEM922C
6.
Apply engine oil to new oil seal and install it using suitable tool.
SEM923C
7.
Apply a continuous bead of liquid gasket to rear oil seal
retainer.
OIL SEAL REPLACEMENT
EM-28
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