Infiniti Q45. Manual — part 555
ROCKER COVER
EM-37
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ROCKER COVER
PFP:13264
Removal and Installation
NBS001OQ
REMOVAL
1.
Refer to the following for removal works related to left-bank.
a.
Remove engine cover (with power tool) and air cleaner cover. Refer to
EM-13, "Removal and Installation"
.
b.
Remove air duct (inlet), air duct and air cleaner case assembly. Refer to
c.
Remove bracket (installation parts for No.6 camshaft bracket). Refer to
.
d.
Move harness on upper rocker cover and its peripheral aside.
e.
Remove ignition coil. Refer to
EM-29, "Removal and Installation"
f.
Remove PCV valve hose from PCV valve.
2.
Refer to the following for removal works related to right-bank.
a.
Remove engine cover (with power tool) and battery cover. Refer to
EM-13, "Removal and Installation"
b.
Move harness on upper rocker cover and its peripheral aside.
c.
EM-29, "Removal and Installation"
d.
Remove PCV valve hose from PCV valve.
3.
Remove PCV valves and O-rings from rocker covers (right and left bank), if necessary.
4.
Remove oil filler cap and oil catcher from rocker cover (right bank), if necessary.
1.
Rocker cover (left bank)
2.
PCV valve
3.
O-ring
4.
Rocker cover gasket (left bank)
5.
Rocker cover (right bank)
6.
PCV valve
7.
O-ring
8.
Oil filler cap
9.
Oil catcher
10.
Rocker cover gasket (right bank)
PBIC2353E
EM-38
ROCKER COVER
5.
Loosen bolts in the reverse order shown in the figure (with
power tool).
CAUTION:
Do not hold oil filler neck (right bank) not to damage it.
6.
Remove rocker cover gaskets from rocker covers (right and left bank).
7.
Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1 and 6).
CAUTION:
Do not scratch or damage the mating surface when cleaning off oil liquid gasket.
INSTALLATION
1.
Apply liquid gasket to joint part of cylinder head and camshaft
bracket as follows:
NOTE:
Figure shows an example of left-bank side (zoomed in shows
No.1 camshaft bracket). Apply only to No.1 camshaft bracket for
right-bank side.
a.
Refer to figure “a” to apply liquid gasket to joint part of No.1 and
No.6 camshaft bracket and cylinder head.
b.
Refer to figure “b” to apply liquid gasket in 90 degrees to figure
“a”.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-45, "RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS"
2.
Install rocker cover.
●
Check if rocker cover gasket is not dropped from installation groove of rocker cover.
3.
Tighten bolts in two steps separately in numerical order as
shown in the figure.
CAUTION:
Do not hold oil filler neck (right bank) not to damage it.
4.
Install in the reverse order of removal.
PBIC0027E
PBIC2444E
1st step
: 2.0 N·m (0.2 kg-m, 18 in-lb)
2nd step
: 8.3 N·m (0.85 kg-m, 73 in-lb)
PBIC0027E
TIMING CHAIN
EM-39
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TIMING CHAIN
PFP:13028
Removal and Installation
NBS001OR
PBIC4128E
EM-40
TIMING CHAIN
REMOVAL
1.
Remove engine assembly from vehicle. Refer to
EM-79, "Removal and Installation"
2.
Remove the following components and related parts:
●
Drive belt auto tensioner and idler pulley; Refer to
EM-15, "Drive Belt Auto Tensioner and Idler Pulley"
.
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Thermostat housing and hoses; Refer to
CO-22, "Removal and Installation"
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Ignition coil; Refer to
EM-29, "Removal and Installation"
●
EM-37, "Removal and Installation"
3.
If necessary, remove intake valve timing control position sensor
(right and left bank) and camshaft position sensor (PHASE) from
intake valve timing control cover and front cover.
CAUTION:
●
Handle components and parts carefully to avoid dropping
and shocks.
●
Do not disassemble.
4.
If necessary, remove intake valve timing control solenoid valve
from intake valve timing control cover.
CAUTION:
●
Handle components and parts carefully to avoid dropping
and shocks.
●
Do not disassemble.
5.
Remove intake valve timing control cover as follows:
a.
Loosen and remove fixing bolts in reverse order of that shown in
figure.
b.
Use the seal cutter [SST: KV10111100 (J-37228)] or the equiva-
lent to cut liquid gasket for removal.
CAUTION:
●
Be careful not to damage mating surfaces.
●
Pull out cover keeping levelness without an angle, as
inner part of cover is engaged with the center of camshaft
sprocket (INT).
1.
Camshaft sprocket (EXH)
2.
Camshaft sprocket (INT)
3.
Camshaft sprocket (INT)
4.
Camshaft sprocket (EXH)
5.
Front cover
6.
Intake valve timing control solenoid
valve (right bank)
7.
O-ring
8.
Seal ring
9.
Intake valve timing control position
sensor (right bank)
10. O-ring
11.
Intake valve timing control cover
(right bank)
12.
Intake valve timing control position
sensor (left bank)
13. O-ring
14.
Intake valve timing control cover (left
bank)
15. Seal ring
16.
Intake valve timing control solenoid
valve (left bank)
17. O-ring
18. Oil level gauge
19. Oil level gauge guide
20. O-ring
21. Crankshaft pulley bolt
22. Crankshaft pulley
23. Front oil seal
24. Chain tensioner cover
25. Camshaft position sensor (PHASE)
26. O-ring
27. Oil pump drive spacer
28. Oil pump assembly
29. Crankshaft sprocket
30. O-ring
31. O-ring
32.
Chain tension guide
(right bank)
33.
Chain slack guide
(right bank)
34. Timing chain (right bank)
35. Timing chain (left bank)
36. Chain tensioner (left bank)
37. Chain tensioner (right bank)
38.
Chain slack guide
(left bank)
39.
Chain tension guide
(left bank)
40. O-ring
PBIC0050E
PBIC0051E
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