Infiniti QX56 (Z62). Manual — part 655
EM-60
< REMOVAL AND INSTALLATION >
OIL PAN (UPPER)
3.
Install oil pan (lower). Refer to
EM-55, "Removal and Installation"
.
4.
Install in the reverse order of removal.
NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.
Inspection
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INSPECTION AFTER DISASSEMBLY
Clean oil strainer if any object is attached.
INSPECTION AFTER ASSEMBLY
1.
Check the engine oil level and adjust engine oil. Refer to
2.
Start engine, and check there is no leakage of engine oil.
3.
Stop engine and wait for 15 minutes.
4.
Check the engine oil level again. Refer to
.
TIMING CHAIN
EM-61
< REMOVAL AND INSTALLATION >
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TIMING CHAIN
Exploded View
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1.
O-ring
2.
O-ring
3.
O-ring
4.
Tension guide (bank 2)
5.
High pressure fuel pump camshaft
6.
Timing chain (bank 2)
7.
Lifter
8.
Intake camshaft sprocket (bank 2)
9.
Exhaust camshaft sprocket (bank 2)
JPBIA4597GB
EM-62
< REMOVAL AND INSTALLATION >
TIMING CHAIN
Removal and Installation
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REMOVAL
1.
Release fuel pressure. Refer to
2.
Drain engine coolant from radiator. Refer to
.
3.
Remove fan shroud (lower). Refer to
4.
.
5.
Remove drive belt auto-tensioner. Refer to
6.
Remove oil level gauge and oil level gauge guide. Refer to
7.
Move power steering oil pump to the position without the hindrance for work. Refer to
.
8.
Remove alternator, alternator bracket and alternator stay. Refer to
.
9.
Move power steering reservoir tank to the position without the hindrance for work, and then remove Res-
ervoir tank bracket. Refer to
.
10. Remove camshaft position sensors.
CAUTION:
• Handle carefully to avoid dropping and shocks.
• Never disassemble.
• Never allow metal powder to adhere to magnetic part at
sensor tip.
• Never place sensors in a location where they are exposed
to magnetism.
11. Remove high pressure fuel pump and lifter. Refer to
.
CAUTION:
After removing lifter, replace lifter with a new one.
12. Remove radiator hose (upper) and radiator hose (lower). Refer to
13. Remove water suction pipe. Refer to
14. Remove valve timing control cover as per the following:
a.
Disconnect valve timing control solenoid valve harness connector.
10.
Slack guide (bank 2)
11. Timing chain tensioner (bank 2)
12.
Exhaust camshaft sprocket (bank 1)
13.
Timing chain (bank 1)
14. Intake camshaft sprocket (bank 1)
15.
Timing chain tensioner (bank 1)
16.
Slack guide (bank 1)
17. Tension guide (bank 1)
18.
Oil pump
19.
Camshaft position sensor (bank 2)
20. O-ring
21.
Seal ring
22.
Valve timing control cover (bank 2)
23.
Intake valve timing control solenoid
valve (bank 2)
24.
Crankshaft pulley
25.
Front oil seal
26.
Intake valve timing control solenoid
valve (bank 1)
27.
Valve timing control cover (bank 1)
28.
Timing chain tensioner cover
29. Front cover
30.
O-ring
31.
Camshaft position sensor (bank 1)
32. Camshaft bracket
33.
Oil filter (for valve timing control so-
lenoid valve)
34.
Crankshaft sprocket
35. Oil pump drive spacer
A.
Comply with the installation proce-
dure when tightening. Refer to
62, "Removal and Installation"
.
Refer to
for symbol marks in the figure.
A
: Keep free from magnetic materials
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TIMING CHAIN
EM-63
< REMOVAL AND INSTALLATION >
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b.
Loosen mounting bolts in the reverse order as shown in the fig-
ure.
CAUTION:
• Exercise care not to damage mating surfaces.
• Shaft is internally jointed with camshaft sprocket center
hole. When removing, keep it horizontal until it is com-
pletely disconnected.
15. Remove intake valve timing control solenoid valve (bank 1 and bank 2), if necessary.
CAUTION:
Valve timing control solenoid valve is not reusable. Never remove it unless required.
16. Remove O-rings (1) from front cover.
17. Remove rocker cover. Refer to
18. Obtain No. 1 cylinder at TDC of its compression stroke. Refer to
19. Remove crankshaft pulley. Refer to
EM-96, "FRONT OIL SEAL : Removal and Installation"
.
20. Remove water pump pulley. Refer to
21. Remove oil pan (lower) and oil strainer. Refer to
.
22. Remove oil pan (upper). Refer to
.
23. Remove front cover as per the following:
a.
Loosen mounting bolts (A), and then remove camshaft bracket
(1).
b.
Loosen mounting bolts in reverse order as shown in the figure.
c.
Insert a suitable tool into the notch at front cover.
• Pry off case by moving a suitable tool.
CAUTION:
• Exercise care not to damage mating surfaces.
• After removal, handle front cover carefully so it does not
tilt, cant, or warp under a load.
A
: Bank 2
B
: Bank 1
C
: Dowel pin hole
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