2001 INFINITI QX4 Factory Service Manual

Page 1665 of 2395

INFINITI QX4 2001  Factory Service Manual SEM411G
TIMING CHAIN
Components (Contd)
EM-22

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INFINITI QX4 2001  Factory Service Manual CAUTION:
IAfter removing timing chain, do not turn crankshaft and
camshaft separately, or valves will strike piston heads.
IWhen installing camshafts, chain tensioners, oil seals, or
other sliding par

Page 1667 of 2395

INFINITI QX4 2001  Factory Service Manual SEM421G
SEM422G
13. Remove camshaft position sensor (PHASE), CVTC sensors
and crankshaft position sensor (REF).
IAvoid impact such as dropping.
IDo not disassemble the components.
IDo not place them o

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INFINITI QX4 2001  Factory Service Manual SEM415G
17. Disconnect injector harness connectors.
18. Remove fuel tube assembly in reverse order of installation.
Refer to EM-12, ªFuel Tubeº.
SEM416G
19. Remove ignition coils.
20. Remove RH and

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INFINITI QX4 2001  Factory Service Manual SEM419G
23. Loosen the crankshaft pulley bolt.
SEM420G
24. Remove crankshaft pulley with a suitable puller.
25. Remove aluminum oil pan.
Refer to EM-15, ªRemovalº.
26. Temporarily install the suspen

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INFINITI QX4 2001  Factory Service Manual SEM919EA
30. Remove internal chain guide.
31. Remove upper tension guide.
32. Remove timing chain tensioner and slack guide.
SEM966F
IRemove timing chain tensioner. (Push piston and insert a suit-
abl

Page 1671 of 2395

INFINITI QX4 2001  Factory Service Manual SEM427G
35. Remove primary and secondary timing chains along with the
camshaft sprockets.
IDo not disassemble the intake camshaft sprocket.
IAvoid damaging the signal mark protrusion area at the front

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INFINITI QX4 2001  Factory Service Manual SEM928E
InspectionNBEM0013Check for cracks and excessive wear at roller links. Replace
chain if necessary.
SEM930E
InstallationNBEM00141. Position crankshaft so that No. 1 piston is set at TDC on com-