2009 INFINITI QX56 Factory Service Manual

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Page 1881 of 4171

INFINITI QX56 2009 Factory Service Manual EM-58
< ON-VEHICLE REPAIR >
CAMSHAFT
Camshaft End Play
• Install dial gauge in the thrust direction on the front end of the cam-shaft. Measure the end play when the camshaft is moved forward/
backwa

Page 1882 of 4171

INFINITI QX56 2009 Factory Service Manual CAMSHAFTEM-59
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• Measure the diameter of the valve lifter.
Valve Lifter Hole Diameter• Measure the diameter of the valve lifter hole of the cyli

Page 1883 of 4171

INFINITI QX56 2009 Factory Service Manual EM-60
< ON-VEHICLE REPAIR >
CAMSHAFT
3. Install the RH bank (B) and LH bank (D) camshaft brackets (A).• Install by referring to the installation location mark (E) on theupper surface.
• Install so

Page 1884 of 4171

INFINITI QX56 2009 Factory Service Manual CAMSHAFTEM-61
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- Position No. 1 camshaft bracket close to the mounting posi-
tion, and then install it to prevent from touching liquid gasket
applie

Page 1885 of 4171

INFINITI QX56 2009 Factory Service Manual EM-62
< ON-VEHICLE REPAIR >
CAMSHAFT
5. Install the camshaft sprockets using the following procedure:• A: LH bank shown
a. Install the camshaft sprockets aligning them with the matching marks painte

EM-62
< ON-VEHICLE REPAIR >
CAMSHAFT
5. Install the camshaft sprockets using the following procedure:• A: LH bank shown
a. Install the camshaft sprockets aligning them with the matching marks painted on the timing chain (B) and the camshaft sprock-
ets (C) before removal. Align the camshaft sprocket key groove
with the dowel pin on the camshaft front edge at the same time.
Then temporarily tighten camshaft sprocket bolts.
• Install the intake (VTC) (A) and exhaust (B) side camshaft
sprockets by selectively using the groove of the dowel pin
according to the bank for the exhaust (B) side camshaft
sprockets. (Common part used for both exhaust banks.)
NOTE:
Use the groove marked "R" for RH bank and "L" for LH bank.
b. Lock the hexagonal part of the camshaft in the same way as for removal, and tighten the camshaft sprocket bolts.
c. Check again that the timing alignment mark on the timing chain and on each sprocket are aligned.
6. Install the chain tensioner using the following procedure: NOTE:
LH is shown.
a. Install the chain tensioner. • Compress the plunger and hold it using a stopper pin wheninstalling.
• Loosen the slack guide side timing chain by rotating the cam- shaft hexagonal part if mounting space is small.
b. Remove the stopper pin and release the plunger, and then apply tension to the timing chain.
c. Install the chain tensioner cover onto the front cover. • Apply liquid gasket as shown.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-15, "
Recommended Chemical Products and Sealants".
7. Check and adjust valve clearances. Refer to EM-18, "
Va l v e
Clearance".
8. Installation of the remaining components is in the reverse order of removal.
Inspection after InstallationINFOID:0000000005885890
INSPECTION OF CAMSHAFT SPROCKET (INT) OIL GROOVE
WARNING:
• Check when engine is cold so as to pr event burns from any splashing engine oil.
CAUTION:
AWBIA0152ZZ
AWBIA0151ZZ
Chain tensioner bolts : 6.9 N·m (0.70 kg-m, 61 in-lb)
Chain tensioner cover
bolts : 9.0 N·m (0.92 kg-m, 80 in-lb)KBIA2479E
KBIA2547E
Revision: December 20092009 QX56

Page 1886 of 4171

INFINITI QX56 2009 Factory Service Manual CAMSHAFTEM-63
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• Perform this inspection only when
DTC P0011 is detected in self-diagnostic results of CONSULT III
and it is directed according t

Page 1887 of 4171

INFINITI QX56 2009 Factory Service Manual EM-64
< ON-VEHICLE REPAIR >
OIL SEAL
OIL SEAL
Removal and Installation of Valve Oil SealINFOID:0000000005885891
REMOVAL
1. Remove the camshaft relating to the valve oil seal to be removed. Refer to E

Page 1888 of 4171

INFINITI QX56 2009 Factory Service Manual OIL SEALEM-65
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4. Lock crankshaft using Tool (A).
5. Matchmark crankshaft pulley bolt flange and crankshaft pulley for installation.
6. Remove the c

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