2001 INFINITI QX4 Factory Service Manual

Page 1689 of 2395

INFINITI QX4 2001  Factory Service Manual SEM188A
VALVE DIMENSIONSNBEM0019S12Check dimensions of each valve. For dimensions, refer to SDS
(EM-76).
When valve head has been worn down to 0.5 mm (0.020 in) in
margin thickness, replace valve.
Gri

Page 1690 of 2395

INFINITI QX4 2001  Factory Service Manual SEM867E
Lifter guide bore diameter:
35.000 - 35.021 mm (1.3780 - 1.3788 in)
SEM085D
AssemblyNBEM00201. Install valve component parts.
IAlways use new valve oil seal. Refer to ªVALVE OIL
SEALº, EM-35

Page 1691 of 2395

INFINITI QX4 2001  Factory Service Manual SEM532G
3. Before installing the cylinder head gasket, be sure that No. 1
cylinder is at TDC.
IAt this time, the crankshaft key should face toward the right
bank.
SEM445G
4. Install cylinder heads wit

Page 1692 of 2395

INFINITI QX4 2001  Factory Service Manual SEM877EA
SEM878EA
SEM879EA
5. Install cylinder head outside bolts.
ITightening procedure:
a.Tighten all bolts to 98 N´m (10 kg-m, 72 ft-lb).
b.Completely loosen all bolts.
c.Tighten all bolts to 34 t

Page 1693 of 2395

INFINITI QX4 2001  Factory Service Manual SEM653F
IIdentification marks are present on camshafts.
Bank INT/EXH ID mark Drill markPaint mark
M1 M2
RHINT R3 Yes Yes No
EXH R3 No No Yes
LHINT L3 Yes Yes No
EXH L3 No No Yes
SEM533G
IPosition cams

Page 1694 of 2395

INFINITI QX4 2001  Factory Service Manual SEM885EA
SEM886EA
ITighten the camshaft brackets in the following steps.
Step Tightening torque Tightening order
1 1.96 N´m (0.2 kg-m, 17 in-lb)Tighten in the order of 7 to 10,
then tighten 1 to 6.
2

Page 1695 of 2395

INFINITI QX4 2001  Factory Service Manual 12. Apply sealant to the hatched portion of rear timing chain case.
IApply continuous bead of liquid gasket to mating surface of
rear timing chain case.
Refer to ªPOSITION FOR APPLYING LIQUID GASKET

Page 1696 of 2395

INFINITI QX4 2001  Factory Service Manual SEM418G
ICheck that valve lifters on No. 1 cylinder are loose and valve
lifters on No. 4 are tight.
If not, turn crankshaft one revolution (360É) and align as above.
SEM893E
7. Check only those valve