2006 INFINITI FX35 Service Manual

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Page 3025 of 4462

INFINITI FX35 2006 Service Manual OIL SEAL EM-231
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Revision: 2006 December 2006 FX35/FX45
Using rear oil seal drift (commercial service tool), press fit
until the height of front oil se

Page 3026 of 4462

INFINITI FX35 2006 Service Manual EM-232
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CYLINDER HEAD
Revision: 2006 December 2006 FX35/FX45
CYLINDER HEADPFP:11041
On-Vehicle ServiceNBS003IJ
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Re

Page 3027 of 4462

INFINITI FX35 2006 Service Manual CYLINDER HEAD EM-233
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Revision: 2006 December 2006 FX35/FX45
If the engine speed is out of specified range, check battery liquid for proper gravity. Che

CYLINDER HEAD EM-233
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Revision: 2006 December 2006 FX35/FX45
If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure compression pressure again.
If some cylinders have low compression pressure, pour small amount of engine oil into the spark plug
hole of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check the
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gaskets are leaking. In such a case, replace cyl-
inder head gaskets.
8. After inspection is completed, install removed parts in the reverse order of removal.
9. Start engine, and make sure that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-748, "
TROUBLE DIAGNOSIS" .
ComponentsNBS003IK
Removal and InstallationNBS003IL
REMOVAL
1. Remove engine assembly from vehicle. Refer to EM-243, "ENGINE ASSEMBLY" .
2. Remove exhaust manifold. Refer to EM-183, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
3. Remove camshaft. Refer to EM-215, "
CAMSHAFT" .
1. Engine coolant temperature sensor 2. Washer 3. Cylinder head gasket (left bank)
4. Harness bracket 5. Cylinder head (right bank) 6. Cylinder head bolt
7. Cylinder head gasket (right bank) 8. Cylinder head bolt 9. Cylinder head (left bank)
PBIC2756E

Page 3028 of 4462

INFINITI FX35 2006 Service Manual EM-234
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CYLINDER HEAD
Revision: 2006 December 2006 FX35/FX45
4. Remove cylinder head bolts in reverse order as shown in the fig- ure with cylinder head bolt wrench (commercial service tool) to

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INFINITI FX35 2006 Service Manual CYLINDER HEAD EM-235
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Revision: 2006 December 2006 FX35/FX45
Crankshaft key should line up with the left bank cylinder cen-
ter line as shown in the fi

Page 3030 of 4462

INFINITI FX35 2006 Service Manual EM-236
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CYLINDER HEAD
Revision: 2006 December 2006 FX35/FX45
Disassembly and AssemblyNBS003IM
COMPONENTS
DISASSEMBLY
1. Remove spark plug with spark plug wrench (commercial service tool).
2.

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INFINITI FX35 2006 Service Manual CYLINDER HEAD EM-237
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Revision: 2006 December 2006 FX35/FX45
Identify installation positions, and store them without mixing them up.
6. Remove valve oi

Page 3032 of 4462

INFINITI FX35 2006 Service Manual EM-238
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CYLINDER HEAD
Revision: 2006 December 2006 FX35/FX45
7. Install valve collet.
Compress valve spring with valve spring compressor, attach-
ment and adapter (SST). Install valve collet

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