Infiniti EX35. Manual — part 726
OIL PAN (UPPER) AND OIL STRAINER
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• Tighten mounting bolts in numerical order as shown in the fig-
ure.
• There are three types of mounting bolts. Refer to the following
for locating bolts.
3.
Install oil strainer to oil pump.
4.
Install oil pan (lower). Refer to
5.
Install oil pan drain plug.
• Refer to the figure of components of former page for installation direction of drain plug washer. Refer to
.
6.
Install in the reverse order of removal after this step.
NOTE:
At least 30 minutes after oil pan is installed, pour engine oil.
AWD : Inspection
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INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSPECTION AFTER INSTALLATION
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 10 minutes.
4.
Check the engine oil level again. Refer to
.
: Engine front
M8
×
25 mm (0.98 in)
: 3, 6, 8, 9, 11, 12, 14, 15, 16
M8
×
50 mm (1.97 in)
: 2
M8
×
90 mm (3.54 in)
: 1, 4, 5, 7, 10, 13
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CYLINDER HEAD
CYLINDER HEAD
Exploded View
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Disassembly and Assembly
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DISASSEMBLY
1.
Remove the following parts:
• Intake manifold collector: Refer to
.
• Rocker cover and spark plug: Refer to
• Fuel tube and fuel injector assembly: Refer to
• Intake manifold: Refer to
• Exhaust manifold: Refer to
• Water inlet and thermostat assembly: Refer to
.
• Water outlets (front and rear), water pipe and heater pipe: Refer to
• Timing chain: Refer to
1.
Valve lifter
2.
Valve collet
3.
Valve spring retainer
4.
Valve spring
5.
Valve oil seal
6.
Valve spring seat
7.
Valve guide
8.
Cylinder head bolt
9.
Spark plug
10. Spark plug tube
11.
Cylinder head (bank 1)
12. Valve seat (EXH)
13. Valve (INT)
14. Valve (EXH)
15. Valve seat (EXH)
16. Cylinder head gasket (bank 1)
17. Cylinder head gasket (bank 2)
18. Cylinder head (bank 2)
19. Engine rear lower slinger
A.
Refer to
: Apply high strength thread locking sealant or equivalent.
Refer to
for symbols not described on the above.
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CYLINDER HEAD
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• Rear timing chain case: Refer to
.
• Camshaft: Refer to
.
2.
Remove cylinder head.
• Loosen cylinder head bolts in reverse order as shown in the
figure with cylinder head bolt wrench (commercial service tool)
and power tool.
3.
Remove cylinder head gaskets.
4.
Remove valve lifter.
• Identify installation positions, and store them without mixing them up.
5.
Remove valve collet.
• Compress valve spring with the valve spring compressor [SST:
KV10116200 (J-26336-A)] (A), the attachment [SST:
KV10115900 (J26336-20)] (C) and the adapter [SST:
KV10109220 (
—
)] (B). Remove valve collet with a magnet
hand.
CAUTION:
When working, take care not to damage valve lifter holes.
6.
Remove valve spring retainer, valve spring and valve spring seat.
7.
Push valve stem to combustion chamber side, and remove valve.
• Identify installation positions, and store them without mixing them up.
8.
Remove valve oil seal using the valve oil seal puller [SST:
KV10107902 (J38959)] (A).
9.
Remove valve seat, if valve seat must be replaced.
A
: Bank 1
B
: Bank 2
: Engine front
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CYLINDER HEAD
• Bore out old seat until it collapses. Boring should not continue beyond the bottom face of the seat
recess in cylinder head. Set the machine depth stop to ensure this. Refer to
CAUTION:
Prevent to scratch cylinder head by excessive boring.
10. Remove valve guide, if valve guide must be replaced.
a.
To remove valve guide, heat cylinder head to 110 to 130
°
C (230
to 266
°
F) by soaking in heated oil (A).
b.
Drive out valve guide with a press [under a 20 kN (2 ton, 2.2 US
ton, 2.0 lmp ton) pressure] or a hammer and the valve guide drift
(commercial service tool).
WARNING:
Cylinder head contains heat. When working, wear protec-
tive equipment to avoid getting burned.
11. Remove spark plug tube, as necessary.
• Using a pliers, pull spark plug tube out of cylinder head.
CAUTION:
• Take care not to damage cylinder head.
• Once removed, spark plug tube will be deformed and cannot be reused. Never remove it unless
absolutely necessary.
ASSEMBLY
1.
If valve guide is removed in step 10 (DISASSEMBLY), install it.
Replace with oversized [0.2 mm (0.008 in)] valve guide.
a.
Using the valve guide reamer (commercial service tool) (A),
ream cylinder head valve guide hole.
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Valve guide hole diameter (for service parts):
Intake and exhaust
: Refer to
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