Infiniti I30 (A33). Manual — part 479
SEM948E
Replacement
NHEM0015
CAUTION:
When removing the oil pans, oil pump assembly and timing
chain from engine, first remove the camshaft position sensor
(PHASE) and the crankshaft position sensors (REF)/(POS)
from the assembly.
Be careful not to damage sensor edges.
VALVE OIL SEAL
NHEM0015S01
1.
Remove LH ornament cover.
2.
Remove RH and LH ignition coils.
3.
Remove intake manifold collector supports and intake manifold
collector (RH cylinder head only).
4.
Remove RH and LH rocker covers from cylinder head.
5.
Remove camshaft position sensor (PHASE) and crankshaft
position sensors (REF)/(POS).
6.
Remove oil pan. Refer to “Removal”, EM-13.
7.
Remove timing chain. Refer to “Removal, EM-22.
8.
Remove
camshaft
brackets
and
camshaft.
Refer
to
“Disassembly”, EM-39.
9.
Remove valve lifters and shims.
10. Remove valve spring with Tool.
11. Reinstall any parts removed in reverse order of removal.
Before removing valve spring, fix valve as follows.
Method A:
Piston concerned should be set at TDC to prevent valve
from falling.
SEM826E
Method B:
Remove spark plug, then install air hose adapter into
spark plug hole and apply air pressure to hold valves in
place. Apply a pressure of 490 kPa (5 kg/cm
2
, 71 psi).
SEM983D
Method C:
Install spark plug with suitable washer into spark plug
hole from combustion chamber side.
GI
MA
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
OIL SEAL
Replacement
EM-35
SEM827E
12. Remove valve oil seal.
SEM828E
13. Apply engine oil to new valve oil seal and install it with Tool.
SEM715A
OIL SEAL INSTALLATION DIRECTION
NHEM0015S02
I
Install new oil seal in the direction shown in the figure.
FRONT OIL SEAL
NHEM0015S03
1.
Remove the following parts:
I
Engine undercover
I
Front RH wheel and engine side cover
I
Drive belts
I
Crankshaft position sensor (REF)
I
Crankshaft pulley
Be careful not to damage sensor edge.
SEM829E
2.
Remove front oil seal using a suitable tool.
Be careful not to scratch front cover.
3.
Apply engine oil to new oil seal and install it using a suitable
tool.
OIL SEAL
Replacement (Cont’d)
EM-36
SEM830E
REAR OIL SEAL
NHEM0015S04
1.
Remove transaxle. Refer to AT-283.
2.
Remove flywheel or drive plate.
3.
Remove oil pan. Refer to EM-13.
4.
Remove rear oil seal retainer.
SEM831E
5.
Remove old liquid gasket using scraper.
I
Remove old liquid gasket from the bolt hole and thread.
SEM832EA
6.
Apply liquid gasket to rear oil seal retainer.
GI
MA
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
OIL SEAL
Replacement (Cont’d)
EM-37
Components
NHEM0016
SEM278G
1.
Oil filler cap
2.
Rocker cover
3.
Camshaft bracket
4.
Camshaft
5.
PCV valve
6.
Cylinder head
7.
Blow-by hose
8.
Spark plug
9.
Valve
10. Valve spring seat
11. Valve spring
12. Valve spring retainer
13. Valve collet
14. Valve lifter
15. Shim
CYLINDER HEAD
Components
EM-38
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