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1.Remove the rocker cover
(Refer to ).
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2.Remove the oil feeder
control valve and the taper plug (Refer to ).
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3.Remove the adhesive
attached on the taper plug thread and the thread
hole.
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![](../../../img/11/AK802487AB00ENG.png)
![](../../../img/11/ACE02746AB00ENG.png)
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4.Rotate the crankshaft
clockwise to align the timing marks of the camshaft
sprockets with
the portion shown in the illustration. This brings the No.1
cylinder to the compression top
dead centre. At that time, the operation of the rocker arm
piston with the arrow shown in the
illustration can be checked. 5.Apply engine oil to
all the inner circumferences of the oil feeder control valve
installation
hole of the cylinder head.
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![](../../../img/11/AK802491AB00ENG.png)
![](../../../img/11/AK802492AB00ENG.png)
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6.Insert special tool
sealing bar (MB992282), into the installation hole of the
oil feeder
control valve so that it can reach the back of the
installation hole. Block the oil passage hole
for the rocker arm piston operation. 7.Blow the
compressed air to the installation hole of the taper plug,
using the air
blow gun. At that time, confirm the rocker arm piston is
operated.
note |
To fully confirm the check,
prevent the compression air from leaking as much
as possible
by bind vinyl tape to the end of air blowgun.
The compression air pressure is required more
than 500 kPa.
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8.Turn the crankshaft 360° clockwise to
bring No. 4 cylinder to the top dead
centre position.
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![](../../../img/11/ACE02746AC00ENG.png)
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9.Confirm the rest of the
rocker arm piston (at the portion marked with the arrow), in
accordance
with the procedure in step 7. 10.When the rocker
arm piston does not operate, replace the rocker arm and
shaft assembly (Refer
to ). 11.Install
the oil feeder control valve and the taper plug (Refer to ). 12.Install
the rocker cover (Refer to ).
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