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ENGINE MECHANICAL (J08E)
EN02–10
4.
REPLACE THE NOZZLE SEAT.
(1)
Tap the nozzle seat from the cylinder head lower surface.
Then, screw in a suitable bolt and strike the bolt head with a hammer
to remove the nozzle seat from the cylinder head.
! WARNING
Be sure to wear protective goggles. Punching the nozzle seat when
installing nozzle seat may cause metal chips to fly up.
NOTICE
After removing the nozzle seat, remove the rest of liquid gasket or the
adhesion such as dust completely.
(2)
After inserting the O-ring into the nozzle seat insertion hole of the cyl-
inder head, apply liquid packing (Three Bond No. 1211 or equivalent)
to the lower part of the new nozzle seat and assemble it onto the cyl-
inder head.
NOTICE
Be sure to replace the O-ring with a new one. Reuse of the O-ring may
cause water or gas leakage, resulting in overheating or cracking of
the cylinder head.
(3)
Caulk the nozzle seat with the special tools.
SST:
Bar
(S0947-21210)
Steel ball (SN441-00610)
IMPORTANT POINTS - ASSEMBLY
1.
ASSEMBLE THE VALVE AND VALVE SPRING.
(1)
Install the valve spring retainer at the valve spring upper seat using
the special tool.
SST: Valve spring press (S0947-01170)
NOTICE
•
Be sure to apply engine oil to the contact surface of each part
before assembly.
•
Be sure to place each valve in its original position.
•
When the valve spring is compressed, be careful of damage to
the stem seal due to contact of the upper seat.
•
Since this valve spring is evenly pitched, it can be installed
either end up.
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