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4G9 ENGINE (E-W) -
Cylinder Head and Valves
11A-9-6
PWEE9502-A
E
Nov. 1995MitsubishiMotors Corporation Revised
Caution
D
Valves must be neutralized one at a time.
D
Put a valve in the container only after sodium
in the preceding one has completely reacted with
water.
Keep fire away from the container during the
neutralization. The resulting hydrogen gas is highly
explosive.
When the reaction has finished (there is no more
generation of hydrogen gas), take the valves out of the
container with large tweezers or the like.
NOTE
The reaction occurs when water enters the cavity in the
valve. Hydrogen gas may be trapped inside the valve,
temporarily blocking the water passage. In such a case,
wait until hydrogen gas in released and remaining sodium
reacts with water.
After the neutralization of sodium, water in the container
contains sodium hydroxide and is highly alkaline. The
water solution should be disposed of according to local
regulations.
Caution
D
Do not let the solution contact the eyes or the
skin.
D
Should it get in the eyes, immediately flush them
with clean water thoroughly, and receive medical
attention. When it contacts the skin, wash with
ample amounts of clean water.
INSTALLATION SERVICE POINTS
"
A
A
VALVE STEM SEAL INSTALLATION
(1) Install the vale spring seat.
(2) Use the special tool to install the valve stem seal. Improper
installation could result oil leaking past the valve guide.
Caution
Do not reuse removed valve stem seals.
SOHC
MD998774
DOHC
MD998775