Chapter 8
PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
8-10
Every 2 years
Changing the coolant
:$51,1*
Do not remove the radiator cap until the engine has
cooled to the room temperature. When removing the
radiator cap, place a cloth over the cap, and loosen
the cap about a half-turn or place the lever in the
upright position to release internal pressure. Never
open the radiator cap while the engine is hot, as it
causes steam and hot coolant to blow out and could
result in serious burns. Coolant (containing LLC)
drained from the engine is toxic. Do not dispose of
coolant into regular sewage. For disposal of used
coolant, consult your Mitsubishi dealer.
&$87,21
The service life of LLC is 2 years. Be sure to change
coolant at least once every 2 years.
Fig. 8-15
Radiator cap
Draining the coolant
1.
When draining coolant immediately after engine
operation, let the engine idle at low idling speed for
5 to 6 minutes to lower the coolant temperature to
70 to 80°C [158 to 176°F].
2.
Open the radiator cap.
3.
Place coolant receiving cans under the drain cocks
on the engine, and open the drain cocks to drain
the coolant.
Cleaning the cooling system
1.
Close drain cocks and plugs.
2.
Pour in a cleaning solution (a solution that is non-
corrosive to rubber and metals) in the cooling sys-
tem, and operate the engine at 800 to 900 min
-1
for
about 15 minutes, then drain the cleaning solution.
3.
Close drain cocks and plugs.
4.
Pour in fresh water, and operate the engine at 800
to 900 min
-1
for about 10 minutes. Repeat rinsing
until the draining water becomes clear and clean.
Fig. 8-16
Draining coolant (radiator)
Fig. 8-17
Draining coolant (engine main parts)
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