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(2) Flushing the cooling system
Fill the system with a mixture of sodium
carbonate and water (or a commercially
available equivalent).
Use 0.5 kg (1.0 pound) of sodium
carbonate for every 23 liters (6.0
U.S. gallons) of water.
Do not install the cap. The engine
is to be operated without the cap
for this process.
During filling, air must be vented
from the engine coolant passages.
The system must be filled slowly to
prevent air locks. Wait 2 to 3 mi-
nutes to allow air to be vented,
then add mixture to bring the level
to the top.
Operate the engine for 5 minutes with the
coolant temperature above 80°C (176°F).
Shut the engine off, and drain the cooling
system.
OK
6-18
(Open)
(Close)
Stopper
F u
e l
t a n
k
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