Willys Station Wagon - Page 20

Occasionally check your temperature gauge while driving.
Should the temperature remain low or around 145? to 150° you
should have your dealer check the thermostat without delay.
Continued driving at sub-operating temperatures may cause
the rapid formation of sludge and damage due to acid etching
of some parts.
Should your engine suddenly overheat first check the fan belt
to be sure the fan is operating. If the fan is operating, the
difficulty is probably due to failure of the thermostat valve to
open. In this case remove the thermostat housing and discard
the thermostat which will allow free flow of the water so that
you may continue your drive. However, have a new thermo-
stat installed as soon as possible.
Keep your radiator core free of dirt and bugs, for a blocked
radiator can not provide sufficient cooling. Clean it by forc-
ing compressed air or water through the air passages from the
rear, forcing the dirt out through the front.
You should flush out the entire cooling system about twice a
year. À good way to do this is to remove the drain cocks from
the block and bottom of the radiator. Place a hose in the
radiator filler opening and adjust the water flow to equal that
draining from the two openings. Start the engine and allow
it to run until the system is thoroughly cleaned. After flushing
you should use a rust inhibitor, in the cooling system which
you can secure from your Dealer, to prevent the formation of
rust and scale.
ANTIFREEZE
With the approach of cold weather an antifreeze solution must
be used to prevent freezing of the water in the cooling system.
It is important that you select an antifreeze having either an
alcohol or ethylene glycol base for neither of these solutions
will harm the cooling system.
The evaporating point of alcohol is approximately 170° Fahr.
which is about the average operating temperature of the cool-
ing system. It will therefore be satisfactory for use, however
some evaporation will occur so it will be necessary for you to
check the solution frequently to be sure freezing will not occur
at anticipated temperatures.
Ethylene Glycol, usually termed a "permanent" type anti-
freeze evaporates little, however any solution lost through
leakage must be replaced.
Before installing anti-freeze check all hose connections to be
sure they are tight, replacing any hoses which have deterior-
ated. This is especially important if you intend to use alcohol,
for you will avoid the possibility of a fire resulting from leakage.
For your convenience to determine the amount of anti-freeze
required, a chart for both alcohol and ethylene glycol is
given below. This chart is based on a safe average of the cool-
ing system capacities of both the four and six cylinder engines.
The actual capacity of the six is 834 qts. and that of the four
is 11 qts.; add one pint if equipped with a hot water heater.
ALCOHOL ETHYLENE GLYCOL
Tem U.S. Imperial Metric U.S. Imperial Metric
Fahr. Quarts Quarts Liters Quarts Quarts Liters
30° 1 % 0.946 1 % 0.946
20° 2% 1% 2.011 2 1% 1.892
10° БЕЛ 2% 3.075 3 24 2.839
0° 44 334 4.022 334 314 3.549
Shir 5 4% 4Л32 415 БУЛ 4.258
—20° 51$ 416 5.205 434 4 4.495
—30° 634 524 6.388 51$ 4% 5.205
—40* 7и 6 6.861 6 5 5.678
Should it be necessary to add antifreeze, be sure to run your engine
sufficiently to thoroughly mix the new solution with the old.