Dodge B-I-B 1948 - THE COOLING SYSTEM

THE COOLING SYSTEM
It is a recogni2;ed fact that a truck engine operates most efficiently
at a certain temperature. The cooling system of your Dodge engine
automatically maintains the most desirable engine operating tem-
peratures under all normal operating conditions.
When the engine is started cold, a thermostat prevents the cir-
culation of water to the radiator and a simple by-pass allows the
water to circulate only in the water jackets of the engine until
normal engine operating temperature has been reached. When the
water temperature, as shown by the heat indicator, reaches a pre-
determined point, the thermostat starts ta : open allowing some water
to circulate through the radiator and when the thermostat is fully
open it allows unrestricted radiator circulation. As the water circu-
lates through the radiator it is cooled, but when the temperature of
the water in the engine goes below the desired temperature the
thermostat starts to close and retards circulation through the radia-
tor, but not through the engine. Therefore, by automatic operation
of the thermostat and by-pass the desired temperature is auto-
matically maintained .
FAN BElT
ADJUSTING
STRAP
LOCK
SCREW
FAN BELT ADJUSTMENT
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