Buick LeSabre 1965 Service Manual page 41

ENGINE
SPECIFICATIONS 2 - 1 9
thermostat and provides the by-
pass passage through which cool-
mostat valve closes to block cir-
culation through the radiator.
ture control permits the engine
to reach its normal operating
ant returns to the water pump for This thermostatically operated temperature quickly. The ther-
recirculation whenever the ther- by-pass type of water tempera-
mostat v a l v e o p e n s at 180
degrees F.
TO
HEATER
Figure 2-17—Coolant Flow (300 Cu. In. Engine)