1938 LaSalle Production - GM Heritage Center

Temperature Indicator
The temperature of the fluid in the cylinder blocks is
shown on this dial.
The needle should register within the "normal" range
except on long, hard drives in summer weather, when it may
register "hot." This condition need not cause alarm, as the
pressure-operated overflow will normally prevent water
losses at temperatures up to 220°F.
When the engine does run hot on long drives, it is important
to check the oil and water levels frequently. Observe
the precaution given on page 8 when checking the
water level.
The indicator often rises to "hot" right after the
engine is shut off. This condition is entirely normal. It
is due to the heat that remains in the cylinder blocks
after air and water circulation have stopped.
If the indicator should show "hot" during short runs
under normal driving conditions, the cause should be investigated.
Clock
The instrument panel clock (which is supplied as an accessory)
is electrically driven and fully automatic in operation.
Interruptions in the current will naturally cause the
clock to stop. After the current has been reconnected, it is
necessary merely to reset the hands, as the resetting mechanism
will again put the clock in operation.
A regulating knob for correcting fast or slow operation is
located below the instrument panel flange. A small dial
showing movement of the regulator is part of the clock face.
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