1938 Cadillac V16 - GM Heritage Center

Cadillac-LaSalle Preliminary Service Information 21
ignition switch and knobs for throttle, cigar
lighter and radio, which for safety are mounted in
a recessed panel. The clock is an accessory on
LaSalle, and standard on all Cadillacs. Although
radio is still an accessory, the grille and control
knobs are fitted to all cars. The glove compartment
constitutes the right hand section of the
board.
The starter switch is mounted at the extreme
left, with the push-pull light switch just above it.
The positions of the light switch, used in conjunction
with the foot control, are the same as
heretofore. The two-position instrument lamp
switch is mounted on the flange of the board just
below the center panel. There is no rheostat connected
to the instrument lamps. The lock lamp,
which illuminates the ignition switch, takes the
place of the map lamp formerly used.
The instrument lamp switch, when moved to
the left-hand position, lights the instrument
lamps, provided the headlamps are also turned on.
When the switch is moved to the right, the instrument
lamps and lock lamp are lighted, regardless
of the headlamps. Ordinarily the switch will be
moved to the left-hand position, in which th-r
instrument lamps will be lighted whenever the
driving lights arc turned on.
Accessory installation has been simplified bv
providing for the mounting of control brackets
and switches along the instrument board bottom
flange.
Starter ^Lighting
Button Switch
Radio
Controls
Throttle
Ash Tray
Press Here
Fig. 21. Instrument panel, LaSalle, typical of 38-series Cadillacs
Radiator
38-50
Radiator:
Area of core in sq. in 414
Thickness of core 3"
Capacity of cooling system 25 qts.
Hose Connections:
Cylinder head to radiator
(2 used):
Diameter, inside \}\"
Length 10¾"
Radiator to water pump
(2 used on 38-90):
Diameter, inside 2"
Length
7'i"
38-60 38-65 & 75 38-90
404 414 505
3" 3li" 3½"
24 qts. 25 qts. 30 qts.
l.'i"
1'/
10½" 10¾" 10¾"
1" 2"
6 S 4* 7',i" 4¾"
The radiator, shutters, and thermostat on the
38-series cars are very similar to those used on the
37- series. The most important new features are a
new method of adjusting the shutters on all series
and a novel thermostat mounting on the 38-90
only.
Cooling efficiency has been improved on LaSalle
and Cadillac V-8's by increasing the area of the
grille opening. The frontal area of the core itself
is unchanged on 38-50, 65 and 75- The core on the
38-60 is lower and wider than heretofore, and is
more efficiently uncovered by the grille, although
the area is slightly less. The thickness of the
core is 3 inches on 38-50 and 60 and 3 1 o inches on
all other Cadillacs.
The 38-90 ra diator
H U l l l mv. Jl'y^J. A „w|- .
larger, increasing reserve water capacity. The
thickness of the core has been decreased to 3½
inches, which provides an increase in cooling
efficiency, and the width has been increased to
provide slightly greater area. The new grille has
a larger opening area and better air distribution
characteristics. The cooling system capacity has
been increased.
The 38-90 radiator shutter thermostat has been
moved to the rear of the top tank, where it is more
accessible and is protected from cold air blasts
which might cause irregular operation. The