Cooling System - Cadillac 1937 LaSalle VVI Information

Any adjustments to the Automatic Choke Mechanism
should be made at an Authorized Service Station.
The carburetor float setting is correct when the distance
from the gasoline level to the top of the float bowl flange is
jHi*.
A i r Cleaner—Your LaSalle car is fitted with an air
cleaner of the "oil bath type," which operates very efficiently
in removing dust from the air drawn into the engine. As
this type of cleaner accumulates considerable dust and
dirt, it requires regular cleaning every 2,000 miles, or
oftener if extreme conditions are encountered.
The cleaner is cleaned and re-oiled in the following manner:
Remove the gauze unit and wash thor-
oughly in gasoline, taking particular care to
wash all the accumulated dirt and dust out
of the wire mesh.
Dry all the units thoroughly, either with
compressed air or an adequate drying period.
Pour one pint of S.A.E. 50 engine oil (S.A.E.
40 in winter) in the reservoir and assemble the
wire mesh and cap.
N O T E : N O oil should be placed on the wire
mesh.
Gasoline Filter—A gasoline filter is provided at the
fuel pump on the front left hand side of the engine. Any
accumulation of water or sediment should be cleaned out
when it can be seen in the glass bowl. Remove the bowl by
unscrewing the thumb nut and swinging the yoke to one
side. If the screen strainer sticks, remove it by pulling
straight down.
Any dirt on the strainer should be washed ofF with gaso-
line, and the bowl should be wiped clean. Then reinstall
screen and bowl, making sure the bowl seats properly against
the cork gasket and tighten.
Other Service Operations—Major service operations
on the engine, such as replacement of bearings or recondition-
ing of cylinders, should be performed only by experienced
workmen having the necessary instructions and equipment.
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ooling System
The attention required by the cooling system consists of
keeping it filled to the proper level with the proper fluid,
and keeping all connections tight to insure a leak-proof
system.
The capacity of the cooling system is 25 quarts when
filled to the proper level, which is one inch below the top of
the upper tank.
Anti-Rust Treatment—When the car is delivered to
the owner, a small amount of chemical inhibitor is added to
the fluid in the cooling system, in order to reduce foaming
and retard the formation of rust and scale, thus helping to
keep the system clean. It is not necessary to add more in-
hibitor each time that water or anti-freeze is added, but
whenever the cooling system is drained and refilled, a suit-
able inhibitor should be added. Your Authorized Service
Station can advise you regarding the proper material to use.
Cleaning Cooling System—It is recommended that
the cooling system be thoroughly cleaned and flushed twice
a year, or every 6,000 miles, preferably by reverse-flow
flushing. In any event, the cooling system should be cleaned
and thoroughly tightened before anti-freeze is added at the
beginning of cold weather.
The following method of cleaning the cooling system can
be used if facilities for reverse-flow flushing are not con-
venient.
Run the engine until it is warm; then stop the engine and
open the three drain valves for the cooling system. One
drain valve is located at the bottom of each cylinder group
and one below the water pump. All three valves must be
open to drain the engine completely. After the liquid has
drained off, refill the cooling system with hot water, run the
engine for a few minutes and again drain the system. Re-
peat this operation until the water is clean when it is drained.
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