Removal And Installation Of Gasoline Tank-Series - Cadillac 1937 LaSalle VVI Information

FUEL T A N K A N D EXHAUST
133
General Description
T h e gasoline tank on all 37-series cars is mounted
in the frame w i t h two metal straps, and can be
removed from below without disturbing any of the
sheet metal parts. T h e gasoline line to the
engine is carried i n brackets attached to the left
frame side member on all series. T h e gasoline
gauge operates electrically. D e t a i l s of its opera-
tion and servicing are given on page 159 of the
Electrical Section.
T h e exhaust pipe on series 37-50 and 60 cars
passes d o w n from the manifold at the front of
the right-hand cylinder block below the engine
side pan and then to the rear along the right frame
side member. T h e cross-over for the left-hand
cylinder bank is just i n back of the carburetor.
A single muffler is used on these models.
O n series 37-65, 70 and 75 cars, the exhaust pipe
passes down from the manifold at the rear of the
right-hand cylinder block below the engine side
pan and then to the rear along the right frame
side member. T h e cross-over is at the same place
as on series 37-50 and 60 cars. T w o mufflers
connected i n tandem are used on these models.
T h e exhaust system on series 37-85 cars is
similar to that of the series 37-75 cars except that
the cross-over for the left-hand cylinder bank is
at the rear of the cylinder block instead of in a
central location.
O n series 37-90 cars, two entirely separate
exhaust systems are used, one for each cylinder
bank. E a c h of these systems includes an exhaust
manifold, an exhaust pipe, a muffler, a t u n i n g
chamber, and a t a i l pipe. T h e exhaust manifold
is i n three sections to allow for expansion.
T h e exhaust pipes on a l l series are covered w i t h
a heavy asbestos insulation to prevent excessive
heat under the hood or in the body, and to muffle
exhaust noises. R u b b e r cushions are used between
the muffler supports and the frame on all models
to prevent exhaust vibrations from being trans-
mitted to the body.
• Slot for
Expansion
Porcelain End
Spreader
Fig. 7. Exhaust Pipe Mounting
T h e exhaust systems of all 37-series cars, except
the V-16, include'"a new type mounting bracket
which permits the muffler and tail pipe to slide
endwise as the system expands or contracts
during various temperature changes. This device
is illustrated i n F i g . 1, and tends to eliminate
any snapping noise in the exhaust system due
to the above changes i n temperature and phys-
ical conditions.
T h e tail pipe end on all series cars is porcelain
enameled to prevent rust.
Service Information
1. Removal and Installation of Gasoline
Tank
Series 37-50 and 60
T o prevent any possibility of breaking off the
filler neck for the gasoline tank on series 37-50
and 60 cars, the following procedure should be
followed when removing the gasoline tank on these
models :
1. D r a i n gasoline tank.
2. R e m o v e short filler neck extending through
the fender and its rubber grommet from car.
3. Raise rear end of car from floor with chain
fall.
4. M o v e t a i l pipe to right of car, away from
tank.
5. R e m o v e the filler neck clamp at the frame.
6. Disconnect the gasoline line
7. R e m o v e the gasoline tank support straps
8. M o v e tank rearward and lower the front
end to disconnect the gasoline gauge wire on the
float unit.
9. R e m o v e tank from car. See F i g . 2.