ROCHESTER CARBURETORS
Bulletin 9C-301 1 April 1953
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CHEVROLET-1932-52
Automatic Choke Carb. for 216 Cu. In. Engine CARBURETOR
7004620-SERVICE PKG. 7005060
INSTALLATION
INSTRUCTIONS
1.
For 1932-1936 Replacement (216 Cu. In. Engines, 1-1/4" S.A.E.
Flange), Remove Old Flange
Gasket. New Asbestos Flange Gasket
No. 839632 1/8" thick must
be used between Carburetor and Engine
Manifold.
2. For
1937-1952 Replacement (216 Cu. In. Engines, 1-1/4" Engine
S.A.E. Flange), Install
New Flange Gasket No. 839632
1/8" thick
on top of old Heat Insulator. This
insures proper operation of
Vacuum Operated
Power Systems.
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CARBURETOR ADJUSTMENTS
Make adjustments in following order—
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FIGURE 1
FLOAT LEVEL
ADJUSTMENT
With
air horn fully assembled, gasket in position
and assembly
up-ended on a flat surface (Figure 1);
1. Place
float level gauge in position with gauge
tang inserted in
discharge nozzle.
2.
Bend float arms vertically so
that each float just
touches top
portion of gauge.
3.
Bend float arms horizontally so
that each float is
centered in gauge.
4.
Tilt
assembly 90 degrees each side and check that
floats do not touch gauge.
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FIGURE 2
FLOAT DROP
ADJUSTMENT
As shown in Figure 2, to insure sufficient entry of
fuel under high speed operation,
it is necessary to check
and adjust the float drop. With air horn held right side up and floats
suspended freely, carefully
bend the float tang at the rear of
the float assembly so that
the bottom of the float is 1-3/4" below the gasket surface.
Install air horn assembly to float
bowl and tighten
screws evenly and securely.
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