Chevrolet with Old Carter Carburetors : CHEVROLET 1925 1926 1927 1928 1929 1930 1931

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CHEVROLET 1925 1926 1927 1928 1929 1930 1931

CARBURETER SPECIFICATIONS
Bore and Stroke: 1925 thru 1928—Carbureters 4S - 85S - I11S - 1025—3 11/16" Bore; 4" Stroke
1929 thru 1931—Carbureters I25S - 1365 - 150S -3 5/16" Bore; 33/4" Stroke
1925-6-7 1927 1927 1928 1929 1929 1930-3 I
4S 85S IIIS I 02S I25S I36S 1505
DIMENSIONS:
Flange Size
UPPER WELL:
Depth from Standpipe Seat
LOWER WELL: I. D
.
FLOAT LEVEL
INSIDE VENT: (No outside vent)
GASOLINE INTAKE GAS LINE CONNECTION
LOW SPEED JET TUBE:
Jet Size
By-Pass
Economizer
IDLE PORT:
Length °
Width
tOpening above valve

BY-PASS:
Under Idle Port
IDLE ADJUSTMENT SCREW:
Turns open
MAIN WELL JET
Auxiliary Jet
MULTIPLE JET NOZZLE:
Vertical Jet
Diagonal Jet
Top, I. D
ACCELERATING JETS:
No.—Drill—Distance from Top
METERING ROD:
Diameter, Top ---
Diameter, Bottom
Length
STANDPIPE:
Round Nose: I. D.----°
Venturi.
Air Holes in Base
Air Slots: Height