Carburetors for old Dodge Trucks : DODGE TRUCKS 1937 1938Previous | Home | Next |
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Page 4
CARBURETER SPECIFICATIONS
1937-1938
CTH I -CTH2-CTJ I
1937-1938
ETJ I -ETJ2-ETL I
DIMENSIONS:
Flange size-S.A.E '/4" 11/2"
Throttle bore
Main venturi °-
FLOAT SETTING _
BOWL VENT:
Outside-Size - - -----
GASOLINE INTAKE
Needle: Triangular, Horizontal. Hole in needle seat. Drill size
IDLE ORIFICE TUBE:
Jet size---- ---°-._ -----_--
Idle air bleed (in body), Size
Idle restriction (in body), Size -
IDLE PORTS (Keyhole Type)
Upper port-length
Upper port-width
Upper port-diameter hole at top
Top of port above edge of valve
Lower port (for idle adjusting screw)
IDLE ADJUSTMENT SCREW: Turns open
MAIN METERING JET:
C. C. flow per minute
VENT TUBE: Through diffuser (air bleed inside bowl), size
MAIN VENT TUBE:
Side holes:
(1 hole .0196" [.50 mm] from end)
(I hole .0196" [.50 mm] from end)
(I hole .0236" [.60 mm] from end)
(1 hole .0236" [.60 mm] from end)
12 holes .0354" [.90 mm] from end)
i2 holes .0354" [.90 mm] from end)
STEP-UP JET: Drill size .... .
1-7/16" (36.51 mm) I-I1/16" (42.86mm)
11/4" (31.75 mm) 1-9/32" (32.54 mm)
5/64" (1.98 mm) 5/64" (1.98 mm)
3/16" (4.76mm) 3/16" (4.76mm)
44 (2.18 mm) 44 (2.18 mm)
.0276" (.70 mm) .0276" (.70 mm)
.067" (1.70 mm) .063" (1.60 mm)
.049" (1.25 mm) .049" (1.25 mm)
.160" (4.06 mm) .128" (3.25 mm)
.030" (.76 mm) .027" (.69 mm)
.063" (1.60 mm)
.118"-.I22" (3.00-3.10 mm) .081 "-.085" (2.06-2.16 mm)
.053"-.057" (1.35-1.45 mm) .053"-.057" (1.35-1.45 mm)
1/4 to I 1/4 to I
244-248 264-268
.0315" (.80mm) .0315" (.80mm)
3/16" (4.76mm)
11/16" (17.46mm)
1-3/16" (30.16mm)
I-11/16" (42.86 mm)
21/64" (8.33 mm)
I-I/64" (25.8mm)
.63" (.94 mm) .63" (.94mm)
ACCELERATING PUMP:
Delayed Action Type-
Seasonal Adjustment, Pump intake size .115"-.120" (2.93-3.05 mm)
.115"-.120" (2.93-3.05 mm)
Pump discharge-restriction (under ball check), .062"-.065" (1.58-1.65
mm) .062"-.065" (1.58-1.65 mm)
size
Pump jet-discharge size .0335" (.85 mm) .030" (.95 mm)
VACUUM SPARK PORT: .069"-.073" (1.75-1.85 mm)
Round type, size_
Bottom of port, distance above valve .015" (.38 mm)