Carburetors for old Dodge Trucks : DODGE TRUCK 1946 1947Previous | Home | Next |
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CARBURETER ADJUSTMENTS
Correct float adjustment is important and should be made in the following way:
Place float gauge (No. T109-50) across the carbureter body. Press float lever
down to hold float pin against the bottom of the slot in the body casting.
Floats should just clear the projections on the gauge. If adjustment is necessary,
bend lip on float lever toward intake needle to lower level or away from the
needle to raise the float level.
If motor stalls while idling, set throttle lever adjusting screw so motor runs
between 500 and 600 R.P.M. Then set idle adjustment screw (EYB1) %, to 54,
(EYB4) 5 to 1% turns open from closed position. If a vacuum gauge is available,
adjust to highest steady gauge reading.
Accelerating pump is actuated by the intake manifold vacuum and no adjustment
is necessary. However, be sure the bowl cover gasket and flange gasket seal
to prevent any air leaks to the pump vacuum passages.
If engine misses when load is suddenly increased, remove pump jet and clean
with compressed air. However, it is usu-ally advisable to replace the pump
jet, as its cost is nominal. (All jets must be seated gasoline tight.) This
condition may also be due to damaged or worn plunger leather in accelerating
pump cylinder or discharge check in discharge passage. If plunger is removed
from cylinder, use care when installing to avoid damage to plunger leather.
Correct air fuel ratio is provided by a "balance tube" in the air
horn. The balance tube should be checked each time the carbureter is serviced
to see that the passage is open. The object of a balanced carbureter is to
provide a constant air fuel ratio regardless of type, size or condition of
air cleaner. Should the cleaner become clogged, the capacity will be reduced
but the air-fuel mixture ratio will not be changed.
A fuel filter is incorporated in the carbureter bowl casting. It should be
cleaned periodically by removing the filter bowl and element (small discs).
Soak element in acetone or a mixture of half and half Ethyl Alcohol and Benzol
until all foreign material dissolves. Then allow to d'ry. CAUTION-do not blow
off with compressed air which may damage discs,
WHEN SERVICING, USE GASKET ASSORTMENT No. 691, PRICE $0.88; REPAIR PACKAGE
No. 1370, PRICE $6.40
PART NAMES IN BOLD TYPE, LISTED BELOW, INDICATE
PARTS LISTCONTENTS OF REPAIR PACKAGE
Part No. PART NAME List Price
1-500S
-Body flange assembly (complete with
governor) (Sup. by I-534S)
I-534S -Body flange assembly (complete with
governor) ° 23.52
IA-31 Flange gasket ° .08
3-539S -Throttle lever shaft and arm assembly (EYBI) .74
3-583S -Throttle lever shaft and arm assembly (EYB4) .74
4-49IS -Throttle lever assembly .74
6-545S -Air horn assembly 5.88
7-105S Choke valve assembly .74
IIB-17 Pump discharge passage plug .15
IIB-41 Rivet plug (4) .03
1 I B-69 Rivet plug .03
IIB-79 Rivet plug .03
IIB-108 Idle port rivet plug .03
IB-138 Pump jet rivet plug .07
IIB-186S -Governor primary adjusting screw passage
plug and gasket assembly : .45
I I B-194 Bowl drain plug .15
I I B-201 S -Governor secondary adjusting screw passage
plug and gasket assembly .29
IIB-206S Needle seat plug and gasket assembly .74
B-214S -Filter bowl and gasket assembly .88
IIB-220 High speed passage plug .03
14-357S -Choke shaft and lever assembly .74
20-26 *Main metering jet gasket .07
20-35 *Governor primary adj. screw plug gasket .07
20-36 *Governor secondary adj. screw plug gasket .07
20-51 *Step-up jet gasket ° .07
20-52 Step-up piston gasket .07
20-70 *Needle seat gasket .07
20-90 *Filter bowl gasket .07
20-91 *Needle seat plug gasket .07
2I-98S Float and lever assembly 1.83
24-23 Float lever pin .07
25-148S Needle and seat assembly 1.18
30-52 -Filter element (Sup. by 30-55S)
30-55S Filter element 1.47
30A-37 Idle adjustment screw .45
39-10 Choke valve attaching screw (2) 2 for .07
48-73 Pump jet ° .29
61-84 Idle adjustment screw spring .07
61-135 Step-up piston spring .07
61-157 Plunger spring .15
61-299 Choke spring .15
62- 151S Choke tube bracket assembly .36
63-24 Float lever pin retainer .07
63-37 Pump cylinder ball retainer .07
64-93S Plunger rod and piston assembly (Identify
by shaft No. 49-150) 1.83
86-9 Throttle stop screw washer (EYB I) .02
86-10 Choke bracket attaching screw lock washer .02
86-15 Flange stud lock washer (2) .02
86-16 Throttle valve screw lock washer (Sup. by
86-54) --° (2) .02
Part No. PART NAME List Price
86-17 Throttle stop screw lock washer (EYB4) 02
86-51 -Throttle shaft dog lock washer 02
86-54 -Throttle valve screw lock washer (2) .02
101-10 Wire clamp screw 07
101-12 Choke bracket clamp screw 07
101-38 Choke bracket attaching screw (long) 07
101-121 Throttle adjusting screw 07
I01-142S Choke tube bracket attaching screw and
washer assembly
I01-145S Body flange attaching screw and washer
assembly (2) .07
I01-149S Throttle shaft housing attaching screw and
washer assembly (EYB4) (3) .07
101-150S Air horn attaching screw and washer
assembly --° (3) .07
101-160S Cover to governor housing attaching
Throttle lever clamp screw 07
Air horn attaching screw and washer
assembly (Hex head) (2) .22
-Throttle shaft housing attaching screw and
washer assembly (EYBI) 07
-Throttle stop screw (EYBI) 15
-Throttle shaft dog attaching screw 2 for .07
-Throttle valve attaching screw (2) 2 for .07
Body flange attaching screw and washer
assembly (lower) °---- 07
-Throttle stop screw (EYB4) 07
Lead shot - ° ° (2) .03
Choke tube clamp nut .07
Flange nut 07
Throttle lever clamp nut 07
Pump intake check ball 03
Pump discharge check ball 07
-Governor housing cover assembly 1.76
Bowl cover gasket 29
Body flange gasket 08
Governor housing cover gasket 15
-Throttle shaft housing gasket (EYB I) 04
- Throttle shaft housing gasket (EYB4) 04
Idle orifice tube and plug assembly (EYB4) _._ .29
-Idle orifice rube and plug assembly (EYBI) __. .29
Spring washer (Between throttle lever and
flange) (EYBI) 04
Main vent plug gasket 04
-Throttle lever shaft washer 03
-Spring washer (EYB4 between throttle
lever and flange) 04
Main vent tube and plug assembly 66
Step-up jet and gasket assembly 36
Main metering jet and gasket assembly 45
Step-up piston, plate and rod assembly 59
- Carter Seal 05
-Throttle shaft housing assembly (EYBI) 2.21
-Throttle shaft housing assembly (EYB4) 2.58
screw
*Gaskets so marked must be soaked in 90 proof denatured -Parts so marked are
new and listed for first time.
NOTE: Small figures in parentheses preceding list price indicate number of
pieces used in one carburetor. Where no figure is shown, only one is used.
alcohol for 15 minutes, installed on part and let dry before using.