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Carburetors for old Dodge Trucks : DODGE TRUCKS CAB OVER ENGINE 1940 1941 1942

Form 6444B—Canadian
DODGE TRUCKS 1940-42
June, 1940
Reprinted October, 1945
CARBURETER INDEX AND PRICE LIST
All Prices Subject to Prevailing Surcharge
Year Carbureter Car Model Last Exchange
Numbers Price Allowance
1940 6C1 DBM3 up to 90-000-014
DBM4 up to 90-001-029 except 90-001-027 Sup. by 6DIR
1940 6C2 DBM4 on 90-001-027, also on
90-001-030 to 90-001-037 Sup. by 6DIR
1940 6D1 DBM3 after 90-000-014
DMM4 after 90-001-037 Sup. by 6DIR
1941 6D1 DCM3 up to Eng. No. TI28E-1022C
1941 t6D I R DCM4 up to Eng. No. T128G-1080C Sup. by 6DIR
$22.05 $2.50
1941 6E1 DCM3 after Eng: No. TI28E-1022C
DCM4 after Eng. No. T128G-1080C 22.05 3.75
1942 6E1 DDM3-DDM4-DDM7 22.05 3.75
1941-42 6F1 22.05 2.50
1941-42 6G1 22.05 2.50
16DIR Carbureter will be shipped on orders for 6CI, 6C2 or 6D1. The instructions below should be followed when 6DIR Carbureter is used to replace 6CI, 6C2 or 6DI.
6CI—Use the following parts which are packed in carton with carbureter:—4-238S, 4A-39S, and 62-I18S.
6C2—No additional parts necessary.
6DI—Use 156-29 gas line connection which is packed in carton with carburetor.
MOTOR TUNE-UP-BE ACCURATE! ALWAYS USE FEELER GAUGES!
CAUTION: Change worn or leaky flange gaskets. Tighten manifold bolts and test compression before adjusting carbureter.
WU-4
TCMPCNPTUBC
CLCR Nc1
SPARK BREAKER IGNITION TIMING SET VALVES FLOAT LEVEL
PLUG
GAP POINTS With Motor Hot (Remove Gasket)
DDM7—2° or .002" A.T.D.C. Correct Float Level
025" 020" DCM3—4° or .006" B.T.D.C. Intake .008" 1 /32" to 1/16"
DBM3, DBM4, DCM4, DDM3, Exhaust .012" Below Edge of
DDM4—T.D.C. Casting
CARBURETER ADJUSTMENTS

DODGE TRUCKS CAB OVER ENGINE 1940 1941 1942

Figure shows 1940 Carbureter, No. 6CI.
To Secure a Good Idle: Set throttle lever adjusting screw so motor runs approximately 300 rpm. Then set idle adjustment screw so motor fires evenly. Correct setting will be found between (1/4 to 11/4 on 6E1, 6FI) (1/2 to 11/2 on 6CI, 6C2, 6D I, 6D I R) turns open. A richer mixture is obtained by backing out adjustment screw—a leaner mixture by turning screw in. If motor stalls while idling, remove idle passage tube and idle jet tube and clean with compressed air.
To Improve Acceleration: Examine pump link setting: For winter driving, link screw should be set in outer hole, giving long stroke; for hot weather, in high altitudes, pump link shouldbe connected in inner hole, giving short stroke. If this does not give desired results, the main metering jet, pump metering jet,' check valve assembly and pump valve assembly should be removed and cleaned with compressed air.
If Motor Loads—Check Float Level: Wear on lip of float lever will raise float level from factory setting, causing carburetor to load up. To lower float level, bend lip of float lever toward needle. To raise float level, bend lip away from needle. A very slight bend is sufficient. Be sure to bend lip of float, not bracket.
Copyright 1940