1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

FUEL SYSTEM & EXHAUST 4-15
CARBURETOR WGD
SPECIFICATIONS:
Make
Model 6 Cyl
8 Cyl
Type
Main Venturi
Primary Venturi
Secondary Venturi
Float Level
Idle Adjustment
Low. Speed Jet Tube
Vents
Gasoline Intake
Carter
WGD 776-S
WGD 773-S
Dual Downdraft 1-1/4"
1-3/16" I.D.
11/32" I.D.
1/32" I.D.
Distance from Lowest part of
float to bowl cover when
needle is seated to be 3/16".
(Use Gauge J-818-3)
1/2 to 1-1/2 turns
open, 6 cylinder. 1 to 1-1/2
turns open, 8 cylinder.
Jet No . 66 D rill, (.033").
By-pass No. 55 drill, (.052").
Economizer 1.15 M.M.
.045" drill. Idle bleed No. 56
(.0465") drill.
Outside only No. 10 drill
(.1935").
Square vertical (push-pull)
needle seat size No. 42
(.0935") drill.
Nozzle
Anti-percolating well; jet size No. 66 drill
Metering Rod Jet
Metering Rod
Accelerating Pump.
In primary venturi, round
end type. Inside diameter
No. 30 drill. Nozzle is Installed
permanently.
DO NOT REMOVE.
.089" diameter
(Vacumeter Type)
Economy step •.068" diameter. Middle step tapers to .063"
diameter. Power step, .048" diameter. Length 2-59/64".
Economy step, .068" diameter. Middle step tapers to .063"
diameter. Power step, .044" diameter. Length 2-59/64".
Pressure type delayed action
plunger. Discharge jet (twin)
No. 74 drill. Intake ball check,
No.40 (.098") drill. Discharge
(Needle seat) No. 50 drill .
Pump jet air bleed passage to
outside 1/8" drill.
Idle Ports
Upper port, slot type length
.200", width .030".
Pump Adjustment
5/16" plunger travel (full throttle
position).
Idle Port Opening
Lower Port (For Idle Adjustment Screw)
157" t o .163" above upper
edge of valve with valve
closed tight.
Size .0615" t o .0655" diameter.
Choke
Climatic Control Butter-fly
type-offset valve. Set on index
for (WGD-773-S). Set two
points lean for (WGD-776-S).
Choke heat suction hole in body
No. 36 drill.