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

4 - 2 ENGINE
SECTION 4
FUEL SYSTEM & EXHAUST
SPECIFICATIONS:
CARBURETOR WA-1-968-S
Metering Rod Jet
(1952 to ‘53, 262 dual)
.1015" Diameter
Make
Type
Main Venturi
Primary Venturi
Secondary Venturi
Flange Size
Float Level
Idle Adjustment
Pump Plunger Travel from
Closed to Wide Open Throttle
Low Speed Jet Tube
Vent
Gasoline Intake
Idle Port
Idle Port Opening
Idle Screw Seat
Main Nozzle:
Carter
Single Throat Down Draft
1-3/8" I.D.
11/32" I.D.
11/16" I.D.
1-1/2"
1/2"
1-1/4" to 2-1/4" turns open
16/64
Jet size No. 65 (.035")
drill. By-pass, size 1.6
MM (.063") drill. Economizer,
in body, .0545" -
.0555" diameter. Idle
bleed, size No. 52 (.0635")
drill.
Outside only No. 10
drill.
Square vertical pushpull
needle, size No. 46
(.081") drill hole in needle
seat.
Length .190", Width
.040".
178" t o .182" above
valve with valve tightly
closed.
No. 46 drill.
Slip nozzle, flush type,
(angle tip) seats in primary
venturi at 45° angle.
Discharge jet size
.110" diameter. Inner
nozzle (seats in slip nozzle).
Inside diameter
No. 31 (.120") drill.
Metering Rod
Length
Economy Step
Middle Step Tapers to
Power Step
Metering Rod Setting:
Use Gauge J-1265 Carter T-109-102
Accelerating Pump:
Anti-Percolator Valve:
(Vacumeter Type)
3-9/64"
.076" Diameter
.063" Diameter
.056" Diameter
Pressure type with adjustable stroke. Discharge
jet, size No. 74 (.0225") drill. Intake
ball check size No. 60 (.040") drill. Discharge
ball check size No. 32 (.116") drill. Relief
passage (to outside) No. 42 (.0935") drill.
Pump Adjustment - 16/64" plunger travel.
Medium stroke. Use gauge No. T-109-102.
Choke: Climatic control, set 1 point lean. Butterfly
type , offset valve. Choke heat suction
hole in body, size No. 40 (.098") drill.
Saxophone Key
Vacuum Spark Port: .054" - .057" diameter.
Bottom of port .049"
above top edge of valve.