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CARTER CARBURETOR CORPORATION, ST. LOUIS, MO., U. S. A.
Form 64328—Canadian
OLDSMOBILE 4665-4675
March, 1940
Reprinted December, 1944
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MOTOR SERIAL NUMBERS
824681 and higher
CAR SERIAL NUMBERS 466S—3500 Series—0352700363 and higher 4665—3600
Series—0361102492 and higher Note: Cars previous to above serial numbers,
use 426S carbureter; see 1939 catalogue page.
U. S. CAR SERIAL NUMBERS (TOURIST AND IMPORTED CARS)
Lansing— F-40— F-703001 and higher
G-40—G-355001 and higher
Linden— F-40—LF -556001 to LF -600000
G-40— LG-108001 to LG-300000
So. Calif.— F-40—CF -515001 to CF -540000
G-40—CG-16001 to CG-100000
No. 467S used on cars with Hydra-Matic
transmission only; 466S used on cars
with Standard transmission only.
W A- I
CARBURETER SPECIFICATIONS
For Oldsmobile Six Cylinder Engine, Models "F" and "G"—3-7/16
Inch Bore, 41/8 Inch Stroke
.040 x .100 inch. Bottom of port .0 to .004 inch above *op edge of valve.
Main Nozzle: In primary venturi, angle 45°. Closed tip. Inside diameter
No. 30 drill.
Upper hole: No. 75 drill on 45° angle.
Lower hole: No. 46 drill on 70° angle.
Metering Rod: (Vacumeter Type) Economy step, .079 inch diameter; middle step
tapers to .072 inch diameter; power step .054 inch diameter. Length 3-9/64
inches.
Metering Rod Jet: .1015 inch diameter.
Metering Rod Setting: Use gauge, part No. TI09-102 (2.4611 inches).
Accelerating Pump: Low pressure type with adjustable stroke. Pump discharge
jet, size No. 72 drill.
Intake ball check, size No. 62 drill.
Discharge ball check, size No. 32 drill.
Relief passage (to outside), size No. 42 drill.
Pump Adjustment: 13/64 inch plunger travel (full throttle position) short
stroke. Use gauge No. T109-1175.
Choke: Climatic Control, set 2 points rich (466S), set at index (467S). Butterfly
type, offset valve, with pressure relief pop-pet valve.
Choke Heat Suction Hole, in body, size No. 38 (.1015") drill (466S),
size No. 34 (.111") drill (467S).
Motor Tune-Up—Be Accurate! Always Use Feeler Gauges!
CAUTION: Change worn or leaky flange gaskets. Tighten manifold bolts and
test compression before adjusting carburetor.
Casting Number 194 on Face of Flange
Down-Draft Carbureters 466S-467S With Climatic Control—List Price $29.40
A $6.25 exchange allowance is deducted from the list price if buyer turns
in old carbureter.
OLDSMOBILE
SIX
MODELS
"F-40 & G-40"
1940
4675 Superseded by 466S)
Dimensions: Flange size, 11/4 inch S. A. E.
Primary venturi, 11/32 inch I. D.
Secondary venturi, 11/16 inch I. D.
Main venturi, 1-5/16 inch I. D.
Float Level: Distance from seam of float (at free end) to tip on lower edge
of float chamber cover, when needle is seated, to be 3/8 inch.
Vents: Outside, No. 10 drill. Inside, none.
Gasoline Intake: Square vertical needle. Size No. 46 drill hole in needle
seat.
Gas Line Connection: 5/ 16 inch Weatherhead nipple. Low Speed Jet Tube: Jet
size, No. 68 drill.
By-pass, size No. 53 drill.
Economizer, .0695-.0705 inch diameter.
Idle bleed, size No. 56 drill.
Idle Port: Length, .200 inch; width, .030 inch.
Idle Port Opening: .158 to .162 inch above valve with valve closed tight.
Idle Screw Seat: No. 46 drill.
Set Idle Adjustment Screw: 1/2 to 11/2 turns open. For richer mixture, turn
screw out. Do not attempt to idle engine below 6 m. p. h.
Vacuum Spark Port: Horizontal slot (round end) type. Size:
Idle Adjustment Screw Setting
1/2 to I I/2
Turns Open
Correct Float Level
(Measure from
Set Valves machined surface of
Intake .008" small projection to top of seam)
Exhaust .011" 3/8 Inch
VALVE CLEARANCE
Spark Set
Plug Gap Breaker Points
.040" .020"Use Timing Light
Breaker Points to Open
Std. Trans.: T.D.C.
Hydra. Trans.: I ° B.T.D.C.
Copyright 1940
Metering Rod Adjustment: Correct setting of metering rod is important and
must be made after pump adjustment. Insert gauge (tool No. T109-102) in place
of metering rod. seating tapered end in metering rod jet. Hold gauge vertical
to insure seating. With throttle valve seated, press down lightly on piston
link directly over piston. There should be less than .005" clearance
between metering rod pin and 'moulder in notch of gauge. Gauge must not drag
on pin. Adjustment can be made by bending lip on piston link so that it contacts
pump arm. (Use tool T109-105.) Remove
BRIEF CARBURETER ADJUSTMENTS
Pump Adjustment: With throttle valve seated and con-
nector link In place (short stroke; hole nearest countershaft), pump plunger
should travel 13/64" from closed to wide open
position. Adjustment should be made by bending throttle connector rod at
lower angle. Pump travel can be measured by using universal pump stroke gauge
T109-117S by placing base of gauge on ridged portion of bowl cover so that
projecting portion of pump gauge rests on top surface of connector lint:
at pump shaft. Hold gauge vertical. The
difference between the number shown by index mark on gauge and install metering
rod and disk. Connect metering
gauge, at wide open and closed positions, should be 13. rod and spring.
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