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Form 6487A
CARTER CARBURETOR CORPORATION, ST. LOUIS, MO., U. S. A.
PACKARD 5315
April, 1942
Reprinted September,1945
MOTOR SERIAL NUMBERS
I942 "160"—E500001 and higher " 180"—CE50000
I and higher
PACKARD
SUPER EIGHT
MODELS 160 &
180
1942
Casting No. 377 on face of flange.
Dual Down-Draft Climatic Control Carb ureter—Model 531 S—List
Price $44.10
A $10.00 exchange allowance is deducted from the list price if buyer
turns in old carbureter.
CARBURETER SPECIFICATIONS
For Packard 8 Cylinder Engine: 311/2 Inch Bore, 45/g Inch Stroke
Dimensions: Flange size, II/4 inch dual, 4 bolt type. Primary venturi,
1 1 /32 inch.
Secondary venturi, 19/j2 inch.
Main venturi, 1-7/32 inch.
Float Level: Distance from float bowl cover, when needle is seated to
be 5/32 inch. (Use gauge No. T109-154.)
Vents: Outside, No. 10 drill—four holes. Inside, none.
Gasoline Intake: Square vertical needle. Size No. 38 drill hole in needle
seat.
Gas Line Connection: 5/16 inch Weatherhead nipple.
Low Speed Jet Tube: Jet size, No. 70 drill. By-pass, size No. 52 drill.
Economizer, size No. 50 drill.
Idle bleed, size No. 52 drill.
Idle Ports: Upper port, slot type, length .190 inch; width .030 inch.
Opening: .152 to .158 inch above upper edge of valve with valve closed
tight.
Lower Port: (For Idle Adjustment Screw) Size, .0615 to .0655 inch diameter.
Set Idle Adjustment Screw: 1/2 to 111/2 turns open. For richer mixture
turn screw out. Do not attempt to idle engine below 350 r.p.m.
Main Nozzle: In primary venturi, angle 45°. Closed tip. Inside diameter
No. 30 drill.
Upper hole: .037 inch diameter on 45° angle. Lower hole: .071 inch diameter
on 60° angle.
Metering Rod (Vacumeter Type): Economy step, .064 inch diameter.
Middle step tapers to .057 inch diameter.
Power step, .054 inch diameter.
Length of rod 2-59/64 inches.
Metering Rod Jet: 2.3 mm (.09055 inch) diameter.
Metering Rod Setting: Use gauge, part No. T109-113 (2.280 inchesl.
Accelerating Pump: High pressure type (spring operated lever). Pump discharge
jets (twin), size No. 72 drill.
Intake ball check, size No. 40 drill.
Discharge (needle seat), size No. 50 drill.
Outside relief to pump jet, none.
Pump Adjustment: 26/64 inch plunger travel (full throttle position) short
stroke. Use gauge T109-117S.
Choke: Carter Climatic Control, set at index. Butterfly type, offset
valve.' Choke heat suction hole, in body, size No. 37 (.104 inch) drill.
Vacuum Spark Port: .054 to .056 inch diameter. Top of port .050 to .054
inch above valve.
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.
Spark
Set Breaker Points .0025" .0125" to .0175"
Plug Gap .028" -i-
PUMP ADJUSTMENT: With pump connector link in place and throttle adjustment
screw backed out, pump plunger should travel 26/64" from closed to wide
open position. Adjustment can be made by bending throttle connector rod at
lower angle. (Use tool T109-75.) Pump travel can be measured by placing gauge
T109-117S on rim of bowl cover around plunger shaft and measuring from top
surface of connector link at pump shaft.
METERING ROD ADJUSTMENT: Should be made when reassembling carbureter
or when leaner than standard rods are installed. (Do not disturb pump
adjustment.) Correct setting of metering rods is important. Procedure
is as follows:
A. Insert two metering rod gauges, No. T109-113 in place
of metering rods. Be sure gauges seat in metering rod jets.
B. Install metering rod pin and pin spring in metering rod arm.
C. Rest screw driver lightly on metering rod arm until metering rod pin
rests on shoulders of notches in both gauges. A slight bend in metering
rod arm may be necessary to equalize.
D. With throttle valves seated and metering rod pin resting lightly on
notches in both gauges, tighten anti percolator arm screw.
E. Remove gauges and metering rod pin and install metering rods, discs,
metering rod spring, pin and pin spring, and hook metering rod spring
on metering rods.
Use Timing Light
Breaker Points to Open
Standard Head: 4° B.T.D.C.
Plus 0°, Minus 11/2°
BRIEF CARBURETER ADJUSTMENTS
Correct Float Level
( Remove Cork Gasket)
5/32"
Idle Adjustment Screw Setting
1h to 11/2
Turns Open
Copyright 1942
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