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An Index to Service Information for 1937-42 (15th->20th Series) Packards

1937-42 (15th->20th Series) - FUEL & EXHAUST

SubjectApplicationDocument
Accelerator Sticks in Open Position (Electromatic)
linkage catches on clutch cable pulley - spring out of place
19th-20th
Air Cleaner Cover Pads, Loose
poor mileage - restricted air passage
(not specified)
Air Cleaner Oiling Instructions, AC
SAE 50 discontinued - alternate products
(not specified)
Air Cleaner, Oil-Bath - Effect of...on Economy
new natural fiber, restricted from pack-down - proper cleaning
(not specified)
Air Cleaners - Effect on Fuel Economy
clogging - proper cleaning
(not specified)
Air Cleaners
excess oil, leaks - distributor wires shorted
1803-3A-4-5-6-7-8
Air Cleaners, Oil Bath
oil-fouled spark plugs - overfilled cleaner
(not specified)
Air Cleaners, Oil Bath
seasonal oil selection
(not specified)
Carburetion - Super Eight/120
low speed stumble - drill out idle tubes, stretch accelerator pump spring
1801;
1803-3A-4-5-6-7-8
Carburetion
stumble under light throttle - additional field modifications
1803-3A-4-5-6-7-8
Carburetor and Camshaft
production profile change - new carburetor required
1803-3A-4-5-6-7-8
Carburetor: Chandler-Groves Pump Seal Puller
new special tool - procedure
1600; 1700
Carburetor: Choke
stalling, loading, flooding, cold weather operation - checks/adjustments, proper operation
(not specified)
Carburetor: Choke Adjustment
excessive fuel consumption, unloader operation - plugged screen, stuck piston
1901-1A; 1951;
20th;
(21st-23rd)
Carburetor: Choke Screens, Cleaning
poor performance, choke not open - clogged screen (WDO)
1901-1A; 1951;
20th-23rd
Carburetor: Chokes, Sticking
hard starting, loading up - gummed shaft, cleaning
(not specified)
Carburetor: Cleaning Caution
use of compressed air - air horn removal required
(not specified)
Carburetor: Cold Stalling Due to Carburetor Icing
explanation - prevention
(all models)
Carburetor: Cut-Out, High Speed
fuel starvation, Chandler Groves - new design float needle/seat
1600
Carburetor: Dirt in
fuel pump strainer disc separation - loose nuts
18th
Carburetor: Economizer Valve Inspection Cover
new special tool - Chandler-Grove carburetors
115C,
1600
Carburetor: Float Level Gauge
new special tool - instructions
1200;
1300;
1400;
120C;
115C;
1500
Carburetor: Gasket Equipment
sets now available - part reference
905-6;
1001-2-3-4-5-6;
1100-1-2-3-4-5-6-7-8;
1200-1-2-3-4-5-7-8;
1400-1-2-3-4-5-7-8;
120-120C;
115C;
15th
Carburetor: Gasket Equipments
complete gasket sets - now available
905-6;
10th-14th;
120-120C;
115C;
15th
Carburetor: Gasket Sets
now available
17th
Carburetor: Gasket Sets, New - Stromberg
1601-2
Carburetor: Gasket Sets, New
production change - early/late, identification
1600
Carburetor: Idling Adjustment
idle quality - idle air bleeder enlarged - redrill in field
1903-3A-4-5-6-7-8
Carburetor: Miss, Pick-Up
flat-spot/stumble, hot, Chandler Groves - new longer accelerator pump link
1600
Carburetor: Motor Miss
insect debris entering float bowl vents, Chandler-Groves - fabricate/install baffle
1600;
(1700)
Carburetor: Overchoking
loading during warm-up - adjustments reiterated, fast idle cam rod, new thermostats
18th
Carburetor: Overchoking
loading up. rolling - checks/adjustment, Super Eight choke piston modification, heat valve adjustment
18th
Carburetor: Overchoking
loading up. rolling - insufficient heat, choke valve sticking
18th
Carburetor: Settings - Stromberg
model reference
120-138CD;
1601-2;
1701-2;
1801-1A;
1901-1A
Carburetor: Settings
visual identification - reference chart
905-6;
10th-14th;
120-120C;
115C;
15th
Carburetor: Special Tools
new required tools - choke setting, float level gauges
1803
Carburetor: Starter Switch, Car - see:
ELECTRICAL
--
--
Carburetor: Tightening
die-cast parts - air leaks
(all models)
Carburetor: Tools
new tools - Stromberg
1700-1-1A-2
Detonation - Super Eight
main metering jet size reduced, improves performance/consumption - octane reiterated
1703-5
Fuel Economy, Notes on
carburetor adjustments, choke operation, heat control valve spring, octane
(not specified)
Fuel Pump Air Dome
improper installation - metal chips in pump, carburetor
1700-1-1A-2
Fuel Pump Air Dome
new tee fitting included - eliminates drilling
1700-1-1A-2
Fuel Pump Filter
new disc type, interchangeable with screen type - cleaning
17th
Fuel Pump Inlet Hose
weak flow, twisted/restricted - proper installation, telltale
(not specified)
Fuel Pump Noise
kinked/restricted hose or tube
(not specified)
Fuel Pump Repair Kit, Motor
new kit available - Seniors
?901-2-3-4-5-6;
10th-15th;
1603-4-5-7-8
Fuel Pump Screen
edge type - cleaning/inspection
(not specified)
Fuel, Anti-Knock
Super Eight, Twelve motors, performance/mileage, octane/timing
?9th-16th
Fuels
Super Eight, Twelve motors - performance/economy, octane/timing reiterated
?9th-16th
Gas Consumption in Cold Weather
wartime rationing - shortening warm-up period
(all models)
Gas Mileage. Checking
handling complaints, gas-per-mile gauge
(all models)
Gas Tank Removing
proper procedure
19th
Gas Tank, To Remove
proper procedure, bend frame lip - production change
2004-05-07-08-20-21-23
Gasoline
expected changes in octane, volatility - effects, compensation
(all models)
Gasoline Economy
rationing - carburetor adjustments, float level, spark advance, octane
(all models)
Gasoline Economy
spark advance, carburetor jets - operating conditions
(all models)
Gasoline Gum
sticky engine valves - formation, prevention, proper cleaning
(all models)
Gasoline Mileage Testing
new special tool - installation/use, accuracy
(all models)
Gasoline Tank - Parts List Correction
applications corrected
18th
Gasoline, Low Octane
spark knock, preignition - remedies, trade-offs
(all models)
Gasoline, Oil in
low oil consumption, sticking valves - oil as an additive, rust inhibitor
(all models)
Gasoline, Water In
ice formation - cleaning, prevention
(all models)
Heat Control (Valve), Automatic
engine performance - operation, checks and correction
1001-2-3-4;
1100-1-2-3-4-5;
1200-1-2-3-4-5;
1400-1-2-3-4-5;
120-138CD;
115C;
1500-1-2;
1600-1-1A-1D-2-3-4-5;
1700-1-1A-2-3-3A-5;
18th-21st
Heat Control (Valve), Check That
sticking, adjustment - repair kits available
1001-2-3-4;
1100-1-2-3-4-5;
1200-1-2-3-4-5;
1400-1-2-3-4-5;
120-138CD;
115C;
1500-1-2;
1600-1-1A-1D-2-3-4-5;
1700-1-1A-2-3-3A-5;
18th-20th
Heat Control Valve, Carburetor
sticking, carbon/corrosion - shaft clearance
1001-2-3-4;
1100-1-2-3-4-5;
1200-1-2-3-4-5;
1400-1-2-3-4-5;
120-138CD;
115C;
1500-1-2;
1600-1-1A-1D-2-3-4-5;
1700-1-1A-2-3-3A-5;
18th-20th
Heat Control Valve, Sticking
proper diagnosis - rust, lubrication, spring tension
1001-2-3-4;
1100-1-2-3-4-5;
1200-1-2-3-4-5;
1400-1-2-3-4-5;
120-138CD;
115C;
1500-1-2;
1600-1-1A-1D-2-3-4-5;
1700-1-1A-2-3-3A-5;
18th-20th
Idle, Engine - Twelve
mounting changed - shim for service
1207-8;
1406-7-8;
1506-7-8;
1607-8
Idle, Poor
vacuum booster leaks - cover gasket, diaphragm checks
17th
Knock, Fuel
hot weather, reduced octane - checks/adjustments
(not specified)
Linkage Equipment, Carburetor Control
choke, start switch, clutch issues - lost motion, service parts kit (all models)
20th
Linkage Equipment, Carburetor Control
choke, start switch, clutch issues - lost motion, service parts kit (Electromatic)
20th
Linkage, Lost Motion in Throttle
starting difficulty - effect on starter switch, choke
1951;
20th;
(21st-26th)
Miss, High Speed
fuel starvation - install Super Eight air dome
1700-1-1A-2
Muffler Corrosion
condensation, short trips
(not specified)
Muffler Outlet Tube, Exhaust - Now Available
had been difficult to procure
1700-1
Muffler, Exhaust - Now Available
previously difficult to procure
2000-10;
2100-30
Muffler, Exhaust
front tube now attached - part reference
1500-1-2-7-8;
1603-4-5-7-8
Vapor Lock
operating temp, seasonal gasoline grade, pump pressure - checks, remedies
(all models)
Vapor Lock
warm weather - reiterated
(all models)
Winter Driving, Preparing Cars for
fuel system checks and maintenance
(all models)
Winter Motor Temperatures
slower driving, shorter trips, fuel economy - radiator/grille covers, higher temperature thermostat
(all models)

SC = Service Counselor
SL = Service Letter
STB = Service Technical Bulletin
SSB = Studebaker Service Bulletin

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Though previously published elsewhere, this work is provided with my full permission for display on the PackardInfo.com website and the personal use of visitors to that site. Any other unauthorized use, however, is expressly prohibited and may be subject to prosecution. Also, because this index was compiled from documents published by the factory, neither the author nor PackardInfo.com are responsible for errors in content arising from source information.

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