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

1937-42 (15th->20th Series) - ELECTRICAL

SubjectApplicationDocument
Aero-Drive Indicator Light
always on - headlamp resistance unit bent. grounded
19th
Aero-Drive Indicator Light
on, standing - fuse check
19th-20th
Batteries in New Case
unused, loss of charge - check fluid level, specific gravity
(not specified)
Batteries, Help Owners Conserve
inspection - maintenance /repair
(all models)
Batteries, Run-Down
cold weather, reduced driving - smaller generator pulley, exc. Super Eight
(all models)
Batteries, Selling
immediate need only - inspection, electrical system check-up
(all models)
Battery Charging, High-Speed
disadvantages - not recommended
(all models)
Battery Ground Cables
substandard replacements - OE quality, features
(all models)
Battery Solution, Loss of
overcharging - defective regulator
(all models)
Battery Tester - Stop and Go
new special tool - in-car testing
(all models)
Battery, Keeping Charged
smaller generator pulley reiterated - Delco alignment
(not specified)
Battery, Storage
lead shortage - testing, charging
(all models)
Breaker Points
dirty, burnt oil - plugging distributor hole
1800
Breaker Points
excessive voltage, adjusting regulator - new condensor reiterated
1800
Breaker Points, Blued
hard starting, cold - narrow gap, overcharging
(all models)
Cable Connectors
open circuit, poor contact - inspection/correction
(not specified)
Courtesy Lamp Terminal - Correction
incorrect application specified
19th (exc. 1951)
Courtesy Lamp Terminal
new terminal type in production (application error)
19th (exc. 1951)
Courtesy Lights
front compartment, instrument board - retrofit for early production cars
19th (exc. 1951)
Distributor - Tool Suggestions
spread-nut holding tool
(not specified)
Distributor and Cylinder Head Combinations
additional advance, requires different head - part reference
1800
Distributor Bracket Ratchet - Screw Driver Socket
new special tool - timing adjustment
120-138CD;
115C;
1600-1
Distributor Governor and Vacuum Advance
insufficient reading - proper testing
120C-138CD;
115C;
16th-54th
Distributor Points, Adjusting
contact faces, rubbing block adjustment - point dressing/tension
1st-14th;
120-138CD;
115C;
15th18th
Electrical Equipment - Ordering Parts
Delco-Remy vs. Auto-Lite - supplemental parts list pages issued
120C;
115C;
15th
Generator Brush Set
complete line now available
120-138CD;
115C;
1500-1-2;
1600-1-2-3-4-5;
1700-1-2-3-5
Generator Charging Rate
two- vs. three-brush types - ammeter needle indications
120C;
115C;
15th
Generator Pulleys
rundown batteries, low speed driving - new smaller pulleys, faster rotation
120C;
115C;
1600;
1700-1
Generators and Regulators
new two-pole, shunt-wound system - operation, precautions, checks
18th
Head Light Door Gasket
serviced separately from bezel - installation
19th (exc. 1951)
Headlamp Aiming - Super Eight
multi-beam headlamps - corrected instructions
1703-5
Headlamp Unit Wrench
new special tool - slotted for headlight cable
1600-1-3-8
Headlamps, How to Use the New (Sealed Beam)
upper/lower beams - light/foot switch operation
18th
Headlight Switch - Super Eight and Twelve
improved access for service - removal procedure
15th
Headlight Switch, Instrument Board
shaft interference, switch body distorted - instrument panel spacer
1600-1-1A-1D-2
Headlight Tester
new service tool
(all models)
Headlights, New Style Sealed Beam
improved design - use in pairs
18th-54th;
55th-56th
Heat in Car Interiors
battery box cover off - proper fastening
All Models
Heat in Cars
battery box cover off - proper fastening, reiterated
All Models
Horn Diaphragm - Parts Book Correction
supplier numbers - applications
16th
Horn Ring Rattle
rough roads - shim/stretch support spring
19th-20th
Ignition Breaker Points
hard/no starting, blued/oxidized points - high capacity condensor, regulator adjustment
1800
Ignition Cut Out
Econo-Drive, decelerating - relay adjustment
18th-20th;
(21st)
Ignition Cut-Out
Aero-Drive, decelerating - relay point checks/adjustments
18th-19th
Ignition Cut-Out
Econo-Drive - relay adjustment/check
18th
Ignition Drowning Out
water - new coil/plug insulators, ignition wire sealing compound
All Models
Ignition Point Grinder
new special tool - in-car service
(all models)
Ignition Timing
specifications change - high compression heads only
1600
Lamp (License) Rear Compartment Lid Lock Handle Assembly
superseded - now includes small detail parts
1800-1-3
Lamp Bulb Pliers
new special tool - grips bulb base
(all models)
Lamps, Fender and Tail
parts list, shop manual error - polarized bulb base, applications clarified
18th
Shop Manual Corrections (1938-1939)
starter motor oilers - Super Eight
1603-4-5;
1703-3A-5
Spark Knock
light governor spring - part number change
1801
Spark Knock
new, modified spark advance - light governor spring for service, identification
1801
Spark Knock Again
lower octane, carbon deposits - spark advance, additional head gasket
(all models)
Spark Plug Cleaning
use of sand blast cleaner - proper gap
(all models)
Spark Plug Covers
hard/no starting, dirt/moisture - new covers prevent shorts
16th-17th
Spark Plug Covers
hard/no starting, dirty spark plug porcelains - new bakelite covers
16th-17th
Spark Plug Gap, Magnifying and Adjusting Tool
new special tool - for new style plugs
(all models)
Spark Plug Part Numbers
AC, Champion, Auto-Lite - cross-reference
1st-8th;
10th-14th;
120-138CD;
115C;
15th-21st
Spark Plug Terminal Nuts
brass, wartime shortage - plugs shipped less nuts
(not specified)
Spark Plugs, Hot
driving speed reductions, fouling - new higher heat range
120C-138CD;
115C;
16th-20th
Spark Plugs, Resistor Type
cross-referenced - proper gap
120C-138CD;
115C;
16th-23rd
Spark Plugs, Shorted
dirt, moisture - clean porcelain
(all models)
Spark Plugs, The Why and How of 10mm
engine speed/compression, temperature stabilization - service precautions
120C,
115C;
15th
Spark Plugs, Wiping Off
oil/dust, moisture - shorting over porcelain
(all models)
Starter Motor (Battery) Cable
chafing, shorts - rerouted, additional clip
1700-1-2-3-5
Starter Motor Bendix Drive - Anti-Kick Out Type
false starts, premature disengagement - new type, operation
20th-25th
Starter Motor, Replacement
superseded part - external ground wire eliminated
20th
Starter Switch, Car (Carburetor Switch)
operation, failure - checks, adjustments
1951;
20th;
(21st-26th)
Starter Switch, Generator Connection to
new safety feature, cut-off - new solenoid switch, retrofit
1951;
20th
Starting Circuit
engine not cranking - circuit checks
1951;
20th
Starting Circuit
generator-grounded, safety-type - return to starter ground
20th
Starting Circuit
starter solenoid ground relocation, carburetor switch operation - reiterated
20th;
(21st-26th)
Starting the Motor Without Getting into the Car, Handy Way to
remote starter switch - fabrication and use
(not specified)
Voltage Regulator - Dont Forget It
blackened breaker points, burned out bulbs - excessive voltage, reiterated
1800
Voltage Regulator Adjusting Gauges and Feelers
new special tool package - all types
(all models)
Wiring Diagram, Hydraulic
new model information - window regulator hydraulic
2006-7-8
Wiring Diagrams - Other Models
new model information - chassis
20th
(exc. 2000-01-03-06-10-11)
Wiring Diagrams
new model information
17th
Wiring Diagrams
new model information
18th
Wiring Diagrams
new model information
19th (exc. 1951)

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

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Disclosures & Disclaimers

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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