1947 NASH

Model Designations:

Nash "600," Series 40, 6 Cylinder

Nash, Ambassador, Series 60, 6 Cylinder

Nash "600," Series 40, 6 Cylinder, Body Styles

4 Door Trunk Sedan, 6 Passenger, Model #4740

Base Price: $1,464; Shipping Weight: 2,786 Pounds; Production Total: 21,500

2 Door Brougham, 6 Passenger, Model #4743

Base Price: $1,415; Shipping Weight: 2,731 Pounds; Production Total: 12,100

4 Door Fastback Sedan, 6 Passenger, Model #4748

Base Price: $1,420; Shipping Weight: 2,826 Pounds; Production Total: 27,700

Nash Ambassador, Series 60, 6 Cylinder, Body Styles

4 Door Trunk Sedan, 6 Passenger, Model #4760

Base Price: $1,809; Shipping Weight: 3,387 Pounds; Production Total: 15,927

2 Door Brougham Sedan, 6 Passenger, Model #4763

Base Price: $1,751; Shipping Weight: 3,312 Pounds; Production Total: 8,673

4 Door Suburban, 6 Passenger, Model #4764

Base Price: $2,227; Shipping Weight: 3,522 Pounds; Production Total: 595

4 Door Fastback Sedan, 6 Passenger, Model #4768

Base Price: $1,767; Shipping Weight: 3,412 Pounds; Production Total: 14,505

1947 NASH

Nash "600," Series 4740, 6 Cylinder, General Specifications

Wheelbase: 112 Inches

Engine Type: Inline 6 Cylinder, L-Head

Bore & Stroke: 3-1/8" X 3-3/4"

Engine Displacement: 172.6 Cu. In.

Compresssion Ratio: 7.00 to 1

Taxable Horsepower: 23.44

Horsepower: 82 @ 3,800 RPM

Torque: 138 Ft Lbs @ 1,600 RPM

Normal Oil Pressure: 30 PSI

Rear Axle Ratio: Not Available

Tire Size: 6.00 x 16 inches; Inflation Pressure, Front 28, Rear, 28

Ambassador 6, Series 4760, General Specifications

Wheelbase: 121 Inches

Engine Type: Inline 6 Cylinder, Overhead Valve

Bore & Stroke: 3-3/8" X 4-3/8"

Engine Displacement: 234.8 Cu. In.

Compresssion Ratio: 7.02 to 1

Taxable Horsepower: 27.35

Horsepower: 112 @ 3,400 RPM

Torque: 208 Ft Lbs @ 1,600 RPM

Normal Oil Pressure: 30 PSI

Rear Axle Ratio: Not Available

Tire Size: 6.50 x 15 inches; Inflation Pressure, Front 26, Rear, 26

Tune Up Specifications, Nash "600," Series 4740

Spark Plug: Gap .025"

Spark Plug Type: Auto-Lite A5, Champion J-8, J-11 or Equivalent

Point Gap: .020"

Firing Order: 1-5-3-6-2-4

Ignition Timing: IGN Mark on Vibration Damper

Engine Idle Speed: 475 RPM

Tappet Clearance, Hot: Intake .015", Exhaust .015"

Cylinder Head Torque: 60 Ft Lbs

Compression Pressure @ Cranking Speed: 120 PSI (Minimum)

Tune Up Specifications, Ambassador, Series 4760

Spark Plug: Gap .025"

Spark Plug Type: Auto-Lite A5, AC-44, Champion J-8, J-11 or Equivalent

Point Gap: .020"

Firing Order: 1-5-3-6-2-4

Ignition Timing: "IGN" Mark on Vibration Damper

Engine Idle Speed: 475 RPM

Tappet Clearance, Hot: Intake .015", Exhaust .018"

Cylinder Head Torque: 65 Ft Lbs

Compression Pressure @ Cranking Speed: 125 PSI (Minimum)

Valve Specifications, Nash "600," Series 4740, 6 Cylinder

Tappet Clearance, Running Hot: Intake .015"; Exhaust .015"

Clearance for Timing: Intake: .019"; Exhaust: .019"

Valve Timing:

Intake Valve Opens @ 6 Degrees Before Top Dead Center

Exhaust Valve Closes @ 10 Degrees After Top Dead Center

Valve Seat Angle: Intake 45 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 37 Lbs @ 1-3/4 inches (New Springs)

Valve Stem Clearance: Intake .002"-.003"

Exhaust .002"-.003"

Valve Specifications, Ambassador, Series 4760, 6 Cylinder

Tappet Clearance, Running Hot: Intake .015"; Exhaust .018"

Clearance for Timing: Intake: .008"; Exhaust: .015"

Valve Timing:

Intake Valve Opens @ 24 Degrees Before Top Dead Center

Exhaust Valve Closes @ 5 Degrees After Top Dead Center

Valve Seat Angle: Intake 45 degrees; Exhaust 45 degrees,

Valve Spring Pressure: 65 Lbs @ 1-11/16"

Valve Stem Clearance: Intake .002"-.004"

Exhaust .002"-.004"

Piston & Ring Data, Nash "600", Series 4740, 6 Cylinder

Piston Removal: From Above

Piston Clearance (Minimum):

Top Land Inch .017"

Top of Skirt, Inch: .001"

Fitting Pistons with Spring Scale:

Piston Supported at its own weight anywhere in the cylinder

Width of Ring End Gap (Minimum):

Compression Ring: .010"

Oil Ring: .010"

Clearance Between Ring & Grooves:

Compression Ring: .002"-.004"

Oil Ring: .002"-.004"

Piston & Ring Data, Ambassador , Series 4760, 6 Cylinder

Piston Removal: Above

Piston Clearance (Minimum):

Top Land Inch .020"

Top of Skirt, Inch: .001"

Fitting Pistons with Spring Scale:

Piston Supported at its own weight anywhere in the cylinder

Width of Ring End Gap (Minimum):

Compression Ring: .010"

Oil Ring: .010"

Clearance Between Ring & Grooves:

Compression Ring: .002"-.004"

Oil Ring: .002"-.004"

Engine Bearing Data, Nash "600", Series 4740, 6 Cylinder

Camshaft End Play: .004"-.006"

Camshaft Bearing Clearance: .001"-.003"

Rod Journal Diameter: 1.875"

Rod Bearing Clearance: .0015"-.002"

Rod End Play: .006"-.012" inches

Rod Bolt Tension: 27-30 Lbs. Ft.

Main Bearing Journal Diameter: 2.4785"-2.4795"

Main Bearing Clearance: .002"

Crankshaft End Play: .006"-.008"

Main Bolt Tension: 70 Lbs. Ft.

Engine Bearing Data, Nash Ambassador, Series 4760, 6 Cylinder

Camshaft End Play: .004"-.006"

Camshaft Bearing Clearance: .001"-.003"

Rod Journal Diameter: 1.9995"- 2.0005"

Rod Bearing Clearance: .0015"-.0025"

Rod End Play: .006"-.014" inches

Rod Bolt Tension: 50-55 Lbs. Ft.

Main Bearing Journal Diameter: 2.4785"-2.4795"

Main Bearing Clearance: .0005"-.003

Crankshaft End Play: .006"-.010"

Main Bolt Tension: 70 Lbs. Ft.

Capacities, Nash "600", Series 4740, 6 Cylinder

Cooling System:

Without Heater: 14 Quarts

With Heater: 15 Quarts

Fuel Tank: 20 Gallons;

Engine Oil Refill: 5 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 2-1/4 Pints Without Overdrive: 4-1/2 Pints With Overdrive

Grade of Oil: Summer 90, Winter 80

Rear Axle: 3 Pints

Grade of Oil: Summer 90H, Winter 90H

Capacities, Ambassador 6, Series 4760, 6 Cylinder

Cooling System:

Without Heater: 17 Quarts

With Heater: 18 Quarts

Fuel Tank: 20 Gallons;

Engine Oil Refill: 6 Quarts;

Grade of Oil: Above +32F 20;

Above +10F 20W;

Above -10F 10W

Manual Transmission: 4 Pints Without Overdrive; 6 Pints With Overdrive

Grade of Oil: Summer 90, Winter 80

Rear Axle: 4 Pints

Grade of Oil: Summer 90H, Winter 90H

Auto-Lite Distributor Specifications, Series 40:

Distributor #1GW-4184A

Rotation: Counter-Clockwise

Cam Angle: 39 Degrees

Breaker Point Opening: .020"

Condenser Capacity: .20-.25 Mfds

Breaker Arm Spring Tension: 17-20 Ounces

Centrifugal Advance Data:

Advance Starts: 2 Degrees @ 300 RPM

Full Advance: 11 Degrees @ 1,400 RPM

Vacuum Advance Data:

Advance Starts: 1 Degree @ 5" Vacuum

Full Advance: 7-1/2 Degrees @ 15" Vacuum

Auto-Lite Distributor Specifications, Series 60:

Distributor #1GS-4205B

Rotation: Clockwise

Cam Angle: 39 Degrees

Breaker Point Opening: .020"

Condenser Capacity: .20-.25 Mfds

Breaker Arm Spring Tension: 17-20 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 350 RPM

Full Advance: 14 Degrees @ 1,350 RPM

Vacuum Advance Data:

Advance Starts: 1 Degree @ 6-3/4" Vacuum

Full Advance: 6 Degrees @ 15" Vacuum

Auto-Lite Generator Specifications, All Series:

Generator #GDZ-4806A

Generator Output: 35 Amperes @ 2,000 RPM

Brush Spring Tension: 35-53 Ounces

Direction of Rotation: Clockwise

Field Current @ 5 Volts: 1.3 - 1.5 Amperes

Regulator # VRP-6001

Cutout Relay:

Voltage to Close Points: 6.5 Volts

Reverse Current to Open Points: 4 to 6 Amperes

Armature Air Gap: .031"

Voltage Regulator Setting: 7.3 Volts

Current Regulator Setting: 35 Amperes

Current & Voltage Armature Air Gap: .048"

Ground Polarity: Positive

Auto-Lite Starting Motor Specifications:

Part #MZ-4103

Rotation: Clockwise

Brush Spring Tension: 42 - 53 Ounces

No Load Test: 68 Amperes, 5.0 Volts @ 4,000 RPM

Lock Test: 280 Amperes, 2.0 Volts @ 4.4 Ft Lbs Torque

Carter Carburetor Specifications:

Carburetor Model: WA-1

Part #464S

Float Level: 3/8"

Idle Screw Setting: 1/2 to 1-1/2 Turns

Pump Adjustment Using Gauge T109-117S: 27

Metering Rod Gauge: T109-102

Anti-Percolator Adjustment: .020"

Fast Idle Adjustment: 5/8"

Unloader Adjustment: 31/64"

Choke Lockout Adjustment: 1/32"

Automatic Choke Setting: Index

Carburetor Model: WA-1

Part #611S

Float Level: 1/2"

Idle Screw Setting: 1-1/4 to 2-1/4 Turns

Pump Adjustment Using Gauge T109-117S: 25

Metering Rod Gauge: T109-102

Anti-Percolator Adjustment: .030"

Fast Idle Adjustment: 5/8"

Unloader Adjustment: 7/16"

Choke Lockout Adjustment: 1/32"

Automatic Choke Setting: 2 Lean

Fuel Pump Data:

Pump Type: W

Maximum Pressure: 4-1/2 PSI

Dash Gauge Manufacturers:

Gasoline: King-Sealey

Temperature: King-Sealey

Oil Pressure: King-Sealey

Ammeter: King-Sealey

Brake Specifications, Nash "600", Series 4740

Lining Material: Molded

Lining Dimensions/Wheel in Inches: 20-1/2"

Width: 1-3/4",

Thickness: 3/16"

Brake Shoe Clearance: .010"

Wheel Cylinder Bore:

Front: 1"

Rear: 7/8"

Master Cylinder Bore: 1"

Pedal Free Play: 3/8"

Brake Specifications, Ambassador, Series 4760

Lining Material: Molded

Lining Dimensions/Wheel in Inches: 22"

Width: 2",

Thickness: 3/16"

Brake Shoe Clearance: .015"

Wheel Cylinder Bore:

Front: 1-1/16"

Rear: 1"

Master Cylinder Bore: 1-1/8"

Pedal Free Play: 3/8"

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Wheel Alignment Specifications, Series 4740:

Caster: + 1/2 Degrees

Camber: + 1/2 Degrees

Toe-In: 1/8" to 3/16"

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 23-1/2 to 24 Degrees

Kingpin Inclination: 7-1/2 Degrees

Wheel Alignment Specifications, Series 4760:

Caster: - 1/4 Degrees

Camber: + 1/2 Degrees

Toe-In: 1/16" to 3/16"

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 23-1/2 to 24 Degrees

Kingpin Inclination: 4-1/2 Degrees

Rear Axle Specifications, All Series:

Ring Gear & Pinion Backlash: .005"-.007"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: Shims

Axle Shaft End Play: .002"-.004"

Beginning Engine Numbers:

Model 4740: K-146001

KE-1001, Beginning With Serial #K-153245

Model 4760: R-429201

RE-1001, Beginning With Serial #D-440923

Beginning Serial Numbers:

Model 4740: K-136001

Model 4760: R-429201

Popular Options

Radio & Antenna, Conditioned Air System, Vacuum Booster Pump, Turn Signals, Foam Rubber Cushiions, Oil Bath Air Cleaner, Oil Filter on "600," Crusing Gear on Ambassador

1947 Nash Historical Data

Total 1947 Nash Production was 101,000.

Copyright 1999, Custom Solutions & Services

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