1949 BUICK
Models:
Buick Special, Series 40, 8 Cylinder
Buick Super, Series 50, 8 Cylinder
Buick Roadmaster, Series 70, 8 Cylinder
Buick Special, Series 40, 8 Cylinder:
Body Data & Pricing:
4 Door Sedan, 6 Passenger, Model 41, Body #49-4409
Base Price: $1,861; Shipping Weight: 3,695 Pounds; Production Total: 5,940
2 Door Sedanette, 6 Passenger, Model 46, Body #49-4407
Base Price: $1,787; Shipping Weight: 3,625 Pounds; Production Total: 4,687
Buick Super, Series 50, 8 Cylinder
Body Data & Pricing:
4 Door Sedan, 6 Passenger, Model 51, Body #49-4569
Base Price: $2,157; Shipping Weight: 3,835 Pounds; Production Total: 136,423
2 Door Sedanette, 6 Passenger, Model 56S, Body #49-4507
Base Price: $2,059; Shipping Weight: 3,735 Pounds; Production Total: 66,260
2 Door Convertible Coupe, 6 Passenger, Model 56C, Body #49-4567
Base Price: $2,583; Shipping Weight: 3,985 Pounds; Production Total: 22,110
4 Door Station Wagon, 6 Passenger, Model 59, Body #(Ionia)
Base Price: $3,178; Shipping Weight: 4,100 Pounds; Production Total: 1,847
Buick Roadmaster, Series 70, 8 Cylinder
Body Data & Pricing:
4 Door Sedan, 6 Passenger, Model 71, Body #49-4769
Base Price: $2,735; Shipping Weight: 4,205 Pounds; Production Total: 55,242
2 Door Sedanette, 6 Passenger, Model 76S, Body #49-4707
Base Price: $2,618; Shipping Weight: 4,115 Pounds; Production Total: 18,537
2 Door Hardtop, 6 Passenger, Model 76R, Body #49-4737
Base Price: $3,203; Shipping Weight: 4,420 Pounds; Production Total: 4,343
2 Door Convertible Coupe, 6 Passenger, Model 76C, Body #49-4767
Base Price: $3,150; Shipping Weight: 4,370 Pounds; Production Total: 8,244
4 Door Station Wagon, 6 Passenger, Model 79, Body #(Ionia)
Base Price: $3,734; Shipping Weight: 4,490 Pounds; Production Total: 653
Major Specifications, Buick Special, Model 40:
Wheelbase: 121", Model 40
Engine Type: Overhead Valve In-Line 8 Cylinder
Engine Bore & Stroke: 3-3/32" X 4-1/8"
Engine Displacement: 248.0 Cu. In.
Compression Ratio: 6.30:1
Torque: 206 Ft. Lbs. @ 2,000 RPM
Taxable Horsepower: 30.63
Horsepower: 110 @ 3,600 RPM
Normal Oil Pressure: 35 PSI
Carburetor: Carter, Model 608 or Model 663; or Stromberg Model AAV-167, #380225
Rear Axle Ratio: Not Available
Tire Size: 6.50 X 16 Inches; Pressures: 26 Front & 26 Rear
Major Specifications, Buick Super, Series 50
Wheelbase: 121"
Engine Type: Overhead Valve In-Line 8 Cylinder
Engine Bore & Stroke: 3-3/32" X 4-1/8"
Engine Displacement: 248.0 Cu. In.
Compression Ratio:
With Manual Tansmission: 6.60:1
With Dynaflow Transmission: 6.90:1
Taxable Horsepower: 30.63
Horsepower:
With Manual Transmission: 115 @ 3,600 RPM
With Dynaflow Transmission: 120 @ 3,600 RPM
Torque:
With Manual Transmission: 212 Ft. Lbs. @ 2,000 RPM
With Dynaflow Transmission: 215 Ft. Lbs @ 2,000 RPM
Normal Oil Pressure: 35 PSI
Carburetor: Carter, Model 608 or Model 663; or Stromberg Model AAV-16, #380106
Rear Axle Ratio: Not Available
Tire Size: 7.60 X 15 Inches; Pressures: 24 Front & 24 Rear
Major Specifications, Buick Roadmaster, Model 70
Wheelbase: 126"
Engine Type: Overhead Valve In-Line 8 Cylinder
Engine Bore & Stroke: 3-7/16" X 4-5/16"
Engine Displacement: 320.2 Cu. In.
Compression Ratio: 6.90:1
Taxable Horsepower: 37.81
Horsepower: 150 @ 3,600 RPM
Torque: 280 Ft. Lbs. @ 2,000 RPM
Normal Oil Pressure: 35 PSI
Carburetor: Stromberg AAV-267, Number 382226 or Carter Model 609 or Model 664
Rear Axle Ratio: Not Available
Tire Size: 8.20 X 15 Inches; Pressures: 22 Front & 22 Rear
Capacities, Buick Special, Model 40:
Cooling System: 13 Quarts; 14 Quarts with Dynaflow Transmission
Fuel Tank: 19 Gallons
Engine Oil: 5-1/2 Quarts
Grade of Oil: +32 Degrees F & Above, 20
+10 Degrees F & Above, 20W
- 10 Degrees F & Above, 10W
Manual Transmission Capacity: 1-3/4 Pints
Grade of Oil: Summer, 90H; Winter, 90H
Dynaflow Transmission Capacity: 18 Pints
Grade of Oil: Dynaflow Oil
Rear Axle Capacity: 4 Pints
Grade of Oil: Summer, 90H; Winter, 90H
Capacities, Buick Super, Model 50
Cooling System: 13 Quarts; 14 Quarts with Dynaflow Transmission
Fuel Tank: 19 Gallons
Engine Oil: 5-1/2 Quarts
Grade of Oil: +32 Degrees F & Above, 20
+10 Degrees F & Above, 20W
- 10 Degrees F & Above, 10W
Manual Transmission Capacity: 1-3/4 Pints
Grade of Oil: Summer, 90H; Winter, 90H
Dynaflow Transmission Capacity: 18 Pints
Grade of Oil: Dynaflow Oil
Rear Axle Capacity: 4 Pints
Grade of Oil: Summer, 90H; Winter, 90H
Capacities, Buick Roadmaster, Model 70
Cooling System: 16-3/4 Quarts
Fuel Tank: 19 Gallons
Engine Oil: 7 Quarts
Grade of Oil: +32 Degrees F & Above, 20
+10 Degrees F & Above, 20W
- 10 Degrees F & Above, 10W
Transmission Capacity:
Dynaflow: 22 Pints
Grade of Oil: Dynaflow Transmission Oil
Rear Axle Capacity: 4 Pints
Grade of Oil: Summer, 90H; Winter, 90H
Tune-Up Data, Buick, Special, Super, & Roadmaster; Series 40, 50, & 70:
Spark Plug Gap: .025"
Spark Plug Type: AC 48, Champion UJ-18Y or J-18Y or equivalent
Ignition Point Gap: .015"
Cam Angle: 25 Degrees
Ignition Timing Mark & Location: "ADV" Mark on Flywheel
Firing Order: 1-6-2-5-8-3-7-4
Tappet Clearance, Hot:
Mechanical Lifters: Intake: .015" Exhaust: .015"
Hydralic Lifters: Intake: Zero; Exhaust: Zero (Series 70)
Cylinder Head Tension: 65-70 Ft Lbs
Engine Idle Speed:
Manual Transmission: 450 RPM
Dynaflow Transmission: 450 RPM
Compression Pressure @ Cranking Speed: 112 PSI
Valve Data, Buick Special, Series 40 & Super Series 50:
Tappet Clearance, Running Hot:
Intake: .015"; With Hydralic Lifters: Zero
Exhaust: .015"; With Hydrallic Lifters: Zero
Tappet Clearance for Timing:
Intake: .015"; With Hydralic Lifters: Zero
Exhaust: .015"; With Hydralic Lifters: Zero
Valve Timing:
Intake Valve Opens: 13 Degrees BTDC
Exhaust Valve Closes: 22 Degrees ATDC
Valve Seat Angle:
Intake: 45 Degrees
Exhaust: 45 Degrees
Minimum Valve Spring Pressure (New Spring):
Inner Spring: 51 Pounds @ 1-5/16"
Outer Spring: 77 Pounds @ 1-19/32"
Valve Stem Clearance:
Intake: .0015"-.0035"
Exhaust: .0021"-.0039"
Valve Data, Buick Roadmaster, Series 70
Tappet Clearance, Running Hot:
Hydralic Lifters: Intake: Zero Exhaust: Zero
Tappet Clearance for Timing:
Hydralic Lifters: Intake: Zero Exhaust: Zero
Valve Timing:
Intake Valve Opens: 14 Degrees BTDC
Exhaust Valve Closes: 25 Degrees ATDC
Valve Seat Angle:
Intake: 45 Degrees
Exhaust: 45 Degrees
Minimum Valve Spring Pressure (New Springs):
Inner Spring: 52 Pounds @ 1-5/16"
Outer Spring: 119 Pounds @ 1-19/32"
Valve Stem Clearance:
Intake: .0015:-.0035"
Exhaust: .0021"-.0039"
Piston & Ring Data, Buick Special, Series 40 & Super, Series 50:
Pistons Removed from Above
Piston Clearance (Minimum):
Top Land: .023"
Top of Skirt: .0021"
Fitting Pistons with Spring Scale:
Shim Thickness to Use: Should fall @ .0015" and hold @ .002"
Pounds Pull on Scale: Use Shim Thickness Data
Width of Ring End Gap (Minimum):
Compression: .010"
Oil Control: .010"
Clearance Between Ring & Grooves:
Compression: .0015"-.003"
Oil Control: .0015"-.003" Flex-Fit Oil Rings: .0015"-.0035"
Piston & Ring Data, Buick Roadmaster, Series 70
Piston Removed from Above
Piston Clearance (Minimum):
Top Land: .026"
Top of Skirt: .0023"
Fitting Pistons with Sring Scale:
Shim Thickness to Use: Should fall @ .0015" and hold @ .002"
Pounds Pull on Scale: Use Shim thickness Data
Width of Ring End Gap (Minimum):
Compression: .010"
Oil Control: .010"
Clearance Between Ring & Grooves:
Compression: .0015"-.003"
Oil Control: .0015"-.003" Flex-Fit Oil Rings: .0015"-.0035"
Engine Bearing Data, Buick Special, Series 40 & Super, Series 50:
Camshaft End Play: .004"-.008"
Camshaft Bearing Clearance: .0005"-.0035"
Connecting Rod Bearing Journal Diameter: 1.997"-1.999"
Connecting Rod Bearing Clearance: .0005"-.002"
Connecting Rod End Play: .005"-.010"
Connecting Rod Bolt Tension: 40-45 Ft Lb
Main Bearing Journal Diameter:
#1: 2.3105"-2.3115" #2: 2.3735"-2.3745" #3: 2.4355"-2.4365"
#4: 2.4985"-2.4995" #5: 2.5605"-2.5615"
Main Bearing Clearance: .0005"-.002"
Crankshaft End Play: .004:-.008"
Main Bolt Tension: 90-100 Ft Lbs
Engine Bearing Data, Buick Roadmaster, Series 70
Camshaft End Play: .004"-.008"
Camshaft Bearing Clearance: .0005"-.0035"
Connecting Rod Bearing Journal Diameter: 2.248"-2.249"
Connecting Rod Bearing Clearance: .0005"-.002"
Connecting Rod End Play: .005"-.010"
Connecting Rod Bolt Tension: 60-65 Ft Lbs
Main Bearing Journal Diameter:
#1: 2.5605"-2.5615" #2: 2.6235"-2.6245" #3: 2.6855"-2.6865"
#4: 2.7485"-2.7495" #5: 2.8105"-2.8115"
Main Bearing Clearance: .0005"-.002"
Crankshaft End Play: .004"-.008"
Main Bolt Tension: 90-100 Ft Lbs
Brake Data, Buick Special, Series 40, & Super, Series 50:
Lining Material: Primary Shoe, Woven; Secondary Shoe, Molded
Length of Lining Per Wheel: 23-1/16"
Width of Lining: 1-3/4"
Thickness of Lining: 3/16"
Brake Pedal Free Play: 1"
Brake Data, Buick Roadmaster, Series 70
Lining Material: Primary Shoe, Woven; Secondary Shoe, Molded
Length of Lining Per Wheel: 23-1/16"
Width of Lining: 2-1/4"
Thickness of Lining: 3/16"
Brake Pedal Free Play: 1"
Wheel Alignment Data, All Series:
Caster: +3/8 Degrees
Camber: +3/8 Degrees
Toe In: 1/32"
Kingpin Inclination: 4-1/4 Degrees
Rear Axle Data, All Series:
Ring Gear & Pinion Backlash: .008"-.012"
Drive Pinion Adjustment: Shims
Drive Pinion Bearing Adjustment: None
Axle Shaft End Play: .000"-.008"
Delco-Remy Distributor Specifications, Series 40:
Distributor # 1110801
Cam Angle: 25 Degrees
Point Opening: .015"
Condensor Capacity: .20-.25 Mfds
Breker Arm Spring Tension: 19-23 Ounces
Centrifugal Advance Data:
Advance Starts: 1 Degree @ 250 RPM
Full Advance: 13 Degrees @ 1,500 RPM
Vacuum Advance Data
Inches of Vacuum to Start Plunger Movement: 5-7
Inches of Vacuum for Full Plunger Travel: 10-13
Maximum Vacuum Advance: 5-1/2 Degrees
Delco-Remy Distributor Specifications, Series 50 & 70:
Distributor # 1110815
Cam Angle: 25 Degrees
Point Opening: .015"
Condensor Capacity: .20-.25 Mfds
Breker Arm Spring Tension: 19-23 Ounces
Centrifugal Advance Data:
Advance Starts: 1 Degree @ 250 RPM
Full Advance: 13 Degrees @ 1,500 RPM
Vacuum Advance Data
Inches of Vacuum to Start Plunger Movement: 5-7
Inches of Vacuum for Full Plunger Travel: 10-13
Maximum Vacuum Advance: 5-1/2 Degrees
Delco-Remy Generator Specifications, Series 40 & 50:
Generator # 1102679
Brush Spring Tension
Main: 25
Direction of Rotation: Clockwise
Field Current @ 6 Volts: 1.75-1.9 Amperes
Maximum Cold Output:
30 Amperes; 8.0 Volts @ 1,825 RPM
Maximum Output: Controlled by Current Regulator
Delco-Remy Generator Specifications, Series 50:
Generator # 1102709
Brush Spring Tension
Main: 25
Direction of Rotation: Clockwise
Field Current @ 6 Volts: 1.75-1.9 Amperes
Maximum Cold Output:
30 Amperes; 8.0 Volts @ 1,755 RPM
Maximum Output: Controlled by Current Regulator
Delco-Remy Generator Specifications, Series 70:
Generator # 1102708
Brush Spring Tension
Main: 25
Direction of Rotation: Clockwise
Field Current @ 6 Volts: 1.75-1.9 Amperes
Maximum Cold Output:
30 Amperes; 8.0 Volts @ 1,755 RPM
Maximum Output: Controlled by Current Regulator
Delco-Remy Regulator Specifications, Series 40:
Regulator Type: Voltage & Current
Regulator # 1118301
Ground Polarity: Negative
Voltage to Close Relay Points: 5.9-6.8 Volts
Maximum Operating Amperage: 40-46 Amperes
Maximum Operating Voltage (Hot): 7.0-7.7 Volts
Delco-Remy Regulator Specifications, Series 50 &70:
Regulator Type: Voltage & Current
Regulator # 1118357
Ground Polarity: Negative
Voltage to Close Relay Points: 5.9-6.8 Volts
Maximum Operating Amperage: 40-46 Amperes
Maximum Operating Voltage (Hot): 7.0-7.7 Volts
Delco-Remy Starting Motor Specifications, Series 40:
Starter # 1107149
Brush Spring Tension: 24-28 Ounces
No Load Test: 65 Amperes, 5.0 Volts @ 5,000 RPM
Lock Test: 525 Amperes, 3.37 Volts; Torque: 12 Ft Lbs
Delco-Remy Starting Motor Specifications, Series 50:
Starter # 1107078
Brush Spring Tension: 24-28 Ounces
No Load Test: 65 Amperes, 5.67 Volts @ 5,000 RPM
Lock Test: 525 Amperes, 3.4 Volts; Torque: 12 Ft Lbs
Delco-Remy Starting Motor Specifications, Series 70:
Starter # 1107953
Brush Spring Tension: 24-28 Ounces
No Load Test: 65 Amperes, 5.67 Volts @ 5,500 RPM
Lock Test: 600 Amperes, 3.0 Volts; Torque: 16 Ft Lbs
Stromberg Carburetor Adjustments, Series 40 & 50:
Carburetor Model: AAV-167
Carburetor Part # 380225
Code # 7-69
Repair Kit # RK-140
Fuel Level: Fuel should be at level of sight plug hole, engine idling
Throttle Position for Economizer Valve: Controlled by manifold vacuum
Throttle Valve Location for Idle: .022"
Throttle Valve Location for Vacuum Spark Control: .080"
Fast Idle Setting: 53
Choke Unloader Setting: 11/64"
Stromberg Carburetor Adjustments, Series 70:
Carburetor Model: AAV-267
Carburetor Part # 380226
Code # 7-70
Repair Kit # RK-141
Fuel Level: Fuel should be at level of sight plug hole, engine idling
Throttle Position for Economizer Valve: Controlled by manifold vacuum
Throttle Valve Location for Idle: .022"
Throttle Valve Location for Vacuum Spark Control: .055"
Fast Idle Setting: 53
Choke Unloader Setting: 11/64"
Carter Carburetor Specifications, Series 40 & 50:
Carburetor Model #WCD
Carburetor Part # 663S
Casting # 546
Repair Kit # 1391
Float Level: 5/32"
Idle Screw Setting, 3/4-1-1/4Turns to Open
Metering Rod Gauge: *
Pump Travel: 21/64"
Anit-Percolator Setting: None
Unloader Setting: 3/16"
Fast Idle Setting: .015"
Choke Lockout Adjustment: None
* With throttle valves seated, press down on vacumeter link until metering rods bottom in bowl casting. With rods held down, revolve metering rod arm until lip contacts vacumeter llink. Tighten metering rod arm set screw.
Carter Carburetor Specifications, Series 70:
Carburetor Model #WCD
Carburetor Part # 573S
Casting # 546
Repair Kit # 1392
Float Level: 5/32"
Idle Screw Setting, 3/4-1-1/4 Turns to Open
Metering Rod Gauge: *
Pump Travel: 21/64"
Anit-Percolator Setting: None
Unloader Setting: 3/16"
Fast Idle Setting: .018"
Choke Lockout Adjustment: None
* With throttle valves seated, press down on vacumeter link until metering rods bottom in bowl casting. With rods held down, revolve metering rod arm until lip contacts vacumeter llink. Tighten metering rod arm set screw.
Fuel Pump Data:
Pump Model: AJ
Maximum Pressure: 4 PSI
Dash Gauge Manufacturer:
Gasoline, Oil Pressure, Temperature, & Ammeter: AC
1949 Buick Beginning Engine Numbers:
Series 40: 4-5220972
Series 50: 5-5220972
Series 70: 7-5220972
1949 Buick Beginning Serial Numbers, All Series:
1-5020984, Flint Michigan
2-5030001, Southgate, California
3-5036001, Linden, New Jersey
4-5043001, Kansas City, Missouri
5-5050001, Wilmington, Delaware
6-5054001, Atlanta, Georgia
7-5057001, Framingham, Massachusetts
Popular Options, All Series:
Sonomatic Radio, Weather-Warden Heater & Defroster, Side View Mirror, EZI-Non Glare Rear View Mirror, Prismatic Inside Rear View Mirror, Vanity Visor Mirror, Spot Light, Auxillary Driving Lights, Multi-Purpose Trouble Light, Back-Up Lights, Tissue Dispenser, Rear Window Wiper, Polaroid Visor, Power Pak Fire Extinguisher/Tire Inflator, Breeze-Ease Draft Deflectors, Seat Covers, Dynaflow Transmission on Special & Super.
1949 Buick Paint Codes & Colors
Code Color PPG #
4901 Black 9200
4902 Sunmist Gray Poly 30623
4904 Verde Green 40140
4905 Elan Blue Poly 10557
4907 Sequoia Cream 80118
4908 Cumulus Gray 30503
4909 Regency Blue Poly 10417
4910 Allendale Green Poly 40568
4911 Gala Green Poly 40702
4912 Royal Maroon #2 Poly 50125
4913 Cirrus Green Poly 40711
4914 Old Ivory 80433
4916 Mariner Blue Poly 10669
1949 Buick Historical Data:
1949 Buick Model Year Production: 324,286, including those built for export.
Dynaflow Automatic Transmission was standard equipment on the Series 70, Roadmaster.
The Riviera 2 Door Hardtop Body Style was introduced on the Series 70, Roadmaster.
Promotional Model Cars Available:
Metal: 4 Door Sedan
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