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1975 Cadillac Coupe deville

1975 Cadillac Coupe deville

For 1975, there were six models:

  • Calais: two-door hardtop coupe and four-door hardtop sedan
  • DeVille: two-door coupe and four-door sedan
  • Fleetwood Brougham: four-door sedan
  • Fleetwood Seventy-Five: four-door sedan, four-door limousine, and commercial chassis used in hearses and ambulances, etc.
  • Fleetwood Eldorado: two-door hardtop coupe and two-door convertible
  • Seville: four-door sedan

I. D. DATA

The serial number system and locations were unchanged.
The sixth symbol changed to a "5" for 1975.
Calais Coupes were numbered 6C47S5?100001 up
Calais Sedans were numbered 6C49S5?100001 up
DeVille Coupes were numbered 6D47S5?100001 up
DeVille Sedans were numbered 6D49S5?100001 up
Eldorado Coupes were numbered 6L47S59?100001 up
Eldorado Convertibles were numbered 6L47S59?100001 up
Broughams were numbered 6B69S5?100001 up
Seventy-Fives were numbered 6F3S5?100001 up
Sevilles were numbered 6S69R6Q?500001 up.

Sevilles sold in 1975 were considered 1976 models and all production of this model was quartered in the Detroit assembly plant, Code "Q"). Engine code "R" was now applied to the new 350 cubic inch Seville V-8.

SPECIFICATIONS

FLUID CAPACITIES

EngineV8 500cc (8.2L)
Crankcase4 or 5 qt
Crankcase with new filter5 or 6 qt
AutomaticTransmission after draining8 or 10 pt
Drive Axle5 or 4 pt
Fuel tank27.5 gal(US)
Cooling with heater21.3 or 23 qt
Cooling with A/C21.3 or 23 qt
Heavy duty Cooling25.8 qt

GASOLINE ENGINE TUNE-UP SPECS

Engine V.I.N CodeSS
Engine typeV8-500cc(8.2L)V8-500cc(8.2L)
Fuel delivery4 bblEFI
ManufacturerCadillacCadillac
Original Spark plugR45NSXR45NSX
Gap0.060 in0.060 in
DistributorElectronicElectronic
Ignition timing (BTDC)6°12°
Intake valve opens (BTDC)2121
Fuel pump pressure5¼ to 6½ psi39 min.
Idle speed600/400 rpm600 rpm

ALTERNATOR AND REGULATOR SPECS

Part #1100940110093711010151117144
Field current @ 12 V4.0 - 4.54.0 - 4.54.0 - 4.54.0 - 4.5
Output42 amps63 amps80 amps145 amps
Regulator Field-Relay: Air GapSolid StateSolid StateSolid StateSolid State
Regulator Field-Relay: Point Gap
Regulator Field-Relay: Volts to Close
Regulator Air Gap
Regulator Point Gap
Regulator Volts @ 75°13.8 - 14.813.5 - 14.413.8 - 14.813.5 - 14.4

BATTERY AND STARTER SPECS

EngineV8-500cc (8.2L)
Battery Ampere Hour Capacity74
Battery Volts12
Battery Terminal GroundedNeg.
Starter, Lock Test, AmpsNot Recommended
Starter, Lock Test, Volts
Starter, Lock Test, Torque
Starter, No-Lead Test, Amps65 - 95
Starter, No-Lead Test, Volts9
Starter, No-Lead Test, RPM7000 - 10500
Starter, Brush Spring Tension35 oz. min.

GENERAL ENGINE SPECS

Engine V.I.N CodeSS
Engine typeV8-500cc(8.2L)V8-500cc(8.2L)
ManufacturerCadillacCadillac
Fuel delivery4 bblEFI
Horsepower210@3600210@3600
Torque380@2000380@2000
Bore x Stoke4.300 x 4.3044.300 x 4.304
Compression Ratio8.25:18.25:1
Oil pressure35 psi35 psi

CRANKSHAFT SPECS

Engine typeV8-500cc(8.2L)
Main Brg Journal Dia.3.250
Main Brg Oil Clearance0.0001 - 0.0026
Shaft End-play0.002 - 0.012
Thrust on No.3

CONNECTING ROD SPECS

Engine typeV8-500cc(8.2L)
Journal Dia.2.5000
Oil Clearance0.0005 - 0.0028
Side Clearance0.008 - 0.020

PISTON AND RING SPECS

Engine typeV8-500cc(8.2L)
Piston-Bore Clearance0.0006 - 0.0010
Ring Side Clearance: Top Compression0.0017 - 0.0040
Ring Side Clearance: Bottom Compression0.0017 - 0.0040
Ring Side Clearance: Oil ControlNone (side sealing)
Ring Gap: Top Compression0.013 - 0.025
Ring Gap: Bottom Compression0.013 - 0.025
Ring Gap: Oil Control0.015 - 0.055

VALVE SPECS

Engine typeV8-500cc(8.2L)
Seat Angle45°
Face Angle44°
Spring Test Pressure160 lb @ 1.50 in.
Spring Installed Height115⁄16 in. (1.9375")
Stem-to-Guide Clearance: Intake0.0010 - 0.0027
Stem-to-Guide Clearance: Exhaust0.0010 - 0.0027
Stem Diameter: Intake0.3416
Stem Diameter: Exhaust0.3416

TORQUE SPECS

Engine typeV8-500cc(8.2L)
Cyl. Head Bolts115 ft. lb
Rod Brg Bolts40 ft. lb
Main Brg Bolts90 ft. lb
Crankshaft Damper or Pulley BoltPress fit
Flywheel to Crankshaft Bolts75 ft. lb
Intake Manifold30 ft. lb
Exhaust Manifold35 ft. lb

CARBURETOR SPECS

Carb ID7045230 (M4ME)7044530 (M4ME)
Float Level15/32 in15/32 in
Air Valve Spring7/16 turn1/2 turn
Pump Rod3/8 in3/8 in
Primary Vacuum Break0.160 in0.230 in
Secondary Vacuum Break0.130in 0.230 in
Choke Rod0.080 in0.080 in
Choke Unloader0.215 in0.215 in
Fast Idle Speed1250 rpm1250 rpm

WHEEL ALIGNMENT SPECS

Feature Eldorado Fleetwood 75 Full size (except Fleetwood 75)
Caster Range 1°N - 1°P 2°N - 0° 1°N - 1°P
Caster Pref. 0° 1°N 0°
Camber LH wheel Range 3/4°N - 3/4°P ¾°N - ¾°P 3/4°N - 3/4°P
Camber LH wheel Pref. 0° 0° 0°
Camber RH wheel Range 1°N - ½°P 1°N - ½°P 1°N - ½°P
Camber RH wheel Pref. ½°P ¼°N ¼°N
Toe-In 0" 1⁄8 in. 1⁄8 in.
Steering Axis Inclination11° 6° 6°

HISTORICAL NOTES

1975 Cadillac Notes

  • Dealer introductions took place September 19, 1974.
  • Model year production was 264,731 cars.
  • Lower axle ratios were used to improve fuel mileage except on limousines.
  • This is the first time prices on production models surpassed the price of 1957-1960 Eldorado Broughams.
  • Edward C. Kennard was general manager
  • Robert J. Templin was chief engineer
  • Wayne Kady was chief designer (Cadillac Studio)
  • F. T. Hopkins was general sales manager
  • Cadillac production figures
Calais8,300 (increased 1,417)
Sedan de Ville63,352 (increased 2,933)
Coupe de Ville110,218 (decreased 1,983)
Eldorado44,752 (increased 4,340)
Seville16,355 ()
Series 6018,755 (increased 505)
Series 752,999 (decreased 1,166)