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Front-wheel drive now became the rule at Cadillac, as in nearly all other makes. Two grand old names, DeVille and Fleetwood, made the switch this year. All Cadillacs except the subcompact Cimarron (and carryover rear-drive Brougham) now carried a transverse-mounted, fuel-injected 4.1 liter V-8 engine with die-cast aluminum-block. Two safety improvements arrived this year: anti-lacerative windshield glass (with inner layer of two-part plastic) on Seville's Elegante, plus a high-mount stop lamp on all DeVilles and Fleetwoods. That stop lamp would become required on all cars for 1986.

V.I.N. NUMBERS

  • Cadillacs again had a 17-symbol Vehicle Identification Number (VIN), stamped on a metal tag attached to the upper left surface of the cowl, visible through the windshield. Coding changed to reflect the new front-drive models.
  • The first character is a "1" to indicate the manufacturing country (U.S.A.)
  • The second character is a "G" for General Motors
  • The third is a "6" for Cadillac Division
  • Character four is the car line (GM body):
    • "J" = Cimarron
    • "K" = Seville
    • "C" = Deville/Fleetwood
    • "D" = Brougham
    • "E" = Eldorado
  • Character five indicates series:
    • "G" = Cimarron
    • "S" = Seville
    • "D" = DeVille
    • "B" = Fleetwood
    • "H" = Fleetwood limousine
    • "W" = Fleetwood Brougham (rear drive)
    • "L" = Eldorado
  • Digits six and seven indicate body type:
    • "47" = 2-dr. coupe
    • "69" = 4-dr. sedan
    • "23" = eight passenger limousine
    • "33" = formal limousine
    • "57" = Eldorado coupe
    • "67" = Eldorado convertible
  • Next is the engine code:
    • "P" = L4-121 TBI
    • "W" = V6-173 FI
    • "8" = V8-249 DFI
    • "T" = V6-262 diesel
    • "N" = V8-350 diesel
  • The next symbol is a check digit.
  • Symbol ten indicates model year ("F" = 1985)
  • Next is a code for assembly plant:
    • "9" = Detroit
    • "E" = Linden, NJ
    • "J" = Janesville, WI.
  • Finally comes a six-digit production sequence number
    • starting with 000001 for Detroit built cars
    • 400001 for Janesville
    • 600001 for Linden (E-body)
    • 800001 for Linden (K-body)
  • An identifying number is also on the engine, and a set of codes on a body number plate.

SPECIFICATIONS

FLUID CAPACITIES

EngineV8 250cc (4.1L)V8 350cc (5.7L) Diesel
Crankcase4 qt6 qt
Crankcase with new filter5 qt7
AutomaticTransmission after draining10 pt10 pt
Drive Axle3.5 or 3.2 pt3.5 or 3.2
Fuel tank24.5 or 20.3 gal(US)26 or 22.8 gal(US)
Cooling with heater11 qt23.7 or 18.4 qt
Cooling with A/C11 qt23.7 or 18.4 qt
Heavy duty CoolingNANA

GASOLINE ENGINE TUNE-UP SPECS

Engine V.I.N Code8
Engine typeV8-250cc (4.1L)
Fuel deliveryDFI
ManufacturerCadillac
Original Spark plugR42CLTS6
Gap0.060 in.
DistributorElectronic
Ignition timing (BTDC)See underhood sticker
Intake valve opens (BTDC)See underhood sticker
Fuel pump pressure12 - 14
Idle speedSee underhood sticker

ALTERNATOR AND REGULATOR SPECS

Part #11029211101040110104611010501101091
Field current @ 12 V4 - 4.54 - 4.54 - 4.54 - 4.54 - 4.5
Output63 amps70 amps80 amps100 amps100 amps
RegulatorSolid stateSolid stateSolid stateSolid stateSolid state
Volts @ 75°13.8 - 14.813.8 - 14.813.8 - 14.813.8 - 14.813.8 - 14.8

BATTERY AND STARTER SPECS

EngineV8-250cc (4.1L)V8-350cc (5.7L)Diesel
Battery Ampere Hour Capacity540 amps cold cranking power @ 0°F
Battery Volts1212
Battery Terminal GroundedNeg.Neg.
Starter, Lock Test, AmpsNot Recommended
Starter, Lock Test, Volts
Starter, Lock Test, Torque
Starter, No-Lead Test, Amps65 - 9540 - 140
Starter, No-Lead Test, Volts99
Starter, No-Lead Test, RPM7000 - 105008000 - 13000
Starter, Brush Spring Tension35 oz. min.35 oz. min.

GENERAL ENGINE SPECS

Engine V.I.N Code8N
Engine typeV8-250cc(4.1L)V8-350cc(5.7L)
ManufacturerCadillacOldsmobile
Fuel deliveryDFIDiesel
Horsepower135@4200105@3200
Torque200@2200200@1600
Bore x Stoke3.465 x 3.3074.057 x 3.385
Compression Ratio8.5:1 (9:1 with Swirl Cylinder Heads)
Oil pressure30 psi40 psi

CRANKSHAFT SPECS

Engine typeV8-250cc(4.1L)V8-350cc(5.7L) Diesel
Main Brg Journal Dia.2.6402.9993 - 3.0003
Main Brg Oil Clearance0.0004 - 0.00270.0005 - 0.0021 (No. 5: 0.0015 - 0.0031)
Shaft End-play0.001 - 0.0070.004 - 0.014
Thrust on No.33

CONNECTING ROD SPECS

Engine typeV8-250cc(4.1L)V8-350cc(5.7L) Diesel
Journal Dia.2.052 - 2.0542.1238 - 2.1248
Oil Clearance0.0005 - 0.00280.0005 - 0.0026
Side Clearance0.008 - 0.0200.006 - 0.020

PISTON AND RING SPECS

Engine typeV8-250cc(4.1L)V8-350cc(5.7L) Diesel
Piston-Bore Clearance0.00080.0035 - 0.0045
Ring Side Clearance: Top Compression0.0016 - 0.00370.005 - 0.007
Ring Side Clearance: Bottom Compression0.0016 - 0.00370.003 - 0.005
Ring Side Clearance: Oil ControlNone (side sealing)0.001 - 0.005
Ring Gap: Top Compression0.015 - 0.0250.019 - 0.027
Ring Gap: Bottom Compression0.015 - 0.0250.013 - 0.021
Ring Gap: Oil Control0.010 - 0.0500.015 - 0.055

VALVE SPECS

Engine typeV8-250cc(4.1L)V8-350cc(5.7L) Diesel
Seat Angle45°45°(intake); 31° (exhaust)
Face Angle44°44°(intake); 30° (exhaust)
Spring Test Pressure167 lb @ 1.34"210 lb @ 1.22"
Spring Installed Height1-43/64"1-43/64"
Stem-to-Guide Clearance: Intake0.0010 - 0.00300.0010 - 0.0027
Stem-to-Guide Clearance: Exhaust0.0010 - 0.00300.0015 - 0.0032
Stem Diameter: Intake0.3413 - 0.34200.3425 - 0.3432
Stem Diameter: Exhaust0.3411 - 0.34180.3420 - 0.3427

TORQUE SPECS

Engine typeV8-250cc(4.1L)V8-350cc(5.7L) Diesel
Cyl. Head Bolts90 ft.lb130 ft. lb
Rod Brg Bolts20 ft.lb42 ft. lb
Main Brg Bolts85 ft.lb120 ft. lb
Crankshaft Damper or Pulley BoltPress fit200 - 310 ft. lb
Flywheel to Crankshaft Bolts20 ft.lb60 ft. lb
Intake Manifold18 - 22 ft.lb40 ft. lb
Exhaust Manifold20 ft.lb25 ft. lb

CARBURETOR SPECS

Carb ID7056232 (M4ME)7056230 (M4ME)7056530 (M4ME)
Float Level13/32 in13/32 in7/16 in
Air Valve Spring3/8 turn3/8 turn3/8 turn
Pump Rod3/8 in3/8 in9/32 in
Primary Vacuum Break0.160 in0.160 in0.160 in
Secondary Vacuum Break0.160in 0.160in0.160 in
Choke Rod0.080 in0.080 in0.080 in
Choke Unloader0.230 in0.230 in0.230 in
Fast Idle Speed1400 rpm1400 rpm1400 rpm

WHEEL ALIGNMENT SPECS

Feature Eldorado Full size Seville
Caster Range 2°P - 2½°P 3½°P - 4½°P 2°P - 2½°P
Caster Pref. 2°P 4°P 2°P
Camber LH wheel Range 0° to ½°P 3/32°P to 57/64°P 0° to ½°P
Camber LH wheel Pref. 0° ½° 0°
Camber RH wheel Range 0° to ½°P 3/32°P to 57/64°P 0° to ½°P
Camber RH wheel Pref. 0° ½° 0°
Toe-In 0 to ½"P 1⁄8 in. 0 to ½P
Steering Axis Inclination11° 10-19/32° 11°

HISTORICAL NOTES

1985 Cadillac Notes

  • Fleetwood and DeVille were introduced April 5, 1984; Eldorado and Seville, October 2, 1984; Cimarron, November 8. 1984.
  • John O. Grettenberger was general manager
  • Edward H. Mertz was chief engineer for part of the year
  • Warren D. Hirschfield became chief engineer
  • Wayne Kady was chief designer (Cadillac Studio)
  • L. B. Pryor was general sales manager
  • Model year production: 394,840 (including 45,330 early '85 front-drive DeVille/Fleetwoods).
  • That total included 11,968 V-6 engines and 1,088 diesels.
  • Calendar year production: 322,765.
  • Calendar year sales by U.S. dealers: 298,762 for a 3.6 percent market share.
  • Model year sales by U.S. dealers: 310,942 (not including 46,356 front-drive DeVille/Fleetwoods sold as early 1985s). The delayed arrival of the new front-drive DeVille/Fleetwood was due to shortages of the Type 440 four-speed automatic transaxle, produced at GM's Hydra-matic Division.
  • Production had been delayed for six months.
  • For that reason, both rear-drive and front-drive DeVilles were offered to the public at the same time for a while during 1984.
  • A strike at GM of Canada affected supplies to over 30 General Motors plants in the U.S., including Cadillac's.
  • Cadillac production figures
Cimarron19,890 (decreased 2,008)
Fleetwood/de Ville series231,706 (increased 40,196)
Eldorado76,401 (decreased 1,405)
Seville39,755 (decreased 242)
Series 75405 (decreased 1,434)