Cadillac History 1989 - Amazing Classic Cars

Cadillac Models & History 1989

Cadillac for 1989 offered six car lines powered by V-8 engines. The Cimarron was not produced for 1989. New model highlights included longer and restyled de Ville and Fleetwood models, a more powerful Allanté and refinements in the Seville, Eldorado and Brougham. The Seville was now available in a limited edition Seville Touring Sedan (STS) form. This new model was equipped with a retuned European-feel suspension package for more precise steering control and a firmer feel of the road. The limited production Fleetwood Sixty Sedan had new front leather seats created by Italian designer Giorgelto Giugiaro that featured a split frame design with triple lumbar support. The Allanté received a substantial power boost to 200 horsepower that made it capable of 0-60 acceleration in less than 8.5 seconds. New comfort and convenience features available in 1989 included an express-down driver’s window, electrochromic inside rearview mirror, ElectriClear windshield and an oil life indicator.

Cadillac’s 4.5 liter digitally fuel-injected V-8 was the powerplant for the de Ville, Fleetwood, Seville, and Eldorado models. Cadillac claimed its cars, capable of 0-60 mph in less than 10 seconds, were the fastest domestically produced luxury cars available.

CHASSIS

Model	Wheelbase	Overall length	Height	Width	Front Tread	Rear Tread	Standard Tires
Coupe de Ville	110.8 in.	202.3 in	55.0 in.	72.5 in.	60.3 in.	59.8 in.	Michelin P205/70R15
Fleetwood coupe	110.8 in.	202.3 in	55.0 in.	72.5 in.	60.3 in.	59.8 in.	Michelin P205/70R15
Sedan de Ville	113.8 in.	205.3 in	55.0 in.	72.5 in.	60.3 in.	59.8 in.	Michelin P205/70R15
Fleetwood sedan	113.8 in.	205.3 in	55.0 in.	72.5 in.	60.3 in.	59.8 in.	Michelin P205/70R15
Sixty Special	113.8 in.	205.3 in	55.0 in.	72.5 in.	60.3 in.	59.8 in.	Michelin P205/70R15
Seville	108.0 in.	191.4 in	53.7 in.	71.7 in.	59.9 in.	59.9 in.	Michelin P205/70R15
Seville Touring	108.0 in.	191.4 in	53.7 in.	71.7 in.	59.9 in.	59.9 in.	Goodyear Eagle GT+4 P215/65R15
Eldorado	108.0 in.	190.8 in	53.7 in.	70.9 in.	59.9 in.	59.9 in.	Michelin P205/70R15
Allanté	99.4 in.	178.6 in	52.2 in.	73.5 in.	60.4 in	60.4 in.	Goodyear Eagle VL P225/55VR16
Brougham	121.5 in.	221 in	56.7 in.	76.5 in.	61.7 in.	60.7 in.	Michelin P225/75R15

SPECIFICATIONS

FLUID CAPACITIES

Engine	V8 273cc (4.1L)	V8 307cc (5.0L)
Crankcase	5 qt	4 qt
Crankcase with new filter	5 qt	5
AutomaticTransmission after draining	13 pt	10.6 pt
Drive Axle	NA	4.25 pt
Fuel tank	18.8 gal(US)	25.0 gal(US)
Cooling with heater	12.1 qt	15.2 qt
Cooling with A/C	12.1 qt	15.2 qt
Heavy duty Cooling	NA	NA

GASOLINE ENGINE TUNE-UP SPECS

Engine V.I.N Code	5	Y
Engine type	V8-273cc (4.5L)	V8-307cc (5.0L)
Fuel delivery	DFI	4 bbl
Manufacturer	Cadillac	Oldsmobile
Original Spark plug	R44LTS6	FR3LS6
Gap	0.060 in.	0.060 in.
Distributor	Electronic	Electronic
Ignition timing (BTDC)	See underhood sticker	See underhood sticker
Intake valve opens (BTDC)	See underhood sticker	See underhood sticker
Fuel pump pressure	12-14	5½-6½
Idle speed	See underhood sticker	See underhood sticker

ALTERNATOR AND REGULATOR SPECS

Part #	1101302	1101304	1101490
Field current @ 12 V	4-4.5	4-4.5	4-4.5
Output	94 amps	94 amp	120 amp
Regulator	Solid state	Solid state	Solid state
Volts @ 75°	13.8-14.8	13.8-14.8	13.8-14.8

GENERAL ENGINE SPECS

Engine V.I.N Code	5	Y
Engine type	V8-273cc(4.5L)	V8-307cc(5.0L)
Manufacturer	Cadillac	Oldsmobile
Fuel delivery	DFI	4 bbl
Horsepower	[email protected]	[email protected]
Torque	[email protected]	[email protected]
Bore x Stoke	3.622 x 3.307	3.800 x 3.385
Compression Ratio	9.1:1	7.9:1
Oil pressure	37 [email protected] RPM	30-45 [email protected] RPM

CRANKSHAFT SPECS

Engine type	V8-273cc(4.5L)	V8-307cc(5.0L)
Main Brg Journal Dia.	2.6776-2.6786	2.4988-2.4998 (No. 2, 3, 4, 5: 2.4985-2.4995)
Main Brg Oil Clearance	0.0016-0.0039 (No. 1: 0.0008-0.0031″)	0.0005-0.0021
Shaft End-play	0.010-0.070	0.0035-0.0135
Thrust on No.	3	3

CONNECTING ROD SPECS

Engine type	V8-273cc(4.5L)	V8-307cc(5.0L)
Journal Dia.	2.052-2.054	2.1238-2.1248
Oil Clearance	0.0005-0.0028	0.0004-0.0033
Side Clearance	0.008-0.020	0.006-0.020

PISTON AND RING SPECS

Engine type	V8-273cc(4.5L)	V8-307cc(5.0L)
Piston-Bore Clearance	0.0008	0.00075-0.00175
Ring Side Clearance: Top Compression	0.0016-0.0037	0.0018-0.0038
Ring Side Clearance: Bottom Compression	0.0016-0.0037	0.0018-0.0038
Ring Side Clearance: Oil Control	None (side sealing)	0.001-0.005
Ring Gap: Top Compression	0.015-0.024	0.009-0.019
Ring Gap: Bottom Compression	0.015-0.024	0.009-0.019
Ring Gap: Oil Control	0.010-0.050	0.015-0.055

VALVE SPECS

Engine type	V8-273cc(4.5L)	V8-307cc(5.0L)
Seat Angle	45°	45°(exhaust 31°)
Face Angle	44°	44°(exhaust 30°)
Spring Test Pressure	intake: [email protected]; exhaust: [email protected]	187 lb @ 1.27
Stem-to-Guide Clearance: Intake	0.0010-0.0030	0.0010-0.0027
Stem-to-Guide Clearance: Exhaust	0.0010-0.0030	0.0015-0.0032
Stem Diameter: Intake	0.3410-0.3420	0.3425-0.3437
Stem Diameter: Exhaust	0.3410-0.3420	0.3420-0.3427

TORQUE SPECS

Engine type	V8-273cc(4.1L)	V8-307cc(5.0L)
Cyl. Head Bolts	90 ft.lb	130 ft. lb
Rod Brg Bolts	22 ft.lb	18 ft. lb (Plus rotate 70°)
Main Brg Bolts	85 ft.lb	80 ft. lb (Rear main: 120)
Crankshaft Damper or Pulley Bolt	Press fit	200-310 ft. lb
Flywheel to Crankshaft Bolts	70 ft.lb	60 ft. lb
Intake Manifold		40 ft. lb
Exhaust Manifold	18 ft.lb	25 ft. lb

CARBURETOR SPECS

Carb ID	17086008 (E4MC)	17086008 (E4MC)
Float Level	¹¹⁄₃₂ in.	14/32 in
Air Valve Spring	1/2 turn	1/2 turn
Pump Rod	fixed	fixed
Primary Vacuum Break	0.142 in/25°	0.142 in/25°
Secondary Vacuum Break	0.278 in/43°	0.278 in/43°
Choke Rod	14°	14°
Choke Unloader	0.220 in/35°	0.220 in/35°
Fast Idle Speed	See underhood decal

WHEEL ALIGNMENT SPECS

Feature	Eldorado	Full size	Seville
Caster Range	1-5/16°P to 3-5/16°P	2°P-4°P	1½°P-3½°P
Caster Pref.	2-5/16°P	3°P	2½°P
Camber LH wheel Range	13/16°N to 13/16°P	½°N to ½°P	½°N to ½°P
Camber LH wheel Pref.	0°	0°	0°
Camber RH wheel Range	13/16°N to 13/16°P	½°N to ½°P	½°N to ½°P
Camber RH wheel Pref.	0°	0°	0°
Toe-In	3/32 in to 3/32 out	3/32 in to 3/32 out	3/32 in to 3/32 out
Steering Axis Inclination	—	10-19/32	—

HISTORICAL NOTES

1989 Cadillac Notes

Cadillac had 1,605 dealers at the start of the 1989 calendar year.
Its general manager was John D. Grettenberger.
Compared to the 1988 model year, Cadillac increased its market share from 2.52 percent to 2.70 percent.
Sales increased slightly from 266,548 to 266,899.

1989 Automotive Notes