Oldsmobile Diesel engine
| Oldsmobile Diesel | |
|---|---|
 | |
| Overview | |
| Manufacturer | Oldsmobile |
| Production | 1978–1985 |
| Layout | |
| Configuration | |
| Displacement |
|
| Cylinder bore | |
| Piston stroke |
|
| Cylinder block material | Cast iron |
| Cylinder head material | Cast iron |
| Valvetrain | Overhead valve |
| Compression ratio | |
| Combustion | |
| Fuel system | Indirect injection |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Chronology | |
| Successor | Detroit Diesel V8 engine |
Oldsmobile produced three versions of a diesel engine between 1978 to 1985: a 5.7 litre V8 1978-85, a 4.3 litre V8 in 1979, and a 4.3 litre V6 1982-1985. Both powered rear-wheel drive vehicles; the 4.3 litre was adapted to both transverse and inline front-wheel drive applications. Sales peaked in 1981 at approximately 310,000 units, which represented 60% of the total U.S. passenger vehicle diesel market. However, this success was short-lived due to decline in gas prices and difficulties resulting from large volumes of diesel fuel containing water or foreign particles being sold beginning with the diesel's introduction.[2]
The Oldsmobile diesel subsequently gained a reputation for unreliability and anemic performance that damaged the North American passenger diesel market for the next 30 years.[3][4]
In spite of this, the Oldsmobile diesels' strong blocks continue to see use in gasoline-powered race engines.[2][5]
LF9
The LF9 is a 350 cu in (5,737 cc) diesel V8 produced from 1978 to 1985. Earlier versions and those used in pickups produced 120 hp (89 kW) and 220 ft⋅lbf (300 N⋅m) torque, while later versions produced 105 hp (78 kW) and 205 ft⋅lbf (278 N⋅m) torque.
Applications:
- Buick – varying model years of Century, Electra, LeSabre, Regal, and Riviera
- Cadillac – varying model years of de Ville, Eldorado, Fleetwood Brougham, and Seville
- Chevrolet – varying model years of C10, Caprice, El Camino, Impala, Malibu, Monte Carlo, and Suburban
- GMC – varying model years of C1500, Caballero, and Suburban
- Oldsmobile – varying model years of Custom Cruiser, Cutlass/Cutlass Cruiser/Cutlass Salon, Cutlass Supreme/Cutlass Calais, Delta 88, Ninety-Eight, and Toronado
- Pontiac – varying model years of Bonneville, Catalina, Grand Prix, and Parisienne
- 1980–1982 Checker Marathon
LF7
The LF7 is a 260 cu in (4.3 L) V8 putting out 90 hp (67 kW) and 160 ft⋅lbf (220 N⋅m) torque.
Applications:
LT6
The LT6 is 4.3 liter V6 produced from 1982 to 1984 and installed in rear-wheel drive vehicles. Power was rated at 85 bhp (63 kW) @ 3600 rpm and 165 lb⋅ft (224 N⋅m) @ 1600 rpm.
Applications:
- 1982–1984 Buick Regal
- 1982–1983 Chevrolet Malibu
- 1982–1983 Chevrolet Monte Carlo
- 1982–1984 Oldsmobile Cutlass Supreme/Cutlass Calais
LT7
The LT7 is a transversely-mounted version of the 4.3 liter V6 produced from 1982 to 1985. Power was rated at 85 bhp (63 kW) @ 3600 rpm and 165 lb⋅ft (224 N⋅m) @ 1600 rpm.
Applications:
- 1982–1985 Buick Century
- 1982–1985 Chevrolet Celebrity
- 1982–1985 Oldsmobile Cutlass Ciera
- 1982–1985 Pontiac 6000
LS2
The LS2 is an inline version of the 4.3 liter V6 produced only in 1985 and installed in front wheel drive vehicles.
Applications:
- 1985 Buick Electra
- 1985 Cadillac de Ville
- 1985 Cadillac Fleetwood
- 1985 Oldsmobile Ninety-Eight
See also
References
- ^ a b c d e "Oldsmobile Diesel Technical Magazine". Retrieved 20 Dec 2013.
- ^ a b "The Worst Automobile Engines of All Time - Features- Popular Hot Rodding Magazine". Retrieved 26 Jan 2016.
- ^ "What's Hot". Retrieved 11 Jan 2014.
- ^ "TECHNICAL: DIESEL REDUX". Retrieved 11 Jan 2014.
- ^ "Ghosts of Diesels Past: Failed cars from 20 years ago still haunt GM, U.S. market - Autoweek". Retrieved 11 Jan 2014.