Checker Marathon | |
---|---|
Overview | |
Manufacturer | Checker Motors Corporation |
Production | 1960–1982 |
Assembly | Kalamazoo, Michigan |
Body and chassis | |
Class | Mid-size car |
Body style | 4-door sedan 5-door station wagon |
Layout | FR layout |
Related | Checker Superba Checker Aerobus |
Powertrain | |
Engine | |
Transmission | |
Dimensions | |
Wheelbase | 120 in (3,048 mm) 129 in (3,277 mm) (limousine) |
The Checker Marathon is an automobile produced by the Checker Motors Corporation of Kalamazoo, Michigan, between 1961 and 1982. It was marketed as a passenger car for consumers, as opposed to the similar Taxi, which was aimed at fleet buyers.
Marathons were produced in both four-door sedan and four-door station wagon forms, and the rarer six-door 9-seater and eight-door, 12-seater "Aerobus" sedans and wagons.
The Marathon was introduced in September 1960 for the 1961 model year, alongside, and later superseding, the Checker Superba Custom and differing from the Superba with its better interior appointments. Originally, it retained the Superba's A10 body code, whereas A9 was the code used for taxis. The exterior of the Marathon had a full-width egg-crate grille, differing from the Superba's narrower grille and inboard parking lights.
After a minor facelift for 1963, chassis codes changed to A11 for taxis and A12 for passenger versions. [1] Also in 1963, the Marathon Town Custom, a limousine version on a longer (129 versus 120 in) wheelbase appeared. This version, which seated eight, received the A19E chassis code. [2] A few years later, this was changed to A12E.
Checker did not have a nationwide dealer network and sold most of its production for fleet service. [3]
With the exception of United States government-mandated 5 mph bumpers in 1974 and ongoing mechanical changes, the Marathon remained virtually unchanged during its 21-year production run. However, Checker did comply with all safety and emissions requirements while in production. Notably, the Marathon's front suspension A-frames interchange with a 1956 Ford.
Some of these changes help in identifying the year of a Checker, and included:
The engines used were originally Continental-built L-head inline-sixes (OHV units for the wagons), but these were exchanged for Chevrolet sixes and small-block V8s for the 1965 model year. [4] These continued to change as Chevrolet introduced modifications, peaking with the 1969 L-48 350 V8 which produced 300 hp (224 kW) (gross). [5] In 1969, a Perkins 4.236, 3.9-liter (236 in3) naturally aspirated diesel engine was available as an option for all models, but for only one year. By 1973, power for the 350 had decreased to 145 hp (108 kW) and in 1975 catalytic converters were introduced. For 1980, the engine lineup was changed entirely, with a 3.8-litre V6 replacing the old inline unit, and a smaller 267 ci (4.4 L) standard V8. The big news was the Oldsmobile LF9 engine, a 350 cu in (5.74 L) diesel V8. [6]
Six-cylinder engines | ||||||
---|---|---|---|---|---|---|
Model Years | Layout | Size | Fuel system | Power | Origin | Notes |
1961–1964 | L-head I6 | 226 cu in (3,707 cc) | single carb | 80 hp (60 kW) at 3,100 rpm | Continental | Sedans only until 1963 |
1961–1962 | OHV I6 | 226 cu in (3,707 cc) | single carb | 122 hp (91 kW) at 4,000 rpm | Continental | Station Wagon only |
1963–1964 | OHV I6 | 226 cu in (3,707 cc) | 2-bbl carb | 141 hp (105 kW) at 4,400 rpm | Continental | $57 option |
1965–1968 | OHV I6 | 230 cu in (3,769 cc) | single carb | 140 hp (104 kW) at 4,400 rpm | Chevrolet | base |
1969–1970 | OHV I6 | 250 cu in (4,095 cc) | 2-bbl carb | 155 hp (116 kW) at 4,200 rpm | Chevrolet | base |
1971–1972 | 145 hp (108 kW) at 4,200 rpm | 110 hp SAE net | ||||
1973–1975 | 100 hp (75 kW) at 3,600 rpm | low-comp, EGR | ||||
1976 | single carb | 105 hp (78 kW) at 3,800 rpm | 8.2:1 | |||
1977–1979 | 110 hp (82 kW) at 3,800 rpm | 8.3:1 | ||||
1980 | OHV V6 | 229 cu in (3,751 cc) | 2-bbl carb | 115 hp (86 kW) at 4,000 rpm | Chevrolet | |
1981–1982 | 110 hp (82 kW) at 4,200 rpm | LC3 | ||||
V8 engines | ||||||
1965–1967 | OHV V8 | 283 cu in (4,638 cc) | 2-bbl carb | 195 hp (145 kW) at 4,800 rpm | Chevrolet | |
1966–1968 | OHV V8 | 327 cu in (5,354 cc) | 4-bbl carb | 250 hp (186 kW) at 4,400 rpm | Chevrolet | 10.5:1 |
1969 | 235 hp (175 kW) at 4,800 rpm | 9.0:1 | ||||
1968 | OHV V8 | 307 cu in (5,025 cc) | 2-bbl carb | 200 hp (149 kW) at 4,600 rpm | Chevrolet | |
1969 | OHV V8 | 350 cu in (5,733 cc) | 4-bbl carb | 300 hp (224 kW) at 4,800 rpm | Chevrolet | 10.25:1 |
1970 | 250 hp (186 kW) at 4,500 rpm | 9.0:1 | ||||
1971–1972 | 245 hp (183 kW) at 4,800 rpm | 9.0:1, 165 hp SAE net | ||||
1973–1976 | 2-bbl carb | 145 hp (108 kW) at 4,000 rpm 145 hp (108 kW) at 3,800 rpm | 8.5:1, EGR catalyzed from 1975 | |||
1977 | 4-bbl carb | 170 hp (127 kW) at 3,800 rpm | 8.5:1 | |||
1978–1979 | 160 hp (119 kW) at 3,800 rpm | 8.2:1 | ||||
1977–1979 | OHV V8 | 305 cu in (4,999 cc) | 2-bbl carb | 145 hp (108 kW) at 3,800 rpm | Chevrolet | 8.5:1, 8.4:1 after 1978 |
1980 | 155 hp (116 kW) at 4,000 rpm | 8.6:1 | ||||
1981 | 150 hp (112 kW) at 3,800 rpm | 8.6:1, higher torque (LG4) | ||||
1980 | OHV V8 | 268 cu in (4,390 cc) | 2-bbl carb | 120 hp (89 kW) at 3,600 rpm | Chevrolet | |
1981–1982 | 115 hp (86 kW) at 4,000 rpm | L39, electronic feedback carb | ||||
1980 | OHV V8 | 350 cu in (5,737 cc) | diesel | 125 hp (93 kW) at 3,600 rpm | Oldsmobile | |
1981–1982 | 105 hp (78 kW) at 3,200 rpm | improved "DX" version (LF9) | ||||
: SAE gross figures, others are SAE net |
The final Marathon was manufactured in 1982, when Checker exited the automobile manufacturing business. In 1983 Checker started a remanufacturing operation at the Kalamazoo Cab Services division. Checker continued remanufacturing cabs as late as 1997. The company continued operations for an additional 27 years producing body stampings for General Motors, Ford, and Chrysler, until January 2009, when it entered bankruptcy liquidation as a result of the downturn in the USA auto industry. [7]
For decades, Checker was the taxicab of choice for New York City and many other American cities. The size of the car (seating many passengers), the robust construction, the lack of yearly changes to the styling (especially the 1958 and later models, simplifying parts management), and the bolt-on rear quarter panels all contributed to the Marathon's ubiquity on the streets of Manhattan.
The last New York City Checker cab retired in 1999, operated by Earl Johnson from 1978 onwards. The Marathon covered nearly one million miles and had three engine replacements over the years. [8] [9]
Most films set in New York City in the 1960s, 1970s, and 1980s will show a Checker Marathon. Many movies set in the 1950s and 1960s use Checker cabs built in the 1970s and early 1980s, since the bodies were virtually the same, and due to the lack of usable early specimens. Also, in works depicting the Soviet Union or East Bloc countries, such as the film Gorky Park [ citation needed ] and the original Mission: Impossible [10] television series, Checker Marathons were used to depict Soviet-made GAZ-13 Chaika automobiles.
Apart from taxicab use, Marathons were also bought by police departments, most notably in Kalamazoo, where Checker had its factory. [11]
In the late 1960s and into the early 1970s, some black SCV-plated (Stato Città del Vaticano - Vatican City) A12 Marathons were used to accommodate Pope Paul VI's entourage in motorcades.
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