DKW Junior (1959-1965)
DKW F11 / DKW F12 | |
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Overview | |
Manufacturer | Auto Union AG |
Production | 1959–1963 (Junior) 1963–1965 (F11 / F12) |
Body and chassis | |
Body style | 2-door saloon 2-door cabriolet |
Layout | FF layout |
Powertrain | |
Engine | 741 cc two-stroke straight-3 796 cc two-stroke straight-3 889 cc two-stroke straight-3 |
Transmission | 4-speed manual |
Dimensions | |
Wheelbase | 2,175 mm (85.6 in) Junior 2,250 mm (89 in)F11/F12 |
Length | 3,968 mm (156.2 in) |
Curb weight | 700 kg (1,500 lb)- 770 kg (1,700 lb) (empty) |
The car was known for its two-stroke engine. A number of European auto-makers produced two-stroke powered cars in the 1950s, but by the time the DKW Junior came along, the market was beginning to resist two-stroke powered cars as the industry increasingly standardised on four-stroke four-cylinder units which accordingly were becoming cheaper to produce. Two-stroke-engined cars were perceived by some as rough and noisy by comparison.
PERFORMANCE: 796 CC
- max speed in 1st gear: 23.6 mph, 38 km/h
- max speed in 2nd gear: 38.5 mph, 62 km/h
- max speed in 3rd gear: 55.9 mph, 90 km/h
- max speed in 4th gear: 74.5 mph, 120 km/h
- power-weight ratio: 39.2 lb/hp,
- acceleration: O-50mph 21.1 sec
The DKW line-up
In terms of its size and pricing, the DKW Junior slotted into the range just below the Auto Union 1000, which itself underwent an upgrade and a name change (from DKW to Auto Union) in 1957. The Junior was therefore from its introduction until August 1963 the only DKW branded car.
The body
The Auto Union 1000 had a form that closely followed that of a prototype first presented in 1938. In contrast, the smaller Junior had an uncompromisingly modern ponton, three-box design, filled out to the corners and featuring tail fins which were just beginning to appear on one or two of Europe’s more fashionable designs at this time.
Despite its modern shape, the body sat on a separate chassis.
Chronology
The DKW Junior prototype exhibited in 1957 featured a two-cylinder 660 cc two-stroke engine reminiscent of the two-stroke engine last seen in the DKW F89 Meisterklasse phased out in 1953.
A new plant was constructed at the company's Ingolstadt location for production of the car (DKWs having been assembled since the war till now at Düsseldorf), and by the time the Junior went into production, the prototype’s engine had been replaced by a three-cylinder two-stroke unit of 741 cc for which an output of 34 bhp (25 kW) was claimed. The four speed manual transmission was controlled via a cable linkage using a column mounted gear lever.
In 1961 the DKW Junior retailed for 4790 Marks. It offered more luggage space and a wider cabin than the market leading Volkswagen Beetle, and customers willing to pay an extra 160 Marks for the optional heater had the advantage in winter of a car that warmed up much more rapidly than the Volkswagen with its air-cooled power unit.
It is not clear whether the DKW Junior de Luxe, introduced in 1961, was intended to replace or to complement the original Junior which, in any case, was withdrawn in 1962. The Junior de Luxe had its cylinders bored out: total displacement was now 796 cc. Claimed power output was unchanged but the torque was marginally increased and the wheel size grew from 12 to 13 inches. Claimed maximum speed increased from 114 km/h (71 mph) to 116 km/h (72 mph).
In January 1963 the Junior De Luxe was replaced by the DKW F12. Outwardly there was little change, but the C pillar became more angular and the engine was enlarged to 889 cc which was reflected by a claimed increase in output to 40 bhp (29 kW). Apart from the engines, the big news from the F12 involved the brakes: the F12 was the first car in this class to be equipped with front disc brakes.
In August the Junior’s 796 cc engine reappeared in the DKW F11 which was in effect a reduced specification F12.
The DKW F12 roadster which appeared in 1964 extracted 45 bhp (33 kW) from its 889 cc three-cylinder engine, and this more powerful unit became available in the F12 saloon for a few months from February 1965.
OPTIONAL ACCESSORIES: Saxomat automatic clutch
The end
Early in the summer of 1965 Volkswagen acquired the Auto Union business from Daimler Benz: production of the two-stroke DKWs was almost immediately terminated. In the market place the DKWs had been facing an increasing struggle to compete with similarly sized more powerful four-stroke-engined offerings from Volkswagen and, more recently, Opel. By the end of 1965 the plant formerly controlled by Auto Union was building Audi badged cars, with four-cylinder four-stroke engines designed, before the change of ownership, in collaboration with Mercedes Benz.
Related
Technical
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DKW Junior Specification and Technical details (1959-1965)
ENGINE:
ENGINE CAPACITY: 48.68 cu in, 796 cu cm;
FUEL CONSUMPTION: 38.6 m/imp gal, 32.2 m/US gal, 7.3 Ix 100 km;
SEATS: 4;MAX SPEED: 74.5 mph, 120 km/h;
PRICE: 5,300 marks.
ENGINE:front, 4 stroke
cylinders. 3, vertical, in line
bore and stroke. 2.78 x 2.68 in, 70.5 x 68 mm
engine capacity: 48.68 cu in, 796 cu cm
compression ratio: 6.9-7.25 : 1
max power (SAE): 39 hp at 4000 rpm
max torque (DIN): 52 1b ft, 7.25 kgm at 2500 rpm
max number of engine rpm: 4000
specific power: 49 hp/l
cylinder block: cast iron
cylinder head; light allo
crankshaft bearings; 4 on ball bearings
luhrication: mixture 1.40
carburation: petrol-oil mixer, 1 Solex 40 ICB downdraft carburettor
fuel féed: mechanical pump
cooling system: water; cooling system capacity: 6.4imp qt, 7.7 US qt. 7.25 1.
TRANSMISSION:
driving wheels: front
clutch: single dry plate
gear box gears: 4 + reverse
ratios: (1st) 3.75, (2nd) 2.23, (3rd) 1.41, (4th) 0.94, (Rev) 3.37
gear lever location: steering columm
final drive: spiral bevel; ratio: 4.125 : 1.
CHASSIS:
box-type frame
front suspension: independent, wishbones, torsion bars, telescopic dampers
rear süspension: rigid axle, trailing radius arms, transverse torsion bars, telescopic dampers.
STEERING:
rack-and-pinion; turns of steering wheel lock to lock: 2.25.
BRAKES:
drum, 2 front leading shoes; braking surface: total 88.66 sq in.
ELECTRICAL EQUIPMENT:
voltage: 6 V
battery: 56 Ah
dynamo: 160 W
ignition distributor: Bosch, 3-coil
DIMENSIONS AND WEIGHT:
wheel base: 85.63 in, 2175 mm
front track: 46.46 in,
overall width: 62.2 in, 1580 mm
overall height: 56.69 in, 1440 mm
Service
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DKW Junior 796 cc Service instruction (1959-1965)
tyres: 5.50- 13
fuel: petrol, 80-85 Oct
fuel tank capacity: 3.3 imp qt, 4.0 US qt, 3.8 1 oil, 7.69 imp gal, 9.25 US qt, 35 1.
Engine oil SAE 20
gearbox and final drive oil 1.54 imp gt 1.85 US SAE 90 change every 1900 miles 3000 km
greasing: every 4700 miles, 7500 km, 20 points
sparking plug type 175°
tyre pressure (medium load): front 20 psi, 1.4 atm, rear 20 psi, 1.4 atm