1932-1934 MG J Midget

From Wikipedia, the free encyclopedia

The MG J-type was produced by the MG Car company from 1932 to 1934. This 2-door sports car used an updated version of the overhead camshaft, crossflow engine, used in the 1928 Morris Minor and Wolseley 10 and previously fitted in the MG M-type Midget of 1929 to 1932, driving the rear wheels through a four-speed non-synchromesh gearbox. The chassis was from the D-Type with suspension by half-elliptic springs and Hartford friction shock absorbers all round with rigid front and rear axles. The car had a wheelbase of 86 inches (2184 mm) and a track of 42 inches (1067 mm). Most cars were open two-seaters, but a closed salonette version of the J1 was also made, and some chassis were supplied to external coachbuilders. The open cars can be distinguished from the M type by having cut-away tops to the doors.

J1 The J1 was the four-seat car in the range. The engine was the 847 cc unit previously seen in the C-type with twin SU carburetors giving 36 bhp. The car cost £220 in open and £225 in Salonette form.

J2 The J2 was the commonest car in the range and was a road-going two-seater. Early cars had cycle wings, but these were replaced in 1933 by the full-length type that was typical of all sports MGs until the 1950s TF. The top speed of a standard car was 65 mph (105 km/h), but a specially prepared one tested by The Autocar magazine reached 82 mph (132 km/h). The car cost £199. There were a few serious failings of the J2, most seriously that it only had a two-bearing crank shaft which can break if over-revved. The overhead-camshaft is driven by a vertical shaft through bevel gears, a shaft which also forms the armature of the dynamo. Thus any oil leak from the cambox seal goes into the dynamo brushgear, presenting a fire hazard. Another problem was that it was not fitted with hydraulic brakes, but had Bowden cables to each drum. These require no more pedal force than any other non-power-assisted drum brake, provided that they are well maintained. The drums themselves are small and even in period it was a common modification to replaced them with larger drums from later models. The non-syncromesh gearbox takes some getting used to, as for any car of this period, but with its short gear stick it becomes second nature to double de-clutch and rare to grind the gears.

J3 The J3 was a racing version with the engine capacity reduced to 746 cc by shortening the stroke from 83 to 73 mm and fitted with a Powerplus supercharger. The smaller engine capacity was to allow the car to compete in 750 cc class racing events. Larger brakes from the L-type were fitted.

J4 The J4 was a pure racing version with light-weight body work and the J3 engine, but using more boost from the supercharger to obtain 72 bhp.

MG J-Type
1934 J2
Manufacturer MG Car Company
Production 1932-1934
2494 made
Predecessor MG C and D Type Midget
Successor MG P-type Midget
Class sports car
Body style 2-door roadster
Salonette
MG J1
Production 1932-1933
380 made
Engine 847 cc Straight-4
MG J2
MG J2 1933 2.jpg
Production 1932-1934
2083 made
Engine 847 cc Straight-4
MG J3
Production 1932-1933
22 made
Engine 746 cc Straight-4
MG J4
MG J4 750ccm75PS 1933.JPG
Production 1932-1933
9 made
Engine 746 cc Straight-4

References

  • A-Z of Cars of the 1930's. Michael Sedgwick and Mark Gillies. Bay View Books. 1989. ISBN 1-870979-38-9
  • MG Sportscars. Malcolm Green. CLB International. 1997 ISBN 1-85833-606-6

 

External links

 

Retrieved from "http://en.wikipedia.org/wiki/MG_J-type"