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MG J-type

Field	Value
name	MG J-Type
image	J2 advert.jpg
manufacturer	MG
production	1932–1934
2,494 built
assembly	United Kingdom: Abingdon, Oxfordshire, England
predecessor	MG C-type, D-type and M-type Midgets
successor	MG P-type Midget
class	sports car
layout	FR
body_style	2-door roadster
Salonette

2,494 built Salonette The MG J-type is a sports car that was produced by MG 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 in and a track of 42 in. 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.

TOC

J1

380 made 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

2,083 made The J2, a road-going two-seater, was the commonest car in the range. Early models had cycle wings, which were replaced in 1933 by the full-length type typical of all sports MGs until the 1950s TF. The top speed of a standard car was 65 mph, but a specially prepared one tested by The Autocar magazine reached 82 mph. The car cost £199.

The most serious of the J2's technical failings is that it has only a two-bearing crankshaft which may break if over-revved. The overhead camshaft is driven by a vertical shaft through bevel gears, 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.

Rather than hydraulic brakes the car has Bowden cables to each drum. Although requiring no more pedal force than any other non-power-assisted drum brake if they are well maintained, the drums themselves are small, and even in-period it was a common modification to replace them with larger drums from later models.

MG J2 WH 4594 - 1933 (9086257917).jpg|Rear view

J3

22 made

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

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

References

Green, Malcolm. (1997). "MG Sports Cars". CLB International.
(1983). "The Classic MG".
(1993). "A-Z of Cars of the 1930s". Bay View Books.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

mg-vehicles cars-introduced-in-1932 1930s-cars 24-hours-of-le-mans-race-cars

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