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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 (2,184 mm) and a track of 42 in (1,067 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.[1]

MG J-Type
Overview
Manufacturer	MG
Production	1932–1934 2,494 made
Body and chassis
Class	sports car
Body style	2-door roadster Salonette
Layout	FR
Chronology
Predecessor	MG C-type, D-type and M-type Midgets
Successor	MG P-type Midget

J1

MG J1
Overview
Production	1932–1933 380 made
Powertrain
Engine	847 cc I4
Dimensions
Wheelbase	2,184.4 mm (86 in)[2]

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.[3]

J2

MG J2
J2 1933
Overview
Production	1932–1934 2,083 made
Powertrain
Engine	847 cc I4
Dimensions
Wheelbase	2,184.4 mm (86 in)[2]

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 (105 km/h),[3] but a specially prepared one tested by The Autocar magazine reached 82 mph (132 km/h). The car cost £199.[1]

The most serious of the J2's technical failings is that it has only a two-bearing crankshaft which can 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.

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J3

MG J3
Overview
Production	1932–1933 22 made
Powertrain
Engine	746 cc I4–S
Dimensions
Wheelbase	2,184.4 mm (86 in)[2]

The J3 was a racing version with the engine capacity reduced to 746 cc by shortening the stroke from 83 to 73 mm[1] 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.[3]

J4

MG J4
Overview
Production	1932–1933 9 made
Powertrain
Engine	746 cc I4–S
Dimensions
Wheelbase	2,184.4 mm (86 in)[2]

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

External links

• www.mgjtype.com- Archived 29 March 2012 at the Wayback Machine

На других языках

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[de] MG J-Type

Der MG J-Type wurde von MG von September 1932 bis März 1934 gebaut. Der 2-türige Sportwagen wurde durch einen Motor mit obenliegender Nockenwelle (ohc) angetrieben, wie er im Wesentlichen schon im Morris Minor und Wolseley Ten sowie von 1929 bis 1932 im MG M-Type verwendet wurde, hier in überarbeiteter Version mit Querstromzylinderkopf. Die Motorkraft wurde über ein unsynchronisiertes Vierganggetriebe an die Hinterräder weitergeleitet. Das Fahrgestell stammte vom MG D-Type und besaß vorne wie hinten an halbelliptischen Blattfedern aufgehängte Starrachsen, die mit Hartford-Reibungsstoßdämpfern versehen waren. Der Wagen hatte einen Radstand von 2184 mm und eine Spurweite von 1.087 mm. Die meisten Ausführungen waren offene Zweisitzer, aber es gab auch eine geschlossene Salonette-Version des J1 und einige Fahrgestelle gingen an selbständige Karosseriebauunternehmen. Die offenen Wagen kann man vom M-Type dadurch unterscheiden, dass sie tief ausgeschnittene Türen besitzen.

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- [en] MG J-type

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[fr] MG J-type

La MG type J est une voiture de sport produite par MG de 1932 à 1934. Cette 2 portes utilisa une version mise à jour du moteur à arbre à cames en tête, provenant des Morris Minor et Wolseley 10 de 1928 et déjà intégré dans la MG type M Midget de 1929 à 1932, entraînant les roues arrière par l'intermédiaire d'une boîte à quatre vitesses non-synchronisée.

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[it] MG J-Type

La J-Type è un'autovettura prodotta dalla Morris Garages dal 1932 al 1934.

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