MG J-type Midget (J1, J2, J3, J4)

Mg Midget Cars

MG J-type Midget (J1, J2, J3, J4)

MG J-type Midget (J1, J2, J3, J4) ~ Mg Midget Cars
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Mg Midget Cars

Mg Midget Cars

MG J-type Midget (J1, J2, J3, J4)

The MG Midget Cars is a small two seat sports car produced by MG division of the British Motor Corporation from 1961 to 1979. It re-used a famous pre-war name used on MG M-type, MG D-type, MG J-type and so on.


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.


The J2 was the commonest car in the range and was a road going 2 seater. Early cars had cycle wings but these were replaced in 1933 by the full length type that was typical of all sports MGs up to the 1950's 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.

There were a few serious failings of the J2, most seriously that it only had a two bearing crank shaft which will break if over-revved. The overhead camshaft drive is by a vertical shaft through bevel gears, a shaft which also forms the armature of the dynamo. Any oil leak from the cambox seal goes into the dynamo brushgear and likely a fire.

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're well maintained and aren't sloppy or stretchy. 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.


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.


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.

Related : Mg Midget Cars
Related : Mg Midget

Related : MG J-type Midget (J1, J2, J3, J4) From Wikipedia, the free encyclopedia, Mg Midget Cars

6 Response to "MG J-type Midget (J1, J2, J3, J4)"

  1. old is gold:)

    I know that old is gold. I hope I can have a collection of old days cars with me.

    Anne says:

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    i also like some old cars!! nice blog

    What a lovely writing piece. Really useful info. I am really happy to come across a bulk of such a great written stuff. Thanks

    r4 says:

    What a lovely car is this. I really wish to ride this car. The front look of this car is very attractive.

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