Austin A30

Longbridge · 1952–1956 · 223,264 built

Launched as the New Austin Seven, first of the A-series engines, and the first Austin with no chassis under it.

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About the Austin A30

Shown at Earls Court in October 1951 as the New Austin Seven and in production from May 1952, the A30 was the first Austin built as a monocoque — the work of an aeronautical engineer, T.K. Garrett — and the first car anywhere to carry the BMC A-series engine, an 803cc four making 28bhp. The four-door came first, a two-door followed in October 1953, and the van and the Countryman arrived in August 1954. 223,264 were built before the A35 replaced it in September 1956. Around 35,000 A30s and A35s left Britain as CKD kits, and the first A30 to reach New Zealand was unpacked at Petone in the middle of 1952.

The split that catches people out is AS3 against AS4. The earliest cars, 1952 to 1953, have a completely different dashboard with a round speedometer, a single wiper on the driver’s side only, one stop-tail lamp, the fuel filler in the right rear wing and no rear valance. From AS4 in 1953 the speedo is trapezoidal, there are twin rear lamps, a rear valance appears, and the filler moves to the rear panel with the tank under a solid boot floor. About halfway through production the boot hinges changed to external chrome ones. One more thing worth knowing before you order: the brakes are Lockheed — 7in drums, hydraulic at the front and rod-operated at the rear from a single body-mounted slave cylinder, so not fully hydraulic. That is the opposite of the Cambridge cars, which are Girling, and it is the most common ordering mistake on these.

Austin A30 — specification & changes within the model

Built
May 1952 – September 1956, Longbridge. 223,264 built.
Engine
803cc BMC A-series (57.92 × 76.2mm), three main bearings, 28bhp and 40lb ft, single Zenith carburettor.
Gearbox
Four-speed, floor change with a long direct lever into the box.
Brakes
Lockheed, 7in drums. Hydraulic front, mechanical rod-operated rear from a body-mounted slave cylinder.
Suspension
Independent coil front; live axle on semi-elliptic leaves at the rear. Cam-and-peg steering. 13in wheels.
Bodies
Four-door saloon May 1952 · two-door October 1953 · van and Countryman August 1954.
Early vs late
AS3 (1952–53): round speedo, single wiper, single rear lamp, filler in the right rear wing, no rear valance. AS4 on (1953): trapezoidal speedo, twin rear lamps, rear valance, filler in the rear panel.
Indicators
Semaphore trafficators throughout.
Electrics
12 volt. Screw-type control box on 1952–56 cars.
A30 or A35?
The A35 has the larger wrap-around rear screen, a body-colour grille in a chrome surround, flashing indicators, a remote gearchange with a bigger tunnel, no roof guttering and an 80mph speedo.

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