Overview
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Body Styles
 1934 Morris Minor - Overview

The Morris Minors have always represented reliable and enjoyable motoring in the least expensive form possible. Each season has taken this idea a step farther and gives to " Minor motoring " more and more of the attributes of big car practice. 1934 sees still further improvement.


Indeed, this season the Minors are not only " built like a big car " to all intents and purposes they are big cars designed to economical dimensions and with a surprising range of big car features. Consider their points !

On every 1934 Minor hydraulic four-wheel brakes are standard, giving a complete feeling of security, for these brakes can never provoke a skid, however drastically applied, and the braking effort required is of the slightest. No greasing is required.

A self synchronising four speed gearbox now makes gear changing on the Minor very sure and simple; any novice can change up or down on this box like an expert.

Finally, the 1934 body styles add to these amazingly priced models the last touch of modern-minded smartness. Such generous accommodation, such attractive designing, such com- fort and smoothness with real leather upholstery and direction indicators have hitherto been unobtainable in a car with so economical an appeal.


General
The Morris Minor does not differ in general design from a big car. It possesses a sound four-cylinder water-cooled engine built in unit construction with a totally enclosed four-speed synchromesh gearbox, a full length downswept frame with semi-elliptic springs of generous dimensions, hydraulic shock absorbers, hydraulic brakes, and a rear axle of the three quarter floating type with spiral bevel final reduction gears and differential. The transmission from the gearbox to the rear axle is by a large diameter tubular propeller shaft and fabric universal joints. The track is 3 ft. 6 in. (1.07 m.) and the wheelbase 6 ft. 6 in. (1.98 m.) on the Short Wheelbase model. On the long Wheelbase model the wheelbase is 7 ft. 7 in. (2.31 m).

Engine
The four-cylinder engine has a bore of 57 mm. (2.25 in.), stroke 83 mm. (3.27 in.), and a cubic capacity of 847 cc. (5 1.7 cu. in.). Tax £8. The cylinders are cast in one with the upper half of the crankcase, which is extended well below the crankshaft centre to ensure maximum stiffness. The cylinders are provided with a detachable head, facilitating decarbonisation, and the combustion spaces are of the most advanced formation to provide the highest possible efficiency. Side valves operated by adjustable tappets from a camshaft of unusually generous diameter are fitted, and the camshaft is driven by a duplex roller chain from the crankshaft. The two bearing crankshaft has a large roller type bearing at the rear end, and a plain bearing of good length and large diameter at the forward end. Every crankshaft is carefully balanced to very close limits. Steel connecting rods of "I" section and aluminium pistons of the three ring type are fitted. The lower piston ring is of the oil return pattern.

Cooling System
The cooling water circulates by thermo-syphon action through large ports which are carefully positioned to obviate water pockets. The radiator is fan assisted.

Clutch
A single plate clutch of the dry type is built in unit construction with the engine and gearbox. lt requires the minimum of attention and is smooth in action. Operation of the clutch is particularly light and suited to lady drivers.

Synchromesh Gearbox
The gearbox provides four forward speeds and reverse with synchromesh mechanism for top and third gears. Top and third gear trains are, in addition, of the silent type. All gears are of nickel steel and accurately finished. Gear selection is by central lever.

Lubrication
The engine is automatically lubricated by a spur gear pump mounted externally and positioned low down so that it is immune from priming troubles. The pump is driven by helical gearing direct from the crankshaft. and all oil is effectively filtered before circulation by a large oil filter. Oil is delivered underpressure to the main and big end bearings, and a special oil feed is provided for the camshaft driving chain.

Carburation
The working mixture is supplied by S.U. carburetter of the automatic piston type. The petrol supply is carried in a 5 gallon (23 litres) tank mounted at the rear of the chassis, and an S.U. automatic electric Petrolift provides a gravity petrol feed to the carburetter. The inlet and exhaust manifolds are an integral casting, with adequate hot spot. Wide control over slow running and the mixture strength is provided by conveniently operated controls. The petrol tank is equipped with a dash reading electric petrol gauge.

Transmission
The drive from the gearbox to the rear axle is by a balanced tubular propeller shaft of large diameter fitted with fabric disc universal joints at each end. The final drive gears are of the silent spiral bevel pattern, and are mounted with the differential in a sturdy pressed steel rear axle.

The Four wheel Brakes
The foot brake operates internal expanding shoes on all four wheels by the lockheed hydraulic system. The brakes are extremely light in operation, smooth in action, and fully compensated. Their adjustment is simple and there are no bearings or cross shafts needing lubrication attention. The hand brake operates the shoes in the rear drums by cross shaft and cable.

Steering
The steering gear is of the Bishop cam type, which provides exceptional lightness of steering control with extreme accuracy, and materially reduces the transmission of road shocks to the steering wheel.

Electrical Equipment
Ignition is supplied by a Lucas 6 volt battery and coil, the distributor being provided with steering column control for advance and retard. Current for the battery and lighting system is produced by a Lucas dynamo of large dimensions which cuts in at low road speeds. The starter motor is of the sliding pinion type and mounted direct to the flywheel housing. The electrical equipment incorporates traffic indicators, amrneter, combination head and sidelamps with dip and switch mechanism, tail lamp, electric horn, instrument panel illumination, and battery. master switch.

Wheels
Detachable Magna type wire wheels fitted with 4.00" - 18' Dunlop cord tyres are provided.

Suspension
Long semi-elliptic springs are fitted fore and aft and are fully controlled by shock absorbers of the Arrnstrong hydraulic type.