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Creating at its introduction more interest than any small car in the last decade not only in this country but throughout the worldthe Morris Minor, over a period of twelve months, has justified the confidence with which an eager public has waited for it, With a petrol consumption of fifty miles to the gallon when cruising, a maximum speed of more than fifty miles an hour and a higWyefficient overhead valve engine, it has brought motoring to many households who previously considered a car out of their reach.
Considered as a runabout for town use, or as the holiday touring vehicle of a small family, the lvforris Minor meets cars of many times its price with an equal performance. In a short space of time it has spread across the world and won its spurs in countries the world over .
The chassis specification bears comparison with the beSt cars. Bumpers, five lamps, chromium-plated radiator, Triplex glass, shock absorbers, windscreen wiper and, in fact, everything the discerning motoriSt regards as a desirable feature of a small car, is to be found in these, the smalleSt models in the Morris range.
Comfort, reliability, accessibility and durability are combined in a vehicle offered at a diStinctly modeSt price and presenting the loweSt practical running coSts.
General In spite of its low first cost, the Morris Minor possesses nothing unconventional in its layout. Its design is based on the same sound principles that have been responsible for the ever-increasing popularity of other Morris vehicles.
Engine The four-cylinder engine has a bore of 57 mm. and a Stroke of 83 mm., giving a cubic capacity of 847cc, and a tax of £8. The cylinders are cast en bloc with the upper half of the crankcase, which is carried below the crankshaft centre, ensuring great stiffness.
A readily detachable cylinder bead carries the camshaft which operates nickel Steel overhead valves through the medium of taper fingers mounted on eccentric bushes for the purpose of adjuSting valve clearances. The camshaft is driven by spiral bevel wheels, and the entire overhead valve gear is enclosed in a well ventilated and readily detachable oil light cover. The two-bearing crankshaft has a generous roller type bearing at the front end and a plain bearing of great length and large diameter at the rear. The" I" sectioned conneCling rods are all-Steel, and aluminium piStons of the three-ring type are fitted, the lo\ver one being of the oil return pattern. A single-plate toggle-operated clutch is built in unit construction with the engine and gearbox, and requires the minimum of attention.
Gearbox The gearbox, which is built in unit construction with the engine and clutch, provides three forward speeds and a reverse. Control is by central lever, and all gears are accurately ground to ensure silence of operation.
Lubrication The Morris Ivfinor engine is automatically lubricated by an external pump of the spur gear type carried well down so that it is free from priming troubles. The oil is effectively filtered by a large diameter external filter before reaching the pump, and is delivered under considerable pressure to all bearings.
Carburation The working mixture is supplied by an S.U. carburctter of the automatic piston type. The petrol supply is carried in a seven a half gallon tank mounted on the dash, and is gravity fed to the carburetter. The inlet and exhaust manifolds are cast integral with adequate hot spots to ensure economy and good pulling from cold. Adequate control over mixture Strength is provided, enabling the beSt settings for varying fuels and atmospheric conditions to be achieved. The petrol tank is provided with a two-level tap, giving a reserve petrol supply of approximately three-quarters of a gallon for emergency.
Transmission The drive is taken from the gearbox to the rear axle by a tubular propeller shaft of large diameter fitted with fabric disc universal joints. The reat axle final drive is of the spiral bevel gear pattern.
Brakes The foot brake operates internal expanding shoes on all four wheels by cables, while a hand-operated parking brake of the transmission type, with external contracting shoes operating on a drum immediately at the rear of the gearbox, provides additional braking for emergency. The brakes arc powerful in operation and smooth in attion.
Electrical Equipment A coil operating in conjunction with the six volt battery and lighting system provides ignition current, the diStributor being provided with Steering column control for advance and retard. The Starter motor is of the gear type and mounted direct to the flywheel housing. The entire electrical system is of Lucas manufaClure and incorporates a five-lamp lighting equipment.
Wheels Detachable wire wheels fitted with Dunlop reinforced cord balloon tyees are provided. The wheels are secured by three Studs with domed nuts of self-locking pattern.
Suspension Long semi-elliptic springs are fitted fore and aft, and are adequately controlled by single-al1ing shock absorbers of the progressive friction type, giving maximum comfort and roadability. The springing has been designed to carry a useful load of four and a half hundredweights.
Tool Kit The following tools are provided and are housed in a special compartment under the ncar-side front seat :- Jack (with folding handle), tyre pump, wheel brace, three tubular box spanners and tommy, three double-ended spanners, cold chisel, half-round file with handle, 9 in. adjusting spanner, 6 in. steel punch, screwdriver, ignition spanner, lubricating pump for chassis oiling system, pair of pliers, hammer, sparking plug box spanner, cylinder head box spanner, tappet spanner, tyre lever and oilcan.
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