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The amazing success which has attended the introduction of the Morris Eight is a complete justification of the adoption of Specialisation in car manufacture by Morris Motors Ltd.
With a preformance unrivalled in its class and with roominess, comfort and economy much above usual conceptions, the Morris Eight is virtually as big as an ordinary Ten and has definitely established an entire new standard in economical mortoring.
Never before has a car of such modest horse power possessed so many big car features. Observe the sturdy and powerful engine with its large diameter three bearing crankshaft, the steel backed main bearings, the duplex rollor chain camshalf drive, the large capacity dynamo, the hydraulic brakes, the sturdy double box section frame, the hydraulically controlled semi elliptic big car suspension, the generous tyre equipment and the delightful interior appointments and you will marvel that so attractive a car be produced at a low price
The extensive range of attractive models each available in a wide choice of pleasing colour schemes, enables every prospective owner's requirements to be fully realised.
General The Morris Eight does not differ in general design from a big car. It posscesses a sound and excepyional efficient four cylinder water cooled engine built in unit with a total enclosed three speed sychromesh gearbox. A full length dowswept box section frame of special design with semi elliptic springs front and rear generous dimensions. Hydraulic shock absorbers, hydraulic brakes and a rear axel three quarter floating type with spiral bevel final reduction gears and differential. The transmission from the gearbox to the rear axel is by a 2 1/4 in. diameter splicer propeller shalf and needle bearing universal joints.
Frame The chassis frame is of unique design and the body is rigidly attached to it, forming together a double box sectioned structured of great strength
Engine The four cylinder engine has a bore of 57mm (3.54in.)and a cubic capacity of 918cc (56.7in.) It is mounted on improved equipoise suspension. The cylinders are cast in one with the upper half of the crankcase, which is extended well below the crankshalf center to ensure maximum stiffness. The cylinders are provided with a detactable head, faciliting decarbonisation, and the combustion spaces are of the most advanced formation to provide the highest possible efficiency. Side valves operated by adjustable tapperts from a three bearing camshaft of unusually gernerous diameter are fitted, and the camshaft is driven by a silent duplex roller chain from the crankcase. The large diameter three bearing crankshaft has steel white metal bearings of the largest possible fimensions. Every crankcase is carefully balanced to very close limits, both statically and dynamically. Steel connecting rods id "I" section and aluminium pistons of the three ring type are fitted. The lower piston ring is of the oil pattern and pistons and connecting rods assemblies are equalised in weight to within .2oz (best aero engine prctice) 14mm spark plugs are fittered.
Cooling System The cooling water circulates by thermo-syphon action through large ports which are carefully position to obviate steam pockets. The radiator is fan assisted.
Clutch A single plate clutch of the dry type with cushion hub is built in unit construction with engine and gearbox. It requires the very minimum of attention and is exceptional smooth in action. Operation of the clutch is particularly light and suited to lady drivers.
Synchromesh Gearbox The gearbox provides three forward speeds and reverse with synchromesh mechanism for top and second gear. All gears are of nickel steel and accurately finished. Gears selection is by central lever. The gearbox is provided with an accessible oil filling orifice and dipstick oil level indicator. Lubrication can therefor be given without disturbing the floorboards.
Lubrication The engine is automatically lubricated by a spur gear pump mounted internally and positioned low down so that it is immune from priming troubles. The pump is driven by helical gearing direct from the camshalf and all oil is effectively filtered before circulation by a large filter. oil is delivered under pressure to the main, big end camshaft bearings, and a special oil feed is provided for the camshaft driving chain. Enots high pressure chassis lubrication by accessible nipples is employed.
Carburation The working mixture is simplied by S.U. carburetter of the automatic piston type, with non corrosive brass pistons. The petrol supply is carried in a 5½ gallon (25 litres) tank mounted at the rear of the chassis and the petrol is fed to the carburetter by an S.U. automatic electric pressure pump. The inlet and exhaust manifolds are an intergral casting, with adequate hot spot. Wide control over the mixture strength is providied by a conveniently operated control. The petrol tank is equipped with a dash reading electric petrol gauge
Transmission The drive from the geabox to the rear axel is by a balance Spicer tubular propeller shaft (2¼ in. diameter) fitted with needle type universal joints at each end. The final drive gears are of the silent spiral bevel pattern, and are mounted with differential in a sturdy pressed steel rear axel.
The Four Wheel Brakes The foot brake operates internal exspanding shoes on all fours wheels by the Lockhead 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. Acertainly disposed horizontal hand brake lever operates the steel shoes in the rear drums by a short cross cable. The hand brake is provided with instantaneous adjustment from the driver's seat.
Steering The steering gear is of the bishop cam type, which provides exceptional lightness of steering control with extreme accuracy,and reduces the transmission od road shocks to the steering wheel to a minimum.
Electrical Equipment Ignition is supplied by a Lucas 6 volt battery and coil, the distributor being provided with automatic control for advance and retard. Current for the battery and lighting system is produced by a Lucas dynamo of exeptionally large dimension (4½ in.diameter)which cuts in a low road speed. The starter motor is of the sliding pinion type and mounted direct to the flywheel housing. Full five lamp equipment is provided, including headlamps with dimming mechanism, sidelamps and stop and tail lights. The electric equipment incorperates in addition ammeter, electric screen wiper, electric horn, instructment panel illumination, ignition worning light and concealed traffic indicators.
Wheels Five detachable Magna type wire wheels fitted with 5.25 x 16 Dunlop extra low pressure tyres provided. The wheels have six stud fixing
Suspension Long semi elliptic springs are fitted front and rear and are fully controlled by shock absorbers of the Armstrong hydraulic type with improved automatic cold weather regulation. The front shock absorbers are mounted "outboard".
Tool Kit A kit of tools is provided with every car and housed in an accessible toolbox on the dash inder the bonnet.
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