Austin Motor Company A40 Somerset Sedan Maintenance Instructions Manual Download Page 1

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Summary of Contents for A40 Somerset Sedan

Page 1: ...NUSTIIU A4O IODELS Ruiltll G AllD ITAITTETAlÜCE lnsTR ucrlons ...

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Page 3: ... ú A40 MODELS RUNN I NG AND MAI NTENANCE INSTRUCTIONS JANUARY t953 THE AUSTI N MOTOR CO LTD LONGBRTDGE BTRMTNGHAM BOX 4r c P O NUSTIN PUBLICATION No 881 E WORLD COPYRIGHT PRINTED IN ENGLAND ...

Page 4: ...n the A40 Sports Model which are not common to the Saloon The owner should bear in mind that the warranty does not cover any failure due to inadequate maintenance nor is it extended or varied in any way by the following recom mendations Accessories and equipment are subject to the warranties issued by their makers a list of whom appears at the end of this booklet Alterations in design may sometime...

Page 5: ... z o o Fl o Fr Í a ú t o o z F a D a F ...

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Page 10: ...TS AND CONTROLS INTRODUCTION JACKING LUBRICATION CHART OIL GUN RADIO RECOMMENDED LUBRICANTS REGULAR ATTENTIONS RUNNING IN THE NEW SERVICE ATTENTIONS VEHICLE THE AUSTIN A4O MAINTENANCE INSTRUCTIONS TYRES Pages 4l 40 41 33 34 26 31 16 37 40 25 26 56 36 9 10 25 4r 31 32 1l 14 2 35 36 28 29 23 l4 27 30 17 23 15 24 55 15 34 38 39 s tìj il ìt d JÌ r tffi l 1 p I SERVICE FACILITIES STARTING WIRING DIAGRA...

Page 11: ...d on right side of cylinder block adjacent to cylinder head Lubrication Pump Gear type Pressute hot 40 45 lbs per sq in Filter By pass type Sump capacity 7 Imp pints 4 litres THE AUSTIN A4O MAINTENANCE INSTRUCTIONS Fuel System Pump A C Sphinx mechanical type T Carburetter Jenïth downdraught model No 30 VIG 8 Choke tube 25 Main jet 90 Compensating jet 65 Slow running jet 50 Needle and seat ing 1 5 ...

Page 12: ...s per sq in rear Pressures full load 24 lbs per sq in front 26 lbs per sq in rear Commercial Vehicles Type DunloP 5 00 17 Pressures 24 lbs per sq in front 36 lbs per sq in rear Jacking System Saloon and Coupé Type Stevenson operated by wheelbrace from inside car Commercial Vehicles Type Screw jack to individual wheels Chassis Frame Type Welded pressed steel with full length box section side front ...

Page 13: ...ìng light F Fuel gauge J Thcürcmeler G Mileage recorder K Panel light switch H Ìsnitiòn warnìng light L Starter contol Á Choke control B Windscreen wipet swìtch C Ignition and lighting swiíc 1 D Speedometer THÊ COMMERCIAL VEHICLE INSTRUMENT PANEL INSTRTIMNNTS Speedometer Registers the vehicle speed and total mileagb The trip figures at the top of the speedometer can be set to zero by pushing in th...

Page 14: ...ing the tank Water Temperature Gauge optional extra on Commercial Vehicles This records the temperature of the cooling water circulating in the cylinder block and radiator The correct operating tempera ture under normal conditions should not be below 164 F F T CONTNOTS Accelerator The small right hand pedal which operates the carburetter throttle Brake The centre pedal which operates the brakes on...

Page 15: ...Vehicles Turn to the right until a click is heard This starts the heater fan The further the control is turned the less will be the speed of the fan due to the fact that a rheostat is incorporated Windscreen Wipers To start the eiectric wipers pull out the wipers control To park switch off by pressing the control inwards when the arms are at the end of the stroke Do not try to push the arms across...

Page 16: ... the bonnet is held open by a sliding stay which is bolted lrom the underside of the bonnet to the bulkhead li I lrl RÀDIO The radio Radiomobile Model No 4200 optional extra on Saloon and Coupé is operated via flexible cables by controls mounted on the fascia in front ofthe driver The loud speaker is located centrally in the roof lining above the windscreen To switch on the receiver turn the small...

Page 17: ...s a great strain is inposed on the battery by so doing As soon as the engine starts release the starter and warm the engine up at a fairly fast idling speed Do not under any circumstances race the engine in an attempt to warm up the engine more quickly Blanking off the The following speeds should not be exceeded in the gears Íor the first 500 miles 1st m p h 6 7 It is most important to remember th...

Page 18: ... done when the vehicle is stationary move the gear lever towards the instrumentpanel as fãr as it will go at the same time pulling h ïo n THE GEAR POSITIONS outwards on the lever knob and thenmove the lever downwards Remember how ever that the gearing is now lower than first gear Consequently release the clutch slowly until the vehicle just begins to move and then gently depress the accelerator to...

Page 19: ...upper cylinder lubri cant if desired EVDRY 5 MITBS ON WNffiTY Shackle Pins These are on the rear ends of the rear road springs and should be given a charge ofoil once a week There are two nipples one on each top shackle Front Suspension Apply the oil gun to the lower arm joints where they meet the swivel axle housing C orLrNG PorNrs o u ãl t SUSPENSION Á Steering cross tube B Steering idler C Susp...

Page 20: ...ke pedal nipple B Adjusting nut C Muter ctlindet inlet union D M6tet cyli der outlet union E Clutch pedal nipple nyERY 2 000 mHS 0n MONTHTY Engine Drain the sump and refill with new oil Capacity is 7 pints 4 litres Gearbox Check the level and top up if necessary For access lift the floor carpet and remove the rubber plúg on the right side of the gearbox covering The filler plug is then accessible ...

Page 21: ...verfilled the lubricant may leak through to the brakes H 0 ll D REAR SUSPENSION A Shock abtorber rtiler plug B Rubber ball joint C Brake acljuster D Brake balance lever E Rear axle breather F Brake linkage G Antí roll torsion bar USING A HYDROMETER Ascettain the battety state of chüge by taking h drometer rcadíngs and render them ineffective Wipe away the excess oil from the casing Shock Absorbers...

Page 22: ...e only Champion N 8 8 Long Reach plugs H40 22 B THE AIR CLEANER Note the connection for fume extractíon from the valve cover Distributor Cam and Drive Shaft Bear ings Lubricate the distributor cam shaft bearings by withdrawing the moulded rotating arm from the top of the dis tributor spindle and carefully adding a few drops ofoil round the screw exposed to view See pages 27 and 30 for recom mended...

Page 23: ...n A poor washer will not pgrmit an air tight joint and the operation of the pump will be impaired Remove the bowl of the carburetter for cleaning by taking out the two hexagon THE COOLING SYSTEM A Thetmostat B Water Pump Oíling plug C Drain cock headed retaining bolts On turning the bowl over the float will drop oui and reveal the main and compensating jets at the bottom of the bowl _ The jets may...

Page 24: ... that the square end stands out approximately inch from the casrng Cooling System Flush out the cooling svstem in accordancc with the instructions giuen on page 26 Normally this opera iion is carried out twice annually upon the addition and removal of anti freeze In countries where anti freeze is not required however the cooling system shóulcl be flushed out every 5 000 miles Propeller Shaft Unive...

Page 25: ...rienced in the operation of the gun it is probably due to air locks This can be easily overcome by carrying out the following procedure Extend the steel cylinder as far as possible fiIl the gun wiú the correct oil and replace the cap hold the gun firmly in thê left hand unscrew the cap approximatelv two turns and then gently lorce the steel cylinder into the gun This will force the oil to rhe top ...

Page 26: ...n engine power with pinking indicates when decarbonising is due The correct tappet clearance is 015 in with the engine hot or cold SNNVICD ATTENTIONS rlaHE following additional inspections and adjustments should be carried out I periodically by your Austin dealer at the mileages mentioned v RY 6 000 MITES External Oil Filter Take off the old filter and replace with a new unit Use only 4 C Sphinx T...

Page 27: ...the lubricant in terms of viscosity or fluidity For instance a low S A E number indicates that the oil is of low viscosity which means that it flows more readily than oil with a high viscosity rating It will be appreciated therefore that oil with a low S A E number is essential if easy starting is to be obtained in cold weather whereas in hot weather a higher viscosity oil is desirable in order to...

Page 28: ...n is by a water pump with thermostat control Topping up is only necessary very occasionally The correct level is just below the top of the flller cap threads when the engine is cold rHE RADrAro o rrÏïbâ Use a stif piece of wire if the cock is blocked Draining the System There are two drain cocks one positioned at the bottom of the radiator and the other on the right side of the cylinder block Open...

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Page 30: ...p up thò Gearbox and Rear Axle I Brake Bal4nce Lever 1 Handbrake Pivor 1 Clt h Pedal l Brake Pedal l SteerinC Ofumn top Bush Brake Fluii Supply Tank level froo uodd u Shock Absorbers OIL OIL OIL GUN OIL CAN GREÁSE EXAMINE J K L M N o Drain and refill the Gearbox and Rear A xle 5 000 miles Top up the Steering Box 5 000 miles Uniyersal Joints 2 5 000 miles Clutch Operating Shaft 2 10 000 miles Water...

Page 31: ... ã üio È ã o I o p 9 É ô EF ots d oo Fìo E o rl 9 ào q 4 ã5 A0 È x qÉ aó â É ú o Á ô c a Ë a o Ê o 8ü Fìõ o Ê ai lI õ o Íq ãç o À 0 vE O X o çv Í Èì X X o o 8o xri ã3 âa o ôì o ô o E d x É U k o o x d ú É jl É ë H aO 9ú aÉ ã h I oõ 3 5 o 3à o ã 9 ÂÉ J o 9 tt 39 gì ÊÉ õ Ji9 c ô ú2 tso d ôo z o d A Ë d È Ê o D o a9 iÈ õÉ Ãd EÍr Ed Èi nõ z o OJ á az E riF OJ Àz ...

Page 32: ...d since úhe thermostat enables the engine to warm up very rapidly heat is available for the car rinterior soon after starting _ Description An electrically driven Controls The heating and demisting booster fan bolted to the left hand side unit is controlled by two levers operating of the radiator mounting draws air in a quadrant mounted beneath thè through the front grille and forces it instrument...

Page 33: ...oon The heater consists of a small water radiator through which air is drawn heated and re circulated by means of a fan driven by a small electric motor this being operated by a rheostat switch on the control panel The heater is situated behind and below the instrument panel and warm air is directed towaÍds the feet At the same time a constant stream of warm air is passed across the windscreen via...

Page 34: ...o bleed the system when the connections have been reassembled to ensure that the hydraulic fluid is free of air bubbles There is one bleed nipple fitted on the brake back plate assembly at each wheel Adjustment The adjustment for taking up wear in the brake shoe linings is effected at each brake back plate the brake rods and linkage system should in no circumstances be altered No attempt should be...

Page 35: ... iunning anã riding conditions for the vehicles N B Tire front and rear tyres on the side nearer to the curb should be inflated to a pressure of 213 lbs per sq in above the pressure in the tyres on the opposite side The benefit of this differential pressure will be found in easier handline and less tyre wear particularly in countries where roads are winding and heavily or only moderately cambered ...

Page 36: ... down the jack with the wheelbrace Immediately the vehicle is felt to lift again check that the boss is correctly located in the chassis socket JACKING A FRONT WHEEL Á is the spring lower plate B the jock plotform and C the front wishbone lìnk platform of the jack should be placed ãcross the outer rim ol the spring lower plate so that the lipped end projects into the recess in the spring plate and...

Page 37: ...hragm tighten the cover screws alternately and securely Some times such leakage may actually come from one of the pipe fittings causing the fuel to run down the pump and collect round the diaphragm flange Fuel pump service is available at all Austin dealers and A C service stations They are stocked with parts and fitrings for any repairs and adjustments that may become necessary The Carburetter is...

Page 38: ...he slotted holes in the Light Unit rim Do not disturb the setting of the screws when removing the Light Unit or the alignment will be altered The bulb is made accessible by removal ofthe back shell at the rear ofthe reflector Bulb Fitting Headlights Remove the light rim as described under Headlight Adjustment to gain access to the bulbs Úndo the bayonet catch at the back of the reflector and the h...

Page 39: ...r THE AUSTIN A4O MAINTENANCE INSTRUCTIONS WIRINT IINÊRAM t l lo2l onsg lmn f à RH Sp I Ì L UMp REGUIfOF A CUÌOUÌ THE A4O SOMËRSET SALOON ...

Page 40: ...ì THE AUSTIN A4O MAINTENANCE INSTRUCTIONS I I WINNG DIAGRAM ffi üd lÉ ïl ÍOUmAFFgU rc UTRAFFIATG 21 flOP A TAIL LAMPS THE A4O VA N COUNTRYMAN AND PICK UP 39 ...

Page 41: ...n Lisht Panel Lights Ignition Oil Pressure and Headlight Beam Warn ing Lights Trafficators Roof Light 3s4 354 355 350 989 989 987 987 2s6 354 l so p 35 amos Volts t2 l2 12 12 t2 l2 l2 l2 12 Watts 42136 42136 42136 3s135 6 I 8 6 6 6 2 2 B DYWORK TìVST on the vehicle Tay be lightly flicked offwith a duster bur on all other occasions IJ t re vehicles should be thoroughly wasllecl and dried befóre a n...

Page 42: ...ary clothes clèaner On no account should spirit cleaners be used inside the hood as their use would damage the proofing and wearing qualities of the fabric It will be found that by cleaning by the methods outlined the hood will continue to look as good as new Washing and Polishing All Models Frequent washing with clean cold water willbreatly assist in maintaining the high lustre finish of the pain...

Page 43: ...learances and ignition timing Clean out the carburetter float chamber and check the slow running adjustment Examine and adjust if necessary the sparking plug and distributor points and verify the working of the automaric ignition control Check the front wheel alignment and steering connections Check the clutch pedal clearance Examine and adjust the braking system Check the tightness of nuts and bo...

Page 44: ...eneral to those items and attentions on the Austin Azl0 Sports which vary from the Saloon Model It must there fore be used in conjunction with the preceding Azl0 Mai ntenance lnstructions in order that the vehicle may receive all the periodical attentions necessary to maintain its operating efficiency j 43 ...

Page 45: ...NTENANCE INSTRUCTIONS Pages 54 51 52 50 5l 45 46 50 54 48 49 50 53 OONTTHNTS BODYWORK ELECTRICAL EQUIPMENT FUEL SYSTEM GENERAL INFORMATION GENERAL MAINTENANCE INSTRUMENTS AND CONTROLS REGULAR ATTENTIONS WIRING DIAGRAM 44 ...

Page 46: ...k on flywheel Sparking plugs Champion N A 8 Long Reach Plug gap 025in Clutch Type Borg Beck single dry plate Diameter 7 ins Pedal free movement in ì THE AUSTIN A4O MAINTENANCE INSTRUCTIONS Gearbox Type 4 speed synchromesh on 2nd 3rd and top with steering column mounted gear lever Gear ratios lst 3 89 to 1 Znd 2 44 to 1 3rd 1 54 to 1 top I to 1 reverse 5 39 to l Oil capacity 3 Imp pints 2 litres Pt...

Page 47: ... bracing Chassis No Located on frame adjapent to the engine front mounting bracket on the side opposite to the steering gear Electrical F qúpment Type Lucas 12 volt Battery Lucas G T W 74 Capacity 38 amp hrs at 10 hr rate Dynamo Lucas type C39PV 2 Starter Motor Lucas type M35G Cut out and Regulator Lucas type R8106 Fuse unit Lucas type SF6 Horns Lucas Windtone tYPe WT6l4 Direction Indicators Lucas...

Page 48: ... ì r A o à a F o a 3 z F ô F ...

Page 49: ...in and the needle will record the amount ol luel entering the tank THE INSTRUMENT PÁ NEL E Statler control F lgilition and lighíing steitch G Choke contrcl H Anutteter I I eater motor control H40 226 A J Fuel gauge K Speedometer Oil pressure gauge M Speedometer trìp control N Water t eIt peratur e gauge Water TemperatureGauge This records the temperature of the cooling water cir culating in the cy...

Page 50: ...dry before being replaced EVInY 5 000 mLEs Carburetters The flow of fuel at the carburetter inlet unions to the float chambers should be checked and if necessary the filters in those unions should be cleaned Disconnect the float chamber fuel supply pipes when the filters may be taken out and cleaned slacken the float chamber cap nuts and unscrew the float chamber holding up bolts The chambers them...

Page 51: ... spindles and choke linkages with oil In the event of poor running first make sure the pistons are able to move freely if they are not the causes may be as follows l Dirt in the suction chambers the cure for which is given under Every 10 000 Miles 2 A bent hydraulic damper spoke Cure Straighten or replace 3 A bent jet needle Cure Replace Straightening is not recommended except in an emergency 4 An...

Page 52: ...e setting can be altered as desired For example il the beam needs swinging to the left the screw on the left side of the Lisht Unit must be tightened No focusing device is necessary with this tvDe of lamp since the bulb is manu factuied in such a way that the filament is always positioned correctly with respect to the local point of the reflector lathe and have square shoulders others on a centrel...

Page 53: ... To remove a bulb switch on the indicator hold it in the out position and then switch off Withdraw the screw on the underside ofthe arm and slide off the metal plate when the bulb can be renewed When replacing the metal plate slide it in an upward direction so that the plate engages with the slots on the underside of the spindle bearing Fases The fuse unit is situated adjacent to the voltage regul...

Page 54: ... I I THE AUSTIN A4O MAINTENANCE INSTRUCTIONS WINNT DI IÊRAM SÌARÌEI HORil HJSB T TRAMqTOR íARÊR l aií DIP t7 U 5pIüILLAMP M PLATEUW R H THE A4O SPORTS MODEL ...

Page 55: ... water and a stiff or semi stiff brush of the nailbrush type If dust and grime has been allowed to remain on the hood for a long time so that it has become really dirty and the ordinary soap and water method is not completely effective then clear methylated spirit or any other clear spirit such as Benzine may be used with the same type of brush It will be found that by cleaning by the methods outl...

Page 56: ...Austinserv Nottarch U S A The Austin Motor Company Limited England Austin House 27 29 W est 57th Street New York 19 N Y Ca ble s Austinmoto NewYork Canâdâ The Austin Motor Company Canada Ltd Service Division 1393 Yonge Street Toronto Cable s Austinette Toronto Australia The Austin Motor Company Australia Ltd 109 Dudley Street West Melbourne Victoria Cable s Austinette Melbourne In all instances th...

Page 57: ...ton Vale London W 3 and Branches INSTRUMENTS AND HEATER UNIT Speedometer Petrol Gauge Oil Gauge S Smith Sons M 4 Ltd Cricklewood Works London N W 2 ADJUSTABLE SEAT MECTÍANISM A W Chapman Ltd Ranelagh Gardens Fulham London S W 6 LIFTING JACK Smith s Jacking Systems Ltd Edgware Road London N W 2 TYRES AND TUBES Dunlop Rubber Co Ltd Fort Dunlop Birmingham 24 and Albany Street London N W l CARBURETTER...

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