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pedal (or, if the car is equipped with Automatic Clutch Control, depress accelerator 
lightly) to obtain proper gear mesh. Then repeat the gear selection procedure.

When it is desired to make another shift, simply depress the clutch pedal, move 

the lever into the gear position desired, and allow the clutch to re-engage.

It should be remembered that, when changing from one gear to another, it is 

always necessary to depress the clutch pedal fully to the floorboard when the actual 
shift of gears is desired (not necessary to depress clutch pedal, but merely raise the 
foot from the accelerator pedal when Automatic Clutch Control is used).

The need of a 

gear shift lever 

is eliminated on cars equipped with "Electric Hand"; 

however, a lever is provided in a pocket mounted on the inside of the right-hand front 
door hinge pillar should it be necessary to shift the gears when the engine is not 
running. Inasmuch as the operating force of the "Electric Hand" is vacuum, and this 
is not available unless the engine is running, it is impossible to shift gears unless the 
hand gear shifting lever which is provided is used. This lever may be used by 
removing the cap in the floor mat, which exposes the top of the transmission control. 
Any desired shift can be made with this lever by simply depressing the clutch pedal 
to disengage the clutch. The "off and on" switch on the selector mounting should be 
turned "off" while shifting lever is in place.

Selective Automatic Shift

When the Automatic Clutch Control is combined with the Electric Hand it 

provides a Selective Automatic Shift by means of which the clutch is operated and 
gears are shifted without physical effort other than that required to flick the finger tip 
control lever into the desired gear position.

Hudson Hydraulic Hill-Hold

When the car is equipped with Hydraulic Hill-Hold, in addition to the Automatic 

Clutch Control, the clutch pedal must be depressed manually in order for the 
Hydraulic Hill-Hold to function with the car at rest on a grade. This is necessary in 
view of the fact that the Hydraulic Hill-Hold is actuated by movement of the clutch 
pedal which remains in the engaged position when the Automatic Clutch Control is 
in operation.

Pull the choke out, turn the ignition switch on, and push starter button. Return the 

choke control gradually as the engine warms up. Do not keep the choke out any 
farther than necessary for smooth running of the engine.

Should a flooded condition of the carburetor develop through operation of the 

accelerator pedal or excessive use of the choke, push the choke control in and depress 
the accelerator pedal fully for further cranking of the engine.

Series 82 (Automatic Choke)

The carburetor is equipped with an automatic choke control which provides the 

correct mixture of gasoline and air for starting without resort to manual choking.

S

38 H U D S O N  

T E R R A P L A N E

STARTING THE ENGINE

Series 81 (Manual Choke)

Summary of Contents for 1938 Terraplane

Page 1: ......

Page 2: ......

Page 3: ...we have prepared this manual which incorporates com prehensive information to enable you to render the attention that such a fine piece of mechanism as this motor car deserves Complete satisfaction c...

Page 4: ...D S O N T E R R A P L A N E Service Parts The mechanics employed by this establishment are trained to Hudson factory practices and procedures The Hudson dealer displaying this sign is also your assura...

Page 5: ...ned to us with transportation charges prepaid and which our examina tion shall disclose to our satisfaction to have been thus defective this warranty being expressly in lieu of all other warranties ex...

Page 6: ...oroughly check your car periodically 6 Duplicate keys are supplied with each car Be sure key change numbers are noted in the spaces provided on the Ownership Card This is important as insurance regula...

Page 7: ...O W N E R S M A N U A L 5...

Page 8: ...r Leaks TightenCylinderHeadStudNuts Lubricate Hood Lacing L H side CheckRadiatorWaterLevel anti freeze inwinter CheckFanBeltAdjustment CheckBatteryandConnections Check Generator Charging Rate 25 26 27...

Page 9: ...aces cylinder walls or pistons or abnormal increases in clearances which will shorten the life and impair the performance of the various units Be sure that the proper radiator water level is maintaine...

Page 10: ...inders 6 A M A Horsepower Rating 21 6 CylinderBore 3 Piston Displacement 212 cu in Stroke of Piston 5 TECHNICAL INFORMATION Engine Type 6 Cylinders en bloc Compression Ratio Standard 6 25 to 1 Optiona...

Page 11: ...ery Pump Air Cleaner Standard Oil Wetted Intake Silencer Type Air Cleaner Optional Extra Cost Oil Bath Intake Silencer Type Gasoline Tank Capacity 16 Gallons Starting Lighting and Ignition Make Autoli...

Page 12: ...ty Dimensions Length Width Height over all Terminal Grounded National 17 105 Ampere Hours 10 9 16 7 1 4 7 15 16 Positive Clutch Type Clutch Pedal Clearance at Floor Boar Oil Cushioned Single Plate 1 T...

Page 13: ...ressure 15 x 7 00 Front 22 Rear 28 Wheel Jack Bumper Type Chassis Dimensions Wheelbase 117 Tread Front 56 Rear 591 2 Road Clearance Center Front Axle 8 9 16 Rear Axle 8 7 16 Over all Length including...

Page 14: ...ion methods and specifications and he only should be consulted on matters of lubrication The various units of the car require different types of lubricants and only those grades specified should be us...

Page 15: ...lubricant to meet seasonal re quirements A quick reference table has been pre pared and is shown on page 12 Reference to this table will indicate to the car owner the proper grade of lubricant to sele...

Page 16: ...se Figure 1 Always maintain the oil level within the oil level range on the bayonet gauge EVERY 1 000 MILES All lubrication fittings and oilers should be wiped off with a cloth dipped in kerosene befo...

Page 17: ...excessive gun pressures from damaging the self adjusting oil seal a metered lubrication fitting A Figure 5 is provided on the water pump Lubricate the water pump through this fitting every 1 000 miles...

Page 18: ...l housing Figure 7 This should be lubricated with one ounce of viscous chassis lubricant every 1 000 miles Clutch and Brake Pedals Shaft A lubrication fitting A Figure 8 is provided on the clutch and...

Page 19: ...e To maintain proper balance a plug is fitted into the universal joint A Figure 10 and this should be removed and a lubrication fit ting installed to perform the operation Be sure the fitting is remov...

Page 20: ...bricated with viscous chassis lubricant every 1 000 miles Brakes Check fluid in brake master cylinder every 1 000 miles and add sufficient Gen uine Hudson Hydraulic Brake Fluid to bring level up to wi...

Page 21: ...filter unit 2 Remove cover and pad B 7 Reinstall cover and pad B with 3 Remove filter unit C hard side of pad down 4 Wash filter unit in gasoline to re 8 Reinstall wing nut A move all traces of dirt...

Page 22: ...dium soap base lubricant every 5 000 miles See page 63 for adjusting procedure 20 H U D S O N T E R R A P L A N E 5 Refill sump with one measured pint of new S A E 50 engine oil in summer and 20 W in...

Page 23: ...the flywheel is visible through the inspection hole Allow a minute in this position to drain then turn the en gine until the filler hole again appears in the timing hole and insert one third pint of H...

Page 24: ...earances of the bearings These qualities can be obtained in S A E 90 E P extreme pressure gear oil for summer and S A E 80 E P gear oil in winter Three ounces of kerosene may be added to the lubricant...

Page 25: ...90 E P extreme pressure gear oil in summer and winter Remove filler plug A Figure 24 and fill housing until lubricant reaches level of filler hole Replace plug securely EVERY 10 000 MILES Spring Cover...

Page 26: ...Hudson dealer perform this service Figure 8 Electric Hand Optional equipment To prevent the Electric Hand power cylinder piston leathers from drying out the power cylinder should be lubricated every 1...

Page 27: ...l Bath Carburetor Air Cleaner installed The frequency with which the air cleaner should be cleaned and re oiled depends of course upon local dust conditions The protection which this type of air clean...

Page 28: ...x Base Polish to restore the lustre However if a more lasting high lustre is desired it may be obtained by applying a film of Hudson Wax Polish Hudson polishes are carefully compounded and are entirel...

Page 29: ...d become matted down by covering the area with a damp cloth and then steaming it with a hot iron Most spots which are apt to soil the car upholstery can be quickly and neatly removed by the use of Hud...

Page 30: ...ry service man Distilled water should be added to the battery at such intervals as will insure the plates being covered at all times Usually water should be added twice a month in warm weather and mon...

Page 31: ...in the rim After the valve is aligned in the hole start application of the second bead directly opposite the valve pressing it into the rim well and working in both directions so that the section of t...

Page 32: ...aintain original stability at high driving speeds have wheels and tires rebalanced whenever it is necessary to remove and reinstall a tire on a wheel or if tire changes are not necessary balance at in...

Page 33: ...ne is required at 70 miles per hour than at 20 miles per hour The above figures are representative of actual tests made with a number of makes of cars For further information see Fuel Compensation on...

Page 34: ...ward When driving for long periods which is not unusual these days it is often desirable to change the seat position which tends to change the body posture and maintain a relaxed position Steering Whe...

Page 35: ...the engine block Teleflash Generator Charging Indicator The teleflash generator charging indicator located to the left of the water tem perature gauge at a glance indicates the condition of the gener...

Page 36: ...e can be cranked only by pressing the button after the ignition key has been turned on Note The engine may be cranked with the starter from the engine compartment by removing the small cap at the back...

Page 37: ...ic Clutch Control On cars equipped with automatic clutch control which is optional equipment on all models a switch is provided on the left hand side of the instrument panel Figure 32 When the knob is...

Page 38: ...ravel of the foot pedal Parking Brake The hand or parking brake system utilizes the rear wheel brake shoes operated by means of heavy non stretching steel cables through an equalizer Hand brakes are a...

Page 39: ...when the car is being serviced We suggest the following procedure in operating the Electric Hand equipped car a Be certain the off and on switch is in on position b Depress clutch pedal fully to the...

Page 40: ...selector mounting should be turned off while shifting lever is in place Selective Automatic Shift When the Automatic Clutch Control is combined with the Electric Hand it provides a Selective Automati...

Page 41: ...hould then be thoroughly checked by your Hudson dealer for the source of the difficulty Carbon Monoxide Gas Carbon monoxide a poisonous gas is ever present in the exhaust of an internal combustion eng...

Page 42: ...onnecting rod bolt nut from loosening The upper end of the connecting rod is fitted with a bronze bushing to which the piston pin is fitted with 0003 clearance The pistons are of silicon aluminum allo...

Page 43: ...lators The flow of oil after returning to the crankcase is controlled so that it circulates around passages adjacent to the cool outside walls of the reservoir and is cooled before passing through the...

Page 44: ...Compensation page 44 Breaker Points The breaker points should be adjusted to a 020 maximum opening The points should be clean and set squarely on each other Should the points become pitted it is neces...

Page 45: ...h the pointer on timing inspection hole in the rear support plate of the motor as indicated at A Figure 36 The piston is then at U D C and ready to move downward on the power stroke Setting Ignition T...

Page 46: ...A mounted on the top of the starting motor Control of the starter is through a remote control switch located on the instrument panel Figure 32 The drive to the engine is through the Bendix drive loca...

Page 47: ...rolled by the third brush On these models the maximum charging rate with hot generator that is after the engine has been run for 15 or 20 minutes indoors should be 18 amperes while the minimum should...

Page 48: ...o the front of the engine The control valve is adjusted by loosening nuts B sufficiently to relieve pressure of bar C Be sure to tighten nuts securely after valve is moved to prevent exhaust leaks dev...

Page 49: ...thermostatic spring and is auto matic in operation supplying the correct amount of heat to the intake manifold under all operating conditions CARBURETOR AIR CLEANERS Standard Type To provide for long...

Page 50: ...tric on the camshaft A filter screen and sediment bowl A are provided to prevent foreign matter in the gasoline from reaching the carburetor This bowl and screen should be removed and cleaned every 2...

Page 51: ...ies 82 turn the two idling screws E Figure 40 into their seats and back out exactly three quarters of a turn 2 Start engine 2 When engine has reached normal operating temperature adjust intake valve t...

Page 52: ...he cylinder block left side to rear of side cover plate Care of the Cooling System To maintain proper cooling efficiency it is essential that the radiator be kept clean of scale and corrosion due to e...

Page 53: ...f the oil cushioned type with large single cork insert plate and is drivenbyfrictionfromtherearfaceofthesteelflywheelandtheforwardfaceofthedrop forged steelpressureplate Largecoilengagingsprings somew...

Page 54: ...52 H U D S O N T E R R A P L A N E Figure 43...

Page 55: ...nizingtransmission Figure 46 incorporating helical gears to give a silent secondgearandinvolutesplinemainshaftand countershafttoprovideeasyshifting isusedin the 1938 Hudson Terraplane Allgearsaremadeo...

Page 56: ...54 H U D S O N T E R R A P L A N E Figure 45...

Page 57: ...h on conventional gears makes it impossible to get proper clearance without binding on extreme turns due to maximum wear coming in the straight ahead position It is important that the drag link be rem...

Page 58: ...oved or gear is misaligned in car Cross Shaft and Roller Tooth The mesh between the worm and roller tooth is adjusted by a screw C Figure 47 extending through right side of the gear housing A flat was...

Page 59: ...riding qualities under all driving conditions Springs The spring leaves are lubricated with a viscous chassis lubricant and are protected against road dirt and water by spring covers Spring shackles...

Page 60: ...sition it will be necessary to remove shims from the rear pack A Figure 49 and add to the front pack B In the event that the front wheels point to the left reverse the operation that is remove shims f...

Page 61: ...O W N E R S M A N U A L 59...

Page 62: ...he spindle pivot pins are drilled centrally full length and are equipped with a single 90 metered pressure type reservoir grease fitting located above each pivot pin The reservoir fittings are of spec...

Page 63: ...ecrease caster proceed as follows 1 Loosen upper bolt A 2 Remove bolt nut and lock washer B and withdraw bolt 3 Remove shim at location C Note Whenever caster setting is changed it is necessary to rea...

Page 64: ...62 H U D S O N T E R R A P L A N E Figure 54...

Page 65: ...under the cap the end play of the axle shaft is decreased Total play between axle shafts should be from 005 to 010 which is perceptible by pulling shaft in and out with the hand It is necessary that t...

Page 66: ...64 H U D S O N T E R R A P L A N E...

Page 67: ...with the pedal shank 8 1 4 from the toeboard and the bell crank against its stop Reinsert clevis pin 11 in bottom of ball crank insert cotter key and tighten lock nut 9 This adjustment is important a...

Page 68: ...rod 5 Tighten lock nut 13 securely Brake Shoe Adjustment There are only two points of adjustment in the braking system to compensate for brake lining wear The eccentric adjustment B Figure 55 central...

Page 69: ...e designed to give maximum safe illumination under all driving conditions The lamps are fitted with 1 candlepower bulbs for the parking position and prefocused bulbs having a flanged mounting to insur...

Page 70: ...clockwise to lower the beam To move the beam toward left Turn the right adjusting screw B clockwise and the left adjusting screw A counter clockwise proceeding as outlined above LAMP LENS AND BULB REP...

Page 71: ...eight points to insure rigidity Through Hudson unit construction principle of building the body and chassis as a unit your car is assured of freedom from squeaks and rattles throughout its life Hudso...

Page 72: ...ehind the rear seat in the rear compartment of Coupe models is made of cloth and acts as a screen to prevent dirt and dust from entering the body it should be inspected periodically and cleaned when n...

Page 73: ...er the front seat is also of the full length Sedan type with the cushion hack built in two sections each section of which may he tilted forward independently and is pivoted at the left front corner to...

Page 74: ...screw C Fig ure 6 i set in the lock pillar post and move the bumper in or out as neces sary to permit the door to close to the proper position Tighten screws securely Door striker plates D Figure 63 a...

Page 75: ...Automatic Shift gear changing is accomplished faster with less effort on the part of the driver and the elimination of clashing by synchro nizing the actual movement of gears with the clutch fully di...

Page 76: ...RADIOS are available which utilize to the fullest extent the many advances which have been made in radio engineering They are real musical instruments of exceptional tone quality designed expressly f...

Page 77: ...armonize with the car headlamps and is finished in a durable chromium finish HUDSON FENDER LAMPS beautifully designed in the streamline motif afford real protection while parking at night These lights...

Page 78: ...ull assurance that such accessories will harmonize with the car design and provide to the fullest extent the service for which they are intended YOUR HUDSON DEALER WILL GLADLY SHOW YOU THE FULL LINE O...

Page 79: ...arden and lose its elasticity It is a good idea to wrap tires with cloth to protect them from heat Remove all dust from upholstery wash body clean put the windows or the top up and cover the car with...

Page 80: ...ns D Distributor DoorAdjustment DragLink DrainingCoolingSystem DrivingHints DustStormPrecautions E ElectricClock ElectricHand Engine EngineTuning Equipment F FanBelt FenderLamps FogLights FrontAxle Fr...

Page 81: ...ngtheEngine Starting Motor Steering Gear SteeringGearAdjustment Storage Preparingfor T TechnicalInformation Terminals ThrottleLinkage Tires TireInflationPressures TireRemoval Spare TireWear Tools Tran...

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