Show 1 f I. I I MOTORING r PROBLEMS iS iii I I ILLIAM ILLIA H H. STEWART JR presIdent president president pres pres- W ident of the Stewart Automobile company compan of New York and a leading authority on construction upkeep and operation of or automobiles gives ve helpful answers answers a to motorists In every every overy S Sunday Suda issue of Tho The Herald- Herald Republican If in a quandary p over or operation of your your our car address your our questions nedo to Motoring Department The Tho Republican Herald and Mr Stewart will give gl his expert advice In the following following fol tol- fol- fol lowing Sunday Issue of The rhe Herald Herald- Republican Copyright hy by W W. II 11 Sto Stewart art I Motoring Motoring- Department Tho The Herald Herald- I Republican I have e a n. 1914 which has heretofore has been perfectly perfectly per per- satisfactory In every particular a very cr quiet running car At miles I r had hall the tho shop Inspect tho the oar car all allover over and the report was that tho the car was In perfect mechanical condition condition condition condi condi- tion and needed no adjustments ex eX- on only tho the carburetor air valve Now No I 1 find In this trouble In hl high h speed with clutch In and motor driving driving In ing the tho car there Is a loud humming noise Where hero it come comes from I cn cannot not guess ruess In high with the the tho clutch In and shutting tUn off ff th the e throttle so that the tho car Is driving the motor the noise immediately immediately im Im- im- im mediately y ceases cases Advancing Ad the throttle again Is-aln tho the noise Immediately Y begins again gain Whore Where does this humming humming humming hum hum- ming noise noo ori what causes It and what Is tho the remedy 1 Thanking you ou for or your our courtesy courtes in answering me I am R R. W W. Tho The noise undoubtedly undoubtedly dl is caused by bythe bythe the thc clutch thrust bearing This bearIng bearIng bearing bear- bear Ing Is Just back o of oi tho the clutch an and should be bo n replaced placed with Ith a n ne' ne now ono one You probably will find It necessary to drop the thc transmission in order to do this Motoring Department Tho The Herald Herald- Please answer the following following fol fol- lowing through the columns of your paper I have ha a one one-c one cylinder engine and cannot get any an- buzz at tho the tor How can I find out If the thc coil coll unit Is 18 defective or not that not that Is ls after taking taking tak tak- ing ing- the coil coll unit out of the tho toll coil box how must I connect It to a battery to discover J If the coil coll Is O. O K or not as I would not like to rewire the whole machine J If the the- trouble is In tho the collon coll coil on only I D By so 80 doing doing- you ou will greatly oblige C C. C H. H If Ie you ou connect the tho two battery batten wires across th the vibrator terminals It t should that buzz that Is Is the po positive wire should be attached to one sl slue side c of the vibrator tor tOl and the negative wIre on tho the other This will complete tIlt the primary circuit through the coil coll and effect a buzz providing providing providing pro pro- viding the vibrator vibrator- Is properly adjusted When doing this you ou should also complete the secondary circuit It should not be bo necessary to remove tho the unit from tho the coil coll box In order to make this test By so doing doing- the secondary will be taken taro care of or You mn may find that the primary p wire Inside of the toll coil has become loosened from Its binding po post t. t thereby leaving the primary circuit open You may also find Ind that the wiring wiring- in the coil coll box Itself Is defective The rhe test you OU have havo In mind to to tomake make moke will isil determine determine whether the tho trouble lies with the coll coil collor collor or or with the tho wiring of the coil coll box I Motoring Department Tho The Horald- Horald I Republican I have havo an nn auto bought nearly two years cars ago It runs good but In starting tho the clutch grabs I know of ot others that havo have the same experience When I bought it It had hall hada a 3 D B-D carburetor About six weeks ago I had put on a model L L. carburetor but that does docs not mal make mako o It any better I put on new leather on the clutch last fall fail I apply ripply oil often but that does not help It nn any Is there any cure for tor tho the grabbing C C. CM u M. M I y You u will undoubtedly find that tho clutch release needs adjusting or re repairing re- re pairing Quito Quite often orten you ou will find that the clutch will disengage gradually gradually all ally but cannot be engaged gradually That Is to say when you OU are e le letting the clutch in you ou lose loso control over th thee the e last of or the en engagement which should be gradual Just previous to the tho clutch taking hold tho the defective or worn yoke oke will permit it t to slip and grab If It you ou will Inspect the those these so parts carefully you OU will undoubtedly find this to bo be the tho trouble You cnn can read read- Il fly lly observe this co condition tto-n- tto by taking k g up the floor loor boards and then disengaging disengaging disen disen- and engaging clutch by hand You Vou will probably find that at tho the lust last Instant of or engagement the tho pedal docs does not maintain proper I r control Any repairman re repairman re- re after noting this condition should be bo able to effect tho the necessary sar repairs I c I Motoring Department The herald herald- Republican y My car has a bothersome sort of or groan In the thc rear axle I have havo I adjusted adjusted- tho the driving pinion In every overy way and have taken apart my axle 1 which IB is a n. one one and havo have adjusted tho the bearings and amid everything e elso else which I thought might bo ho causing caus caus- ing InS this noise but have been unable however t to remedy this condition and would greatly appreciate an nn ex- ex I ion o or of your our opinion on this matI matter mat- mat ter ter-E. ter E. E. E G. G I A defective bearing supporting the pinion shaft would causo cause this trouble Likewise If It you mesh to closely Aho jho two bevel g gars arB a n. disagreeable n niso ie 9 will result After Arter two gears of this s type have havo bavo been run a 11 considerable length of or time it is not advisable to attempt to adjust them too closely The They wear themselves in such a manner mann man man- n ncr ner r that t If moaned meshed too closely to together to- to gether they will ride rido on high spots caused lJ by the previous wear Moro More than likely 1 you OU will find a badly badh worn bearing which Is causing causing- tho trouble Very Vary orY often otton It is necessary l to remove remo a a. bearing and wash It In gasoline In order to detect Its damaged condition A ca casual inspection of a bearing when covered with grease will not always alwan I reveal Its true condition I Motoring Department The Herald Herald- Republican Republican-Is la there an any advantage in heating the carburetor I believe hot air from the motor would also be well I What hat do you OU think about a Jacketed carburetor t M. M B. B I Tho The advantage In heating the carburetor carburetor car car- lies In the application of heat to the parts that require It When hon the tho gasoline Is vaporized at or around the tho spray nozzle the thc temperature at that point Is reduced several degrees In vaporizing tho the liquid a a. certain amount of Cf heat hent is absorbed from tho air and this lowering of tho the t temperature tempera tempera- ture will win chill tho metal of the tho carburetor car car- arid Inlet pipe A As moro more gaso- gaso lIno Is sprayed out of the nozzle I some of It will strike the cold walls of ot the mixing chamber and anel condense Eventual Eventually Even Even- enough ma may form torm there thero to create a n. mixture that would be too tO rich to Ignite properly By lly heating tho the mixing chamber the condensation at this point IH lis l preserved somewhat as ns tho particles 0 or of gasoline when tho they strike the warm tube vaporize causIng causIng caus caus- ing the tho motor to run steadily and andI I effecting a saving sll In gasoline A hot hotI I air pipe IB is also very oer o'er good In fact In Int t some somo instances it Is la sufficient without i tho the hot water Jacket i I c c jc F Motoring Department The Herald Herald- Republican Will Republican Will you p please pease caSe state in your OUI auto column what condition takes place when the thc motor is said laid to be locked What cuu causes ea it and what Is the thc remedy medy r remedy SUBSCRIBER If It th true tho cy cylinders are not proper properly 1 lubricated the tho 1 pistons will seize Inthe In and lock Tho The absence tho the of sufficient c cylinders lubrication permits tho the to come como In direct con contact surfaces coo coo- metal friction through lark lack of tact Un Undue ue metals lubrication causes the proper and seize When hen this th condition condition condition con con- to expand arises tho the damaged surfaces regrind regrind- n necessitating usually usually- score and refitting of lInders ing o of tho the c cylinders new pistons and and r rings k c v Motoring Department Herald lican One lIcan-One One of or the cone coils on my battery box buzzes all tho time I have havo looked ed for a short circuit but I am not able to timid find it t What 1 do you suggest is the trouble S S. S PIt P P. It Is possible that a small strand of wire Is making contact where at attached attached attached at- at to the tho timer or the Insulation on tho the timer at that point Is broken If It the timer Is old would advise lse a anew anew anew new one as the trouble may be Inside inside In Inside In- In side and due to excessive c wear The trouble cat indicates a short circuit som somewhere where In the thc primary circuit cir cir- k je Motoring Department Herald lican The liean-The The float in tho the carburetor of m my car seems to leak It is metal and seems to be Le hen heavier Ier than it should beI be I am told that I need a a. n new w one Why hy cant can't the ono one I have o now b bw he repaired What hat do you OU think about It It J. it-J. J. J L L. L It is bo boat bot to Install a f new float loat This will prove more economical economical and satis factory The Tho cost ost of nf u a n new float loat Is approximately 50 GO cents c A Motoring Department Herald n pub pub- lican lIcan Would Would It cause n I any extra wear on the differential if Ir in turning sharp corner corners one did not throw out the clutch Or la lis It beat best to throw out the clutch and reduce It to 8 second cond speed speed speed-D. D. D. D 0 G. G To throw out clutch in turning corners cor cor- ners does doe not affect the differential It Is la designed to care caro for such require require- ments To lo disengage clutch In turning turn turn- turning ing lug sharp corners is good practice but I this is done dono more to straight I I line shafts Sharp corners should bo be betaken taken at reduced speed To do O this It Is often orten necessary to change to a lower gear before aC accelerating le j r j 4 jH H 4 M f 4 t f 4 HELPFUL HINTS TS 4 4 4 To clean screen of or separator on ont t t 4 gasoline feed line remove screen 4 and use uso air all pressure from a pump f 4 or tank Place nozzle of hoj hose e 4 against screen en Tho The air will force 4 all particles of or fuzz and sediment f out of fine fIno wire mesh f 4 r 4 f When the tho driving wheels get set f 4 Into mud too deep and so slippery f 4 that traction cannot bu bo maintained 4 It is a good plan to throw dust f 4 sand or 01 straw Into tho the mud mull to 4 f thicken It and partly lessen Jessen Its 4 lubricating qualities t 4 t- t In a a. great man many many- wheel bearings 44 4 4 there thero are felt washers cv oven even n 44 4 4 thou though h they ma may not be he e plainly plainly- ap- ap 44 4 4 parent Because they ar are aro put f 4 there to keep the tho lubricant In and 44 4 4 the fio dirt out care should be bo taken f ff f- f to tt see lee that they are replaced If It 4 4 becomes ne necessary sarr to remove a 4 4 wheel for any cause f 4 c c f Starting of motor wIn will be facilitated 44 4 4 I If carburetor mixture la is en- en 4 at starting This Is usual usually 44 4 4 ly 1 accomplished b by a a. dash dagh ar- ar ar arf f 4 Dont Don't blamo blame the sell self 44 4 4 starter If you fall tall to do this or orIf orf or- or 44 4 4 If f you ou try to start motor on ma mag- mag f 4 neto instead of batter battery This apa applies ap- ap f a plies where the self self- 4 starter dOt does not throw the motor f. 4 h o over ocr cr vcr very fast fast- ast f 4 44 4 4 4 The Tho life of tires can be bo greatly t 4 1 prolonged rolon ed provided drivers are aie are are- 4 4 careful to turn corners corner at a low 44 4 4 r rite rate tc of speed 1 keep ep them f free froe roe from rom 44 4 4 oil and pumped with air to pros pros- 4 sur sure specified b by the tho tiro Urn corn com f 4 pan pany 4 4 H 4 44 M 4 4 4 4 r T r 4 f 4 I Motoring Department Herald IJ ral lican W Vh Why by Is la It that some motor car builders use aluminum crank cases and others use cast iron crank cases cases cases' Is there thero an any great rat difference In cost or strength Thanking you ou In advance I Iam Iam am am B B. F. F Aluminum Is used usell on account of its lightness Cast Iron Is much cheaper but weighs considerable more Aluminum Aluminum Aluminum num has about the same strength as cast Iron but is about third one-third lI lighter h ter |