Show MOTORING MOTORING PROBLEMS P PROBLEMS 1 ILLIAM ILLIA H. H STEW STEWART ART JR president president president W WILLIAM dent of 0 ithe Automobile company compan of 0 New York and a leading authority on construction upkeep upkeep up up- keep and operation of ot automobiles gives helpful answers to motorists In eVer every Sunday Issue of ot The Tho Herald Herald- Republican If It In a quandary vcr ever o op operation operation op- op of or your car address your our our question ques- ques question quos ques tion to Motoring Department Department The Republican Herald-Republican and Mr r. r Stewart will give gl his export expert advice In the fol following following fol- fol allowing lowing Sunday Sunda Issue of at The Tho Herald- Herald Republican Copyright by W. W H. H Stewart Motoring Department The Herald- Herald I Republican I have a n carburetor tor on m my roadster and It allows the gas to escape I believe this thle occurs at atthe atthe atthe the pin that shuts off ort tho the gas I am amot of ot the opinion that the pin does not scat seat or that the float Is too hea heavy and does docs not float What hat can I d do de to remCO rem rem- remear CO ear cay the trouble L. L C C. The float In the t carburetor may bo be adjusted too high or oras as you OU suggest the trouble may mar be or In n the valve I 1 Ithe If the the float valve does not fit perfectly the gasoline will leak If It such Is la theale the tho case It Is best to replace the old valve aho ale ate with a new one Very Very often oHen this valve may be reseated by tapping slightly making sure suro to center tho the valve ahe pin at the time It Is possible I that the valve alvo pin and seat scat are worn considerably and If so It would be most to tl replace same ame F Motoring Department The Herald Herald- Republican Although Although the differential of or m my car Is well wen lubricated I 1 cannot stop the singing What hat can you ou suggest suggest sug BUg gest T C C. D. D It Is vcr very lIkel likely that the pinion on the tho end of oC the ln driving shaft shaH is JS me meshed hed too loo deeply in tho the crown or muster gear seal of 0 tho the differential The noise you ou speak of may be eliminated by moving the two gears gear slightly apart Most ost cars Iare I Iare are aro equipped with an nn adjustment so I that the differential as a unit ma may be moved from side to side Motoring Department The Herald- Herald I Republican I have hae a new car equipped with the duplex ignition is and occasionally occasionally occasion occasion- ally when motoring the engine engino will stop but if It the switch Is turned I to the battery or even slightly lIghtly toward It t the engine will pick up and run ill all right Please llense explain the tho cause caus of this thin i- i 1 F. F M. M It appears that tho the trouble lies In the switch Possibly a loose connection Is causing the trouble It would be best beet to have a competent repair man Inspect the tho switch carefully curd and also the Various various va Va- various rious wiring terminals Would also BU suggest nest that you OU communicate direct with the tho makers of ot this ma magneto neto as ns Itma It ma may be bo necessary for tor you ou to return It Itlo to lo them for tor repairs The Tho trouble however how how- ever over Is 15 probably of or a miner nature rF j c Motoring Department The Herald- Herald Republican Is Is It possible to put skid chains on tho tires without going to the trouble of at Jacking up the te rear wheels and If It It Is IE possible what what tho the best way to go about It W W. W E. E It Is almost as aa easy to apply the chains without Jacking the wheels aMIt as aM asIt asit It le is to Jack them First get the caron car caron caron on a level spot upon upen which It will be easy to roll back and forth Second la lay lay- laythe the chain over the tire tiro with the hooks hooke of at the tho cross links upward so ao I the they will Ill not cut Into the tire tiro Third roll tho the car forward so 80 that It t will rollover roll rollI rollover over tho end of the tho chain Lastly take takeI I I I held of ot each end of ot the tho chain and and ana pull them together at tho the same time rolling roling the tho car slight slightly so as to Insure a tight fit before hooking hooking the ends end f x oot Motoring Department The Herald Herald- Republican I have ha a t two cylinder I car Just had the cylinders an and new pistons and rings made had the transmission overhauled at the machine shop it being a planetary type What 1 I would like to know Is la lathat that when I take tako at off the drive chain or Jack lack up a rear wheel I L 1 can start It with case but otherwise I have a ahard ahard ahard hard time getting It started Compression Compres Compres- sion slon lt is good The machine shop man tolls tells me It Is tho the differential which turns free tree enough Please advise E E. G G. It appears that the trouble lies Inthe in inthe inthe the differential The Tho fact that everything everything every even thing thinK Is la all right when whon tho the drive chain when chain Is la removed is conclusive evidence c that the trouble lies Its It's hack back of ot tho the transmission transmission transmission sion While one ono section of the differential differ differ- differential may work freely with one wheel Jacked up nevertheless this docs does not Indicate that the tho differential as a unit Is In In good repair It should not be a I difficult matter to locate the trouble in th th rear axle system Would SUII sugI suggest sug- sug I Rest est that you ou Jack up both wheels and andI I tr try each wheel separately and also thew the tho w whole laic axle as a unit Motoring Department Tho The Herald Herald- Republican I am having trouble with the multiple dl disc c clutch of my mv car oar It will run along for tor about twenty or thirty feet before It takes take hold and when it does it grabs Krabs quickly Jerking 1 4 HELPFUL HINTS ims 4 It Is the prevailing thought that f tires pumped up hard will roll rollf f easier and Increase the tho mileage per 4 gallon of at gasoline as compared compared- f with softly Inflated casings In a af f recent test It was found that such 4 Is not the case and that on the whole the tho tire will t 44 4 4 show better mileage o. o The Tho theory 44 4 4 Is that the soft tire the will wraparound wrap f 4 around the tho bumps and road obstructions ob- ob 4 while the tho hard tire the 4 must mount them and thus consume con con- 4 sume power 4 4 The efficiency of ot Ignition wires 4 cannot be determined b oy the thickness thickness thick- thick 4 t ness of the Insulation Especially 4 Is this true of secondary wires 44 4 4 The Insulation however should be 44 4 4 of or good quality Unnecessary 44 4 4 thickness of oC insulation Increases Increases- 4 4 the tho static capacity which Is undo undo- 44 4 4 f 4 F f ff f Nothing Is IK more exasperating 4 f than the persistent leaking leaking- of at a af f flange Joint on the manifold where 44 4 4 copper i Is used uee on the gasket The Tho 44 4 4 however n nearly arly always 4 4 can be remedied by cutting cutting- a 4 4 groove around the tho post with a cold 44 4 4 chisel and another around tho the hole 4 f In the flange e. e When the studs 4 4 which hold the thc manifold In place placere f 4 ire ere drawn up the gasket asket J JH Is com com- 4 f od and partially tills fills the tho 4 4 grooves sealing scaling the tho Joint 4 44 4 4 Most ost springs break because the tho 4 4 spring clips nr arc not kept tight 44 4 4 It I Is lv I a good id Idea en to Inspect t 3 and 4 44 4 the wrench occasionally to 44 4 4 these parts A few moments spent 44 4 4 doing this occasionally may forestall fore fore- ore 4 4 stall a broken spring and a i lot of 44 4 4 unnecessary n d delay la wh when n touring louring 4 4 X- X c 44 4 4 1 When n connecting th the carburetor 44 4 4 to tho the Intake manifold of the en- en 4 4 Ine It should not be bc necessary to 4 4 pull null the couplings In order to 4 4 bring them Into line If the piping 44 4 4 Is In good order It should go Into 4 44 4 place without difficulty If It does 44 4 4 not tho the difficulty may oft often n bo bore 4 4 t rectified re t h by altering th the po position lIo of or 4 t the carburetor on us its bracKet 4 Bringing ln the the- part Into line h by 4 main for force c Is very verv apt to strain 4 the lie Joints In the piping and cau cause e 44 4 4 leaks 4 t. t A Athe the car Have adjusted the I Ii in every possible way but cannot aga e It pro properly rh I have ha never ne drawn the oil out of ot it It nor have I used carbon oil all on It Would this make It engage easier casler While changing Rears gears it Is Impossible to release It It for when It takes hold so quickly It kills the power pow pow- er Please advise me how to to remedy lemed this evil n. n c C. The clutch should be thoroughly cleaned with kerosene This should be done clone carefully and a number of ot applications applications used In order to remove ev every rv particle partido of 0 foreign matter and all of I the old grease After Atter you OU arc are sure i that all parts are arc thoroughly cleaned then It should be given I en a bath of light i lubricating oil If this oil IB Is too heavy I land anti does not permit the clutch to engage engage en en- gage then It should be thinned with kerosene Tho clutch should not slip sip too much and on the other othor hand i It should not nol be too fierce When hen the proper mixture of ot kerosene and oil all Is I attained which gives cs tho ho best results I make a note of 0 this thin and repeat the I about 1000 operation eYer every I miles This will keep your our clutch In iii good condition and give i c good results Motoring Department The rhe Herald Herald- Republican Can a vibrating coil call be beI used in iii place of a toll coll I land and if It so how can It be done I. I W. W YI It Is not practical to u use UMe e an ordinary I vibrating coil coll In place of ot a I Ing Ing- coil coll The usual vibrating unit II la is used In connection with a battery The I type Is used with a magI mag mag- I neto noto In the latter case the tho current 1 generated Is much greater greate hence coil call 1 I capacity must be bo much greater Again l I the construction of ot the coils calls differs I The function of at the vibrator is to automatically automatically au au- Interrupt or make and I break the primary circuit to help holp In Induce Induce induce In- In duce the desired high voltage secondary second second- I nr ary current Where the mn magneto neto and andI I colt coil II Is used the inter- inter or circuit breaker on the ma magneto mag mag- noto neto accomplishes tho the make ml and break of at tho primary and accordingly according elimInates eliminates elim elim- tho the use uso of at the coil coll vibrator It will also bo be found that the condenser condenser con con- ocon- ocon denser connections are different in the two coils colls In the vibrating coil coll no I condenser connections appear since tho the terminals are within and across the vibrator In th the coil coll one condenser terminal appears outside This must be bo attached across tho the breaker In such a way that the condenser condenser con oon- denser action may mRY be obtained Even Evon though the tho vibrator ma may bo be cut on the vibrating coil coll and the tho desired condenser condenser con oon- denser and other connections made ItIs itis it itis is not advisable or practical to overload a coil call which in no wa way was designed for tho the work Tho coil coll would undoubtedly undoubtedly undoubtedly edly be ruined very r quickly I f c jc Motoring De Department p Tho The Herald- Herald I On I jacked one ono Republican Republican Republican-On m my car up wheel and after placing the gear In n mesh turn turned d the wheel wheal to ascertain the amount of backlash or pIll play clear olear through to the motor as 88 measured on onlie the lie tire I found It to he be be a n. fraction traction less les than one eighth L tM of ot the wheel Two experienced looking on informed tie MIC that the car had very little little lit lit- tle play or backlash not more than nn any secondhand car and not more than some orne now new cars had I would be glad to I have havo your our opinion In the tho matter and if It the backlash nm may bo be remedied E. E. E V V. It Is not possible to eliminate all of at tho the backlash h as measured on the tire tiro While there ma may be sufficient backlash to permit one-eighth one turn of at the wheel heel this docs not Indicate that Immediate repairs are necessary After a car has been run a few thousand miles there Is bound to be bo more or less lost motion motion mo mo- tion develop eop In the various universal joints shafts and gears between n the tho wheel and motor A little play pIa lay at each connection whon when added added together amounts to considerable It IB Js hardly economical or advisable to replace all these parts In order to eliminate te all tho the accumulated lost motion In new cars can tho the accumulated amount of ot pIa play allowed al- al lowed approximates one Inch as meas meas- measured meas- meas on tho the tire In some somo Instances it itIs itis is 18 as much as two tt Inches It Is ie possible possible possible ble that you ou will Ul find Ind the major portion portion portion por por- tion of or this lost motion at one or two points wh where re if It adjustments adjustments or re replacements replacements re- re placements are made mule the amount of ot I lo lost ost t motion may bo considerably re re- re f JC c t Motoring Department The Herald Herald- Republican Will you please explain how a ro row Ve lye C can tell whether each spark j plus In a four cylinder car Is sparkly properly Also please explain ex how a novice no can determine whether each cylinder cUnder is working properly F. F. F J J. J L J. M This can be determined by cuRing tho the plu plugs s In succession This ma may l lie De e done with an ordinary screw screw- driver Of 0 course ones one's car must be somewhat trained to the sound of at the motor In order to detect a slight miss If It you ou care caro to take the plugs out of ot the cylinders you can determine b by observation ob observation ob- ob serration whether each plug is sparkIng sparkIng spark- spark Ing lug or not Unless the spark gap IB la enlarged ed when you OU do this you OU cannot bo be certain as to the true tru condition atthe of at the porcelains porcelain k It kUnder Under atmospheric pressure the current current current cur cur- rent will Jump a sma small I spark pap gap ap a and apparently be bo all right but when the current Is forced to Jump tho the gap under the tho of compression It will 1 find a a. short circuit In the tho porcelain If It possible If It the tho porcelain Is cracked or otherwise defective detective a n leakage of ot t current at this point will effect a Do eo weak spark at the plug points and of at course a n miss Then again the c current will short circuit through the accumulated carbon on the porcelain between bet the center rod of at the plug plug- and tho the base e. This of ot course ml may be removed by y cleaning Before expecting each cylinder clInder t to fire properly you OU must determine whether lire each each cylinder has gool good compression You can n hardly expect expect the motor no to fire regularly If f compression Is not Rood good |