Show MOTORING MOTORING PROBLEMS jl ILLIA STEWART JR JIL president W of the Stewart Automobile company company company com com- pany of ot New York and a leading authority on construction upkeep and operation of ot automobiles gives helpful help help- ful tul answers to motorists In o cr every Sunday Sunda Sun Sun- da day issue of ot The Herald If lC In a n quandary over operations of or your car address your Que questions to Motoring Department The Herald- Herald Republican and Mr Ir Stewart will give Ive his expert all advice In the tho following Sunday Sunday Sun Sun- day Issue of ot Tho The Herald Motoring Department The Tho herald herald- The Republican The front wheels wheel of or my car aro are becoming loose and noisy How can I tell whether the tho wear Is In the or tho the king ICing pin T T. C. C Jack up wheel and drive e a n. wooden woollen wedge between steering knuckle and ond car axle This will hold tho king pin and knuckle so 50 that the they cannot move Shake wheel and an any looseness of ot wheel bearing will wm bo be evident e Tighten the bearings 8 by means menns of ot the adjusting screw Then remove wedge and shake shako wheel again Any looseness looseness loose loose- ness around kin king king- kingpin Pin m may y be bc readily felt fell If It very bad bad replace king 1 pin Motoring Department Tho Herald Herald- Republican My My car d does not run ran smoothly but jerks irregularly PIe Please LSe give me mo some Idea how bow to go 10 to work to locate the tho trouble R R. O. O K Tho The trouble is probably duo to rich mixture causing the engino engine to miss explosion If It tho to same mo cylinder r misses miss miss- es explosions explosions right along it will be bo an 1 ignition trouble or loss of at compression Black smoke or pungent odor from the tho exhaust will Indicate rich mixture Crank the engine to test compression and then trace out tho the ignition system system eye eye- tem tern until tho the fault Is discovered Motoring Department Tho The IIer Herald Herald- d- d Republican I I do not like to use emery or In grinding the valves for tor fear T that some Ome of ot it will got Qt Into the cylinder Is there nn any other substance sub- sub stance I can use which will not doso do doso so much harm 7 J. J O. O L L. With proper carts care there is III very little dan dani danger er of emery getting Into the cylinder cylinder cyl cyl- inder but if It you yon wish h to use something something some somo- thing else try ground round Sl glass aa I It does docs not cut so rapidly but Is safe as os soon as it breaks bronks up and is 1 practically harmless in to case some of ot It gets sets into the cylinder Motoring Department The Tho Herald Herald- Republican I I have been told to let inthe in inthe the tho clutch slowly when starting butto but butto butto to do so rapidly for tor the other speeds Also to let lot in clutch slowly while re reducing re- re during speed Please let roe me know why this Is necessary B. B S. S The clutch is M engaged od gently when starting since it IB is difficult to move a a. acar acar car from standstill and aud one does not I want to break brenk the gC- gC sears gears or other parts by letting In tho the clutch suddenly Tho The car Is Js then speeded tip up so 80 that it willbo will willbo willbe bo be going at nt th the rate of second speed and not lose 1090 tho the momentum Tho The same rule rulo holds for tor tho the other forward speeds speed Theoretically tho the car should be going at nt tho the new speed before the gears are aro shifted so that they will not grind but mesh smoothly In slowIng slowIng slow slow- Ing down from a higher her to a a. lower lowe r speed the clutch Is en engaged aged when th tho thor thoc e c car r has lost momentum and ond Is movIng ing at nt the new speed otherwise it i t will stop atop too suddenly and make I It t unpleasant for tor the passengers Motoring Department Tho The Herald Herald- Republican RepUblican What What Is meant by the word ground on cn n tho the wiring diagrams for tor my car carl If It tho the rubber robber wires and wooden wheels wheals are arc no JI Q u. u el electricity how can the tho current reach the ground R R. i L L. The word ground in merely morely a technical technical tech tech- term terra borrowed from telegraphy Tho The current sent bent rr from m ono one station to another does not return over another wire but is sent into tho the earth eart ana anti so finds Its own wn way back On an au- au the current is 18 nm run into the tho frame and the cost of or so 80 many extra wires is caved I Motoring Department The Tho Herald- Herald Republican Republican My My ry friend has haa a gear car en cn the cooling system and claims It is better than a centrifugal pump as it gives a 0 more positive drive to tho the wa wa- ter Please tell which Is better and give IYe relative advantages and disadvantages van vantages of ot each aeh The gear pump Is good If It one could bo be assured that it would never fall taU to revolve but unfortunately shafts break k and pumps stop r revolving When Whon this happens the tho gear car pump leeks blocks the flow of ot water The rhe cen cen- pump In case of ot tallu failure ro offers offers of of- of fers no obstruction and the water circulates cir clr- b by the tho thermo siphon prin ciple To 10 insure such a 0 circulation with a n. gear pump I Ir t I I necessary to remove tho the cover of the tho pump a take out the gear bear car losing all the tho water In the tho process No Ne N change Is nece necessary ry with a centrifugal pump Keep the radiator filled and run on high gear as much as possible until repairs can enn be bo made I. I Motoring Department Department The Tho Herald- Herald Republican Republican How How can I test out my magneto mac My engine runs on battery but refue refuses refuges J to run on ma magneto neto I 1 have havo havea a high tension magneto and there is no service station near where I live n 11 D. D IL Disconnect wire from magneto armature to switch Run Hun engine en en- en gine Ine on battery batter or have some same ono one spin it for you Ground a wire or screw driver lad and touch other end to binds bind ing 1 post ost on magneto neto armature touching it and drawing it away If It no spark appears the circuit breaker brenker or the armature windings arc aro at fault If It good gold spark IB It shown short circuit cir cir- I cult ce collector lector ring brush If It spark is 18 good trace current to ends of or distributor distributor dis dis- I wires and spark plugs If It no spark appears at nt tho the collector ring brush secondary winding may be burned out or r short circuited Be sure nuro I that distributor points are Bre all right and ond that no dust cr er oil has hal accumulated I on It T Motoring Department The Herald Herald- Kind v Kind y state three causes cou s that will mako make an nn work Improperly What will be tho the effect on an exhaust that does doc not I I seat properly Would it bo lIo possible for Cor an exhaust volvo valve to bo be automatic J. J B B. Some reasons why an exhaust valve will not work properly are arc as follows follows- valve lifter litter out of adjustment spring brokon broken stem bent so 80 that it sticks open ODen head warped face tace and seat pitted pitted pitted pit pit- ted burned or caked with carbon If It valve does not seat t. tho the compression com eom- will l leak ak around valve an and d mo most t of or the power vcr from that cylinder will be bo w wasted An exhaust valve c can cn n never be automatic nut auto matic as It opens open against a 0 heavy pressure at ot tho end of ot the power stroke This necessitates a 0 positively driven mechanism a ns as you can readily see sec Motoring Department Herald lican-I lican lican I am having trouble with my br battery A year ago It was filled tilled up and broke ono one Jar so soI I had hall it refilled and I replaced and now it doesn't seem to j I take tC any charge 1 I 1 put it on the car again and it tested four v volts but wont won't test anything with the tho hydrometer ay- ay rinse ringo tester te When hen driving at nt a 0 rate of ot twenty Venty to twenty five miles mUes It only shows shown five amperes flowing into the battery The lights arc no brighter I with the the battery than just tho use of the generator and the lights seem to flicker What must I do Throw v away 4 this battery or can It bo be recharged I have a 1914 model T 79 Overland O What battery must I have for tor my starter and lights Do not attempt t to td Use uso the battery until the tho electrolyte Is corrected corrected as the tho batt battery or mn may be bo easily ruin ruined ell It should bo be placed on charge for several I hours and the tho strength tested tented each hour Vl When en gravity no lon longer er ris rises s during the tho three ho hours rs the thc acid should be brought t up to 1 1275 If It It hi gives cs no test with hydrometer after five hours pour alt It out ut and fill till with electrolyte at 1275 It If tho the generator does not keen It char charged ed or it docs does not hold Its charge for tor a a. reasonable time tho the system should be inspected b by an nn ex ex- ex pert Tho battery battory should at least have havo a Do capacity of 10 ampere ampero hours rc Motoring Department Horald IIo I 1 I have a 0 1914 model Overland which starts alter after the tho starter self has 1188 worked for tor nearly five I also have hav to prime the Hie motor and help tho starter self-starter by cranking It This Is only In the morning and during durIng- the day It starts right off ott without any trouble Will VIII you t un tell ll me what causes this and how It ft can be bo remedied 7 Also Aleo after setting the gears Into low and opening the throttle about one half t open and 1 releasing the clutch the tho en engIne engino engino en- en gino Ine Is stalled sUllied Kindly 1 answer these theao questions qU in your next issue D. D T. T Tho The trouble In Jn the tho morning is probably probably probably ably duo due to the motor being too co coso cold so 50 that tho the ga gasoline is not properly vaporized It Is la possible that worn piston rings rings' have something to do with II It 11 It as ns' tho the suction would bo be poor and tho motor could not draw drow in a 0 very strong mixture New rings or a slightly slight slight- ly y heavier heavier oil would remedy that After ACtor he e engine warms up it partly overcomes over over- comes these troubles If It you have to help tho the starter self It t IH le evident that the battery is weak Stalling of tho the engine may bo be duo due to weak ivcak spark or r lean mixture and also hat that you do not advance the tho spark fur tur enough nough |