South Bend News-Times, Volume 37, Number 137, South Bend, St. Joseph County, 16 May 1920 — Page 28

ftf.VTlAY, MAY 1, 192t. THE SOUTH BfcND NEWS-TIMES

MOTORISTS PROBLEMS Solved for Readers of The News-Times By William H. Stewart, Jr.

Motor I)r irtmnt: I havo a 1319 I'lt;e car that I hav taken pool care of; hav kr-pt It well lubricated at all times arid ro ovf it carefully every week or bo. It runs fine and never nivos any trouble, exrept It rattlrs when runnlm; around 22 rr.llc-s an hour, h'ouncls llko a looso l,olt with washers JumpInsr up and down. Vhjn runnlr? at 2 0 or triow" or over 2T, It run." quietly. I have been trylr? to locate this trouble for weeks, but can't find anything lorse. A1m hive trouM with riht front fender. All bo!L 8em to bo tlsht, but It takes 5pf lis of rattiins that is very annoyin t?. I've heard It .-aid that you us? more fjas when your tank Is full than you do when you have five pallonn or fo In tank. Ts there any truth In euch a statement? C. (J. Ilattles are hard to locate unless you have some one ride with you who can move around on the ear and traro the raU! to its source. From th driver's F-at th noises are deceptive, perhaps when your engine turns ov r at a i rt.iin -peed th vibration of the h"-l or mud pan causes the noise. Th-n, airaln, you can often trace a bad rattle to iddeplay In the v-pidn- shackles. Take some m' h.mir with you and let him crawl about the car while In motion. It is an easy matter to locate the soure In this manner. The .piantltv of cioür.e in the tank does not affect the rate of cor.sumplion. Motor Department: T nm a regular subscriber and read with interest the motorist (iicr' column, riea.-e answer the following micst if n in your next is.-ue: I own a 1917 Chalmers rad.-t-r. Once or twice lately It failed t crank up in the mornir.ir. The battery is k.1 and iL sparked on all :-ix pluus. On one accasion the rr."ch;inlc took out the rark fdups arnl poured over each piston a mixture of and lubri cating oil and by this means the motor started. Thi morning I bad the same trouble, but the above remedy would not start it. The mechanic accidentally disconnected the sixth plot: from the roar and the motor started at fne turnover. Is it oos.-Ihlo that there is a fhort In

the connection of th sixth piup wire or do tho pistons leak oil and lose their compression? I thank you. IlI-:rjUIAIl SUKSCKIHEK. If your encrino runs all rteht after It is started there is no reason to suspect a short circuit in N'o. 6 wire which would materially affect startlnc. Ov-rprlrniii? the cylinders is worse than none at all, and this Is probably what happened on the second occasion. Some persons mix a special bottle of priminp; fluid made up of casollno an,l about 20 percent ether. This is a very volatile mixture and facilitates starting when the engine Is cold. No more than a teaspoonful should be used when primlnq" the cylinders. He' sure that your ignition supply is up to standard, as a weak spark always causes difficulty in starting. If the pistons pass oil you will have constant trouble with carbon and fouled Motor Department: Recently I purchased from an automobile supply house a set of six dry cells. I used, theso cells in my car anil they lasted only three days. I was told they were new and would last for several thousand miles. Everything In tho wirinp; seems to bo all riKht und they nro kept in a dry place. How can you account for this? Do you suppose there is some short circuit somewhere? Tho engine seemed to run all rieht on the batterlei when the cells wcro new. K. T. There may be no trouble with the wiring. It is possible that you wcro Kiven stalo cells. Purchasers should insist upon having these cells tested xtt the time of purchase. Tho store supply of dry cells Is not always fresh, and then, too, they depreciate very' rapidly, even though not in use. Without doubt the cells you purchased were practically dead when 3 ou obtained them. Motor Department: Does it make nny difference In replacing the TnapjH'ts on a rr.agT.eto as to how 1hy nro replaced, so loni? ns they have tho same polarity on the same side? I had to take mir off and now I am in doubt as to how to put them tack. I. M. lorn: as nil the north roles of joui rnaKnets aro together they will work all rieht. Try them together to find which poles repel. These I oles should all be on tho same side. )efor removing them another time mark them with a piece of chalk. Motor Department: Please explain how a timer works on an cni;lno when It Is advanced or retarded. Also, why It knocks on a liill and why it stops when spark is retarded. I x. The i'.rst purpose of a timer Is to cause a spark to occur Just as the piston passes over dead center. LeKlnninjc the power stroke. When the explosion occurs it forces the piston down rapidly. Tho next power stroke gets tho spark at the -ame time, but the rton is poinp s fast that It eloes not got tho explosion pressure until too far down. "We advance tho spark so that it will come down at dead center or -ven before it Tho explosion pressure Is advanced at the same time and presses on the piston near the top cf tho stroke, plvlns more rower. If we run a car up a hill the engine Is siowed down by the extra work and we must retard the spark. Otherwise we get tho explosion rressure on the piston com!n up, which makes a knocking sound or may even stop tha engine, Motor Department: Can you please tell me why racing autemoI ilea do not have starter or crank? A. j. Ilacing cars d!spo?e cf as much weight as possible. The starter la u luxury and unnecessary for the purpose. Undoubtedly you will find r11 mich cars equipped with a crank, clthouch It may not be In evidence! Motor Department: I have a 19 IS model Reo Six, seven-pasen-ler. It doesn't hive the power on hlll' as formerly, doesn't "pick up" ns it should; In slowing down for tad places, when you start off i

has a Jerk. I had It fixed but the Jerk Is back in a little while. Should one shift after slowing down for "holes". We have miserable roads. J. W. Perhaps the valves need grinding and the engine tuned up. Iss of compression In one or more cylinders, dirty spark plugs or breaker points would cause your trouble. Idkewlse, a little water In the carburetor. "When you slow down below lo miles per hour It is best to fhift gears. The transmission unit is designed espcially for such conditions. It is injurious to the engine and whole car to force the engine to fdrk up the load practically from a standstill. Motor Department: Would you kindly inform me of the timing of a Studebaker model 2"? I 1. Set number one piston at dead top center, then move flyv.hecl about 10 degrees. At this point the exhaust valve should close. Make sure that your valve clearance is right, then set the exhaust cam in position of just leaving the roller. On a "T" head engine the intake valve may be timed in a similar manner once you have determined the valve lead. Ordinarily the intake valve opens Immediately after exhaust closes. Motor Department: Tlease explain to me how to wire a Ford electric tail light on the one-wire system. I purchased a light which has two bulbs, one from magneto and one from dry cells. When car is running I want to light from mmneto and while standing from the dry cells. What I want to know is how I am Kolng to get a circuit from magneto to tail light with one wire. o. A. I'se a two-pole switch and connect a wire from the magneto plug to switch and from switch to rear lik'ht. which should be grounded on the frame or metal of chassis. This completes the circuit. In order to use the battery you should round the negative and run a wire from the postive to the other pole of the switch and from switch to other

socket of rear light The circuit

19 completed through the metal of j M

nit- . litirv-; i.-i. Motor Department: Please advise me how to take grease and oil spots off the tody and fenders of a car without Injuring the glossy finish. P. J. Rub a little lemon oil over the

spots and allow to stand over night. ; jj

i. nen jmusri wmi u ery tuii ri, preferably woollen or flannel. HKLPrUL. HINTS. Keep your carburetor properly adjusted to Insure gasoline economy. A rich mixture will overheat the engine and cause carbon in cylinder heads, besides losing power. A lean mixture will give losj of power and may set lire to tho carburetor.

To tesl for rich mixture open the air valve slightly, admitting more air. If the engine speeds up the mixture Is too rich. ('lose down tltrhtJy on spray nozzle or low-speed adjustm ent.

To test for lean mixture pull out the choke knob on dash a short distance. If engine speeds up the mixture is too lean and needs to have the low-speed adjustment opened blightly.

Having adjusted these to your satisfaction, throttle down engine and then epen throttle suddenly. Engine should pick up speed smoothly and rapidly and should not backfire at carburetor. If It backfires, the

mixture snouia be mane ricner irom j

hiKh-speed adjustment.

To test the adjustment on the road run the car a few blocks throttled down. When there is a clear space ahead open the accelerator smoothly and rapidly. The car should pick up speed rapidly and evenly and the engine should r.ot struggle fir give explosions at the carburetor or muflier.

GERMAISY DESIRES TRADE WITH CHINA

PEKIXf?, May U The Herman government has made advances for reestablishment of commercial and diplomatic relations with China. The German government is said on good authority to have assured China that notwithstanding her refusal to sign the peace treaty, Germany is willing to recognize all clauses in the treaty accerding privileges to China. On the other hand Germany indulges the hope that China will refrain from confiscating any German property in China.

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