Evening Star Newspaper, April 10, 1921, Page 56

QUESTIONS AND ANSWERS FOR THE AUTOMOBILISTS Answers to Last Week's Questions. 1. There are a number of external causes for an automobile catchi.x fire, such as holding an open flame 100 mear the gasoline tank, fecd lines or carburetor, but the usual cause.| due to a defect in engine operation. is that of a backfire or explosion oc- curring during an inlet stroke of one of the pistons. when the inle is open to admit a charge of cylinder firing at such a time ignite gas in both carburctor mixing chamber and inlet manifold. would also ignite gasoline near carburetor. The trouble is due ma 1y to wrong ignition timing or cross- ed spark plug wires. 2. H s of a semi-fl Iy a protect cking nuts and a an ornamental finish to the They are not a means of the wheels to axle shafts, a times supposed 3. One reason why newly instailed ating rear curing s some- the spring different set than the new leaves. Springs which have been in use should be reset before mew leaves are installed. A crheated and overexpand- ing or piston in an engine be known until the engine has stopped runnins for > time. Both | bearings and pistons in this condi- tion have been krown to sive service vontinuous ru have | so th revolved newly put is ins 5. Although the car require very attention is average motorist. The a matter of fact. and e is expected of them— denly collapse. Wood when exposed to the elem nd should be protected the same as metal Surfaces, and especially joints of wood wheels should be coated with paint. | enamel and this coating | renewed possibly more often than the body. When wheels are knicked or scratched these flaws should immedi- | ately be filled or covered. This ap- plies especially to joints or spoke ends | which deteriorate more rapidiy, and if | neglected become e. weakening the | wheel. A spoke which is badly chipped | or cracked should replaced. When | inspecting the wheel do not overlook the | hub flange bolts. A tighteninz of these | bolts When necessary may save ex- pense and prevent a serious accident | to the car. 6. A growl developing in the dif- ferentials when the car is traveling on | level road or down hill, but which does not occur when going up hill. may caused by wrong adjustment or su trouble as the propeller shaft bolt be- ing broken and permitting pinion gear | and shaft to move forward or back-| ward. Proper adjustment would not| allow a noise to develop under these | conditions only. 7. The wiring system for auto. on three-fourths of the cars system the negative terminal of astorage battery or source of current is connected to lamps by means of a single wire and switches, the current| returning to positive battery terminal by means of the metal frame of the; car to which the positive terminals of | Jamps and battery are connected. The wire leading to the lamps is, of course, insulated from the frame. S. Magnetos are made to revolve in both the same direction as the engine and also the opposite direction, called clockwise and counter-clockwise. The direction of revolution of each particu- lar magmeto is indicated by an arrow at the drive end. 3. Many of the lighter cars employ aluminum pistons, the makers claiming that the lighter weight piston causes V'as vibration and consequently less friction and wear on bearings and wrist- pins. Owing to the fact that the piston of this metal expands more than the cast-iron piston. the former must be fitted less tightly in the cylinder than the latter. 10. Vaporization is the transforming of gasoline into a vapor. while carbure- tion is the mixing of this vapor with air suitable for combustion within the en- gine. Vaporization is really one of the functions of carburetion, as both trans- forming of gasoline into vapor and mix- ing it with air of the right proportions are done in one operation in the car- buretor, together with the drawing of the mixture into the cylinder on suc- tion stroke of a piston. This Week's Questions. 1. What causes vibration in an engine and why is it more noticeable at_certain speeds? 2. How can oil be tested to ascer- tain if it contains impurities of a solid nature? 3. Why should not a magneto be made to operate immediately after it has been cleaned with gasoline? 4. How can small parts rusted to- gether be separated without injury? 5. Why is it important to maintain the proper amount of clearance be- A. A. A. EMBLEMS AGAIN ON WHITE HOUSE CARS President Member of Marion County Auto Association. Enows Road Problem. The White House automobiles have new A. A. A. radiator emblems. Presi- | dent Harding is a member of Marion County Automobile Associa- | tion, which is a part of the Ohio State Automobile Association, that is affili-| ated with the American Automobile | Association. At the direction of David | Jameson, president of the national body. seconded by F. F. Bentley, head of the Ohio association. the A. A. A.| headquarters here had special em-| blems made for the official govern-| mental cars. showing that the car user believed in locality, state, and nationwide motoring co-operation. Having made numerous road trips between Washington and Marion, most of the route being over the “Old National road,” President Harding has repeatedly come in contact with actual highway conditions. and in consequence has given the subject no small amount of attention One point which he has always em- phasized has had to do with proper maintenance after construction, and this opinion -has been expressed by him again and again. There is a be- lief that in any future federa! help to the states in highways the “head of the nation” will insist upon a mainte- nance provision which shall be defl- nitely expr T T 2 1.B. Kendall Co. 485 Missouri Ave. NW, h‘lp Main 434 Headquarters for Automobile Springs Aato Top Coverings Aatomobile Tools Iron, Steel and Heavy Hardware Cap Screws and e { & million to the thousand miles. | more readily | induced b tween valve stems and pushrods or tappets? 6. Why is ine smaller the aluminum piston than a cast iron are intended to fit ized cylinder? 7. What troubles not due to faulty electric system may cause fuses to burn out? X, What part of the steering tem is the main factor in hard nz, resulting from lack of lubric: 4 What is the usual caus moisture or n the distributer cover | or housing. and what may be the re- sult of the presence of this oil or moisture? 10. What is the standard size of an automobile tread? (Copyright, 1 Thompson Feature Service.) I LU e GOOD ROADS DELEGATE. G. A. Ricker of This City Honored by Gov. Miller. arge A. Ricker, Washington man- of the Portland Cement A n. h been appointed by han Miller of New York a delegate to the ninth annual conven- tion of the United States Good Roads formerly th first deputy ¥ en K state highway commissio this city for tived i . Miller is reported to be par- arly interested in the attempt being mad to promote good road Luilding in the southern states. and this. per «ceounts for the fact inting a delegate for boro gathering from the Na- Capital ‘| TIRE FATIGUE FURNISHES ARGUMENT FOR QUALITY Travel for 1,000 Miles Results in Million Flexes, Which Are Producers of Heat. Did you ever hear of tire fatigue? A 30x31p tire is_approximately inches in circumference and must | make 667 revolutions to the mile. In h revolution the entire carcass or bonds twice—once down and This means 1.334 flexations : and over one and one- ion flexings per thousand third mi miles run. 110_inches in circum- 571 complete turns to the mile. h two flexes of the carcass to the revolution we have 1.142 to the mile and again more than This friction creates heat in an _amount asily computed in turns of horse- rin the testing laboratory. When it is considered that a thou- sand miles is a very small distance 1 the life of the present day auto- obile tire. the Miller contention of pow the economy of using standard makes able to withstand the strain of these fifteen to twenty million flexings is understood. The heat this continued bending serves to literally tear down the fabric plies of the carcass as well as to re- tard the car It is a rule well recognized by tire manufacturers that the softer a tire is run the more the carcass bends and the greater the fatigue of the tire. Resistance, too, is increased with underinflation. as the motorist may easily ascertain by pushing his own car. “A tire which runs soft is not only less resilient, but more costly in gas and oil consumption. - TRADE NOTES. National demonstration week will be observed by the local Paige dealer, the York-Parkhurst Motor Company, 14th and Swann streets northwest, during the coming week,“Al 4to9, inclusive. Demonstrations on any of the Paige models will be given upon request. The salesrooms wiil be kept open evenings during this week. Bowie McPherson, 627 H street northwest, local distributors for the Harlev-Davidson motor cveles, will hold their spring opening April 4 to 9. The showrooms will be kept open evenings during this week, and on Sunday, April 10, the local moto= cyclists will tour to Boonshoro, Mé P. F. Tippett, well known southern Maryland automobile man, has been named distributor for the Elcar in Washington, Maryland and Virginia. A modern service and salesroom is in course of construction at 712 E street southeast and will he ready for occupancy about April 15. SR E—— More than 75 per cent of the rail- ways of Argentina are owned and operateq by British companies. Dollar for Dollar i | | | | THE SUNDAY. STAR, WASHINGTON, D.. C, APRIL 10, 1921—PART 3. SPECIAL NOTICE BEST TIRE BUY! GIVES YOU A WELL KNOWN TIRE FOR ONE DOLLAR. The biggest thing we ever did in our 28 years of tirc selling was the closing out of this factory stock of Non-Skid Tires at the price we paid. And When You Buy One Tire at Its Sale Price, We Sell You Its Mate for One Dollar 30x3 30x3! 32x3! 3lx4 Matching 812 14th St. 5 in.. 28.25 32x4 33x4 34x4 in..§19.25 5 in.. 2420 ines 3 in.. in. .85 3 Other sizes in proportion. TUBE SALE, TOO, the important values in Tubes. CHAS. E. MILLER, Inc. Over 28 Years in the Tire Business in Washington. 4 Doors Above H St. A SALE THAT values in the Tire Sale with equally HITIInE The price of $5.00 will thoroughly lubri- cate your car, tighten bolts and fenders and line up front wheels. BENNETT’S GARAGE Give Me a Trial and Be Convinced Storage Space Available Rear 2112 14th Street N.W. Phone North 2812 A. E. Bennett, formerly with Geo. C. Rice Auto Co. REPEAT THIS AFTER US SCRIPPS-BOOTH MOTOR CARS Six-Cylinder THE UTMOST IN LIGHT-WEIGHT SCRIPPS-BOOTH SALES CO. CONSTRUCTION Roadster Touring Coupe Sedan 1012 14th Street N.W. Phone Franklin 5831 - HE LEAST that can be said of the Overland Motor Car is that there is noth- ing better for the same money, and nothing to equal it for less. ' In business, health and happiness, the cost of doing without an Overland may easily be greater than the cost of owning one. A Its riding comfort is as superior as its economy. Overland Prices Have Been Redoced ‘The Time Payment Plan Is Very Easy G OoOOD INVESTMENT HARPER-OVERLAND CO., INC. 1128-30 Connecticut Ave. N.W. Telephone Franklin 4307 ta LT OO OO LU mo 5 e LINCOLN Experiences like this, multiplied many times, explain in . ¢ part, why Lincoln sales in February were double those of the preceding month and were re-doubled in March ] Sl €4 s NG RTRRS i Lincoln Motor Co. Detroit, Mich. Gentlemen:— I have owned several cars, all of them fine. I ¢ drove these cars nearly 300,000 miles and began f to think I knew something about automobiles. P When the Lincoln came out I did not need a new car but my sixteen-year-old son persuaded me to take a ride. After driving the Lincoln I told your distributor I should like to see the car more fully demonstrated. His salesman took me for a ride varying from three to seventy-six miles an hour. I went over the car inch by inch. It was so good that in three days I was the possessor of a Lincoln. ‘This car has been driven by me and my child- ren 3,700 miles. It has so many good features that I could write a long letter describing them. It is the easiest-riding, strongest, most depend- able automobile I have ever ridden in, and it gives me great satisfaction to tell you so. No money could buy this testimonial. Very sincerely, EDWARD S. HART Webster Grove, Mo. March 25,1921 ] THE BARTRAM MOTORS CO. 1204-8 New Hampshire Ave. Phone West 458 LELAND-BUILT ANDLER SIX s For Its Marvelous Motor N = [ 24 i A You Will Be Delighted With a Chandler Coupe With spring weather upon us and all out-doors calling to us, many want a car that provides all the comfort and ease of riding and protection from the passing shower or sharp breeze. - There is no more ideal car for every season than the Chandler coupe. On the hottest summer day it may be entirely open, and ¢n the coldest winter day as snug and cozy as can be. - Sells at a Price Unequaled The windows are automatically adjusted. The interior fittings are in dull silver finish. The heavily padded cushions are of such dimensions and so arranged as to add immeas- Mounted on the one standard Chandler chassis, it has all the finest characteristics of the highest priced cars, yet sells at a price unequaled. The body is splendidly built, roomy in its capacity, beautifully upholstered urably to your comfort in the car. You will in silk velour, and has a lustrous finish. be delighted with it. The Most Fairly Priced Fine Car Built Seven-Passenger Tomring Car, $1930 Four-Passenger Dispatch Car, $2010 Tum-?umn.:;!o-dsn: $1930 °'"rom-pm¢n¢¢r Roadster, $1930 Seven-Passenger Sedan, $3030 Four-Passenger Coupe, $2930 Limousine, (Prices J. o. b. Clevalond, Ohie) Cord Tires Standard Equipment WARRINGTON MOTOR CAR COMPANY 1800 14th Street Telephone North 9860 Gregg-Comphor Motor Co. Montgomery Garage Hamilton, Va. Rockville, Md. Belle Haven Garage A ORI