Evening Star Newspaper, June 20, 1926, Page 68

6 * CHECK ON GARBON FOUND BY EXPERTS Tests at Mellon Institute in Pittsburgh Shed New Light on Problem. New light on the prevention of car- bon in the internal combustion engine has been obtained by experts of the Mellon Institute of Industrial Re- search at the University of Pittsburgh. High operating temperature and the use of highly volatile fuel and a. lubri cating oil that rel vols and free from carbon residue tend to reduce carbon series of tests ehowed These tests have been carried out during 18 months. The methods of making the tests and t tained were des C. J. Livingstone and W the Institute at the Summer meeting of the Society of Automotive Engi- neers Tests were made with engine runs at different temperatures, with differ ent fuels ranging from natural g of con is ant automobile lubricating oil. ing two each derived from Penn nia, Mid-Continent and Pacitic Cy crude petroleums. The results show t operating tempera and held constant th tendency to decr carbon. This indica respect for a very non-volat »sene, there is a shar mount of deposit difference in quantity deposit from different fuels is small when the fuel- air mixture is lean is greater when the mixture is rich. The amount of carbon deposit in- creases as less volatile lubricating oil and ofl containing more carbon- resi- due when distilled is employed. Under like conditions of test, the three types of oil used showed equal amounts of crankcase dilution. GETTING OUT OF MUD. Setting Emergency Brakes Helps| at as the N\L'{nfl! reased | [ nite | the deposit of Resistance Problem. | the When stuck in mud, plest plan is to the emergency brakes so as to just bind the wheels & bit This offers each wheel enough he power dashes el to the ate each one gradually rather than be diverted by the differential entirely to one This is a good tip to recall dur- avy rain 10 miles from the | at John Smith THE SUNDAY STAR, WASHINGTON, ¥. U, JUNE 20, and His Car BY FREDERICK C. RUSSELL John Smith is a character whom every motorist should welcome. He is mot selfish; rather he is a motol have exploited, in an interesting way 1g martyr, a chap willing and glad to his experiences for the benefit of the other 20,000,000 or more members of the motor clan. No. 155—Servicing the Body. sight of Smith beaming with faction as he came out of th ice station, minus his_car, wa something to puzzle over. Most own- ers who leave their cars in the shop re in the depths of despalr. “Well, my service troubles are at an end,” he explained. “I've declded to have the car serviced regularly by those who are in a position to know something about it. The charge is reasonable. The idea is lozical.” “That’s a sensible step,” 1 agres No wonder you looked pleased. N days motorists use their c tensively it is all they can do to keep things in shipshape around the without going through the cha service routine every few weeks. All that is off your mind now and you are going to reap big rewards. Only, what are you going to do about the body?”" “Why, I'll polish it as usual, use a vacuum cleaner on it occasionally, clean the windows and rub the spots off_the upholstery,” he replied. “The body’s the simplest part of the ca That furnished an excellent star ing point for a complete reversal of his ideas regarding body care. He never had considered the necessity of servicing the body. I went on to explain the details: Bodies Are Mechanical. ‘“Modern automobile bodies, clally closed jobs, are more mec! cal than you imagine. They ser espe- joints and many other things that can’t be taken care of by polishing and cleaning. You are very particu- lar to keep the chassis quiet, yet a great deal of noise originates in the body. It needs meechanical first aid and greasing the same as the chassis. “Perhaps the most important point is to keep the body bolts tight. These are the bolts that hold the body of the car to the frame. You can reach them at one end by raising the seat cushions and, sometimes, under the mat in the rear compartment. The other ends are reached inside the frame channels underneath the car. you have the car up asing rack, I would advise tightening these with a socket wrench, And it is a good plan to ofl the bolts their upper ends as a precaution against noises from rust. The most mechanical part of the body is the typleal door. It has hinges, a double strike, a catch, han- dles, lock and window-lifting appa ratus. All these must be inspected and kept in good working or: ot course you can have tended to at the service it seems to me that vou were going to overlook them entirely. th all the chassis work off your W hand: main road. however, I would suggest serv Overland Six sales break all records icing the body yourself. IKeep a screwdriver handy and tighten the various screws that you see around the doors whenever you think they are loose. Be careful and don't tighien anything just for the sake of tighten- ing. Remember tnat these WS are turning into wood and that if they are turned too much they may not hold as well as when you think sre loose. In some cheap cars screws are actuaily driven in ave time in assembling. If you start tightening screws in such cars. ou may.get into trouble. “The door strikes are the plates on which the catches hit when you close the door. In most closed cars there are two to each plate—a sort of safety device, It the door doesn't close tightly at least it will hold on the first strike and not swing open. These strikes will wear much longer if lubricated a little with vaseline. Try not to overdo it, for it is easy to soil one's clothing as one brushes against the strikes on entering the car. “About every year or so T would take the door locks out, clean and lubricate them. If you happen to forget such service at least make haste to do the job whenever a door handle seeme to turn hard. That is a sign that the mechanism of the lock needs lubricant. Loosening Window Lifter. “When a window lifter works stiffty do not be too hasty to lubricate it. Sometimes by working the win dow all the way up and down a few times slowly the machanism will ease up. Most manufacturers advise against lubricating this part, but they are thinking about the mess the aver- age owner might make of the up- holstery and the glass if he started to shoot oil into the window frame. Lubricant would be excellent for the lifters occasionally, provided you do the job carefully and do not overdo it to a point where the windows work so easily that they will drop down of their own accord when one is driving over rough roads. The hinges of the hood need oiling now and again and, of course, the hinges of the doors require attention, Don't forget the hood clamps. Often ngs which will produce if not lubricated you or any other sody joints come loose, but t you can do to prevent it. Summed up, it’s a mat ter of keeping everytl an at tend to in flrst-class orde: at saves the hody of the body. Windshields are a case in point. These are anchored to the body and should be kept tight. One loose thing leads to another.” Next week, No. Borrowed Ideas STUDY OF TRANSPORT BY MOTOR PLANNED Bus and Truck Committee Will Ap- pear Before Interstate Com- merce Commission. Appointment of & representative committes of chief executives from five motor truck and bus companles to appear before the Interstate Com- merce Commission and present data pertinent to the commission’s survey of motor transport has been an- nounced by President Charles Clifton of the Natlonal Automobilo Chamber of Commerce. This group consists of A. F. Brosseau, chairman; Windsor T. White, 4. A. Ritchle, Alfred H. Swayne and Alexander Legg. In announcing these appointments, President Clifton stated: “This interest of the Interstate Commerce Commission in motor trans- port marks the general recognition of the economic importance of the com- mercifal vehicle. Shippers for a num- ber of years have been finding out that motor transport gave them a special kind of service, particularly in regard to prompt delivery, which was not otherwise available. Because commercial transport, however, is made up of a large number of private- Iy owned units, students of transpor- tation have been slow to realize the extent of this movement. “With the best transportation minds of the country turning their attention to this service, it seems ap. parent that the use of commercial units will increase rapidly. There are now 2,500,000 commercial vehicles in the country. While a large propor- tion of these are light-duty vehicles, there has been a steady march for- ward in the construction of busses and heavier type units during the past 12 months.’ BALLOON TIRE RULES. Thin Patches for Tubes, and Low- Pressure Air Gauge, Urged. In patching the tube of the balloon tire do not allow repair men to make the patch too thick. This type of tive is balanced very carefully so as to prevent front-wheel wobble or shim- my. The tube used is actually thinner than those used in the conventional cord. A patch thus makes more of a difference in the weight distribution. v use the new-style, low-pr re gauge 8o s to know accu- what air pressure is being | Fifteen to thirty pounds is full balloon type. SR Cushions Need Watching. Much uncomfortable riding is ; seats not being in correct position. Rough roads often throw the rear cushion out of place when no one is sitting on it, the matter passing unnoticed. Retail deliveries during the month of May were the greatest in the history of the Overland Six. And now, in the first days of June, sales are again breaking vecords and forging ahead with increased rapidity. spectacular performance olthhurlu,wu&lleu,re- ponsible for this tremendous sales success. Over 100,000 Overland Sixes are now in use. And sales are multiplying st the rate of over 2000 every week. Surely no car could hold this pinnacle place in public favor . . . unless sheer merit put it there. What To Expect From This The Overland Six is a car of tremendous power . . . a car that World-Famous Six T925—PART 3% NEW ZEALAND TRUCKS CUT INTO RAIL EARNINGS Both Local and Through Freight Handled on Routes From 15 to 125 Miles Long. Passenger revenues of New Zealand railways are said to be much affected by the competition of privately-owned motor services operating on parallel routes, according to consular advices to the United States Department of Commerce from Wellington, New Zea- land. In the neighborhood of Wellington alone, it is pointed out, some 39 cars are running on routes from 15 to 1 miles in length, the main service be- ing from Welllngton to Wanganui The report states that, ostensibly catering to intertown traffic, it actu- ally does a little more than one-fifth iInterior traffic as against four-fiths through traffic. The quicker service and cheaper rates charged, added to the fact that connections with other bus lines are convenlently made, have diverted traf- fic from the railway, aocording to the official communique. WATER HURTS WHEELS. Turning Hose on Even Good Fin- ish Likely to Chip Paint. One of the early rules in the busi- nesa of preserving the finish on auto- mobiles was to keep the hose off the hood. A direct force of water upon this most conspicuous part of the car was frowned upon. Motorists acted upon the tip and have saved many a dollar, but the time has come to warn against ap plying the hose to the wheels. Many cars do not carry as carefully painted wheels as formerly, and a ‘“hard wash” {s not good even for the best painted wheels. Chipping is a very prevalent trouble in wheel finish, with force of water playing a conspicuous part in making the wheels look #habby. 0il Cleans Auto Top. All the cleaning the top of a car needs is a brisk rubbing with a slight- ly oily rag. Never use a brush, since this chips the top and makes it po- rous. The ofl treatment not only cle: but preserves and makes the top more efficient as a shedder of water. To prevent collection of dust, of course, the top should be rubbed with a clean, dry rag after being cleaned with ofl. RIMS Rundlett Rim Co. 1336 14th St. N.W. Be prepared for a dig surprise when you ukv yowflrnnt_h an Overland Six. A brand new kind of motoring experience awaits you . .. it's bound to change your whole idea of motor car values. Full 40-brake horsepower is delivered in a straight line from its Jow swung engine through to the rear-axle shaft. This big sturdy Six will out-pull, out-run and out-perform any- thing else of its size, or weight, or price-class. 1t is & car of exceptional comfort. The big, broad doors are 32% inches wide. You can get in or out with the utmost ease. Seats are wide, luxuriously comfortable. There is more cubie feet of inside space than in any car of this price . . . ‘with plenty STOP FOR PUMP LEAKS. Precaution Against Turning Pack- ing Nuts Too Far. ‘When turning packing nuts at the ends of the water pump shaft to stop leakage care should be exercised not to overdo it. 'The less a nut is turned to stop the escaping water, the better, and the more effective this method will be. If the motorist turns the nuts too far each time he will hasten the time when it will be necessary to use new pi Cuba to Build Roads. Cuba is going in for The government is planning to build z central highway the entire length of | the island, with branch roads to each Plan for Transpor province. | German railroads are con | the adoption of motor bus a L {truck transport, according of | Geheimr: Otto Kopck: is good roads BUSSES FOR GERMANY. Railroads Considering Adopting dering mator Hery A is a heavy buyer 1 ade passenger automob and trucks. During April y car importation figures wer American machines and 74 of pean make. Truck States numbered 4 ported from Argentina American-r Year [rom Joday at will your Carbe worth Then? r inTwoYears? QOr in FIVE ? These vital questions create no worry in the minds of Dodge Brothers owners. 8 Dupont Circle 2819 M St. N. W. I Six, eight and even ten years of faithful service—with mileage running well into six figures—is not an uncommon record for Dodge Brothers Motor Car. In fact, Brothers have built are still in service—an astonishing record, when you think of it—~and ample justification for Dodge Brothers well known slogan—Long Life! 90% of all the cars Dodge New Car Prices Touring Car.......$795 Coupe ....amnasmen-$845 Roadster ..........$795 Sedan ....q .z ..$895 F. O. B. Detroit # See the Dodge Steel Body on Display in Our Salesroom SEMMES MOTOR CO. RAPHAEL SEMMES, President 613 G St. N'W. 1707 14th St. N.W. 1424 Florida Ave. N.E. Main 6660—Night Phone, Main 1943 0DGE BROTHERS MOTOR CARS - Dhe f Excess Excess weight in motor. trucks is expensive. It increases the purchase price and it costs as much to carry as an equal weight of pay load. High Cost Weight will give you the thrilling performance of 55 miles an hour when- ever you want it. That will pick up in high gear from 5 to 40 miles an hour 21 seconds. - It is the first closed car that ever took the famous Sierra Grade, at San Jose, California, on high. ‘This is average performance , , o in the hands of average owners o the kind you can expect when you drive this car. Its cost is even greater, because it must be carried all the time. Graham Brothers trucks have'a larger pro- portion of pay load to chassis weight than is usually available in their respective capaci- ties. Careful buyers are giving this due recognition, as their marked preference foe Graham Brothers trucks indicates. of room for five full-size passengers. Room to stretch your legs without feeling cramped or crowded. Nothing has been spared to make this car a positive comfort- revelation. Owners accustomed to more expensive cars tell us this is true. An Artist Created It The distinguished, smart-looking Overland Six you see in the fllustration is not a chance result. . An artist created it. Every line, every curve and contour is the result of painstaking craftsmanship and study. Frankly, we took the 18 best cars of America and Europe and combined their salient features in this new-type Overland Six. i Built by the largest exclusive truck makers It is a strikingly beautiful au bile. 1: julflcetoyoyuru!f, see thi:o:::ndefiu! car. in the world—powered by Dodge Brothers e e dependable engine—these trucks are capable OVERLAND SIX SEDAN of an exceptional amount of profitable work $ 9 3 5 The new WILLYS FINANCE over a long period of life. i iy e s s 1-Ton Chassis (G-BOY) $936 1%2-Ton Chassis . . $1,305 All prices f. 0. b. In:’l:zh‘:l'c .'.‘".':7' ll;c lowest credit-cost in the lmhun-y.4 MBM Low Chassis . $1,355 WARDMAN MOTORS, Inc. Gt oliee. 1726 Conn. Ave. England Motor Co. Salesrooms—1526 14th St. N.W.—Maintenance Potomac 5600 to 5610 Semmes Motor Company RAPHAEL SEMMES, President 613 G St. N.W. 1707 14th St. N.W. 1424 Florida Ave. N.E. Main 6660—Night Phone, Main 1943 RAHAM BROTHERS . TRUCK SOLD BY DODGE BROTHERS 8 Dupont Circle 2819 M St. N.W, f Branch Salesroom 10th and H Sts. N.E. Used Cars [ 1515 14th St. N.W. 3110 M St. N.W. Mar-Dis Motor Co. Mt. Rainier, Md. DEALERS EVERYWHERE