Evening Star Newspaper, November 15, 1925, Page 86

CARBURETOR IS PROBLEM TO MOTOR CAR MAKERS Lnng-Range Touring Demands Adjust- ments by Auto Owner—Automatic Control Nearing Its Limits. - ULLMA! problems in car decign coms and go, xpected troubles develop and are solved, but the problem of carburetion continues ¢ motordem’s hi puzz'e vaffled automotive engineers car owners, larzely be- factors affecting carbure- tion will not sf out. ~ Frequent changes in engine design, increase in the number of cylinders, shifting of their arrangement, varyving grades zusoline, increased range of speed— a1l have contributed toward perpetuat. inz the carburetor as the car's chief enigma Much carburetion trouble has been ced to an excessive use of the ke manifold for operation of ac- cessories. The Intake manifold often poed tor a windshield wiper, a iling device, the vacyum tank, purifier or w primer. With val of these devices going at the same 1ime conciderable suction is di- vor from the carburétor se that An insufficient amount of gas is fed through the low cpeed jet e the enzine is 1dlinz or running slowly. Leaks Cause Trouble. Aside from the diversion of the suc- flon. used primarily for proper car- buretion, the situation may be com- vlicated further by a leaky connec- tion In one or more of these devices so that no adjustment of the carbu- retor could possibly compegsate for the condition. The car owne¥ is con- fronted by the sort of tréuble he would experfence with a manifold gasket leak Such extremes are bscoming rather freque and carburetion experts wha trying 1o overcome time- honored difficulties. such as popping hack in cold weather starting, are honins that motorists will refrain from addinz o the number of carburetor troubles. Many motorists nowadays drive so far in a sinzle day that the carburetor encounters Winter and Summer conditions without a change in the adjustments. Drivers also go from low grade to high test gasoline and then complain because their cars fail to pull steep grades. The cuar makers themselves are not out of the dark with respect to car buretion, although they are making rapid progress in that direction. A popular straight-eight model, recently put on the market, failed to run smoothly in high gear at low speed. Certain changes In the carburetors of these cars were made, but without the desired effect. The factory changed the intake manfolds. but still the un- even running continued. The trouble finally was traced to the valves and proper adjustment made. A number of engines of the six cylinder type are not fed properly. Several of the cylinders zet more than their share of fuel. while others are underfed. due to improper carburetion. Until the early part of this year one of the most highly regarded of Ameri- can cars had a habit of pepping or backfiring through the carburetor when running downhill or slowing down from high speed. 1t was a carhuretion problem, but it has been corrected Remedy Became Problem. Not long ago one of the chief diff enities in carburetion was to supply an axtra charge of gas at tHe moment of ation. Engines normally were h.and the carburetors were not d to make any compensation for this shoricoming. One of the lead- ing carburetor manufacturers, how- ever, devised what is known as an accelerating well, so called because it ‘built up a reserve of raw gasoline which was released and allowed to pass int® the mixing chamber through the high speed jet when the throttle was opened. It solved the acceleration problem. but was soon to become a problem’ in itself. Some one conceived the idea of the hot spoi,” and the trouble started. This allows the hot exhaust gasex to coms into direct contuct with the out- side of the intake manifold at some siratezic point w0 s (o preheat the gas on its to the cvlinders. It ix an evcellent idea and one that akes possible aquick warming up, economy and high speed. but. com hined with the accelerating well of @ cavhuretor, it causes bucking and jerk- 1 speeds of from 15 to 20 miles an hour. The engine gets too rich a wixture npon acceleration, and the remes ‘ies in rendering the accelerat- ine - | 1< effective and in making the carburetion uniform throughout the entire range of the engine's speed. Slight changes in engine design otten BY WILLIA New zest It hi as weld as canse the are DID YOU KNOW That ground cork is sometimes put into the gear lubrication by nnserupulous used car sharks in order to camouflage rasping noises? That in tightening up spark plngs care should he taken to tighten the fgnition wire connec- tions too? Just tightening the pliugs may loosen the connections. That you should never cross a small bridze while a motor truck is on it? Despite regulations, over- loaded trucks are quite the rule. The addition of the weight of your car may tax the capacity of the bridze. MR. MOTORIST Get away from the old e tell you they have learaed that they have ne lubricst. ing value. EBONITE was purposely made as the oerrect lubri- cant for the transmission and rear axles. Its cash- ioning substancs between the gears takes away the olash, the grind and wear. It Inbricates slways. Buy with your mimd made up. Demand EEONITE. Take mo substitute. At dealers in five-pound cans, and at serviee stations frem the EBONITE checker-beard pump_only. | EBONITE (iT's SHRELC Ot FOR TRANSGMICSION AND REAR LES YER ON OIL WORXS | i require complete revision of carbure- tion plans. Much, however, is being learned about carburetion. Many manufac- turers are discarding the idea of a smooth passageway for the incoming gases and are providing squared manifolds with dead ends that actually make the gas lively. One engine re- veals the exhaust manifold and intake as 2 twin proposition, like a two- family house. It has not been so long ago that the exhaust manifold was placed on one side of the engine, with the intake as far away as possible on the other side. \ Seme of the air-cleaning devices af- fect the carburetion. Manufacturers are avolding the devices which tend to act as a drag on the alr going into the engine. They also act as a drag on power. One of the time-honored ideas that is geing by the board is that the car owner should not tamper with the carburetor. It might have been good advice in the davs when the ploneer motorist drove his car only in fair weather and then over territory which could be anticipated. The carburetor could be set by the repairer and the driver would have little occasion to touch it. Needs Adjustment Often. Today it is different. The driver may set out to cross the continent. Even if he takes a short trip he may vary in altitude from sea level to 5,000 feet above. He may encounter extremes in weather; there may be g:um or endless hills—all in the same y. The demand is for frequent but accurate carburetor adjustment. Car- buretor manufacturers are confronted with a dilemma—whether to devise a carburetor that will take care of the changes automatically or one that can be adjusted easily by the owner with- out danger of trouble. Various examples of both trends are seen on the 1926 cars. There is a tend- ency to provide heat control from the instrument board. This, at least, minimizes the effect of changing cli- matic conditions. Added to all these, the engineers now face the additional task of mak- ing the carburetor and the normal fueling of the engines proof against fuel “dopes.” More and more motorists are doctoring their gasoline, and this practice may bring forth a few more kinks in the carburetor puzzle. 1t begins to leok. however, as though the car owner would have to know a thing or two about carburetion. There is a limit to automatic action, and where this limit looms upon the horl zon the human element of carburetor control naturally enters. The car owner may vet be the solution to the carburetion riddle. (Copyright. 1926.) SET PAINTED SURFACES T0 AVOID DUST SETTLING Some Bound to Get on Wet Parts of Car. But Mest Can Be Averted. When the parts of a car are paint ed it is inevitable that some dust will settle on the surface before the paint. has set. With the undercoats. s rub bing down after each coat will re- move such dust, but when a notice- able amount of dust settles on the finishing coat the result is far from pleasing. One way to avold some of this trouble, states the Automobile Digest, is to place all the parts which are easily removable in such a posi- tion that the largest surface—or the most important surface—is held as nearly as possible in a vertical po- sition. Fenders and hoods should be stood on their edges. while headlampn should be held: with their faces up- ward. In this manner the duat which would otherwise settle on them Iis Avolded to x great extent and the finish will be proportionately better If 2 number of cloth shields, kepi moist with water. are placed sround the parts. they will absorb some of the dust which floata about in the ajr. The Country NASH | Because of its Beauty of line and finish Strength and durability Wealth of motor power New Prices Now in Effect! Quotations Include Delivery! SPECIAL SIX SERIES Touring Roadster . Sedan (2.door) ... Four-Door Sedan . McReynold’s Service. is in line with the car— always reliable and prepared for any emergency. R. McREYNOLDS & SON Sales—Service 1423.25.27 L St. N.W. Main 7228 “The Country Has Gone NASH” THE SUNDAY ) TAR, WASHINGTON, D. C, NOVEMBER 15 1925—PART 3. d WHITE LINES PROTECT PEDESTRIANS ONLY WHEN OBSERVED ....51.245 . 1340 . 1,580 The advantages of the white lines setting apart trafic lanes for peslestrians are sho F streets northwest. Pedestrians are safe so long as they keep within these lines and automobiles respect them, but are endanges through moving traffic, just as the girl who may be see ure taken by a Paris Is Aroused Over Sizes of Dogs Allowed in Autos An attempt te draw a fine dis tinction between the sizes of dozs allowed in taxicahs has hean er gaging the attention of Frer h traffic authorities. Some members of the Paris Traf: fic Commission hold that ine of no greater length than eight inches from nose to tail should be allowed to ride in commercial auto- mobiles. Others contend that any dog carried in a basket should be eligible to this mode of transporta- tion. going across F street. THE OLD There is something about the auto-| mobile that tempts the average driver | to keep goin’ at all times. There are the daily papers and the accident re ports to vench for this fact. In my own small way [ have plenty portunity to note how many mator haven't got sense enough to stop when it is obvieus to them. ar ought to he that there's somethin’ wrong with the car However, they usually come to a full stop at the repair shop. But that seems 10 be puttin’ the horse hehind | the cart. They could save themselves | many a dollar simply by stoppin’ the | car the Instant something goes wrong | instead of forcin’ along with the ldea | until a lot of extra damage is done. NEARBY ROAD DETOURS. Maryland Roads Board An- nounces Continuance of Seven. Seven detours in Montgomery County will be continued this week. accord ing to announcement by the Marviand State Roads Cemmission The detours are: Colesville-Axhton beginning at Sandy Spring: Damas cus-Browningsville ~ road. 1.4 miles south of intersection of Washington | and Browningsville road: Claggetts- | ville-Kemptown; Ridgeville-Kemptown, at Penn's Corner; Laytonsville-Clays- ville, beginning one mile south of Laytonsville: oPtomac-Seneca, and Laytonsville-Damascus and _Goshen, | beginning 51 miles north of Gaithers- | burg. Cold-Weather Garaging Rule. | Motorists usually go forward into their own garages. but all car owners ought to do it in cold weather. When the radiator is mear the door. it is more likely to freeze,'for the hest ga- rage doors are draf| There's a car in the shop now that shouldn’t be here. Just a case of a| broken fan belt and an overheated engine. But the whole husiness hap. pened just hefore the owner started up a few steep hills with the car. He had plenty of time to stop and look the situation over, and if he had acted accordingly he would never have fore ed the car over those hills. Thera | was an easier route home. A motorist fsn't fnssy whan he stops to find out what's wrong. He's simply wise. He's the fellow who'll find out what's what and get home without buyin’ himself a lot more trouble. One PICK CAR FOR OWN NEEDS‘ In buying an automobile, and in try- | ing to decide whether what one owns | ix what It should be, one should con- | sider whether it ix performance ml transportation that ix most desirable A lot of cars are being marketed as | “performance cars” and they are fill ing the bill for.folk who want that sort of thing it it ix well to re- memher that stunts do not siave off vepair bills nor make miles smiles. T ST T T R Has Gone and becaugse the public has over- whelmingly re- sponded to the 1926 models Advanced Six Series EXTRA LONG WHEFELBASE., Touring (7-Pass.)...$1,625 Victoria (4-Pass.)... 1,955 Four-Door Coupe... 2,155 Sedan (7-Pass.)..... 2,260 “Sixty Years of Satisfactory Service” The Reductions Run as (High as i t and Why 300 ADVANCED SIX SERIES Roadster ceee.. . 81,498 Touring ............ 1,463 Sedan . 1,560 Sales 14th and Park Road N. Leon S. Hurley, Mgr. Col. 2619 MECHANIC SAYS: tourist recently found that his moto was actin’ in a peculinr way. It dra ged just ax if the lrakes were on StoppIn’ 1o 100k over tie situation. he found that some of the luzgage he had strapped 1o the had fallen against the end of ‘he exhaust pipe. cansin’ 4 lot of haz dons hack presenre The experience of wise has been that expensive repairs are the result of a combination of ail ments. But in every case the trouble started with some one little trouble that was overlooked. When they don't stop at the first sign of trouble, be- lieve me. they stop eventually rear bumper car owners Star photographer at Thirteenth and d when they try to cross Women Have Care At Rail Crossings, Watchman Finds Ariahly cigns at rail Stop. look and listen road but inclined to he so carefn This is the apinion of Peter Dot terweich, watchman at the Penn svlvania Railroad crossing at East ern avenue and Eleventh street, Baltimo one of the busiest rail- road crossings in that city. Re. ¥ s men have figured in the few utomobile accidents at this inter- sections.acconding to the watchman. crossings mer | | f | Downtown | worthy | report PROBLEMS ARE STUDIED TO RELIEVE CONGESTION Survey of Cities Shows Enforcement of Laws Is Generally Lax—Many Stores Provide Free Parking. aflic problems in throughout the country and to a cer tain extent in smaller communities are being studied by traffic experts to learn just how different munici palities are handling difficulties re sulting from congestion. One of the most comprehensive studies of this nature and which re veais the growing Importance with which the proper regulation of muni cipal transportation is regarded has just heen concluded by Capt L. Butler, managing director of the Business Men's Asso tion of Lox Angeies. His study civic traffic problems embraced 9.000-mile inspection tour large cities a inforcement Lax. Capt mong other things, the parking pr one of the most which city offic in sho; m s reco; troublesor ing that nized as ith have to deal arly every city rdi nances to re e motor car parking in the busiest traffic centers, but the report_indicates that their chief claim to uniformity lies in the general tend ency 1oward non-enforcement. This laxity is evidently due to the stron protests from merchants in the nar rowly restricted parking areas Capt. Butler frequently calls atten tion to the objections against ordinances. In his report on tions in Philadelphia he savs “Streets are TOW, one single street car track on left side of car tracks parl 1l other places l-dav Is those condi th rk One not park way T hour the £ from vy enforced an all-day irking. Merchants complain - and horities threaten 1o probibit p: ing entirely. All are &0 and angle parkin block movinz traffic. Limited Parking In Kansas City an ordinance pro hibits parking on certain streets be- tween 7 and 8 o'clock in the morning and 4:30 and 6 o'clock in the evening The morping prohibition is not en- forced,” says Capt. Butler. “Mer. chants strongly oppose proposed measure to eliminate parking on downtown streets.” These parking ordinances. desp their mare or lax enforcement have led ma mercantile houses to provide par space for their ct tomers and it may he that the lacal authorities hope by their parking ardinances influence the provid- inz of parking space by private in- terests. Capt. Butler's report shows that this is being done to a very con- siderable extent. Among the note- instances mentioned in the are the following: Newark—One firm provides park- < one-hot 5 pm treets teet less JOorcd Every ounce of material used in building Ford cars must measure upto Fordstandardsof quality— reinforced by Ford standards of workmanship and inspection. TOURIN 3 Touring Runabout - Coupe G CAR 290 - 3290 260 520 Tudor Sedan 580 Fordor Se. dan 660 Closed cars in color Demountal and starter ble rims extra on open cars. Al prices f. 0.b. Detroit of | Butler's report is interesting, | | Parking prohibited | streets ing space for customers bus from the store tn <tation and has handled 2000 people in the four and one-half months it has ben in opera- cars and Garages Maintained Louis—Mere that little attempt force ordinance and a result, twe firms are now maintaining expensive zarages to house customers’ cars a an expense of $20.000 to 230,000 year. One provides parking space for his customers’ cars. A munici pal garage at the edge of the con gested district with 2 capacity o T30 cars provides parking space 15 cents for two hours. ureh—Two large independar ages under construction for park purposes. One firm supplies free service to customers. altimore—Merchants dissat with present nditions, as Laxity 1-dav parkir bought a hlocks 1 pts complain fs made to en police One site for way fram accaunt Trafic surv permits store has new three the <hoppinz ing con nnder way It Lake City—One firm own open several thousand =qu feet at the edge the dlstrict for free parking tochester—Two firms now supply parking and another s con temrlating the erection of a garacx 10 house customers’ cars. New York York ity which itions. of congested in Line, New one fac litics Boston a is credited provides par customers’ cars. 1 rge store is buflding garage to zive such service, and nne Kansas City firm parks customers ind_ one n Francisco firm vides e t the fivnz pre free park Detro limited depending report savs to 20, 30 and 69 on the location on some narro Merchants oppose no park- ing. but have made no arrangements to house customers’ cars. A refer- endum shows that 47 per cent of Detroit's t s comes to th & district in automobiles. Chicago has no free-parking facili ties. Capt. Butler sums up his report on Chicago conditions by stating that as 25 per cent of the delivery vehicles in the loop are horse-drawn. traffic is reduced 10 the slowest pace of any city vieited The single the hand is Tes one-motion signal of arded by Secretar. of State Kozer of Oregon as the beat sys tem thus far advanced to indicate change of direction or operatior of motor vehicle movements. Mr. Kozer has constantly advocated the adoption of that method, instead of the system in use in many States of an elevated ed or downward position of “(Continued on Seventh Page.) That is why Ford cars give such long and satisfactory service. The Touring Car with added beauty and finer riding com- forts, is representative of the unusual value available in Ford cars. Ask the nearest Authorized Ford Dealer to show you this car. Foret Ylotor Gompany,