1930-01-09 — Page 13

THURSDAY, JANUARY 9, 1930.

SLOW RUNNING Some Carburetter Problems

An engine which will idle" re- gularly without danger of stopping is an absolute necessity for driving comfort. This happy state of affairs can only be arrived at when the carburation is correct, with all the essential factors of the engine working in unison (aays the "Autocar"),

The carburetter usually supplies idling mixture by means of a small choke tube and jet working in con- junction with the main supply, rich mixture at a low speed being led to the butterfly throttle, where it 'meets a high-speed air stream pass *ing the partially closed throttle; at this point it is corrected and atomised.

SLEEVE-VALVE CAR

Covers 20,000 Miles At 82.73 Miles Per Hour

THE

ROUGH MOTORING

Central Australian Experiences

CHINA

MAIL.

WHERE TO SIT

· Loading A Small Car

All records for sustained speed, Literally teeming with human in- In the case of the small light car, previously held by American cars, terest Is a letter received by the especially the four or five seater, were shattered on the Monthlery Shell Oil Company from Francia there is a matter in connection track near Paris, France, when Birtles, the Australian explorer, with loading which is worth atten- Marchant, Morel, Kirtleff and Leroy from his headquarters at Pine tion and is too often overlooked. De Presale drove thoir 12-cylinder Creek. It paints a vivid picture of When there are three passengers in sleeve-valve Voisin 30,000 kilome- the great interior of the continent, a car the disposition of the third, tres In 224 hours, 59 minutes, and bush fires that rage at will over suppesing the first two are side by 58.78 seconds, for an average speed unlimitable spaces, and of gallant side, is important. The driver of 82.97 miles per houn

settlers that push their boundarios naturally occupies the right side of

The engine of the Volsin is the out into space and with indomitablejthe front seat. The other passen- same type used in all Willys-spirit conveft an arid desert into a gors should be so disposed that the Knight cars built by the Willys-profitable cattle station. The last greater weight is on the off side of Overland Co., the world's largest two months wore spent completely the car. Thus, a third passenger, manufacturer of cars employing out of touch with civilisation, and if in the back, should sit on the sleeve-valve engines.

Birtles describes them quite frank-right side. Similarly, with four The 20,000 mile record was made ly as being "the toughest yet," and passengers, endeavour always to in 241 hours, 43 minutes, 40.9 the modest chronicle of his ex-get the heaviest on the off dide seconds, an average of $2.73 miles pariences certainly bears out this The camber of the road already It le common practice for the per hour.

conclusion.

draws the car down unduly on the alow running mixture port to be By this achievement the Voisin For two weeks constantly he ran rear. springs. This propensity is completely covered by the butterfly broke nearly all the records estab-tho gauntlet of a bush fire which, emphasised and increased if the when fully closed, idling speeds lished at Atlantic City last year and at one time, forced the car on to heavy passenger is seated on the being obtained by a partially open-set up now records for one day up the banks of a steep creek, from near bide.

the

est throttle. Admission of slow- to 10 days recently recognised by which it seemed he would never got The car is difficult to steer out running mixture on the engine side the International Sporting Com-out. Rabing back through six miles of the left afde of the road and on of the throttle has often been sug-mission on the recommendation of of long grass, stumps and timber, corners one may find difficulty in gested on the grounds that it the American Automobile Assocla- he burat both back tyres and had getting round without much reduc- would cause a high air speed past tion.

to continue on the rims. When tion

Sometimes in speed. the pilot jet. This method, how. After covering 30,000 kilometres, Crossing one particularly heavy heavier load on the near side ever, would probably necessitate a Gabriel Voisin announced that his patch of burning ground a tla of makes for actual danger. It in- fully closed throttle, and the initial car would be stopped at 40.000 kilo- petrol burst causing considerable creases the chance of skidding advantage would be lost by a fall metres, this being about equal to the missed a gap in the hills, where prevents recovery. Equal loading Inconvenience. Shortly afterwards when the surface is greasy and it in speed of the mixture after pass-the distance around the world at ing into the large space between the equator.

When near the 35, he had intended to get water. "The is the thing to obtain if possible, the throttle and engine.

000 kilometre mark, however, the valley I was in," he writes, "hem and to ensure equal loading on One of the few exceptiona to but-car turned over.

med me in to a dry, sandy creek, cambered roads, It is desirable to terfly idling control is a well-known The car used for these records and it was only after a long, dry have the greater weight on the off constant vacuum carburetter, which was a special Voisin, with a 12 stage I at length found a small side of the vehicle; since so much takes. its idling mixture from the cylinder siceve-valve engine of 86 spring half way up a mountain of the driving is on the unlevel left. main jet by means of a temporarily by 150 mm, bore and stroke (3.39 side. Alled my water tins and side of the road. restricted choke section. The corby 5.12 inches).

The cylinder humped them to the car and set reet idling speed and mixture are blocke were taken from stock, but off back to the gap. Owing to the NEW HUPMOBILE 8 obtained in all cases by working on the three bearing crankshaft, more the car became stranded three miles loss of patrol from the tin bursting, two adjustments-throttle opening than four inches in diameter, wan and mixture strength. The former built apecially, and the crankcase away, just as my water was finish- adjustment can be readily made by was built up of welded sheet steel.ed, so I tramped to the spring, rost- noting the engine speed, but the latter can only be obtained by trial, companies are reported in touch where I had a Shell supply stowed Officiala of American automobile ed, and then walked 20 miles to and should be carried out with the with the racing board of the Au- journey. Have you ever tried new eight cylinder motor car in the The Hupniobile Motor. Car Cor- away underground for the return poration of Detroit announces ignition retarded as far as prac-tomobile

·tleable.

Club of France with a view to attempting to regain their 20 miles through scrub and rocks car is faster, more powerful, and in- carrying a four-gallon tin of petrol medium priced class. This new Correct Idling Mixture records of the French track.

under a blazing hot sun? Speaking generally, a correct

troduces striking and original In- idling mixture strength will give

"Getting back to the car I found

| novations three tyres flat. The heat of the beauty harmony,

In body design' and. the most regular firing. Black

It will be manu- smoke from the exhaust, is a sure

ground travelling and the hot sun factured in five body types:-five sign of over-richness (unless a

had Hfted all the patches.

The passenger sedan, convertible cab- large proportion of benzole is being

aplution was about as sticky as riolet, town sedan, soupe, and seven used). A wosk mixtura can often

treacle. I spent five days at the gap spring before getting the cabriolet, which features

passenger phaston. Both the be detected by placing a piece of The accuracy of automobile patches to stick, bat bad luck dog-patented top construction, and the writing paper against the end of speedometers la, to-day, practically ged my path. the exhaust pipe. This will cause taken for granted. If actual scien- rough mountain and creek beds my seats.

Coming over the

coupe are equipped with rumble a loud fluttering noise (denoting tific tests were made it is possible engine gasket blew again-my last commodates five passengers has The town sedan which ac- weakness).

that this accuracy would probably jone and on a dry stage. I tramp

SPEED READING

Effect Of Tyre Wear

It is often extremely difficult to be found to be approximate only, fed three miles for water, carried obtain good idling from a small en-but in most cases so near to ac-some back, but the repair was bo- gine with a light flywheel, especial-curacy as to be of practical value yond me. Luckily I was now with ly when a 'lów range of ignition for ali ordinary purposes. But in 18 miles of a cattle station and control is available. In these cases (speedometers may become. inac-walked to there. The cattle owner, it will often be found that a fast curate, and generally they err, was a new chum motorist. His ear idle will give steadier running and after long use, on the side in was stranded 30 miles away, so we minimisa the risk of stopping when creasing the speed roading. the clutch la withdrawn or a gear

saddled up pack horses and rode Again, tyre wear will affect the out. We found the battery flat, due, engaged,

reading. Given a tyre with, at first, I suppose, to the acid having gone Engines are now. often called a good thick tread, which has worn stale. There was no magneto on upon to idle correctly with number down considerably, the reading will the car, so we had to send a nativo of pipes leading from the induction be on the fast aide. If the trend off on a fast horse to Pine Creek: system to various vacuum auxili-wears half an inch in diameter, the Next day he came back with a bor- aries. The small constant air car wili travel approximately one rowed battery. leakage caused by these is all but and a half inches less for each Birtlas, quite unconcernedly, "we And so," writes negligible, and is compensated for rotation of the wheel. This will came eventually to Pine Creek,

by

Has Unique Design Treatment

Д

a new

Sedan 8 Model

a slightly richer mixture.increase the speedometer reading where the pleasantest sight for Should the combined air leakage, by a small amount. If the owner montha was an adequate stock of plus valve guide and piston leakage, is in doubt about the accuracy of Shell spirit and oil supplies. We other a black or tan apert fabric oxceed a certain amount, however, his speedometer he can easily check have already loaded up stures for top. the correspondingly richer mixture it between mile posts. If it is much my wet season camp," " called for will commence to cause out, he should have it overhauled troubles, the most serious being and reset. Wear of tyres will affect what is termed "collecting."

the mileage registor to the same de- gree as the speed reading..

SILENT SALESMAN

: Firing in the Silencer Years ago most engines were troubled by this owing to their ex- cessive induction air leakage. The vacuum in the system was insuffl-Orders The Manoeuvres clent to dry the walls and a film of liquid petrol formed. This in creased in thickness until it flowed Into the engine, causing it to stop.

May Bring

www

How the new role of silent salesman In the event of the ignition being to the British motor industry has been unconsciously filled by the mechanised

“Be sure to see it”

The New

BUICK

with New Controlled Servo

Enclosed Brakes

114" Wheelbase Marquette Modela

118" Wheelbase Buick Models 124" Wheelbase Buick Models

182" Wheelbase Buick Models".

.0$1,470 to G$1,600

G$1,800 ta G$1,940

G$2,240, to G$2,275

.G$2,195 to G$2,890

THE DRAGON MOTOR CAR CO., LTD.

Telephone Central 1246 or 1247.

33 WONG NEI CHUNG ROAD, HAPPY VALLEY.

By concentrating production of the new six in the Cleveland. Hupmobile plants, the Company leaves all of its manufacturing facilities at the spacious Detroit factories free for the exclusive manufacture, of eight cylinder models.

The new eight cylinder Intro duces for the first time in America a car with a single unit of harmoniz-

A custom trunk, is included fn the standard equipment. Another part of his letter was de- This, now model C marks Hupmo- voted to the good game hunting he bilee entry fate the medium priced had experienced during his two class, with an olight cylinder model, months' trek.. According to Birtles, and follows the pioneering step it was the beat fishing and shoot taken by the Company two months [ng in Australia, amidst park-like ago, when it anpoanced the lowest surroundings. There are hundreds priced Hupmobile ever tulity within of thousands of geese, all of which the thousand dollar list priče, class are wily and give good sport; Fastest and Most Powerfuled beauty. This modern motif quantities of duck, and rod, Uno This new eight is the fastest and is followed throughout the car, and reel fishing in both fresh and most powerful car ever built by from radiator cap to tall light, both salt water lakes, creeks and rivers. Hupmobile Tests made by en- inside and outside. Some features ginoors during one thousand miles of this new Hupmobile Eight are

switched off prior to this occurs forces of the Army in revealed by the COUNTRY TOURING of driving exhibit perfect accelern-dual elimination of vibration by

rence, a large quantity of petrol report of an incident during the re

In Australia

ran back from the induction system. cent manoeuvres on Salisbury Plain Automobile Club Hotels It will thug be seen that the safe. It is stated that several Australian margin for air leakage must not be and South African visitors in Landon Exceeded were so impressed by, the reports, of

One of the most exasperating ills the behaviour of these vehicles that Now that the bouring season is from which modern vehicles are they made a special Journey to Wilt-

noaring its height, mumbers of the liable to suffer, is that of firing in hire to see the lorries in action. Royal Automobile Club are remind- the silencer when the car is driv- ing the engine. There is no certain "These, Jerrics covered nearly 100 sd of a service designed to add to cure for this, one can only ensure miles a day" said one of the officers their contfort

that the idling mixture is rich enough and that there are no sir leaks in the exhaust system both before and behind the silencer

Some heavy vehicles are gre Offenders in

espaci

"ly old ones

pipe

the trou

No Breakdowns

an interview.

The touring departament “There were - 31 of them and they vs hotela rouched for

even under and genered comfort,

<the

velling

tion devices and astounding bill-counter-weighted crank shaft and s- bullt to drive witbotst affort, hour hydraullo shock absorbers, steel- climbing ability. This car was Lanchester vibration damper, new

after hour at high speed. Ease draulic plates, cam and lever steer and perfect control are some of the Ing gear, deep cushions, fonger |other advanta found in the long wheel base, more width, and greater

head and leg room, road trials

As good

as New

DUCO

Let us renew the original beauty of your car with an expertly applied DUCO finish job. Then she'll look as good as new.

Full-particulars from

THE REPUBLIC MOTOR CO. OF CHINA, -30-32 Des Voeux Road C. Telephone C. 1819 & C. 6232,

RADIO SUPPLIES Electric Gramophones

8 Motor.

Sound Bo