1929-08-24 — Page 15

THE HONGKONG TELEGRAPH. MOTORING SUPPLEMENT. SATURDAY, AUGUST 24, 1929.

STEAM-WELDED

Firestone

GION TEST TECK

TUBES

Help Your Tyres Serve Longer

The Mark Quallly

In Beam-Welded Tubes Firestone provides all the value made possible by careful workmanship and materials of fine quality. Moreover there is the special advantage of freedom from alow Irake, which are Ho reinous to yro covora.. Steam-Welding makes this possible by sealing the tulo at the vital points, in live steam, under great pressure. Firestone Tubes hold tho air por- feetly, supporting your tyres at the right inflation pressure, and contributing to maximum service. It is common experience for these tubes, with their special heat-resisting qualities, to serve through the lives of several tyres. Make your next one & Firestone.

MOST MILES PER DOLLAR.

Firestone

STEAM-WELDED TUBES

THE DRAGON MOTOR CAR CO., LTD.

Telephone Central 1246 or 1247.

33 WONG NEI CHUNG ROAD.

RAILROADS USE BUSES.

MODERN ENGINES.

HAPPY VALLEY.

NEW YORK USES TAXIS.

motor

CARE OF PLUGS.

Useful Hints.

[By Israel Klein.]

Too much can never be written about the care of the spark plug, for thean little attachments mean a great deal if the engine is to be kept running with the smoothness and power for which it has been designed.

Spark plugs have become more Important in the last two years with the coming of the high com- pression engine, for these necesal- tate perfect ignition if they are to run properly. Here, too, with in- creased compression bringing higher operating temperature and much faster operation, much more stringent demands are made on the spark plug than heretofore.

The motorist, therefore, will And that loss of power, missing of the motor. knocking and other auch difficulties may be traced to either fouled or improperly, set plugs.

A new automobile is certain to have the right type of spark plays in it, for these have beeti placed there be the manufacturer And have been expressly specified for that particular engine by the engineers.

After a year's operation, how- ever, a car needs a new set of pluga. Spark plug designers say that plugs run down after about -10,000 miles of operation and should be replaced to maintain efficient engine performance.

It is in replacing the spark pluge that the motorist should watch his step. He should find put, alther from the booklet of instructions furnished with each automobile or from the automobile dealer, exactly what type of plugs should go into his motor. There are several types and sizes, in nccordance with, the size and design of the motors in use to-day. | and only a definite type and size will fit into a certain motor.

The proper spark plug, if prop- erly fitted, will be so placed that the bottom of its shell will set flush with the top of the firing chamber, and only the firing points will extend to the chamber. Also its points will be just the distance apart requited for, the motor for which it is designed.

As a result there should be no trouble so far as ignition le con- cerned...

However, poor gasoline or oil pumped up into the chamber will font the spark plugs and re-

Seventy-five steam railroads use Modern motor engines are 80 Los Angeles, with 2,116 buses to expedite service, finely fitted that a butterfly's wing vehicle registration of 671,623.onsult in missing of the engine. The The New York, New Haven and is too thick to measure the toler- January 1, 1929, leads all other Tartford line unes the largest lance between the pistons and American cities. New York, with number, more than 576

eylinders.

14,470, in second.

NASH

LEADS THE WORLD) IN

MOTOR

CAR VALUE

Equipped

ow it h

Everything

Without Price Penalty

The newest Nash "co" with the Twin Ignition motor has some of the greatest owner udvantages ever put in an automobile. It is equipped with everything from bumpers to tire fock-ull without extra cost.

It is a fact that this new "400" presents a de gree of mechanical perfection unknown even to the highest priced cars of a few years ago. Then, there were no features such as High Com pression, Twin-Ignition, Centralized Chassis Lubrication, nor Hydraulic Shock Absorbers. "Money couldn't have lought a car with such unbelievable case of steering and such positive four wheel brakes,

Yet this luxury car is now available without luxury's usual price penalty.

Telephone C.1474.21,

THE

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Hydraulic wheel. tubers

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Bungern fromi and

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WONG SIU WOON,

Rote Agents for Hangkong and South China.

SERVICE STATION :-76, Des Vœux Road Central.--Telephone C. 644.

Potilager Strest

remedies are obvious. But a fouled needn't be thrown away. It can spark plug, if compartively new, be cleaned with alcohol or any liquid metal polish und the carbout soot rabbed off gently with a cloth.

The fouled plug, however, should i not be put back into, its former cylinder. A plug from a cylinder that has enused no fouling should be substituted for it and the foul- ed plug, with points rest at the proper gap and cleaned, may go into the elenner chamber.

-

If a pinging knock is heard inf the motor, and the carbon has been cleaned out of it, the cause! of this knock may be traced to overheated spark plugs, which cause the mixture to ignite too soon. If the spark plug is of the right type and size for the motor and if it is installed properly, this trouble should not come up. It is brought up here as another reason why only the proper type and size; spark plugs aliould be used,

The only trouble that might arise from properly used spark plugs, aside from those caused by loose pistons and poor gaseline or a rich mixture, will come when the plugs get old. A recent test in Chiengo showed that a motor with plugs that had been used for 12,000 miles had lost 16 per vent. of its available power. New plugs brought it back to normal.

ONE SIGNAL ONLY,

Complex Signals Misleading.

A

SUGGESTION.

Long and close observation has established the fact that many road accidents are caused by ignorant or over-zealous drivers giving the wrong signals, Rays "The Light Car and Cyclecar." Believing that it is a case of the lesser of two evils, this journal recommends that drivers should muster only one essential signal- namely, holding out the right arm horizontally, when it is intended to turn right. It is pofited out that cases have been all too frequent where drivers, whon endeavouring to appriso others of their inten tfona, have found themselves in trouble and where complex signals have conveyed a meaning, entirely at variance with that which was intended. The suggestion is made that the only eignal that is really essential should convey the mean- ing "It is dangerous to overtake on my off sido."

For The First Time

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IN A CAR UNDER HK$3,000 (Hongkong Delivery)

The Rooserhelt sedan which brik, all records for 'sustained automotive performance on the

Indianapolis Speedway near the finish of the gruelling test,

BUILT BY THE MAKERS OF THE FAMOUS MARMON CAR.

PROVIDING FAITHFUL ECONOMICAL TRANSPORTATION

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Tel. C. 3650.

BRITAIN'S THREE BEST!

B. S. A.

NORTON

EXCELSIOR

There is a model in our stock to suit your requirement-' be it for business, pleasures or sports, and a price. within the reach of your means. Hire-purchase system can be arranged, and our repairing service is always at your command,

Kindly Apply for Particulars

THE SINCERE CO., LTD.

SOLE AGENTS.

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