The Choice
of the-
THE HONGKONG TELEGRAPH. MOTORING SUPPLEMENT.
G. W. R.
L. N. E. R.
and
SOUTHERN Railway
for their new
RAIL ROAD SERVICES
THORNYCROFT
SIX-CYLINDERED
COACHES & OMNIBUSES
Preferred by experienced users!
Further particulars of our Lorries, Vans, etc., for
1 to 7 tons, and Coaches or Omnibuses for 20
to 45 passengers forwarded on request to:-
JOHN I THORNYCROFT & CO., LIMITED.
UNION BUILDING.
HONGKONG
FIFTH ... ...... FLOOR.
Write us and our representative will call.
Telephone Central 4831.
DEAL DIRECT.
Roosevelt
CAR FOR ALL
MARMON-BUILT
MARMON-BUILT
MANY NEW CARS
but not one like the Roosevelt
PIKES PEAK HILL.
Annual Hill Climbing Competition.
STUDEBAKER WINS.
The 11th annual Pikes Peak Hil Climbing classic on September 2 was won by a fully equipped, stock Studebaker President Eight Road- ater, which by its fent captured the historic Penrose Trophy. All ex- isting stock ear records for the course were smashed.
SATURDAY, OCTOBER 26, 1929.
HINTS
FOR THE
MOTORIST
ALBERT L. CLOUGH
DETENTION AND PREIGNITION,"
"'ts
The phenomenon of detonation after a time, makes the The winning car, piloted by Glen the cause of "pinking's not within the combustion space so Shultz, famous race driver, com- yet thoroughly understood, but it hot that preignition begins to pleted the 12.4 mile grind. to the may be described something as fol- occur. summit of America's most famous lows: When the spark occurs in Skips at High Speeds.
mountain, 14,109 feet high, in 21a charge of fuel of certain charac- Question:-I am unable to speed minutes 48 and 2-5 seconds,, at anteristics, which is compressed my car beyond 45 m.p.h. average speed of 34.3 miles per above a certain point and is at a When I try to do so, I can feel hour, bettering the previous stock sufficiently high temperature, that the engine is running uneven- car record by two seconds. This there is first an extremely sudden i and I am positive that some time was considered exceptional in and sharp localized explosion, of cylinders miss.' This trouble view of the condition of the course a character somewhat like that of came on several months ago and which was against the best speed. the fulminate in a gun primer, since then I have put in a new Two other Studebaker stock cars. which is followed by the combus-set of plugs, have had the spark- a second President Eight Roadster tion of the charge as a whole of plug cables renewed and "have! driven by Ab Jenkins and a Coma slower and more normal nature, tried a new coil and condenser mander Eight Roadster, driven by more like that of slow burning without any benefit. The engine Ralph Hepburn participated in the powder in a gun. The fulminate-runs perfectly regularly under all event. Their time for the climb like explosion, with its extremely other conditions, and has fine was 22 minutes 68 seconds and 54 high pressure is the apparent power. What do you think is minutes 10 and 4-5 seconds respec- cause of stresses which produce wrong? tively.
the "pinking" sound, but it is too Answer:-If this is an ignition The Penrose Trophy goes under short to develop useful power. It trouble, we suggest that you have conditions of a deed of gift to the seems to cause imperfect combus-the braker mechanism of your dis entrant in the race making the best tion of the charge as a whole "tributor checked up. If the s time in the stock class It Jaa ducing its power value and setting are too far apart, the contact may large allver, beautifully ornamented free large quantities of carbon to not be long enough, at high speeds Anti-knack to charge the coil so as to insure bowl, over 150 years old obtained in foul the cylinders. Europe by
tendency fa Spencer
suppress Penrose, fuels
spark. If the breaker-bar Colorado Springs capitalist: Ac- toward this abnormal, detonative spring, bas become weakened, it cording to reports it was used as a explosion of the "fulminate type." may not bring the points together magnum for champagne on many Preignition is the firing of the in time when the engine is turning historic occasions in England.
charge prior to the passage of the lover very fast and if the breaker- spark, by any means which har eiers is gummy or perfectly The race started at Crystal Creek any part of it to its ignition ten-jay the bar day nut work quickly bridge, 9,150 feet above sea level perature. Anything in the cont-enough to close the circuit reli and five miles from the foot of the bustion space, such as a valve, a ably. You might try another mountain, before a large gallery of spark-plug shell or a flake of car-spring. We suppose the plug gaps spectators. The course of the run bon deposit, which becomes suffi- are correct. The missing may be is known as the Pikes Peak High-ciently hot or remains" so from due to weak exhaust-valve springs way, considered one of the most previous combustions will cause or gummy exhaust-valve stems, wonderful motor roads in the preignition of a charge during and not be attributable to Ignition word. The route is a double track compression. Preignition occurs defects at all.
the
road, 20 to 60 feet wide all the way, before, the piston is fully up and Pistons Fitted Too Loosely. A twisting, turning ribbon of white, the pressures produced act partly Question: I bought a new mounting skyward, and tricky to turn the engine backwards. car this past summer and after I enough to test the skill of the most Detonation, by the disturbance had run it 5,000 miles a slight experienced driver. There are no which it causes in the burning of knock developed in one cvlinder,. less than 154 turns. The climb is the charge, reduces the promotion which an expert trouble man de- considered a sheer test of stamina. of its energy realized as mechani- cided was caused by a loose piston. speed and power.
cal power and the balance of the He put in a new one 0.003 inch
examination of the old piston were selected at random from factory production by officials of the tu 1 on President and 4.7 to 1.on fact it seemed that only its top showed no appreciable wear, in American Automobile Association,
all of which is and bottom portions had been rub- checked and their stock status | Commander) established prior to their being optional and available to any bing on the cylinder walls
a similar knock has started in driven to Colorado Springs under Studebaker purchaser anywhere.
Shultz, pilot of the winning another cylinder and I am wonder- the observation of A.A.A. officials who turned the cars over to the Studebaker is a driver of repute ing, if all the pistons will have to Colorado representative of the The Pikes Peak Climb is no novely be replaced: Can this trouble b A.A.A. upon their arfival. Before to him. He has won seven first my fault or was the engine imper. leaving the factory, seals were prizes in the Pikes Peak Climb fect in the beginning?
WOT Answer: In our belief you are placed on important motor parts. This is the first time he has This followed the same procedure the race driving a strictly stock not at fault but that the manufac-
The three competing Studebakers energy appears as beat, which larger and the knock stopped, but
which prevailed in the world record ear.
run of the four Presidents at
Atlantic City Speedway a year ago
in which each sped 30,000 miles in less than 28,128 minutes.
Each Studebaker car was វា strictly stock model. They carrlad high compression heads (6 1/2 to 1) and mountain gear ratios (4.08
YOURCAR SHOULD CARRY AN AUTO-TOTAL THE BEST MOTOR CAR FIRE EXTIN-
GUISHER IN THE WORLD
Prices from the Sole Agents,
KELLER, KERN & Co., Ltd.
15, Connaught Road, C. Telestione 0, 8120,
JOIN
Now
tyrer was remiss in putting out
STOP Firestone
You
this engine with pistons having too much clearanco. So form as the piston-rings were tight in their grooves, they provented noticeable piston alap, but when they word loose,
slapping commenced. Probably oversize pistons will joventually have to be fitted in all cylinders. Occasionally a factory makes a mistake in the matter áf piston fit, which may affect a large number of engines before it is corrected.
CHRYSLER
-above
all others.
SOLE AGENTS
The Republic Motor Co. of China.
(Successors A. LUNG & Co. Auto Dept,)
30 99. Des Voeux Road
€UK-FIP723 TIRES
think you've made it—just as you're about to shoot across, the light goes red-Stop! Then is when you'll appreciate the perfect non-skid design of the Firestone Tread. When your brakes stop the wasels, your Firestones stop the car... Sale! Firestone safety can be yours to-day."
JOCIATE
Full-size, four-door, five-passenger.
Broadcloth upholstery throughout.
One-piece crown fenders.
70-horse-power Marmon built engine (same motor of slightly smaller bore as in higher-priced Marmon Eights)..
Quick, smooth eight-cylinder acceleration.
Wonderfully easy steering and easy clutch action. Powerful, four-wheel brakes..
Luxurious, long-wheelbase riding quality.
ALL AT
$3,200.00
WITH COMPLETE" EQUIPMENT.
S. L. KWOK & Co.
SOLE DISTRIBUTORS
Bank of Canton Building.
Tel. 0. 8457.
THE HONGKONG AUTOMOBILE
ASSOCIATION
A. Few Advantages:—“ 10% Off Motor Car Insurance Free. Legal Advice. Reliable Drivers Supplied Free Mechanical Advion.
Associate Membership of the
B. A. C and AA. Londra.
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Hon. Secretary, S
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THE DRAGON MOTOR CAR CO., LTD.
Telephone Central 1246 or 1247.
33, WONG NEI CHUNG ROAD, HAPPY VALLEY,