HONGKONG TELEGRAPH.
MATCHLESS
IN NAME AND REPUTATION.
THE MATCHLESS MOTOR CYCLE REPRESENTS
!
THE SCIENCE OF LUBRICATION.
SATURDAY, FEBRUARY 21, 1925. MOTORING SUPPLEM
ties and become more and more contaminated the longer they aro used. The extreme boat to which the oil is subjected, and the
THE FORMING OF CARBON-particles
(Continued from Last Week}
HEAT RESISTANCE. The quality of heat' resistance
THE LATEST AND BEST IN DRItish motor enGINEERING,in an oil depends both upon its
valve engine.
5b.p. Low Compression o..v. single cyclinder engine.
8 h.p. J. A. P. latest type touring side valve 50° twin touring engine.
All the above electrically equipped and complete with
full kit of tools. Speedometer and Horn.
of bearing material; which wear off by use will change the colour of the oil to a brownish, (or bluish block. Another serious chango is caused by the process of dostructive distillation which occure
the
on the lower sido of
piston head. This
in tho formation
volatile charactor and its fasli rosults
B substanco resembling point. The volatility of an oil is of measured by tho amount of Korosone Distillate and also free on ovory power vapor which it throws off under oarbon. Also
1925 MODELS NOW IN STOCK in order that the correct
Tel. 32 HONGKONG HOTEL GARAGE Tel.
THE HONGKONG & SHANGHAI HOTELS, LTD.
Harley Davidson
while
CARBON.
06
3 h. p. high efficiency side ent and amount depends upon stroke, the tremendous prossura the boiling point of its various of the explosion, forcos some of past the fractions. If there is too much the burning gasses vaporisation at working tem- piston and into the crank caso, peratures, the remaining oils The result is that free carbon or become too viscous. If it is not noot is added to the oil which volatilo onough, and the boiling does not holp the lubrication. On point of fractions is too high, it the compression stroke, the gas onorates serious carbon condi- mixture ontors occasionally con- tions. When the piston desconde taining particles of raw gasoline. on the power stroke after the This is forced into the crank case combustion in the cylinder takes and further injures the oil. Those place, the outer surface of the conditions, of course, would occur film of oil comos in direct contact with any oil if the engine was in with the burning gasson and of auch shape that they could occur, course is burned as the tempora and the destructive distillation" vture le muot higher than the of the oil due to heat-would
flash point of any lubricating oil, occur in any event. namely about 3000o, but the inner surfaco of the oil which clings to
Carbon forming within the the oyllader walls, and is in con- tact with a temperature of 270, combustion chamber is one of remaine. In this way the entire problems of overy motorist. As general thing this is laid film of oil is not consumed. Ita
of A mattor follows, therefore, that an oil wholly to the oharacter of tho possessing the highest possible oil.
duo very largely, heat resisting qualition is essen-fact, it is
Chemical to other СЛИВОВ. amount of oil may cling to the analysis of the material removed oylinder walls for the lubrication from the cylinders, shows that it of the upper part of the platon on a very largely composed of road 32 upward stroke. The lower dirt and dust with a small par- part of the piston tu takon care contage of iron and some froo of by the supply of oil which it carbon. When this deposit le collects from the spray in the oily and soft, it is due to the pro- orank caso. In view of the fact sence of partially distilled Petro- that ono oil must take care of the leum caused by the destructivo lubrication of all parts of the distilation of excessive quantitios ongino, each having a different of oll which under certain con- temperature, and at the same ditions find their way into the possessing lubricating cylinders. Of courno, & cortain timo
of lubricating oil is qualities which will enable it to amount take care of the various speeds, required for the lubricating of the and pressures, fun oil in fact that cylinder wells and piston but can be designed to satisfactorily when too much oil is splashed on lubricato a motor car engine) the cylinder walls or when the must be an oil especially adapted clearance between the cylinder and especially designed to moot and the piston is too great, or these conditions. Of course, as when the piston rings are impro- there are many types of engines, perly FITTED or worn, too much oil is drawn up into the combus- different types of cooling systems, different conditions of service, tion chamber. The intenso hoat the combustion chan har. seasons and conditions of cars, in
the
volatilo of lubricating vaporizes tyJus any
of the LXCCNA oil, systems, no one oil will mest all parts
unite with the the conditions that may arino in Those vapors the various typos. It is neces- gavoling and air, causing a mix- sary to design a number of oils Luro that is too rich. The loss to moot all the work which volatilo part of the oil is deposit. will
them, od upon the piston hond-cylinder bo required is with
thorough heal--and other parts of the com- It knowledge of the requirements bustion chamber and form the of motor car augino lubrication foundation for an accumulation and with many years of refining of carbon. When the ongino is experience with crude oils am overheated, this bakes into a When the angino is bodying correct lubr.cating pro- solid m1984, porties, that the Standard Oil running cool, it remains in a soft Company has perfected and is to state. In the former case, small, put on the markot oils that will particles of the carbon become moot every condition and every red hot and may cause pro-igni- tion. In the lattor case, thol kind of car.
deposit takes up space in the combustion chamber until the compression space is too small which also causes pro-ignition.
1924 MODELS IN STOCK FOR
IMMEDIATE DELIVERY. SHEWAN TOMES & CO. Sole Agents, Tel. C. 781.
(GAS)
AUTO
REPAIRING
If You're Tired of Paying
BIG REPAIR
BILLS
-better let us take care of your car regul.rly. By keeping every part of the mechanism in perfect working condition we largely eliminate the bigger troubles -- don't give them chance
to develop.
And not only do you save a lot of money in the course of a year but get uninterrupted pleasure out of your car.
THE DRAGON MOTOR CAR CO., LTD.
Expert and Constant European Supervision. Telephone Central 3950. A. J. Allison: Service Manager.
of
EL
DETERIORATION OF OU IN CRANK CASE.
more
Thoro is one subject regarding which we might say a word and that in the cause or causes of the deterioration of oil in the crank
LIMITED IN SIZE. subject to Саве. All oils are
Under the now Italian traffic change in their characteristics while doing their work in the law autos will be limited in width, crank case and they will largely longth and height, as well as
their original quali- weight and carrying capacity.
JOBC
SHELL for reliability and reserve power
EVEN with a faultless ignition, the modern high-compression engine pinks-on acceleration -- when driven by an inferior spirit.
Shell Motor Spirit owing to its high percentage- of aromatic hydrocarbons eliminates that slight knock- ing sound termed "pinking."
THE ASIATIC PETROLEUM CO. (SOUTH CHINA) LTD
...
STUDEBAKER
Speed-Strength-Superiority
brilliantly demonstrated in 900-mile non-stop run!
new
Studebaker Standard Six sets non-stop speed record, El Paso to Los Angeles - one of the most brilliant performance records of the year!
N December 5th, a stock model Studebaker Standard Six, with gears sealed in high, left El Paso, Texas, (U. S. A.) for Los Angeles.
24 hours and 21 minutes later, this same car with its engine purring as sweetly as the day it left the factory-arrived in Los Angeles. 900 miles had been covered from dawn to dawn. Soft, sandy trails-moun- tain grades rain and wind- from one point 5000 feet above sea level to another 22 feet below the level of the sea-such wore the cbstacles which confronted the sturdy Studebaker!
But on it roared-through the morning, afternoon, ovening and night--never faltering under its gruelling punishment: nover halting once. Refueling was accom- plished from tins while the car sped on. Drivers alternated. But the powerful Studebaker Standard Six tock no rest until its goal was reached - Los Angeles!
Comparisons show that the New Studebaker Standard Six has more power than any other car in its price class-more in fact, than some cars selling for two and one half times its price! Now this phenominal record proves
the the superiority of Studebaker Standard Six power plant- proves its absolute reliability and unlimited endurance!
Studebaker
Summary of the New Record
Six
Car: Stock model Stude..
baker Standard Duplex - Phaeton with gear sealed in top gear,
Drivers: Edward R. Lester and C. S. Payne, al- ternating.
Course: El Paso_to_Los Angeles, U. S. A 900 miles.
Date Left El Paso, 4 A.M.
Pacific time, Dec. 5th. Arrived Los Angeles 4.21 A.M. Pacific time, Dec. 6th.
Time: 24 hours, 21 minutes.
The New Studebaker Standard Six
You can see an exact duplicate of this record- breaking car in our show room.
See the neat, compact Stardard Six See the host of conveniences this car engine. See its completely machined crankshaft-inclined valves. See the new Studebaker Duplex body which com.bines open car freedom with
closed cur confort.
See the full
embodies--the light control on the steering wheel, the new-type emer- geacy brake operated from the dash. the neat grouping of the instruments under glass.
The New Studebaker Standard Six size balloon tyres with steering
sets new standards of performance, gear, prings-even the mudguards beauty, comfort, design and value. especially designed for balloon tyre equipment.
See it whether or not you intend to
buy a new car!
STUDEBAKER HAS BEEN BUILDING QUALITY VEHICLES FOR 78 YEARS
Sole Agents:
THE HONGKONG HOTEL GARAGE
PHONE O. 4759.
PHONE C. 4759.
The New Studebaker Standard Six Duplex-Phaeton
$2950
THE HONGKONG & SHANGHAI HOTELS, LTD.