MOTORING
SUPPLEMENT
OF
THE HONGKONG TELEGRAPH.
Saturdy, Sept., 29th. 1923.
(Being the Official Organ of the Hongkong Automobile Association).
LOCAL MOTOR NOTES & NEWS
>tate>
"SCRUTATOR" REPLIES,{
TUNING A MOTOR CYCLE.
Ratio of the Three Gears.
something similar in used, but air pipes are connected to car buretor and lank in such a man- ner that the pressure in each is equaliset. Also in most cases
“Scrutator" is prepared to For Record-Breaking at nowadays where a twin engine is
Brooklands.
BY."NORTONIA.")
(Conttuned fr un last week),
the
used, twin carburettors are also) answer questions on motoring)
employed. Before being tried; ¡matters. Queries should be sent!
an the track the engine is tested) on a dynomometer. This is an The Colony of Hongkong is In Hongkong, the problem is not later than Tuesdays. Below question andi We certainly think wil be found a
Bnstrument used for testing sai gradually becoming thoroughly really acute.
imagine on a bench and roughly motorised. The taxis are already that, in the city of Victoria at any
F.W.S. asks: Does the engine,
speaking, usually hydraulic force proving a boon to the public and rate, the system evolved in certain;
and Fazlish of an ordinaay passenger cari are being liberally patronised. American
used. This testing is im-! ortant in that it shows what the Most assuredly we are getting towns should be adapted namely make about the same number of more like London every day that within the city limits alltevolutions per minute, when the
In fact car is running & miles per hour The engine is now carefully engine is capable of and what On the Kowloon side, the motor light: -hould be dimmed. bus services are being extended, we think it should be hade un- on first speed, 1 miles per hour balanced (an article on engine lower it develops with different and since Monday last some of lawful for anyone to drive in the on second speed und 20 miles per balance will appaur later) al compression ratios'different rams. though eases bive been known and different valve and magnetoj "these huses have been running city with the full power of the hour on high speed ?
Answer: Yes you are approxi-where an en zine which has been siming. Generally, so engine with! heen a high compression will develop out as far as Lai Chi Kok. headlights.
mately correct but on the average slightly unbalancet 235 Needless to say, they are doing.
how gear is neator 0.3 of high gear faster than when correcths hal-more power thin an engine with! good business,
The speed limit in the eity is than the 0,25 which you have as-janced. However, in nearly every low compression, with 15 mph and powerful headlights sumed and see and speed is peacericase a correctly bala¤red "engine attendant drawbacks that too The valve pre-ignition.especially with plugs. Motorists generally are thor- were designed for speeds greatly 95 of high than the 0.5 which you is faster than one which is in- nigh a compression ratio causes oughly in acend with the Tele- in excess of that. The town is very are figuring on. There is, haw-correctly balance-l. gruph plea that the power to well lighted and one has only to ever. considerable difference invest is now taken in hand and kocking at slow speels, and cancel licences should be taken stand at the junction of Pedder Practice as to the second speed this is one of the most trouble aere is the risk of overhead! out of the hands of the police and Street and Des Voeux Road and fatio, it sometimes being nearly some parts of the whole operationsalves hitting the piston when the vested only in a magistrate. The watch any motor car approach what you assume and sometimes This is especially so with the eatine is hot. The bench test For an cams, and a successful eam is also shows at has many RPM existing system is indefensible, ing with full headlights to see 9.7 of high or even more. and we look to the Automobile how unneccessary and useless interage, we should say that 6. 12, more often than not the result of the power curve moaks. That is. unnecessary in 3nd 20 would be nearer than the a long series of hit and miss the engine R.P.M. an 1 H.P. dove- Hopi is plotted on a graph and it Association to take this question they really are
will be found that the engine deve- up in the interests of its members, that the street and shop lamps 3. 10 and 20 miles per hour that experiments.
camped the greatest power at a In next Saturday's Supplement give ample light, and useless you have assumed. In the case! In the first place.
street and of any particular make and male formed approximately in soft cartain number of R.P.M. This is we hope to have more to say on because the same this subject.
filetken into account when gearing -hop lamps so eross and -plit up of car the gear ratim are readily metal and then it the beams of the headlights that phainable and the exact speed hardened and ground until the mic. Unviously a gear which each gear, at a fixed engine speed, tuner thinks it is somewhere won't allow the engine to develop near the correct shape. A number enough R.P.M. to reach its maxi- Has Kowhen too many tuoter
mile calculable,
of cams are treated like this until mum horse-power is as useless as! bases? In the opinion of many
the one giving the most power a gear which allows the engine toş residents, the answer, as they
and speed har been found
reach its maximum horse-powerį yay in Parliament, is in the approaching: watch how beth affirmative. It is a common sight drivers have to leave the wheel used in previous models has been. Generally speaking, a valve set when the machine is geared too nowadays to see strings of buses with one hand and in most cases eliminated by re-designing the ting which gives good results for tow to take advantage of it. moving up and down Nathan lean forward in an unnatural clutch and the rating a large racing is injurious for road work.
the whinda Tert of the lost.
Sue
rative unuther
1r
in miles per hour obtainable onl
1.
• +
H
grips.
resistance
AS
"SOME" MASCOT!
Possibly some local motorists will find an interest in
the above picture quite apart from the car shown. "In case they notice the lady at the back, we may explain that she is married. She is Mrs. Helmar Liederman, who won & beauty contest in Alaska.
HIS SHATTERED INOL When a youth was summoned
OF WEIGHT. The amount of weight that can
A NEW MODE.. The first special Colonial model
of the Arrol-Johnston 17.9. h.p. five-passenger car, has reached arrangement with the agents. the Hongkong, and may be seen by Hongkong Hotel Garage. Special
this all-British production which features have been embodied in
makes it one the most attractive
and Salisbury Roads, one close attitude to get at the lighting annular ball throw-nue bearing, The valres are given a higher However, after the engine is Could & automatically lubricated by the lift, & quicker opening and clos-satisfactorily passed off test, the on the tail of another. Indeed, switch on the dash
Greater ming, the valve springs are strongericycle parts are taken in hand. one has to be something of an drivertake an instant-neon-stop clutch
for the Tent WIT oc and a large overlap which is ex-The frame is usually specially acrobat to cross the streets ut in such a case? We think mu". furt
cupants Fies been assured,tremely wasteful of petrol is built for racing, being as light. as; times.
Also the the change in in-trument board employed.
valve can be safely employed. It is Let us now take the case of the design giving more knee room. setting in conjunction with designed to transmit the power as drivers themselves. They ap
the magneto timing and far as possible without whipping! We think it will be generally
the type of carburettor used does for weaving and to steer as near The possible. agreed that if the peninsula proach each other, each being
Appearance has been enhanced not as a rule allow the engine to perfection hasn't too many buses, it has more or less dazzled and blinded: quite enough certainly in and by the others lights. Each dine by grouping the in-truments in run very slowly. The spark is handlebars are usually very low, at Ealing for having a noisy about the residential district. It and leaves a black void in front the centre, and the dash light timed to occur very early and for iso that when the rider is seated motor-cycle he said he bought would appear that the competing to which his dazzled 5 take being placed at the top of the slow running the spark control is he has to lean forward to hold the the machine secondhand, and,
accustom them-group makes night reading-nearly fully retarded.
this minimising wind thought it must be all right companies are too keen on con some time to
and giving greater because the last owner was a easily discernible. The princip-
The carburettor centrating their energies in selves.
used is control. The front forks usually policeman. al motor change is in comection! certain localities. Their one object;" seems to be to outdo one another.
In any case, dimming, aemost with carburetion, incorporating a special racing model, a great have shock absorbers fitted to DISTRIBUTION AND ELIMINATION
the Binks damp out sudden shocks (contrary Possibly in the long run they will drivers in Hongkong do it, is new air heating attachment, and favourite being
construction change in the Mousetrap." This has no throttle to the usual idea Brooklanis is put each other out of business, and absolutely ineffective. for this
There is also control and is not flexible. The not a perfect surface for speed, be pared off a standard car for then the community will lose af reason: Wher cars are far apart intake manifol·l useful service. If any are the beams are more or less con different spark plug arrange instrument is designed with the There are several lumps where racing purposes is far greater buses are to be permitted to run, verging and shining directly on ment. These changes give instant idea that the motor cycle to which the joints of the contrete slabs than the ordinary public imagine. they should only be put on feeder each car. (None dires), When the starting under adverse weather it is fitted will be all out for most have worn and cracked and a For instance, in a recent event and pronounes of its life: therefore, only an eir small bump is greatly magnified some 5 cwt. was eliminated from cars approach the hean Start conditions diverge. (Each dims). Therefore for ed increase in gasoline mileage control is provided for starting-lat speed. The writer has often a well-known car, partly by drill-in a London paper sees us!-"Far dim headlight in the city limits. They also offset to a marked de-The air control also roughly been off the ground altogethering the frame and partly by in the distance rises & sound that It has been suggested to as that we have these
advantages:gree the formation of carton and regulates the speed by destroying The wheels are carefully balanced lightening parts and leaving out drowns all others, and makes some of these Kowloon buses, and S, dazzle. The cars should be practically eliminate the fruling the correct mixture. In most so that when they are revolved everything that was not strictly speech and hearing impossible for
cases a pressure balancing system no part has a tendency to always necessary. In the particular event many minutes.
maniac or ■ fiend? car suffered cyclist-a those on the Aberdeen route as travelling less than 15 m. 1.: spark plugs.
is employed. That is a system to come lowermost, and the copes in question the well, do a deal of damage to the therefore dim lights in conjunc-
halance the pressure in tank, fuel are adjusted so that there is no heavily from back-wheel slip, Whether alone, disguised in over- roads through leaky tanks. Ation with the street lighting. any rate, oil and spirit can be should be quite sufficient. When decided improvement, and lines and carburettor. In the binding and no shake, and secu- owing to the fact that it was alls and goggles, or with a sidecar be greatly apold days riders used to use a huge rity bolts are fitted to preventiinished too late to allow the 10 and a few encumbrances therein, the roads, and these must have there is a more or less loss of preciated. is
accurs. Only one footbrake iswheels to be added. The designer and rattle. Nothing but Death ал advere effect on
tar control, and dimming as usually of a new type oiler which does give forced induction. It did to macadamised surfaces. This is practised in Hongkong is more or
away with the old fashioned con-a certain extent, but owing to the fitted and is carefully adjusted so had calculated that this weight can stop his mad career, but does
ΕΠΙ pressure
would have made just the differ- he stop his own ears with cat- the that there is no drag. Iventional grease cup. "Turning tremendous.
ence between the back wheels ton-wool? down grease cups" is an out of carburettor it forced the petrol!
slipping and gripping. date operation on the new back in the tank Nowadays
services.
propositions for those contemplat- ing the purchase of a new car.
COTTON-WOOL. WANTED.
Oh, to see ourselves as a writer
Is the motor
seen fairly well spattered about a driver leans forward to dim.one that will the installation air scoop which they hoped would tyres leaving the ring if a burst, gallon petrol tank and two spare never does he pass without a roar
a matter which should be looked less ridiculous.
into. The Aberdeen buses, also
car.
Lubrication
be adequately
very few!
with their solid tyres certainly cut up the road surface very Outside the city limits, full Hudson badly, as the condition of the headlights are, of course, neces-maintenance, can ToRds in and near that village)sary and the best type of glass, taken care of in a has again andagain demonstrated in our opinion, is an amber-tinted minutes with a pamp oil can These hard tyres soon ando much lens with horizontal steps which which is furnished as standard of our road-repair work. Cannot tend to deflect the light down-tequipment. their use for bussa on regular wards. daily service be prohibited?
*
attention as the dimming of head-
The exterior appearance of the The Dragon Motor Car Com-new Hudson emphasises still fur- pany, Ltd., at their show room ther advancement in beauty of "Probably no subject in the and Service Station, Wong Nei line. Deep crown fenders that motor world has received so much Chung Road, Happy Valley, are are really mud guards, have re- lights. To dim or not to dim- showing the new and im- placed the previous type. The proved Hudson Super-Six. Great-front fenders have aprons that has been the discussion furiously er economy and reliability, and extend to the extreme front end! waged since the time when even smoother performance have of the spring hangers. There is modern searchlight headlamps been secured by important im-a splash apron placed between came into use. Various methods of provements which have been the front spring horns, which not tackling the dazzle problem have made "under the hood."
been evolved, but all who imotor!
know how futile most of them are.
only adds to the appearance of the car but also affords further protection. An improvement has
There have been glasses of all The admission of a much more has been made in the top curtain shapes and colours, frosted bulbs perfect mixture to the combustion arrangement, giving still better and specially shaped reflectors chamber is secured by a re-weather protection. It is a new and bulbs cowls ad infinitum, but designed intake manifold. The Hudson with many refinements still we are dazzled.
Iclutch thrust bearing grease cup and noticeable improvements.
(To be concluded nect week).
THE SPEED MERCHANT.
A striking picture of a car rounning a comer on two wheels during the Mont Ventoux race in France.
NEXT T. T. RACES
The A.C.U. Competitions Com- mittee has decided to recommend to the General Committee that there be four T.T. races next year, and that the solo classes be for machines of 150 c.c. 250 c.c. and 350 c.c. and the passenger ma chine class 500 c.c. The Motor- Cycle has for some time urged that 350 c.c. be made the limit for solo machines in the Tourist Trophy races. It is likely, how- ever, that the first class will be laltered to 175 c.c. in view of the {decialon come to at the recent F.LC.M. meeting at Dinant. It will be noted that the fourth sug-: gested race is to be for passenger ⠀ machines; not for sidecars only. This may mean the introduction of Amall speedy runabouts, a bypa offering possibilities but which has not yet been developed. The dates suggested are June 21st to 28th and