Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1916-09-23
knowledge Of Their Cars Would
Save Motorists Money
Say Garage Men

are dozens ignorant OF everything save
the control. They know how 10 start
il and stop it But they know almost
nothing about the proper care of the
machine. Only the other day, for in
stance. a dealer told of man who
had bought powerful car and who
was totally ignorant of the fact that oil
and grease played important parts in
its running. When he was towed In
4 few days later with a badly damaged
engine he said he had thought that
little things such rs lubrication were
arranged before the car left the fac
tory, and that all he had to do was to
keep the tank full Of gasoline. Repair
men state that II private drivers had
more real knowledge of their cars, and
applied Il, more than three.fourths OF
the repair business would fall away.
OF motor car abuses. improper lubri-
cation Is probably the most common,
according to Motor Print. Which is a
little strange, considering that keep
ing car oiled and creased is one OF
the easiest of attentions 1t requires.
The motor Is q mechanism which runs
at high speed and high temperature.
1t contains many rubbing surfaces. In
order to keep these surfaces from
burning each other, It Is necessary to
separate them by q film Of OIL.
oillng Probierns
If the, l1bricating system Is in good
condition and the oil Of the right con.
sistency, this protective film will be
automatically provided This applies
to all the surfaces, such as pistons,
cylinder walls, crankshafts. rod pins,
bearings, camshaft bearings. push
rods. push rod guides, and even to the
gears. The teeth OF the meshfng
gears, of course. are not spaced to rub
against each other, but to have simply
rolling contact, However, 1t is inn
possible to attain this degree Of per-
lection in practise and q certain
amount of rubbing does take place,
due to the fact that the teeth cannot
be scientifically correct.
The seyerest test, Of q MbricatIng
oil is found in ilubricating the pistons
and cylinder walls, especially at the
upper end of the stroke. At the
moment OF combustion the tempera-
tNre is above 1000 degrees Fahren-
heit, and both pistons aud cylinder
walls are exceedingly hot; therefore
it is necessary to use an oil which
win stand this Temperature, neither
yaporizing nor burning.
II the oil is too thin or has q
tendency. to- yaporize sor burn, these
high surfaces viii be improperly Iuhri.
Gated, increased friction viii result
and finally. the film OF, oil may disap-
pear entirely, with the result that
rubbing between the two surfaces viii
occur and the parts shortly will be
ruined. There also is possibility,
when the piston becomes heated that
It win expand until 1t fills the cylinder
bore and becomes sealed.
Selecting Lubricant
{ II the oil Is not clean, Il it contains
grit or dirt of any sort, it will rapidly
wear away the metal parts, the grit
acting as an abrasive. OIL Is liable
to contain not only grit and free car
bon, but also q certain amount -0f
gasoline, and In many cases, water.
The gasoline thins the oil, making it
incapable Of resisting the pressure
between the rubbing surfaces, and
wear increases. As many men neglect
to fill the oil reservoir often enough,
It is good plan to make a rule Of
doing 1t every day, so that there will
be very little chance of the car being9
run for several days without adding
oil.
The moment the sighted shows
that the oil Is not circulating fast
~
before the car is run any further. II
this Is not done there is danger Of
the surface going dry and becoming
burned out; and scored bearings viii
be the result. Keep your oil tank
filled and be sure the lubricating sys-
tenn is working properly. II you use
too little oil your car viii suffer; IL
too much you are liable to smoke"
and lay yourself open, in the cities. at
leaat, to arrest a
Parts Neglected
The greatest abuse of the lubricat-
ing system. however, does not occur
in the motor, but in the other parts
Of the car. The majority Of owners
are educated to lubricate the motor,
but they often leave the rest Of the
car until II actually complains. A
great many, drivers consider that so
long as the car lasts IL viii continue
to run and that il does not need at.
tention of any sort whatsoever. Ex-
of the ears In garages In
various parts OF the. country shows
that grease cups. gear boxes and DIFF
ferentials lack attention. In par
ticnlar, of course, Is this true Of gear
boxes. because they are inaccessible
and it Is disagreeable task to screw
them down. g.. ~
It is better to use too much grease
than too. little Many of the parts
will apparently run indefinitely with
cut it, and many owners will form the
that the grease cups were
put on merely for ornament, but they
will pay for their neglect In the end.
because the inattention will result In
the wearing ont of these parts faster
than they should The spring bolts,
gear and connections soon be-
come loose aud rattle disagreeably
when they are not properly supplied
with grease. On the other hand, when
they are well fabricated they should