The Brookings register. [volume] (Brookings, Brookings County, S.D.) 1903-1971, 1915-05-27

nile tnlS StllfDcSS may be In any
of the joints OF the linkage operated by
the spark lever, 1t Is most likely that
the breaker box Is too tight a fit, so
that when the motor becomes heated
fits causes 1t to stick. Disconnect the
breaker box from the linkage and note
whether it moves freely. If 1t does
not, remov 1t and rub the interior
surface with emery paper until enough
material has been removed to allow it
to work freely.
Is tho compressed oxygen method
satisfactory for cleaning carbon out of
cylinders 80 that tho ~pistons and valves
will be thoroughly cleaned, or is dis
assembling engine and scraping the
different parts necessary?
Removing carbon from the cylinder
by the use Of compressed oxygen Is en-
tirely satisfactory and highly to be
recommended. However, it IS some
thing that Is best done by n garage, as
1t would hardly pay you to buy an out-
fit just for yourself. The carbon is re-
moved by burning, and the reason Oxy-
gen IS used Is that carbon, or any sub
stance for that matter, will urn about
five times rs readily In oxygen rs IN
ordinary air. Thus carbon will burn
with the rapidity of cellulOid in an at.
mosphere Of oxygen, yet the incrusted
carbon cannot be ignIted when expos,
ed to the ordinary atmosphere.
The operation Is simple. One Of the
valve caps and also the spark plug II
removed from each cylinder and the
piston Is brought to top dead center.
Then the cylinder Is filed with Oxygen
gas and n piece of cotton waste is
AS long rs there Is any carbon to be
burned oxygen Is supplied to the cylin-
der. The reason that compressed oxy-
gen Is used Is so that a great quaint
ty of gas can be stored in a container
Of n given size. The oxygen gas il
never used under pressure In the cyl
inder.
How can I make tire chains last
longer7
Upon examination of an old chain 1t
will be found that all the wear and
strain are on the link upon which the
cross chain Is fastened.
When a cross chain wears through
and breaks it will be found a good
plan to fasten it to the link ahead of
the one 1t was previously fastened to
and to continue said operation until all
the cross chains have been changed.
Is leakage from cylinder rings into
crank case caused from the rings not
being worn to fit cylinders or is it
faulty rings7 Also, when Is fuel con
sumption the greatest, in climbing hills,
in high or low gear?
Leakage is most likely due to worn
rings, or 1t may be caused by the split
ends OF the rings being In line and in
this way affording n direct passage for
the gases. Before the rings are worn
enough to perfectly fit the cylinders
there may be n slight amount of leak
age-that Is to say, the rings will
not hold the gas in the combustion
chamber quite as well as they will
when the rings have become worn to
perfectly conform with the shape Of
the cylinder, but the extra amount of
gas is so small that it is hardly worth
while to consider 1t as a leakage.
The fuel consumption is greater
when running on low gear for two rea-
sons-the motor efficiency is lower and
there is u power loss due to the four
extra gears In the gear set that the
driving torque must be transmitted
through. The motor efficiency Is re-
duced for the reason that when climb
ing a certain hill on intermediate or
low gear that might be climbed on
high the throttle opening required for
a given speed Is less. This means that
the actual compression In the cylinders
Is correspondingly reduced and reduc-
ed compression lowers the efficiency.
Needless to add, the lower the eficien-
cy the greater the consumption Of fuel.
Can gas such as generated from car.
bide be used In an automobile ensine7
Yes. Occasionally we hear Of a mo-
torist driving home on ~acetylene gas
when his supply Of gasoline is ex-
hausted. The objection to the use Of
this gas Is that 1t is much more ex-
than gasoline.
notice that in the racing events the
cars use castor oil as q motor lubricant.
What advantages other than less smoke
has this oil?
Castor oil has a greater viscosity than
any other oil used for motor lubrica.
ton at the high temperatures expert
enced In racing motors; therefore It
helps to prevent the passage of the
gases past the piston and the dow of
the oil up into the combustion cham
Der, where 1t would burn and cause
smoke. Since very little Of the castor
oil makes it's way up to the combus-
ton chamber there IL very little that |
ID burned. but most Of II Is used for
fabrication. with the secondary advan-