The Breckenridge news. (Cloverport, Ky.) 1876-1955, 1915-07-28

cylinders when a motor is worn or is
Il better to get new pissons and rinss7
All depends upon the condition Of
these parts. Sometimes 1t is advisable
to regrind the cylinders. which Is the
case when they are worn oval. In this
case the fitting OF new pistons is diff
ficult job, and the previous troubles
would return again. If the cylinders
retain their circularity, then new pis-
tons and rings may be fitted.
Is il good plan to place graphite in
the crank case with the regular oiI7
Graphite shows excellent results
when used as lubricant for the mo-
tor. Its action is one of a filler, the
minute holes in the cylinder being fill
ed in with the graphite, thus reducing
friction and wear. Some owners use
ordinary flake graphite, while others
prefer the detlocculated form.
There is a swishing sound issuing
from the neighborhood of the right
front wheel Of my car when it is in
motion. It seems to occur once every
revolution. What can be causing it7
There are two very likely causes Of
such a noise. 1t may be due to the
speedometer gears meshing too tightly
or the demOuntable rim has wedge
loose Jack up the wheel and rotate
it slowly, and you can soon determine
whether the gears are too close IL
this il tIp on IA Ipnsau nm tho TINT
carries the driven gear and move the
gear only far enough away so that the
noise is eliminated. If the trouble Is
not found in the speedometer gears
tighten up the wedges on the rim.
One loose wedge will make n noise
similar to that you have described, due
to the lack of support at this point.
What, in your opinion, is the best way
to crank motor, with the throttle
open or nearly closed?
1t is preferable to crank the motor
with the throttle only opened small
amount. say an inch or an inch and
a quarter movement on the quadrant.
With some carburetors it is impossible
w SNlhl thC W llli Tue luIOllle
wide open. while with others it is gen.
orally done with difficulty.
have always been bothered with
motor knocking when throttle was
opened on hard pull, necessitating my
retarding the spark to the extreme lin
il, and that, of course, reduced power.
J have been told that it was caused by
too high compression. Will il help
matters to reduce compression by rails
ing the cylinder and placing a plate
beneath to make a larger compression
space?
The high compression reason which
has been assigned to your case is very
possibly correct, although it might be
that carbon trouble is at the bottom of
the difficulty. If you have noticed that
the knocking continues even after the
motor has been cleaned of carbon 1t Is
probably due to the high compression
or to loose connecting rod, wrist pin
or crank shaft bearing or part. 1t is
never Il good idea to reduce compress
sion until you are sure that it Is too
high, and ii will be better to have this
measured by gauge and see what 1t
really is before attempting to cut it
down by means of plate. A COM
preston pressure of seventy pounds Is
sufficient, and for ordinary purposes
you should not have higher than this.
If it is below this reduction of COM
preston will reduce the power corre-
spondingly, as it influences the mean
al Pas In. H..
II motor is equipped with a high
tension magnetic, does each cylinder
receive alternately one effective spark
and one surplus spark?
The ordinary four cylinder high ten
sion magnetic only produces sparks
when required-that is, at the begin
ming of the working stroke. Such
magnetic produces spark every half
revolution of the armature, and there
fore by connecting 1t to the motor so
that 1t revolves at the same speed Just
the right number of sparks are gen.
Grated, since four cylinder, four cycle
motor requires spark every half rev.
olution. These sparks are distributed
to the proper cylinders in turn by
means OF rotating brush which makes
consecutive contact with the four seq
ments which are connected to the high
tension wires running to each of the
four cylinders. The distributor runs
at half the speed of the armature, and
the two are positively connected by
gears. The two are so set that the
brush is In contact with one OF the
segments when the breaker points sep
arate and the spark occurs.
Will you kindly give me any informa-
tion you can on soldering aluminium?
Aluminium is soldered by the use of
a blowtorch. A solder which may be
used without a fiux Is composed of
seventy-five and five-tenths parts of
TIN, eighteen parts OF zinc and two and
hve-tenths parts of aluminium. The
parts should be slightly heated before
applying. The solder should be forced
Vala