Evening capital news. (Boise, Idaho) 1901-1927, 1919-03-02
Too Prone to Neglect Castings !;
overloads His Tires a. Gem
eral Rule; Another Fault Is
Differentiation.

Il Il unfortunate that It Is necessary
20 warn the average American who
owns and drives a motor car not TO
waste money in tires. But that Is ex-
actiy what the said average car owner
does. He literally throws away good
ly number Of his hard -earned dollars
every year through failure to get the
mileage from his tires that is in them.
In the aggregate. this wastage amounts
60 millions Of dollars every year, so
that any educational campaign, any
means Of pointing out to owners their
mistakes in this particular Is direct
contribution to our national prosperity
The failure that causes the greatest
loss in tires is underinflation. The big
tire companies are unit In agreeing
on this. It is for this reason that all
che tire manufacturers are SO careful
60 instruct their patrons in the air
4ressure needed by any given size Of
tire II the pressure is permitted to fall
even five points below that proper fig
ure it is bad for the casing. obviously
ten pounds is worse and below that is
Atrocity to tires.
RESULTS OF EDUCATION
Through education car owners are
Becoming a little more careful about
actual underinflation, but very few of
them realize that all the effects Of I'M
Nerinflation may be produced in quite
other ways. For instance, suppose a
AKA inch tire is designed to carry a
load of 900 pounds. If 1900 pounds are
loaded on this tire, we have. all the eff
Gects Of underinflation though the pres
uure is actually at the designated
poundage. OF course, it is impossible
to ask a car owner to weigh his pas
Oengers as they take their seats in his
vehicle, nor is it possible to avoid car
rying an overload in cases of emer-
gency. but it is possible to avoid habit
Oal overlooking. Simply do not carry
seven passengers in a five passenger
car, not four passengers in a small
roadster. And If it is necessary to
carry considerable overload for an
extended run, 1t Is not difficult to in
crease the pressure in the tires to care
Tor the added weight.
II cuts in the rubber tread are allow
I'd to remain open, dirt and water and
even stones are able to work their way
into the fabric base. The water rots
this and a blowout is the result. Dirt
and small stones entering cut force
their way along the fabric, separating
the rubber from the cotton cloth as
they go; again the result may be a
terrific blowout, sometimes half way
around the casing. The only remedy
Tor this is constant watchfulness and
plugging Of small cuts as fast as they
appear. Larger cuts, over half an inch,
must be vulcanized without delay
A word as to the modus operandi OF
tire tmending may not be out of place
The cut to be plugged or vulcanized
must always be thoroughly cleaned in
the first place. A cloth soaked in gas
oline Is the best medium for cleaning
the cut. II it is a deep one the cloth
may be used on the end of a screw
Ariver. After the cut and the surround
ing area has been thoroughly cleaned
and Is dry, a coat of cement is applied
60 the sides and bottom. After this has
dried another coat is put on, and wher
this has dried the tire filler is applied
"A bit of the filler is worked into the
cut with the blade Of knife or a screw.
driver. In case the tire must be uset
on the road Immediately. small piec,
OF cloth or paper should be cementel
over the repair to keep dirt from being
picked UP.
KEEP WHEELS ALIGNED
Another common cause Of tire failur,
10 found in misalignment of the from
wheels. This condition sets up a scrap
A. - L.