El Paso herald. (El Paso, Tex.) 1901-1931, 1914-03-07
Copyright, ~, by VI. 81 Stewart. L.
bonization Of the cylinders would, Of course
aggravate this condition.

! bonization of the cylinders would OF course
aggravate this condition
Motoring Department The Herald-ln
looking over a number Of new cars OF
various makes I find that different makes
have different ways Of attaching the self
SUI lhe device On some the seIL-s1aI ~
switch is attached to the steering post. IN
others ii is operated by foot pedal Whlch
device do you consider most practical? An
answer will be OBSERVATION-DISCLOSURES.
1t makes little difference whether the
starting button is operated with the foot
or the hand. Both accomplish the same
toIllecllon- IN congesJed dlslrlcJs WneIS
the car must be left at times alone Il
would seem an adyAntage to have the start
ing lever secluded as much as possible uh-
less same can be locked It is a matter OF
opinion, however, and should hardly iutiu-
ence a purchaser.
Motoring Department. The Herald-Ny car
IS equipped with electric lights which are
led from storage battery. The battery
IS charged by generator which IS driven
by belt. I have a great deal of trouble
keeping my battery charged Every once
IN while have to take it out and nave
1t charged at some garage The generator
appears to be in good condition and, II
seems to me, should generate enough cur
battery is worn? Can you suggest any way
l can overcome this annoyance Arthur
Brewer.
Perhaps the driving belt is considerably
worn and needs replacing. II the belt Is
old, and not tight, the generator viii not
be driven at full speed, and as a result the
battery will not be properly charged
Woulo suggest using a liberal sized "
shape" belt and having this tight
Motoring Department. The Herald-C)
What is the best method Of determining the
horsepower OF a gasoline motor? % what
oil? 90 What is the flash point of most
best best grades Of oils in comparison With
d A simple formula for practical use is
''The square Of the bore, times the num-
%"
This formula has been officially adopted
by the National Automobile chamber Of
commerce 1t Is a fair, conservative rating
for a fOur-cycle motor, running at 1000 feet
per minute piston speed However, If
very accurate rating must be obtained a
number Of other factors must be considered.
For instance the bore stroke. compression,
ratio, number Of cylinders, cooling facilities,
compression chamoer, dlameters ana
lengths Of bearing surfaces, etc. In fact,
there are q great number Of factors which
enter IN determining the actual horsepower
delivered at the shaft. In considering all
these elements. d complicated formula is re-
quired. For this reason the National Auto
mobile her of CONNIE rca a1oD+ad tho
above formula for practical purposes.
2 The flash point Of an oil is that tenn
able vapors.
3 A good grade Of cylinder oil should
possess a flash point Of not less than $50
degrees Fahrenheit
The writer has not tested the flash point
Of "Polarine Oil"
Motoring Department. The Herald am
thinking Of installing a magnetic on my car
At present I am using batteries and coils
which give considerable trouble There is
a place on the right hand side Of the motor
where magnetic MAJ be driven direct from
the pump shaft What I want to know is
this:
Is it necessary to put q flexible coupling
between the magnetic shaft and the pump
shaft2 There is just room enough to hook
the magnetic direct to the pump shaft, but