The Oskaloosa herald., 1915-12-16

transmitted through the timer?
High tension currents are not dis
tributed through the timer. The cur
rent passes from its source to timer
and then is stepped up to a high volt
age by transmission through the pri-
mary winding of an induction coil.
whence 1t is sent distributor,
which transmits 1t the spark plugs.
Can you give me a way TO calculate
the power of motors to determine the
exact brake horsepower?
1t is impossible to calculate accurate
ly the horsepower Of motor by for
mula. If this were so the formula
would have to include every possible
variable, because If it did not it would
be incorrect for every value of that
variable except one. Since the power
developed by q motor includes such
things as cam contours, manifold and
port designs. shape Of combustion
chamber, tightness of piston rings, fric-
tional horsepower, losses through the
bearings, ETC., it is obvious that IA
formula which can furnish brake horse
power Is impossible.
Are there different grades of pIati-
mum points for nnagnetos?
Where platinum is used the only diff
ference in actual grade is In the varia-
ton of the percentage of alloying sub
stances used and also IN the thickness
Of the points. In some cases the plati-
mum is very thin.
have a great deal Of trouble in
starting my car. II seems to be the ig-
milton at times. ! can start the car by
cranking only at certain times, and
then again | need only to press on the
short circuit button. At other times |
need only to throw the switch over on
the magnetic and back on the battery to
start the car. When it will not start
by oranking it will start by pressing the
button, and sometimes when it is not
right to start by pressing the button il
will start by cranking. What would
you suggest as a remedy
Going over the symptoms of your
llOublCg ~ "Oulu that IL AhleShl bG
due to any one of four causes. These
are % gasoline line to carburetor clog
ged or float valve stuck; (2l water in
gasoline, try cock on carburetor and
tank; 81 carburetor adjustment too
lean for starting purposes, and III i'm.
proper carburetOr dash adjustment
This should be set to choke air from
the carburetOr.
IL after going through all the above
possible causes you do not locate your
trouble it is suggested that you exam
inc for air leaks the joints of the car
buretOr, intake manifold, valve stem
and guides and look for porous cast.
ings. All these joints should be absO-
lutely alright Examine the spark tim.
ing and the strength Of the spark. See
that the valves are properly, adjusted
and seated or. In other words. that the
compression is good, and then see that
all wiring connections are tight
If you have gone over all the above
carefully there is no doubt that you
will locate your trouble. In inspecting
for wiring difficulties you should begin
at the switch, carefully examining the
switch bars to make sure that a good,
clean contact is being made between
the segments; also trace all wires lead.
ing from the coil to see that there are
none broken beneath their insulation
or the insulation worn off. allowing
them to come into contact with some
metal part of the car. causing a short
circuit. The wires should all be secure
ly fastened to their respective termi
mails. The breakers should be exam
utter contact should be free from dirt
and making a good positive contact
The spark plugs should be examined
for broken insulation, ETC.. and here
! also the gaps should be set at OOPS Of
an inch. If you find that the trouble Is
in the coil or magnetic 1t would be bet
ter not to attempt to repair 1t yourself
Does the oversize tire, 81 by 5 as
against SO by 4La, really return the val
ne in increased wear2 What is the eff
feet on the speed and power Of the car
oversize equipped? >..
The oversize tire generally returns to
the purchaser in added mileage more
than the difference In cost between
] that and the straight size tire. The eff
feet on the power and speed of fairly
large car due to the use of oversize
tires would be hardly noticeable.
| ..-e, b.. -..4
I have installed a printing device on
my car, but il does not seem to faeili-
tate starting. Would batteries be Of
: assistance?
! Possibly the trouble is caused rather
by the spark being too weak. than by
an imperfect mixture. Some of your
wiring connections may be loose or
your magnetic may have become de-
magnetized. Drop little gasoline into
the intake manifold and crank the mo.
tor so as to draw the charge into the
combustion chamber. where II will ex-
plode II the spark Is normal, A point
! to be remembered is that too much gas
ollne In printing is worse than too
little. 20 at ~
As for installing batteries to render
starting easier. this would. of course,
meet starting requirements more read
! iIy thnuOh of courGa if yyn1ld anfaIl