The Brookings register. [volume] (Brookings, Brookings County, S.D.) 1903-1971, 1917-04-26

- k1O
mula. II this were 30 the formula
would have to include every possible
variable, because II It did not It would
be incorrect for every value Of that
variable except one. Since the power
developed by a motor includes such
things rs cam contours, manifold and
port designs. shape Of combustion
chamber. tightness Of piston rings. fric-
tional horsepower, losses through the
bearings, etc., 1t Is obvious that a
formula which can furnish brake horse
power Is impossible.
Arc there different grades Of plati-
nun points for magnetos?
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 is-
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 I
need only to throw the switch over on
tho magnetic and back on the battery to
start the car. When il will not start
by cranking it will start by pressing the
button, and sometimes when it is not
right to start by pressing the button it
will start by crankine. What would
you suggest as q remedy?
Going over the symptoms Of your
trouble, 1t would seem that It might be
due to any II Of four causes. These
are ID gasoline line to carburetor clog
ged or float valve stuck; e, water III
gasoline, try cock on carburetOr and
tank; 90 carburetor adjustment too
lean for starting purposes, and ID i'm
proper carburetor dash adjustment
This should be set to choke air from
the c%arburetor.
If after going through all the above
possible causes you do not locate your
trouble 1t is suggested that you exam
Inc for air leaks the Joints Of the car
OulttOI, lllldhc uiullllOlu, NdlNc Sttll
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, thai 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 hat 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 n 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
nails. The breakers should be exam
ined and set at OOPS, and the distrib-
utter contact should be free from dirt
n 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. II you find that the trouble Is
In the coil or magnetic 1t would be bet.
ter not to attempt to repair 1t yourself
Does tho oversize tire, 81 by s as
against SO by 4Na, really return the val
ue in increased wear? What is tho ef-
feet on the speed and power Of thu 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 &c
feet on the power and speed of Il fairly
large car due to the use Of oversize
tires would be hardly noticeable
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 il 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 a little gasoline into
the intake manifold and crank the mo
tor so as to draw the charge into the
| combustion chamber. where 1t will ex.
plode If the spark is normal A point
to be remembered Is that too much gas.
oline In printing Is worse than too
little.
AS for installing batteries to render
| starting easier. this would. Of course.
meet starting requirements more read
lily. though. Of course. 1t would entail
additional expense.