The Oskaloosa herald., 1916-08-10

ready for the ground color, which Is
a fat color put on to give a foundation
for the color varnish. 1t should, of
course, be Of shade to correspond
with the desired final appearance of
the car. Then a coat of color varnish
is applied, and after dry the rubbing
with rubbing stone and water is again
In order. Finally put on a coat of
clear finishing varnish that is Of the
right shade 10 correspond with the
color This is lengthy procedure and,
of course, could be simplified if you did
mot want a very fine finish. However,
III the above directions are followed
the metal surfaces should look like
new.
My magnetic does not distribute .
very strong fire to the plugs. At times
| can start the motor easilyi then,
again, ! have a hard time starting It.
Can you tell me what is the matter?
Probably the magnets have become
weak. Take the magnetic, to repair
man who knows how to do the work
and have the magnets renewed. IL
there is no shop in your town where
this can be done ship the magnetic to
the factory.
What causes sparks to appear in the
brush holder assembly when the throt-
tie 10 opened about halfway: is this
harmful to the generator?
The sparks probably originate from
l,,tx, ,N.A.
brush adjustment. This should be rem
edied at once.
have been having brake trouble due
to too small brake drums. The drums
are only 1919 by inches and are much
too small for 1900 pound car. want
to equip it with 16 by 2 or 2Ia brakes
If it is possible to obtain pair of this
size drums bored for two inch hubs.
1 ! can do the fitting and think | can
! work over the old brake connections
! without much expense. What do you
! think of this plan2 s ~
! 1t would be entirely practical to do
J. this, although we do not know where
you could get such a set of drums al
ready made. 1t is probable that you
would have to have them made TO your
order. Remember that you do not
want to get them so large that they
will interfere with the road clearance
of the car.
Do you recommend removing carbon
| while NE engine is running by means
/ of warm water slowly fed through a
4 A.
| fold?
We do not believe that this would
have very beneficial results, although
it would do no harm. Warm water
would not serve to dislodge much Of
the deposit.
What is a universal joint, and what
| 10 it's user
! A universal joint is a connector be-
tween two shafts, allowing them to OPP
crate at any angle to one another with
In practical limitations.
Would it be practical to build a two
! cylinder opposed stationary engine
with both cylinders firing at the same
timer
1t would not be practical, although
it could be done. By having both CYL
inders fire at the same time you would
have the same effect as single cylin-
der engine of size equal to the sum
of the two cylinders, and then this i'm
pulse would have to carry the engine
through two revolutions. So the cyl
inders should be arranged to fire alter
nately in order that there be an i'm
pulse every revolution. By firing both
at once you simply defeat the purpose
for which you have two cylinders.
What is the meaning of brake horse
power and piston displacement?
Brake horsepower is that measured
at the fiywheel of the motor and is the
useful work done by it. Piston dis
placement is the total cubical area of
the cylinders between the head of the
pistons, when at their lowest point,
and the top of the cylinders. g.,
Is kerosene a practical substitute for
water in the radiator of carr Would
it rot the rubber hose conneetions2
| Kerosene alone in the cooling system
soon would cause overheating of the
motor. Besides, dangerous gases would
be generated, and no doubt the water
connections, If made OF rubber, would
be affected. Kerosene mixed with wa
ter in the proportions of two-thirds wa
ter and one-third kerosene has been
tried, but the results obtained were
not as good as with alcohol and water.
! Will you kindly describe the process
of tapping piston rings in cylinders?
In the factories the piston rings are
Tapped in on the pistons, and in most
cases this simply means the running
of the engine for several hours by ex-
ternal power Usually belt from an
overhead drive shaft is placed over the
fywheel and the engine driven thus
until all parts are run in. Tapping In
the rings In repair shop should be
done in the same way Assemble them
on the pistons and while using a good
supply OF oil drive the motor BY exter-
lnal power for several hours Il possible.