Evening capital news. (Boise, Idaho) 1901-1927, 1916-10-22
foul roads to give the left wheel the
hardest track when pulling in low gear
7 & w

All differentials are designed to de-
liver equal power to both wheels When
rear wheels are lacked up a slight
drag on one wheel, such as brake drag
ging or tight bearing, would cause
one wheel to run more slowly or stop
while the other ran forward. If the high
speed is used it drives the differential
with so much more force that 1t over
comes the resistance and both wheels
run forward. You may prove this by
holding one wheel while he gears are
in high speed. You will find the free
wheel will run twice as fast. This is
an essential feature of the differential
as it is designed to drive both wheels
at the same speed while going straight
and at different speeds while turning
corners.
Motoring department-Would thank
you for answering this in your column
next Sunday:
I have a 1915 For, runabout. On
opening the cutout one of the explo-
sions is much .ouder and heard dis
tinctly above the others. This Is more
noticeable after the car has gained
speed. Motor misses considerably I'M
til thoroughly warmed up. However, 1t
then runs evenly. A new set Of spark
plugs has just been put in. What causes
this, and how should it be remedied?
H. F. B.
The trouble may be in one of the vi
orators or coils which does not give as
hot a spark as the other. 1t may be
leak in the inlet manifold, giving
some cylinders a defective MIXTURE
Spark gaps may not be set right in
plugs. BY going over these points care
fully you should be able to remove
the trouble.
Motoring apartment Now
that winter is coming on I should like
to know what Is the best preparation
on the market to prevent the water
from freezing in the radiator. Are any
of them injurious? If so, how can
tell which ones are injurious and
which ones safe? r. NJ. G.
There may be anti-freezing mixtures
for sale which are not injurious, but
| most of them contain calcium chloride
which eats away the solder holding the
radiator together. Glycerine is used
by some, but 1t rots the rubber tubing
The only thing we can recommend is
denatured alcohol in the proportion of
one to three. Measure the water in the
cooling system and you will know how
much alcohol to put in. Be careful OF
leaks, never fill the radiator quite full
and add alcohol occasionally, as 1t
evaporates readily and must be re-
| placed.
Motoring department-Please let me
know how to stop a leak in a radiator.
1t keeps dripping all the time and
have to refill it two or three times
day. A. C. NJ.
You fail to state what type of ra-
diator you have. A cellular radiator
may be repaired temporarily by plug
ging both ends of the tube with a piece
of cork If the leak is at the surface
where 1t can be reached a drop of
solder may be all that is necessary. A
tubular radiator Is hard to stop leak
,, ing, but your supply dealer has prep
aration which Is to be dissolved in hot
water in the radiator. AS it leaks out
1t gums up the leak. Some use tea
spoonful of linseed meal, but 1t is apt
to cause the radiator to clog AS soon
as possible the radiator should be prop
erly repaired by a competent work
man.
Motoring department-Theb breathing
tube on my engine let's out a lot of
gas, but doesn't seem to take any in.
Is this anything serious? Please tell
me what a breathing tube is for.
r. N. L.
| The breathing tube IS to let the air
into the crank case and let l. out again
as the pistons move up and down, so
as to avoid back pressure against them.
If there is much air coming out 1t shows
that the ges is leaking by the pistons.
On an old motor this Is the result of
wear. On a new motor the piston rings
are probably gummed. Test motor for
loss of compression. Piston rings may
be loosed by pouring in half a tea
cupful of kerosine and cranking the en-
CINE. A worn cylinder can only be re-
stored by grinding. This also, will re-
quire a larger sized piston and rings.
Motoring department. have been
advised to paint my tires with some
one of the white paints on the mark ct
for that purpose. Please let me know
If it will prolong the life of the tire,
as some claim. +. T. h.
The paint you mention serves mere
ly to cover the outside of the tire and
to improve its appearance, but can have
no effect on the interior. 1t does not
! even close up the small cuts in the
tread. Its main purpose is to add to
the appearance of the car.
Motoring department. find II diff
cult to start the motor these cold
mornings. Can you give me some
cold weather hints tfat will help get
the engine started? I would appre-
ciate them very much, as l have no
starter on my car and do not enjoy
/ spinning it, @. C. r.
The following hints may help you: If
printing is not sufficient, warm carbu-
refer by wrapping hot cloths, wrung
| Out in hot water around the carhurefer