South Bend news-times. (South Bend, Ind.) 1913-1938, 1918-01-06

advantage in connecting the battery
and magnetic plugs on a - sys-
tenn? The object is TO get two
sparks in the cylinder instead of
one. Would there be any marked
increase in power or saving in gas
and what would be the objections
TO this method. if any2 I tried it
with battery disconnected and il
seemed TO work all right, but l i'm
asine. If IL was any great improve
meut on the - system for 1913,
some one would have found it out
/ before this, and / notice they use
a single plug in the 1914 system.
y
I Two sparks are often better than
one. But whether so or not depends
on many things. The position Of the
spark plugs, the quality OF the mix
ture, the heat OF the engine and
many such factors enter. In a hot
engine with high compression the
mixture is practically at the self-ig-
milton point and only needs a spark
TO add the little start A second
spark would be of little value in
such a case. But with a cold engine
.
tage 10 have a second spark some
distance away from the first. so that
+ the mixture may be set on fire at
I two places at once. You can see
/ this if you experiment with rub
| bish piles With easily burned ma
/ terial you get it afre all over al
most before you can get it lighted
\ at another place. But if slow burn
ing it helps much to light it at
I second place. Most drivers find so
/ little advantage that they do not
care to waste battery on the second
/ spark. Better be sure that your
mixture is right.
/ Motoring Department, TIE News
/ Times: / have a 80 h. D. car and
have had trouble with same; motor
still running after the switch is
turned Off Now, the water never
bOils and I have cleaned the carbon
out of the cylinders, also the parts
around the valves, and it still does
! il. PistOns have all been cleaned off
and are as clean as the day it was
made; also have gone over the time
of firing and the time of the valves.
and they are all o. X, according to
! hywheel marks. The water has
never boiled at any time, but when
\ turn off the switch it win still run
and pound. Now have had this
motor down several times this year
and have never been able to do any
more with it after 1 get il down
\ than before. 1 have done every
/ 2 &c
er been able 10 do same any good
Also, the engine will pound on Il
hill with the spark retarded or on
the level. Now, 1 have gotten rid
of that by giving her a little rich
mixture, but then have never been
able to do anything with her when
you open her full. Have a model
/ "B" Stromberg carburetor on the
motor. and if the carburetor is set
where she runs right then she will
pound when you first start her TO
pull hard on a retarded spark. She
has no loose pins. Her wrist pins
are O. X, but after you coax her a
I little and get her going she will
quit pounding, and then you can
advance the spark TO her full capac-
]
ment The motor seems 10 have
plenty of power. but would have
more If you could advance the spark
on a hill; not n full advance, but
part way or something like half
way, and what surprises me. the wa
I ter has never boiled. Also would
like to know what ! could put in a
radiator TO dissolve the lime in the
radiator, or 10 put in the radiator
and clean out the whole water sys-
tenn and get a clean water circu-
lation G.. NJ. II.
Your trouble probably is caused
by too much compression. The
heat of the engine plus the heat of
} compression when taking full
/ charges is sufficient 10 cause igni-
ton. The remedy is to lift the cyl
inders and make the valve stems on
push rods longer. 1t is assumed that
the engine behaves that way even
. when clean inside. There may be
exceptions TO this advice. however.
If some spot IN the cylinder is not
properly cooled it may be the cause
of the trouble. but his is hardly
likely. Any such spot will coat
over with carbon almost immediate
Is and can be noticed when you
I clean out the carbon. Usually the
center of he piston head Is the first
place to coat with carbon. If it
pounds, il seems TO pre-ignite, and
this is very hard on the engine.
Motoring Department, The News
Times: Describe the adjustment of
clutch on LOzier 1914 model. 1t
slips very badly. We have trouble
starting same of late. She has d
high spark, good compression, new
OIL in crank case, but printing with
warm gas does not do any good.
When we want TO start her we have
20 tie her behind a truck. Then
she doesn't have 10 turn six revO-
buttons till she is gone and runs
fine. We also have an Overland
model 56-1911 car. same used 10
start with just a little pull on c, INK.
but OF late ! have got 10 spin her
every time and il must be primed
every time she stops. end then spin
before she viii start. Explain this.
IL cranks direct OF Bosch magnetic,
no batteries. Same car is very