The Salt Lake herald-Republican. [volume] (Salt Lake City, Utah) 1909-1918, 1910-03-06

Wnen attempting TO start an engine
fitted with magnetic. ignition, of which
the firing point is fixed, there is always
the danger of a back-fire happening and
damaging the operators arm. The rea-
son is that when no arrangement is fit
ted for varying the time of ignition the
magnetic armature is set SO that the
spark takes place eariy-in fact, slightly
forward of the end of the compression
stroke. Consequently if the starting
handle be crankSd slowly, a back-fire
is obtained This advanced position is
necessary to enable the engine to run at
high speeds. To safely start such an
engine the course to adopt is as follows:
Put the switch to the off position,
then swing the engine crankshaft round
smartly for few revolutions after the
throttle has been opened and the car
buretOr float tickled. Then put the
switch to the ION" position, and pull
the starting handle UP smartly over the
firing center by means of looped clean
ing cloth. 1t will be found that very
small pull over can be obtained by this
method. and If a back-fire be acct
dentally obtained the cloth is snatched
out of the hand without damage to the
operator.
Although the low-tension magnetic
system is gradually being superseded by
the high-tensiOn magnetic, there are still
a great number of low-tension magnetic
ignited engines in use, and a few firms
are still turning out standard patterns
fitted with this system. In some types
of vehicles starting the engine appears
TO be a difficult operation unless the
crankshaft can be swung over very
slnartly through large number of rev.
nj nj he tc
and the cylinder bore large this is an
exhausting operation. To get an easy
start is not necessary to swing over the
engine quickly except for the reason
that speed is necessary for the magnetic
to give sufficient current to produce an
effective spark when the mechanical
break of the ignition tweaker takes
place in the cylinder. If this spark
could be produced without turning the
engine over quickly little exertion would
be necessary to start the engine.
To get this effect all that is neces-
sary is to provide an eight-volt battery
and use it in conjunction with what is
known as an intensifying coil. The &C
cumulator coil and low-tension circuit
of the ignition tappet system need only
be then connected in series, and it will
be found that if the engine be first
cranked over smartly without the ac-
cumulator switch being on, and then the
switch put on and slow pull over CIV
en- to the engine starting handle, an
easy start will be effected. When pull
ing over slowly with the accumulation
in circuit, care must be taken to see
that the ignition is first fully retarded.
To repair punctures in tubes, first see
il the puneture is in one wall of the tube
only, or If both walls are perforated.
Be sure that the article causing the
puncture has not lodged inside the tube.
Lay the tube on a convenient fat sur
face and then with emery paper clean
around the puncture space slightly
larger than the patch to be used. Select
q patch about an inch and half larger
than the injury in tube and clean II
carefully on fiat or unbeveled side with
emery paper. Coat cleaned surfaces of
both tube and patch with cement, let
ting same Cry thoroughly. Then apply
a second coat. After about ten min
utes, when surfaces are dry but still
'tacky' press patch firmly with the fin
gers, taking care that edges of patch do
not curl. Now tap patch lightly all over