El Paso herald. (El Paso, Tex.) 1901-1931, 1912-12-28

am experiencing some trouble,
caused by the motor Of my -- car
missing fire 1t runs all right with a
retarded spark but as soon as aQ-
vance it the motor viii start to skip
fire and back fire through the muffleT.
There also seems to be loss Of power,
There are three possible conditions
which viii cause your engine to run
well with retarded spark and poorly
with advanced spark, namely; The
armature shaft may be too 1ar ad-
vanced; the wire leading from the coil
box to the interrupter may have
frayed end which comes into contact
with the metal of the magnetic upon
advancing the spark, or the interrupter
points are wrongly adjusted
Inspect the wiring first 10 deter
mine any short circuits.
In order TO see whether the armaIuFe
is timed correctly, simply retard the
spark lever and get the piston Of No
] cylinder on the firing point no"
look at the interrupter points II they
are already separated the spark IS TOO
far advanced. but if il is necessary 70
turn the engine slightly IN order 70
make them separate 1t is timed cor
rectiy. The interrupter polnts OF tne
magnetic used on your car Should sep
arate one thirty-secOnd OF an 1nch on
advance and retard setting Ehey can
be adjusted by turning the screw on
the insulated side OF the lnterruptef'
Motoring Department. The Herald:
1 keep my car during the winter IN an
unheated garage. Being oes sbe ia N
months, I intend TO mix glycerlne Win
the water in the radiator
VIII you let me know what proper
ton Of it to use. also at what degree
same will freeze2 Do you know of any
thing better than glycerine TO use Tor
this purpOses Z, W. L.
Anti freezing solutions are more or
less troublesome and at best 40 not
cool the engine as well as pure water
For this reason most people prefer 10
drain the Jackets and radiator when
the car is 70 stand IN a COLO plelCs.
Then on refiuing, II warm water Is
handy-not boiling 1t IS best TO use
it, as it viii serve 10 warm the Gym
ders TO a certain extent ana aIo coIu-
bustion One FL PasOan does, this eV-
cry morning and never has any Tou-
bic in starting his car.
Glycerine mixed with water VIII
serve TO prevent freezing, out more
efficiency can be gained by using
mixture Of alcohol and glycerlne, aDouL
two parts of alcohol to one part OF
srlvcerine being the proper proporuon-
The following table shows now mucn
water to add for varying temperature
Fifteen percent alcohol and glycer-
ing TO IS percent water should not
freeze at 20 degrees F'ahrenhelt aDoFe
wenty-five percent alcohol and glyc-
crime to IS percent water should not
freeze at eight degrees Fanrehheit
above zero
TO 20 percent water should not freeze at
10 degrees Fahrenheit below zero.
1t is well to remember that glycerlne
and alcohol win evapOrate more rap
idly than water, ana When reIllilns
radiator that fact should be taken into
consideration
Motoring Department, The Herald;
Ny car requires from 1Our TO elght
gallons additional water to every ~
miles with the shade temperature AT ~
degrees or more. / use soft ralnWatef,
have cleansed with sal soda twice,
renewed all rubber connections, flush
ing wei at the ume5 there are no
signs of scale, the fan works, there are
no cold spots on the radiator, nave
cleaned the cylinders, valves and lSnl-
ton seem to be correct, and adjusted
the carburetor and weakened the mix
ture until there is no power on high
What is the trouble and and I the G Eemeay!
Assuming from what you say the "a
diator and water Jackets are clean, also,
that all hose connections are free thus
allowing the water 10 circulate, ana
that the ignition is not too late, nor the
carburetor adjusted 70 give TOO rlch a
mixture, then it is possible tnat there
is an excessive accumulation OF car
should this be the case, a thorough
cleansing of the cylinders viii in all
probability remedy the trouble II you
do not find the trouble to be carbon
accumulation, inspect the lubFlcat-
ing system of the motor IN order 70 oe-
termine whether the oil in the crank
case is at its proper level, also make
sure that you are using GOOD grade
Of gasoline.
Motoring Department, The Herald:
Am now oYerhauling nay car at my
own garage. The car has been used
about 20. 600 miles and is in very good
condition. except that it does not seem
to have the power II had the early par
Of the season in cranklnS the hoIo I
7 notice that the compression is not as
strong am under the impression that
1 should install some new piston rings
However, I do not wish OF do this un-
less it is necessary. The rings seem 70
be in irst class condition Some ad-
wise me one way. others another. What
is vour oDinion2 s. II B.
1t is customary in overhauling mo
tor which has been run for any great
length of time, to renew the piston
rings. These rings act under spring
tension and are subject TO considerable
wear They are not expensive and II
properly fitted will considerably IN
crease the power of the motor. With
a loss of compression you can hardly
expect to obtain the fun benefit from
are the cause of this loss of power and
accordingly should be replaced
Motoring Department, The Herald:
II
car of this years model which has
suddenly developed a peculiar missing
The car is equipped with a - mag
neto and misses on cylinders and
at all speeds, and hits as well as ever
on cylinders 1 and 4. There is nc
spark at and : whatever, while and
have a strong spark. The wires are
in good shape, also the plugs. What
is the remedy for this trouble?
". r. Turner.
The trouble, it appears, lies in the
primary interrupter in the magnetic
one of the cams which operate this
without doubt, is worn or defective anc
does not cause the interruDter points
TO open
There are two cams operating the in
ferrupter which work alternate The
firing order of your engine is ethel
1854 or 1912, and It is evident thai
one cam operates for the spark in
and 4 cylinders and the other cam FOL
the 2 and cylinders
The trouble may be located Dy re
moving the magnetic and revolving Inc
armature slowly by hand Watch the
interrupter points to see If thcy. separ'
ate properly every half revolution Oh
the arnature shaft
= =
Motoring Department, The Herald
VIII YOU kindly explain what