El Paso herald. (El Paso, Tex.) 1901-1931, 1921-01-08


J. How can you tell which cylinder
is to blame in an engine which Is
mlsfiring regularity
2 How can you tell by position OF
the fly wheel when the valves are
opened and closed7
3. What IS gasoline2
4 How many electric circuits are
there IL the Ignition system and can
more than one circuit pass through
q single wire2
5 How can oil be tested TO find
out II u contains acldf
g. Which VIII more readily absorb
heat. air or water2
2. HoW should brakes be adjusted
so that they can be operated effici-
ently2
s. Where should you carry the
spark control lever when travelling
ever very slippery or soft, rough or
hillv roadsl
9 what IS usually the trouble II
an engine runs vel but has no power
while being driTen2
10. what would cause a sudden
grinding noise in transmission or
differeutiall
Answers 10 Last Weeks Questions.
A A spark VIII not jump Is great
distance between the spark plug
points under compression within the
cylinder as It VIII outside q the en-
gine, because the compressed air and
gas mixture form a better insulator
% electricity than exterior atmos-
phere- Therefore, more voltage Is re-
quired 10 penetrate compression. and
q closer setting OF the points Is ueces-
sary within the cylinder.
g The average Temperature with
IN an automobile engine, with cool
Ing and lubricating systems function
Ing properly Is about $50 degrees At
the beginning OF power stroke when
the explosion occurs In each cylinder
#aHa HHaaa H. =
and the temperature AT suction stroke,
the coolest period Of the cycle 81
about two hundred and fifty degrees.
To Withstand these various high
temperatures It can be easily seen
that a good quality Of oil Is neces-
o one way Of telling II one or
more cylinders are consuming too
much oil Is TO watch the exhaust
pipe IS the engine Is in operation
II smoke comes from the pipe steadily
an cylinders are receiving the same
sues lrraglarly In puffs there is a
possibility that some cylindeEa are
being fabricated more than others
"A constant stream Of smoke may IN
dicate too much oil IN all cylinders
a The basis Of power which
Easolire engine has Is usually figured
zt Sc 70 19o pounds per square inch,
Which is considered 70 exist during
the fuu length OF power stroke q
each piston
5. IN most autom0bils engines the
exhaust and inlet valves are both
the same size therefore from size
alone you cannot ten one from the
other. But you can tell them apart
by observing when they open and
close the inlet begins 70 open im-
mediately upon the fun closing Of
the exhaust, but there IS q period Of
time between the closing OF the IN
let and the opening OF the exhaust
s.. Alcohol Is Obtained from a
vegetable source and contains seven
or more percent Of water. II can Be
made from substances Containing
starch or sugar and X is also a pro
duct Of fruits, grain, vegetables,
wheat rye, corn. sugar cane, barley
and rice. Alcohol requires consider
able heat 10 properly vaporize il and
therefore is used almost entirely as
an anti-freeze solution only in the
automobile engine.
z. II a storage battery were dis
charged faster than the specified
rate the plates would tend 70 warp
and active material on them would
be loosaned from the surface. form
ing considerable sediment in the bot
tom Of the battery jar. This II con-