The Washington times., 1916-09-02

motoring Department, the T1mes-l
lave q new 1916 Ford. bought last June.
u does not run more than eleven or
twelve miles on q gallon OF gasolene, II
pleasure driving. Can you suggest what
might be wrong? c. c.
Either the spray nozzle needs ADJUST
Ing or there Is q defect In 1t. making
Il impossible to adjust correctly. Try
turning down the spray nozzle ADJUST
Ing valve, while the ensips Is running.
until the carburetor backfres or the
motor slows down appreciably. Then
open valve until engine runs best. II
this does not increase the mileage have
The carburetor inspected at q service
station.
Motoring Department, The Times-.I
Fespectfully request to know through
your columns, providing the answers
are not too obvious to admit your space:
a. The difference In meaning between
ssPpansion and compression; o. II the
at what atmospheric low temperature
sary? Z. N.
~ One 10 Just the opposite OF the
other. On the compression stroke the
piston goes upward and both valves
are closed. This congresses the mix
TURF into the combustion space at top
Of cylinder. As crank goes over dead
csnter the spark sets fire to the COM
pressed gas. The gas burns and ex-
Dands. pushing the piston down as It
dess 20. thus producing power. These
two strokes are called the compression
and power strokes. respectively. (D The
air-cooled engine has demonstrated that
no radiator Is necessary at any time.
II. Of course. has radiating fanges and
II cooled by a rush of air blown by a
fan. II the fanges were removed a
greater rush of air would be necessary.
Even at zero temperature a motor
would overhead IL there were no rush Of
air to carry away the heat.
Motoring Department. The Times
have a 1914 Ford which gives me n
great deal of trouble with oil working
through to piston. The plugs become
saturated with oil so that they will
not work. have had new rings put In
TO no effect. Had overuize rings put
In. but would not answer purpose. Had
new pistons put In. and II was all the
same. / would like to know II this
trouble can be remedied. and. II so,
how? The water in radiator also boils
after running six or seven miles.
/ II oversize rings have not helped the
trouble may be due to wear OF cylinders.
Grinding TO a true circle and fitting
larger pistons and rings would help
keep the oil down. Before doing so,
however. try using a lower oil level.
a. It 10 Just possible that too much
] oil 10 being splashed UP into the cylin-
ders.
The overheating may be due 70 tho.
radiator becoming clogged. Clean cut
with washing soda. Keeping the spark
too far retarded will also cause It, 10
will running too long on low gear.
Motoring Department. The Times
Having purchased a secondhand ma
chine, and inexperienced In the driving
rules. laws, ETC.. I wish to know II
there IL not a book on these principles,
and where II may be obtained.
experience trouble OF engine missing
when running slow In the high gear. but
when switched to intermediate, or slow.
engine works 20. X" Do you think
there might be trouble In the magnetic
being weak, and causing same to gen
crate too slowly to supply current
enough to spark when running slow in
high gear?
also think the engine runs too fast
when In neutral, for which I am igno-
Any large bookstore in your neigh
borhood can supply you with automo-
bile books. There are a large number
OF good ones on the market.
II engine runs well on battery and
misses explosions on the magnetic 1t in
dicates weak magnets. These may be
remagnetized at a magnetic service sta
ton, but It Is best to ship the whole
magnetic back to factory for overhaul
ing.
II engine runs too fast when idling,
retard the spark. II II still runs too
fast adjust the throttle by the adjust
ing screws on the carburetor so that the
engine runs very slowly but does not