Evening star., 1921-03-06
Answers to Last Weeks Questions.

l. 1t is possible TO ovcrcharge Il
storage battery with the automobile
generator if the car is driven almost
entirely in daytime. However, over
| charging seldom happens. because
nearly every motorist uses his bat
teries to start the engine. blow the
norm and in many cases for ignition.
1et il might easily occur if the gem
orator Were wrongly adjusted so that
| 1t generated too much current in pro-
! portion to the amount used.
:. Sudden humping of a car in mo-
| tion is usually caused by broken
, spring or Il fiat tire. In either case
stop the car Immediately. y broken
front spring is a serious handicap to
| steering the car, while ii fiat tire
would be cut and ruined if driving is
continued
.. The silent chain is SO called be
| cause it is made OF links or blocks
shaped to fit the depre SsionS between
the chain travels. Silence is insured
because the parts are close fitting and
/ there is no play.
4. Benzol is a by-produ duct of illumi-
mating gas and coke. II has not been
used to any great extent in this coun-
! try for automobile engines but had
been used TO quite an extent in Eng
! land.
}. Other magnetic troubles beside
burned or short -circuited windingS
which Will cause an engine to misfire
are worn. dirty or oily contact brea X
! er points. The proper setting of points
| must be maintained at all times and
! the magnetic covering at these points
should be Inspected occasionally for
the presence of particles of steel car
! bon or oil
! 6. \ universal joint is a flexible
! Joint. which allows a smooth trans
| mission of power from the engine to
! the rear axle. which is usually at Il
! lower level than the engine. With
| out univcrsalS car construction would
have to be altered in order that the
! rear wheels might propel the car
! without strainng the system. The
| universal joints should be examined
occasionally for play and should be
| packed with heavy grease about
! once every thousand miles of travel.
They should. also, be protected from
| dust or moisture with a metal or
| leather sleeve. In cleaning uni
| versals remove grit and old grease
| with Kerosene before applying the
new grease. Some unjversafS are
| equipped with grease cups. and then
all that is necessary is to turn down
| the cup occasionally.
{. The timer or interrupter of
J the ignition system does not require
| other than occasional attention to
! always set at the proper distance
apart and should be smooth and
| bright. If they require cleaning.
| first wipe away oil and then with
very fine sandpaper dress down the
points to a fiat surface. This is nee
| essary in order to obtain the quick,
| hot spark which efficient engine op-
/ Grafton demands.
g. Always endeavor to obtain the
best possible grade of gasoline for
your engine. When good gasoline is
used more mileage and more eff
ciency-that is. endurance. speed and
power-result. less carbon is de
posted within the cylinders. knock
/ ing is eliminated and higher com
preston can be used. The best grade
of gasoline is that which Will boil
at the lowest temperature.
g. few points to remember IN
| handling a car on a turn so as pre-
vent a skid are to release the breaks
when starting to turn. TO disengage
| the clutch and to slow down before
| the turn is reached. On making tn"
! curve execute as large radius as
possible. Always remember that even
| though the rear tires are equipped