Evening star., 1920-11-21

l. An engine is subject to popping
splitting into tho carburetor and I'M
even firing because Of the lack OF
heat necessary to properly vaporize
the gasoline mixture from the car.
buretor. Until the engine begins to
warm there is more or less raw gaso-
line admitted to the cylinders. 1t is
hard to ignite and is slow burning,
! which explains the strange antics
through which the engine goes upon
starting. Continuous popping, ever
after the engine is warm, indicate!
too weak a mixture. in which cas-
more gasoline should be fed to the
cylinders by adjusting the carbu
rotor.
2: To aid starting the engine aftel
it has been standing exposed to the
cold for a period always disengage tn
clutch while the engine Is neins
cranked. This will allow the en-
gpe only to revolve with the starter
instead OF most of the transmission
which latter would be the case OF tne
clutch were fully engaged. In colo
weather the lubricant in the trans
mission gear case is considerably NOR
solid than in summer and requires
more energy from the storage pat
cant. If a battery Is weak 1t Will % De
about all it can do to turn over botf
engine and transmission when cold
3. A carbide gas generator with
water drip will freeze In cold weatner
The remedy is to use half a1coho'
and half water mixture in the water
tank to prevent freezing.
A small 1aai in gasoline tank
can be temporarily repaired by hl!ine
the leak with soap. A leaky gasoline
tap in the tank or line can be re-
paired by grinding in the tap with
a very fine grinding compound. Some.
times merely tightening lock nut
at the tap will stop the leak.
5. The oil pan of an engine should
be cleaned more often in winter than
In summer because there is more gas
oline in raw state drawn from the
combustion chamber past the rings
into the crankcase, especially when
the engine is first started and when
the full charge admitted to the cylin-
ders is not combusted.
6. A common cause OF slipping
brakes is that of lubricant working
out Of the axle ends and on brake
bands. Wear of the parts designed to
retain the oil or grease may be the
trouble. although as a rule leaking is
tie result of too light a lubricant or
too much being carried in the rear
axle housing.
Z. When the engine is in operation,
dim lights or no light at all may be
due to broken wires, loose connec-
tions at lamps. generator or battery,
poor or loose contact at generator
terminals or brush connections, loose
connections at switch, burned out
bulbs OF bulbs not making contact
with lamp sockets or loose lamp
socket terminals These troubles are
to be considered providing. of course.
that the battery and generator are
producing sufficient current.
8. To have an even pulling engine
with no missing a. slow speed there
should be good compression. which
valves must have the proper clear
ance. sparkplug electrodes set at
proper distance apart and the plug it,
self in good condition. Also the car
buretor must be set carefully SO the
mixture will not be too rich; the
as it will sometimes fire correctly on
high speed. but not at slow speed: the
battery must be in good condition; |;
timer or distributor points must be
dressed to a clean fat surface and the
setting must be accurate; the ignition
must not be timed too far advance
and there must be no air leaks into
the cylinders or carburetor manifold.
If a magnetic is used for ignition too
wide gap at breaker points will
cause missing at slow speed.
9. A silver lamp reflector does not
require frequent cleaning. as 1t is
inclosed and free from dust and mois-
ture. However. IL it is absolutely
necessary. clean with soft, clean
chamois to which has been applied a.
ismall amount Of polishing paste.
10. Slipping the clutch to pick up
speed while going very slowly in high
gear. or as has often been done from
a dead stop. is sure way to wear
out the clutch. To reserve the clutch,
engage a lower gear when tho car
stops or goes very slowly before at
tempting ito increase the speed. Al
wAys keep tho clutch fully engaged
orr ydisenEaged, as the case may be-
AfotheG tendency Of many drivers Is
- KEEP the foot always on the clutch
pedal while the car is in motion.
This also frequently adds to wearing
Of clutch surfaces or to releasing
parts. as just slight pressure Of the