News and citizen. [volume] (Morrisville, Vt. ;) 1881-current, 1918-06-12
GREATEST WORRY
FOR A MOT0RIST
Carbon Will Form in Best of Com
buStiOn Chambers and Cause
Much Trouble.
SEVERAL WAYS OF REMOVING
Experienced Man Says Best and Sur.
est Way Is Use Of Kercsene-Pour
Liquid in Gradually and Open
Throttle Slowly.

Carbon is one Of the greatest wor-
ries of the motorist It VIII form in
the best of combustion chambers.
This substance is deposited through
imperfect combustion of the cylinder
oil and gasoline, Dust is drawn into
the motor and adheres to the first oil
surface it strikes, adding to the accu-
mutation Of The piston head. Eventu-
ally this deposit becomes so deep that
# Is incandescent causing premature
ignition Of the fuel 1t is this feature
that will prevent any motor running
smoothly.
There are many ways Of removing
carbon. 1t may be scraped out with
tools designed for the purpose. There
are several sorts of chemical carbon
removers which can be injected into
the combustion chamber for the pur-
pose of loOsening the carbon and per-
hitting it to be blown out the exhaust.
With some types of motors it is pos
sible to drop a small chain in the COM
bustion chamber and let it scrape the
carbon off as it flies around under the
impulse of the piston.
Surest Carbon Remover.
However the experienced motorst
says the best and sureSt carbon remov-
err is a dose of ordinary kerosene.
When the engine is hot after a run
feed about three or four ounces Of ker-
osene through the air vent on the in
take manifold or through the air in
take of the carburetor while the en-
CINE is idling. The kerosene should
be poured in gradually and the throt
tie opened very slowly, which draws
the kerosene into the cylinders in
larger quantities than can be vapor
iZed and burned at once. In a few
minutes the excess kerosene is being
churned up and down in the cylinders,
soaking the valve seats and spark
plugs
Many car owners inject the kerosene |
through the petcocks, but the method !
described above has the advantage of !
uniform application to the valves.
When the oil is put in by way of the |
petcocks it is likely to run down one
side of the carbon deposit, leaving the |
other side untouched
Prevent Formation.
By giving the motor dose of kerO- |
sene once a week it is possible to pre- |
vent the formation of carbon deposit. |
One Kansas City mOtorist has a small |
tank of kerosene installed in the front |
Of his car. Every day as lie draws
near his home, he switches from his |
gasoline feed to the kerosene for ten !
minutes running. He claims this
practice has relieved him from all car
bon troubles and that his engine runs |
as well as when new.
Mixtures of various sorts have prov |
en- good carbon remOvers. Alcohol and |
kerosene In proportions of three to |
one make a good carbon solvent, mo-
florists say, and another good carbon |
cleanser is made Of two parts acetone. |
two parts kerosene and one part ether |
In preventing the formation Of car |
bon, the use Of good cylinder oil and |
the correct adjustment Of the carbure- |
tor is necessary. The best advice is |
buy a standard brand of oil In guam |
tity recommended for use in the par
ticular make and model Of car. Some |
cars use different weight oil in sum- |
mer and winter. As the car gets older |
and the parts become thoroughly worn |
IN and a triae loose, a heavier oil is |
often beneficial. motorists say.