_Operation._--The following are instructions for operating the
cleaner:--
(1) Close valve in gasoline supply line and start the motor, letting it run
until the gasoline is exhausted.
(2) If the cylinders be T or L head, remove either the inlet or the exhaust
valve cap, or a spark plug if the cap is tight. If the cylinders have
overhead valves, remove a spark plug. If any spark plug is then remaining
in the cylinder it should be removed and an old one or an iron pipe plug
substituted.
(3) Raise the piston of the cylinder first to be cleaned to the top of the
compression stroke and continue this from cylinder to cylinder as the work
progresses.
(4) In motors where carbon has been burned hard, the cylinder interior
should then be swabbed with kerosene before proceeding. Work the swab,
saturated with kerosene, around the inside of the cylinder until all the
carbon has been moistened with the oil. This same swab may be used to
ignite the gas in the cylinder in place of using a match or taper.
(5) Make all connections to the oxygen cylinder.
(6) Insert the torch nozzle in the cylinder, open the torch valve gradually
and regulate to about two lbs. pressure. Manipulate the nozzle inside the
cylinder and light a match or other flame at the opening so that the carbon
starts to burn. Cover the various points within the cylinder and when there
is no further burning the carbon has been removed.
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