Part 17 (2/2)

OXYGEN PROCESS FOR REMOVAL OF CARBON

Until recently the ine cylinders were very i thethe pistons and cylinder walls by hand

The as never done thoroughly It required hours of ti the inside of the cylinders

These e extent superseded by the use of oxygen under pressure The various devices that are being manufactured are known as carbon ree nuasoline traction en carbon cleaner consists of a high pressure oxygen cylinder with autoulation of pressure This valve is fitted with a pressure gauge, rubber hose, decarbonizing torch with shut off and flexible tube for insertion into the chamber from which the carbon is to be removed

There should also be an asbestos swab for swabbing out the inside of the cylinder or other cha the operation

The action consists in si the carbon to a fine dust in the presence of the strea then blown out

_Operation_--The following are instructions for operating the cleaner:--

(1) Close valve in gasoline supply line and start the asoline 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, re in the cylinder it should be re substituted

(3) Raise the piston of the cylinder first to be cleaned to the top of the compression stroke and continue this froresses

(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 nite the gas in the cylinder in place of using a en 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 aso that the carbon starts to burn Cover the various points within the cylinder and when there is no further burning the carbon has been reen tank valves are operated in exactly the sa as previously explained

It should be carefully noted that when the piston is up, ready to start the operation, both valves must be closed There will be a considerable display of sparks while this operation is taking place, but they will not set fire to the grease and oil Care should be used to see that no gasoline is about