b.
Remove sufficient cowling to gain access to the spark plugs and remove both spark plugs from each cylinder.
c.
Spray the interior of each cylinder with approximately two (2) ounces of corrosion preventive oil while cranking the engine about five (5) revolutions with the starter. The spray gun nozzle may be placed in either of the spark plug holes.
NOTE
Spraying should be accomplished using an airless spray gun (Spraying Systems Co., “Gunjet” Model 24A-8395 or equivalent). In the event an airless spray gun is not available, personnel should install a moisture trap in the air line of a conventional spray gun and be certain oil is hot at the nozzle before spraying cylinders.
d. With the crankshaft stationary, again spray each cylinder through the spark plug holes with approximately two ounces of corrosion preventive oil. Assemble spark plugs and do not turn crankshaft after cylinders have been sprayed.
The corrosion preventive oil to be used in the foregoing procedure should conform to specification MIL-L-6529, Type I heated to 200°F/220°F (93°C/104°C) spray nozzle temperature.
NOTE
Oils of the type mentioned are to be used in Lycoming aircraft engines for corrosion prevention only, and not for lubrication. See the latest revision of Lycoming Service Instruction No. 1014 and Service Bulletin No. 318 for recommended lubricating oil.
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