Lycoming IO-360-N1A Installation And Operation Manual page 32

3. If an engine has been in long-term storage or preservation, remove the seals, tape, dehydrator
plugs, and desiccant bags. (Use solvent to remove tape residue).
NOTICE: If any of these plugs break and the crystals fall into the engine, complete the following
procedure per the IO-360-N1A Engine Maintenance Manual.
 Disassemble the engine.
 Clean the engine.
4. Examine the engine for any damage.
5. If the engine is not damaged, go to the next step. If damage is found, identify and correct or
repair the problem. Record findings and corrective action in the engine logbook.
6. Remove the spark plugs or protective plugs from the bottom spark plug holes per instructions in
Chapter 74-20 in the IO-360-N1A Engine Service Manual.
7. Remove any other moisture-prevention seals and covers from the engine.
IF PRESERVATIVE OIL TOUCHES PAINTED SURFACES, REMOVE THE
OIL IMMEDIATELY TO PREVENT DAMAGE TO THE PAINT.
NOTICE: To touch-up paint, refer to Chapter 72-10 in the IO-360-N1A Engine Maintenance
Manual.
8. Complete the preservative oil removal procedure as follows:
A. If any of the dehydrator plugs (which contain crystals of silica gel) break and the crystals fall
into the engine, complete the following procedure per the IO-360-N1A Engine Maintenance
Manual.
 Disassemble the engine.
 Clean the engine.
B. Put a container under the engine to collect the cylinder preservative oil.
C. Turn the crankshaft through three or four revolutions to remove the cylinder preservative oil
from the cylinders.
D. Collect the cylinder preservative oil as it drains out of the lower spark plug holes.
E. Tilt the engine to one side, until the spark plug holes on that side are vertical.
F. Turn the crankshaft two revolutions and let the oil drain out through the spark plug holes.
G. Tilt the engine to the other side until the spark plug holes on that side are vertical.
H. Turn the crankshaft two revolutions and let the oil drain out through the spark plug holes.
9. Examine the cylinder bores with a borescope for rust and contamination. Refer to the IO-360-
N1A Engine Service Manual.
10. If any corrosion or unusual conditions are found, speak to Lycoming Engine's Service
Department.
11. Drain oil from the oil sump:
A. Put a container under the oil sump.
B. Remove the safety wire and oil sump drain plugs. Discard the safety wire.
C. Drain the remaining preservative oil from the oil sump into the container.
Requirements for Engine Installation
Page 12
IO-360-N1A Engine Installation and Operation Manual
© 2016 Avco Corporation. All Rights Reserved
February 2016