Engine Preservation - 181 Days Or More; Cold Weather Storage; Long-Term Storage Of Engines That Use Automotive Fuel - Lycoming IO-360-N1A Installation And Operation Manual

IO-360-N1A Engine Installation and Operation Manual

Engine Preservation - 181 Days or More

If the engine is to be stored for 180 days or longer, after the first 180 days, and every 60 days
thereafter, complete the following:
1. If the engine is still in the box, keep the engine in the box and wrapped in plastic. Otherwise,
wrap the engine in clean, dry plastic without any rips, tears or openings.
NOTICE: If available and clean, the urethane top foam pillow (original packing for the engine
when shipped from the factory) can be used again.
2. Examine the moisture indicator on the side of the engine. If there is moisture, the indicator
will be pink. If there is no moisture, the indicator will be blue.
3. If the moisture indicator is pink:
A. Remove the wrapping from the engine.
B. Examine each engine cylinder.
C. Look for rips or tears in the plastic. If the plastic is ripped or torn, replace with plastic that
does not have any rips or tears.
D. Look for damage to the box and the engine. If the box is damaged, replace it with a new
undamaged box.
E. Complete a borescope inspection on each engine cylinder per the procedure "Engine
Preservation - 61 to 180 Days" in this chapter.
F. Add preservative oil as necessary per the procedure "Engine Preservation - 30 to 60
Days" in this chapter.
G. Replace the pink moisture indicator with a fresh blue moisture indicator.
4. At the end of the 180 days, if the moisture indicator is still blue, and the engine must stay in
storage, as long as the plastic is not ripped or torn, continue storage with 60-day interval
checks, for up to 1 year. Otherwise, replace the plastic and continue with storage.
5. Record the results of each 60-day check.
NOTICE: Completion of the previous steps for storage extension will not extend the warranty.
6. After 1 year of storage, either put the engine into service or repeat the previous steps in this
procedure.

Cold Weather Storage

In cold weather, if possible, store the aircraft in a heated hangar between flights. Add oil to the
engine as required with the specified oil grade (Appendix A). Refer to the IO-360-N1A Engine
Service Manual.

Long-Term Storage of Engines that Use Automotive Fuel

If automotive fuel is used to operate this engine per the latest revision of Service Instruction No. SI-
1070, Lycoming Engines recommends the following:
1. Either operate the engine or drain the aircraft fuel system per the aircraft manufacturer's
instruction until the fuel tank contains less than 50% of automotive fuel.
2. Add the specified aviation fuel, as per Appendix A or the latest revision of Service
Instruction No. SI-1070, until the aircraft fuel tanks are full.
© 2016 Avco Corporation. All Rights Reserved
February 2016
Engine Preservation and Storage
Page 43