Engine storage after mounting

[stigaro]

I recently installed my IO-390-EXP119 after about 20 months in storage. Lycoming documentation says it should be good for 24 months in the original packaging. Great, but now that I have it installed, should I do anything to ensure it is well preserved while I finish other tasks? I'm thinking should I at least put oil in it and rotate the crank a few times? I'm probably still a year away from first start.

 

[D-Dubya]

That's really a question for Lycoming, as they're the ones that have preserved it. But installing some desiccant plugs in place of four of the spark plugs wouldn't be a bad idea.

 

[esco]

Consider humidity & temp for the next year(+), then see VAF dehumidifer threads.

 

[Mel]

Lycoming says, "Do not rotate crankshaft on a stored engine."

 

[gassman]

I called mike busch about this with mine and he said there is no concern if it hasn't been ran.

 

[gassman]

And no, do not rotate the prop

 

[wirejock]

I installed dessicant plugs. Eventually, I had to rotate it and put dessicant plugs in the bottom as well. Dryer ran 30 every day.

 

[ve0kog]

When the altimeter and temps fluctuate the engine will breathe ambient air through intake, exhaust and oil breather, unless completely sealed . The moisture may condense internally under some conditions, most likely when the engine is cold soaked and a warm humid front comes in. This happens during late winter/early spring in my area. I think adding lots of desiccant to all possible air ingress paths and over filling with oil, fogging cylinders can help. Basically see Lyc Service Letter No. L180B.

 

[Freemasm]

When the altimeter and temps fluctuate the engine will breathe ambient air through intake, exhaust and oil breather, unless completely sealed . The moisture may condense internally under some conditions, most likely when the engine is cold soaked and a warm humid front comes in. This happens during late winter/early spring in my area. I think adding lots of desiccant to all possible air ingress paths and over filling with oil, fogging cylinders can help. Basically see Lyc Service Letter No. L180B.

As stated above, The engine does breath. The internal air will reach equilibrium with the ambient air over time. In addition to desiccant plugs, I utilize a cheap, homebrew plug on the engine case as well.

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