Thanks Gents,
I am going to try leaving it in the plane for 4 months as a test...we will see. My plane IS outside, but I keep it covered so it is not unbearably hot. The cold is a factor but then I do pre-heat the engine, oil AND cabin.
We just took one apart and found loose connections, probably from it being moved frequently, so we will see if some stability will help mitigate this.
Will report back later with results...
Mike N714AJ