Ben, in a purely hypothetical way, it technically would be possible, but only if the piston and valve stem rods were removed.
Both 18 and 14 use hydrostatic lubrication, which requires live steam. Without steam, 14 would be unable to lubricate her cylinders and very rapidly the pistons would begin to chew into the cylinder metal.
Now, if she had a Nathan Lubricator, it might be possible. Now, having said that, I wouldn't recommend it for a full excursions. Maybe out to the station as a static display (Arcade, not Curriers).
From a pragmatic point of view, 14 has sat idle for so long, there are many things that would have to be done before moving the engine any further then wihin the shop complex: all the bearing packings should be removed, teh cavities cleaned, new packings installed, all the pedestal wedges & shoes should be examined and insured in operating condition, all the rod bearings should be disassembled, cleaned, lubricated and re-installed.
Further, 14 has no tender right now. Without one, 14 has no rear end coupler. Engines and tenders are drawbarred together. It might be possible to fashion some sort of crude drawbar from the engine's pocket to the coupler pocket on 18, 14 would still look kinda funny without a tender.
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__ J. D. Gallaway __
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