Mods, please close this thread if it doesn't come back onto topic.
I asked a topical question that had nothing to do with odd behaviour in gas capilliary action or labyrinth seals.
You could always try steering the thread to something more specific to your interests by asking more questions that somebody might have an answer
Looks like this technical discussion is of more interest to the participants.
Of course a Mod could always change/merge the thead title to something more generic, where a variety of similar questions to yours might be asked