Update: Well, the tire is still sitting in the garage. I've been checking its pressure every day. Pressure has been holding steady at 95 psi since Monday, when I last posted. It is no longer leaking, best I can tell. :)
Sooooo, dis-mounting the tire from the rim and re-mounting it using the sealant, seems to have solved the problem. It must have had a slow leak somewhere around the bead. Slow enough, it was never noticed with soap water.
This actually makes (some) sense, now that I'm thinking more about the history of this tire: This particular tire has been un-mounted and re-mounted to the rim way more than usual - Once, when I first had the Borg valve stems put on. Then, a second time a week or so later, to correct the poor valve stem installation I mentioned previously. This was the only tire that had to be dis-mounted and re-mounted a 2nd time to get the Borg valve stem installation corrected. I guess, the 2nd time they put the tire back on the rim, somewhere, somehow, the bead just didn't seal right with the rim, resulting in a very slow leak that just now has got bad enough (2 psi a day) to be noticed.
I guess one lesson to be learned form this, is that one must be cautious when dis-mounting and re-mounting a tire to a rim any more than is absolutely necessary. Doing so increases the risk of the bead not sealing properly when re-mounting, and having a gradual leak like I did here.
Oh, one other thing: Anyone that lives around Gastonia, NC area, if/when you need tires or any tire service for pretty much any vehicle, you should go to Clark Tire! I normally don't mention a business by name on here, except when they've been really good and exceptional, and they have in this case. Those guys are awesome, have been great to work with through all this. Refused to take any $$ for working on this, even though I offered several times. When it comes time to put a new set of tires on the MH, I know exactly who I'll be going to for them. :)
Anyway, Saturday I will put the tire back on the MH, and hopefully put this one to bed. One really good thing that came from all this: Now, I have the tools to change a tire on this rig if I need to, and learned it really is not as hard to work with these tires as some might lead you to believe. :)
That, and having to take the MH to the tire dealer gave me the chance to fill it up with gas, and I got a FULL, 80 gallon load of fuel, while gas was just $1.98 a gallon here! Woot! Now, gas prices are definitely on their way back up, so I definitely got it filled up when fuel was 'bout as low as it was going to get. I'm ready for Spring. :)
