Originally Posted by Retro Grouch
Sometimes if, just before you try to seat the section of the tire adjacent to the valve stem, you push the valve stem down into the tire, it allows the tire beads to seat against the rim better.
Thanks, that makes good sense and something I was probably aggravating because when I put the stem in, the first thing I used to do was screw the retaining ring on to hold it in place! I'll try your suggestion next time.
Bob