Hi,
Thanks to all of you who either sent or posted those valuable insights into wheel building with suggestions as to what might be the likely cause of my clicking spokes.
I followed through on quite a few of the suggestions but today the clicking was getting worse so I thought that I would try some diagnostics. I inserted a match between each spoke crossover to eliminate any possible worn flat spot edge rubbing and then took the bike for a spin up a quiet street. The noise was much louder, more pronounced and regular happening once every wheel turn. I came home removed the wheel and then checked all the spoke nipples and found one that didn't appear to be as tight as the others though there did appear to be a good degree of tension in the spoke. I backed off the nipple (with some difficulty) and applied a little thin oil to the spoke thread and to the eyelet hole in the rim working the loose spoke about before re tightening the spoke. I then let the bike stand for a while and went for another ride. The clicking was initially inaudible but after a fw hundred yard I could eventually make out a feint tick but nothing that will annoy me further so this appears to be the source of the problem but why it happened is still a bit of a mystery to me. Perhaps the eylet has become worn allowing the nipple to move in its seat ?
Regards
Ken Hume
London, England