I was looking at all my old posts from the other board for useful information that I'd left behind, here's one.
Last time I looked in to having the Speedo and Tach restored for my H1F I was told the internal inertia damper was not a rebuildable item, last week I came across a company that restores Japanese clocks ( along with others ) that will refill the damper with oil. No more bouncy needles, they also mention in an e-mail to me about replacing the metal bushings with phosphor bronze ones. I’m going to give them a try.
http://www.guagerepairs.com/index.html31 Avington Grove, London SE20 8RY, UK
Tel 00 44 208 289 9031
peter.bond1@ntlworld.com