Speedo Internals

I have a faulty Smiths speedometer - all stripped down and I think I
have found the fault but now need some advice.  Anyone out there claim
to have detailed knowledge about the inner workings of these things?

Guy

///  unsubscribe/change address requests to majordomo@autox.team.net  or try
///  http://www.team.net/mailman/listinfo
///  Archives at http://www.team.net/archive/spridgets