Hello List et al In my book "rebuilding" means TOTALLY dismantling the action to its constituent parts. Only then can the stiffness of centres be appreciated. In a 1917 upright I doubt very much that the damper felts are in acceptable state. For nearly 90 years they have been compressed against the strings = replace felts. Also not only would I replace the "tapes" (bridles) but also the damper springs, jack springs, butt leathers and damper tail leathers/cloths. Test that the set-off screws turned easily. All burnished wood surfaces to be re-burnished as well as the damper spoons and damper lift rod. Replace or repair any broken action parts. When you re-assemble the action the screws will automatically be tightened.. :-) Would anyone on the list like to comment on the effect of ageing on hammer felt? Regards from a black Sussex Night. (no stars) Michael G (UK)
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