Hi Tom, If it is only a few, drill the holes out and put in a plug of pinblock material, as sold by Webb Phillips. Put it in with CA glue, which will act as a barrier to the oil, and drill it for a #2 pin. How did you know it was valve or slide oil? Regards, John M. Ross Windsor, Nova Scotia, Canada piano.tech@ns.sympatico.ca
This PTG archive page provided courtesy of Moy Piano Service, LLC