My portholes need all new gaskets. The boat was built in 1979 in West coast Canada by Spencer Yachts. I need to identify the mfg of my portholes and then attempt to locate replacement gaskets. It appears there are at least two separate gaskets, one on either side of the glass. Does anyone have information about this Mfg, where to loacate replacement gaskets for them or the process to rebuild them?
Thanks, JT