That was super easy. I now have a working 1979 Conshelf XIV and a 1977 Conshelf XIV (pending new exhaust tee). These things are super easy to service. I took it apart. Removed all the rubber products leaving only the metal. Put it in a hot solution of vinegar and water and put it in the wife's sonic cleaner (that she no longer uses, prior to me taking it over.) Rinsed and cleaned with mild dish soap. Reassembled per the manual. Bam. I am addicted.