There many good brand of sealant out there. Just make sure it is compatible to gasoline. As said on a earlier post #3 Permatex is one of many. You just want something that is removable.
Thanks for the tip on Permatex #3. Our local parts store is pretty limited on their selection, but we will be going up to the city next week, so I'll stop at a couple of bigger stores, and check on this brand...and any others they have. Now that I've taken this pump apart, its a pretty easy job, so I'll look for a better sealant, and put new "innards" in the pump, and hopefully that should prep me for having this generator ready to go if we need it.