I know it's frowned upon, but I've cut a portion out of the top of a milk jug, put in about an inch of gasoline, followed by the freewheel, then swirled it around for a few days, once in a while taking it out and spinning it. After that, and several days of spinning and drying, I work in some Tenacious Oil. The result is a very smooth, and very quiet, freewheel.
(PS: I also collect and take the dirty gas to a oil change place for proper disposal...)
Last edited by 67tony; 07-14-17 at 02:20 PM.