The inside of the underdrive cabinet was an unholy mess, there was literally 1/4” of caked on black grime. I’m not ready to do a full rebuild on this lathe yet, just want to get it to where it’s usable. But I can’t work with that kind of mess, you can’t see anything, the grime gets everywhere. So I decided to clean it out as well as I could.
what worked OK was spraying it down with engine degreaser, this loosens it up very nicely. Then I made a solution of hot water and degreaser and kept washing it down an wringing out the greesy rag in the bucket. Finally got it to this point where at least you can work around it. Yeah, the bucket had some nasty crap in it, was thick with this goo.