There's also a recipe for removing caked on gunk from that used machine you
brought home:

1 pint radiator flush
1 pint engine cleaner
1 pint synthetic cutting fluid
1 pint mineral spirits
2 tablespoons wax
4 tablespoons dishwashing detergent
Cabosil as required to thicken mixture

brush on machine, soak overnight, scrub off. Repeat if needed.


Karl