[quote=Hotrod Lincoln Drain the oil while it's hot, and most of the crud will come with it. Then you can repair any gasket or seal leaks the solvent wash might have created.
I thought about that prior to my work on this thing, but when I could not get it to idle after I rebuilt carb (found split rubber hose when I pulled engine out) I abandoned that idea. There is not much sludge in the pan or valve covers. There is a thin layer on everything, but not what you would expect in a 55 year old engine that has sat for 30 of its years.
