On 2/28/06, email@example.com <firstname.lastname@example.org> wrote:
> I was reading an article on engine rebuilding in Hemming's that described a
> process called Thermal Cleaning that is a replacement for hot-tanking for
> Basically, blocks, etc. are placed in a hot oven for a while, and all the
>grease, sludge, etc.
> is cremated and reduced to ash.
I haven't done this at home, but it's how my former machine shop did
things. (Former because they screwed up the work on my tractor
engine, and I had to take the damn thing apart and have the work
redone. ) It works really well.