Peter:

The STAR article I referred to is the May/Jume issue, 1999, page 30.

It also talks about a commercial machine to do the cleaning. It is called "Sun Diesel Motorvac engine cleaning unit" and is available at shops servicing diesel trucks. In the article, there was a pic showing a 124 hooked up to the unit.

Plese forward whatever you find you will need to put things back.

Thanks.