This has been a great process for me to find a solution to my problem. Thanks to all of you who responded.
I have learned a lot. First, Lionel bought the smoke units for these engines from a German company and all the German manufactures like LGB use this brand. They are made in many sizes and types by Seuthe.
An important point is using smoke fluid, other that the fluid made for this unit, will ruin it. I learned this from Carl Tuveson and Le Keply (A multi gauge user and certified Lionel/MTH repair guy). You can get this special fluid from Walthers and it is $6.95 plus shipping. Lord knows how many different brands of fluid I have stuffed in my 3 engines of this type. Perhaps this is why one quit working.
In any case Carl is sending me a replacement and a spare. Thanks again to Carl, Le, and you guys that helped me.
