Sixto:
Thanks for pointing me in the right direction. After reading your post I slipped a dry paper towel under the thermostat housing. It was soaked in a short time.
The thermostat seal was probably leaking slightly until I changed all of the fuel lines while I was in there replacing the delivery valve seals. Changing the lines got it "stirred up" and now it is leaking like crazy.
The dealer is going to get all of the seals here tomorrow so I should be fixed up soon.
I'll let everyone know how it turned out

__________________
Tom Hughes
St. Louis
84 300SD
92 300D
86 300SDL