Well, I may have screwed up.
After I got it running last night....I decided to wash off the engine so it would not be so dirty when I started on the head gasket. Now it will not start. It rolls over and every now and then it fires but it sounds like it is firing at the wrong time, and I get a backfire or the engine jams. I let it sit overnight hoping it would dry out, but is is still doing the same thing this morning.

__________________
1995 E300 Diesel
1994 E320
1999 C230K
1994 S500 W140
1990 300 SEL