It was pin 8.

I think I have it figured out. Bad wires. I haven't changed them yet because I just also figured out I believe the car has a bad head gasket. It white smokes when hot and driven hard.

But last night I decided to work on it for a second and noticed (it was a VERY dark night) while running that I could see arcing through the plug wires. It was faint but there were sparks through the insulation to the valve cover on all 3 wires (or at least two of the three). Also, the number 2 or 3 *the one with the plug wire can't remember* boot on the plug was easy to see that it was arcing to the valve cover whenever there was a mis. So......... seems like I've found the problem.

At this point I'm guessing the common failure of plug wires is the die-electric properties of the insulation. Maybe a ton of electrical tape would fix that! Of course the real fix is to just change the wires.

But on to bigger things. The head gasket!

__________________
-E300d '99 350k
-Suburban '93 220k
-TDI Jetta '03 350k
Sold
-F250 '96 7.3
-Dodge Ram 12V
-E320 '95 200k
-E320 Wagon 1994 155k
-300d Turbo '87 187k miles
-E320 1994 200k
-300d Turbo '84 245k (sold to Dan62)
-300d Turbo '84 180k
-300sd '80 300k
-7.3 Powerstroke Diesel 15P Van 500k+ miles
-190d '89 Non Turbo 2.5 5cyl 240k (my first MB)
Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's.