I used a 0.8mm head gasket, but did have to adjust the valve lash.

About my wiring, the 140 green book does have a picture, as well as my haynes manuals, and the other volvo green books that I now have. Also, I made the effort to mark and label the wires and the distributor cap before I pulled it all when deconstructing the 1800E. However, if something is reversed, then the pictures don't help me much more than my labeling. What gets me is that the marked firing order does not quite jive with the correct wiring pattern. It is maybe just that I'm looking at the order backwards. I need to go out and play with it tomorrow if I can avoid going in to work for the whole day.

My thought is that I must have dropped the distributor gear in 180 degrees backward when I put that oil pump reinforcing ring on. Since I managed to put the replacement distributor cap on backwards to the distributor and the engine fired right up, then logically I should be able to install the cap correctly and flip the wires around. This cap shows no sign of damage to it's contacts and there is no visible damage to any part of the distributor innards.

I cannot put the B20 distributor back on because I have an aftermarket electronic ignition unit and it will not work with B20 distributor. I'd also have to rewire my whole ignition system and go back to using points.

Maybe I ought to grab yet another one of my B18 distributors and put the electronic ignition into it...

I'm also still thinking that there's something that's not hooked up correct this time.. Just not sure what, I didn't remove the dist, so I really can't see what could be doing this... Maybe this cap and rotor are screwed...