My 300D is officially running again. It would have started on the first try but the starter is having issues. It didn't engage the first couple of tries, but when it did, it fired up very nicely. It ran very smooth and was fairly quiet.
Next problem. The tranny went into reverse smoothly but when I put in drive, I heard this loud "phftttttt".
No forward!
The tranny was squirting fluid from somewhere on the passenger side. I couldn't see where exactly it was squirting from but it wasn't from the cooler line. It looks like it might be coming from B1 or B2 piston cover seals. I'm hoping that it's something as simple as one of the O-rings on one of the piston covers.
Anyway I did drive it out of the garage and drove it backwards around my field a little. The oil pressure was about 2.5 at idle fully warmed up. The temp did get up to about 100C though but I didn't install the fan yet but that's because of another issue. I don't have the right alternator for it. Darn PO. He gave me a nice new looking Bosch alternator from a who-knows-what. It did fit but it definitely the wrong one. It has a B+ post with a nut and a D+/- with a single spade plug. This car should have one with a 3 socket rectangular plug.
I only installed it so I could have a pulley for the water pump. The alternator won't work for the engine anyway. It doesn't have any play for adjustment.
I'll have to track down another starter and alternator as well as figure out if just fixing the leak will solve my no forward gear problem.