[jbrewer]

The engine turned over by hand, so I ordered a head gasket and removed the cylinder head to see what years of sitting had done to the engine. Fortunately, the answer was "not much" other than rusting the head bolts to the point that one (the one near the exhaust port) snapped off when I tried to remove it. I drilled it out , and retapped. It held the 30 ft-lbs but I may redrill it and put a helicoil in the next time I remove the head.

I discovered why it was probably parked... it had a major head gasket leak and had been run long enough that way to begin to etch the head. It took about 30 min of surfacing it on my flat plate (thanks Matt for the idea) before it was back to being flat. I also noted someone had installed a replacement plug thread insert...I suppose it was easy to strip them out and whoever did this did a good job (though the threaded insert seems VERY deep...and has about 2x the treads that the plug can use. The plug sits WAY up in the threads.

The piston is unmarked and the bore actually looks pretty good! A mud dauber had completely filled the exhaust port... got that mess cleaned up along with general cleaning of the cylinder fins once the tins were off.
Cleaned cleaned......