Re: stuck motor
I rebuilt an engine that had bad mains. I had new mains poured (not rods) and that crank was so tight, you couldn't move it by hand. It could be moved with a long wrench on the flywheel, and the starter. Certainly the engine needs some lubrication, but if each cylinder is full or even half full of a liquid then you get hydro lock when that cylinder is on compression. Go lightly with pouring large quantities of anything into it.
Model A s excel at locking the valves up through sitting too long. with the valve cover and the manifolds off, make sure lots of Kroil, WD40, 50/50 acetone/ATF, MMO gets on the valve stems.
One last note. Machined surfaces always rust if not covered in grease, oil, Cosmoline, etc and this rust scrapes off as a fine 'grinding" compound. Cams, cylinder walls, valve stems, etc are all probably have some fine surface rust that will rub off. So whatever oil you're going to use, be prepared to dump it after twenty minutes running. I use the cheapest junk oil I can find on sale.
Terry
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