Nice job on making a new sight glass!
Does your 365/1 have enough power to run the governor? I can’t get mine to. Also mine leaks pools of water, but I can’t see where the water leak is coming from.
Does yours pool water under the cylinders or just a few drops here and there?
I’ve taken apart the cylinders and the piston moves smoothly in the bore. I can’t tell if there is blow-by or not. It’s not something that can be fixed I don’t think.