Since this shelving is for storage of my 10 Series saws, I was trying to get them organized in order and was reminded that I don't have a 4-10. Looking around in the attic found I did get one in the big haul a while back so I started cleaning this one up. Turns out it had the carburetor modification where they change the lower half of the tank so it is not an all original 4-10 (I will have to keep looking) but none the less it is a 4-10. I stripped it down to give it a good cleaning and thought the PTO side seal looked suspect so I made up some plates to block off the intake and exhaust ports. Later on I will try to find a used innertube to make a gasket/seal but for now Gorilla tape will do.
As I suspected, the seal is shot so this one will take a bit more work when I get home again later in the week.
Mark