I got the deck on and leveled then took it for a test. I mowed maybe 2 minutes then brought it back in the shop to change gauge wheel height. Before I could put the wrenches back down, dad was climbing aboard. He ran it for about 45 minutes--that ought to have the rings seated.
I officially kicked it out of the shop after that--or so I thought. Parked it under a shed then realized I needed to move it. Cranked it up and the oil light won't go out
Cranked it several times, light stayed on--obviously didn't rev it up much or run it long. I guess next step is to pull the sending unit where it sits, too far to drive to shop with light on. Yep, this one is a fight to the end.
I will say that 50C mows very nice and those 18 ponies play with it.