I finally got back to the Twin City. The silicone has solidified so I tapped out the silicone induction hole for a 5/16" fine thread plug and cut off a bolt to make the plug. There's a screwdriver slot in the plug so I can take it out later if I need to put in more silicone. So far the water is not leaking out after I refilled the tractor.
The old spinner on the steering wheel was worn out and the outside handle kept coming off over the top of the centre hold down pin. The end of the pin had been mushroomed on the end and that held the handle on the steering wheel. Well, the mushroom had worn small and the hole down through the handle had worn big. The spinner handle only came off when you really needed it to stay on there. [like when you're backing down off the trailer, trying to keep those steel wheels all on the old planks that you've put down, or when you're turning at the end of the plow furrow, steering with one hand and tripping the plow out with the other, and there's a barbed wire fence really close.] Anyhow, I just heated the centre pin up really hot then slipped the handle on there and re-mushroomed the hold down end of the pin.
A guy has to have a place to tie the plow trip-rope to, right? Well here is mine.