In reply to the power steering, I don't have a pump or reservior on the tractor, so I'm going to assume that maybe that was what went bad or leaked and it was removed, although it wasn't done by whom I bought the tractor from. It was down by the owner prior to him so no telling what. The guy I bought it from just thought it needed plumbed in, just as I, not knowing any different. I'm going to guess I will need the pump and reservior.

For the air cleaner, that is what I had in mind. But I may have to find a diffent assembly. Two reasons, one the &quot;can&quot; I have is 6.25&quot; in diameter and the side tin won't latch because of it. I might be able to refit things to get around it. Second problem I discovered is that the tube poking out of the hood is joined to the &quot;can&quot; with a rubber hose in between. This has allowed water to slip past the clamps of the hose (run down the tube) and collect in the cup and overfill it. 

Thanks for posting the informative pictures.