I have 1963 Series III D 17 which had two problems, 1. Took 5-8 seconds to develop full oil pressure, then fine. 2. A knock on startup that would last the same 5-8 seconds, then be fine. The final thing I can say is the the previous owner had lent it out to a neighbor once and the tractor come back three quarts low and also he had to install a new head gasket. So, now I have the majority of her tore down, planning a front split next, and yes it has power steering. What I need is advice/tips form you experienced guys what to check for, in light of the brief description I gave. The tractor has the heart of a bear and I certainly believe it is worth the work involved.