Thanks to everybody for the pointers. My tractor uses a mag. I"ve got the timing cover off so I can line up the timing marks. I"ve re-checked the new governor assembly for any suggestion of timing marks. There are none, and none on the backside either.
I put the old gov. gear back in place with all timing marks aligned and marked where the mag. drive slot was oriented (at about 2-8 o"clock looking from the rear). I then removed the old gov. and put the new one in and find that I can get the mag. drive slot to within about a degree of the marks I made. I"m thinking that I can now put the timing marks onto the governor gear and have it in the same position as the original.
I need to mark it since I also have to pull and replace the camshaft gear. Some of the cogs are broken, apparently from the half dozen or so cogs that were wiped out on the governor gear. I also hope to pull and replace the drive shaft timing gear too while I"m at it, though it wasn"t damaged, but is worn (if I can get it off!).
An additional question I have is, since I don"t have the shafts out (and don"t have a gear press), is it permissible to drive the timing gears back onto the shafts, say using a block of wood and light sledge? (Any likely damage to rear seals or something else?)
Thanks again for all the suggestions and pointers. I"ve had old "Short Stack" for almost 40 years, and this has been its first major breakdown.
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Today's Featured Article - Ford Part Number Trivia - by Forum Participants. "Replaced by" means the part was superseded. All of my part books date back to 1964 and New Holland have changed some part numbers. They usually put the old Ford part number on the package. I was suppressed when I looked up the part number of the auxiliary drive shaft because for some reason the part number went through a radical change and it lost its "Basic Part Number". Ford part numbers follow the following rules. Most part numbers are in three parts. The middle part is called the
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