[Synchro909]

Guys, I seek some info to confirm or otherwise what I have found. I took apart a going motor for inspection and decided to put it back together and run till it dies sometime later. I have no hope of getting it going again because the top of the oil pump/distributor drive gear shaft has a slot in it. Everything I see says it should be a tongue. The lower drive shaft I have has a slot each end, which I believe is correct. So, I have a slot trying to drive a slot - no go.
On Page 1-53, Les Andrews shows the lower shaft with a tongue on it. The diagram is repeated on page 1-105. Mr Andrews seems to contradict himself in instruction 18 on page 1-53 when he says "Insert the distributor shaft into the head, aligning the bottom slot of the shaft with the tab on the cam gear shaft."
As it stands, it seems I have the only cam gear shaft with a slot at the top and this motor was running. What's going on?
Looks like I might have to buy a new cam gear shaft with a tongue at the top.