Pete:
Do you remember if the receiver of the wire connectors were color coded to help in connecting them properly?
Randy, interesting question - I think the folks that replied missed the issue.
Since there are four individual wires, each capable of being installed on any of four terminals, a classic non-idiot proof situation, is there any help in terms of color coding or labels on the pump (receiver) itself? If I recall my math correctly, the number of combinations would be four factorial, or 24 total.
Pictured below is a four individual wire pump installed, followed by pictures of the same pump removed on a bench. I found two other pumps from 67's and they are the same.
I see no indication on how to put the wires back on correctly. I presume one would have to resort to the manual, a picture, or a hand drawn sketch.
But that does not mean that my pump is original, even though I bought from the original owner in 1980 - anything can happen.
Perhaps someone with a one year 67 MPC can look to see if there were any changes, revisions, etc.