Thanks for the help!!!
I did get the pump from Slick, he was a great help. The pump I purchased was the "regular" pump for an 8v71. The teeth on the drive gear were reversed. The next pump I could get would have been 2 days out, and being the impatient man that I am, I decided to remove the drive gear from my original pump and change it with the new one. I spoke with many experienced individuals today by phone and the going opinion was that I should wait for the "correct" pump. But, I talked with a man who maintains a fleet of charters and he said that there really is no difference in the actual pump itself, just the drive gear.
The pump installation went well. As I'm standing there listening to everything come up to temp. and watching for the explosion of leaks to appear at any minute, a thought crossed my mind.
How do you know if your water pump is working?
I was relatively sure that I had done everything I should have, i.e. check bolts, check fluid levels, pretty much all I could think of to double check. But, I didn't know how to check the flow of water. I had to just wait til the normal engine temp was reached, and then worry if it was just going to keep on going without stopping.
How would YOU have done it?
Thanks to all who were there for me when I had questions.