You guys are very helpful! I did put a little more tension on the pump, and I did agree that the V belt is all together different that normal automotive belts, so I will most likely buy a new one before the snow flies! One thing that I find interesting: when the engine is idling, there is barely any squealing, but one I rev up the engine, that is when the noise is heard. Most likely the culprit is where the oil has not reached operating temperature.
But, I did locate a rare find for my machine: a complete running chassis for the exact same year as mine! Complete with drive cogs, all wheels, tracks, front drive clutches which I am told are new, etc. All that is missing is the cap, engine and tranny! Done deal as far as I am concerned. I will be picking it up next week! Cool!