You shouldn't have to remove the radiator. The shroud is in the way, but the job will go a whole lot easier if you remove the fan and the belts (including the generator belt).
And that will be the key to your belt tension adjustment. Your water pump belt runs off the crank pulley and also drives your fan, and the adjustment for the whole belt is at the fan.
The fan is mounted to a slot on the casting that holds your upper radiator hose. The slot SHOULD hold the nut on the back in place while you loosen the fan up. That is done by turning what looks like a nut (but is actually a part of the fan shaft that is machined into a hex) on the front of the slot. In other words, the shaft threads into the nut on the back of the slot in the bracket. You may have to fiddle and try to get a wrench on that back nut if it turns. If so, just hold the nut on the back side -- but do your turning on the shaft.
With the fan and belts out of the way, it's still close quarters, but you'll be able to go over the governor from the right side to get to the other bolts on the water pump and have room enough to wiggle the pump off the hose. Couldn't hurt to put a piece of corrugated cardboard on the back side of the radiator while you do this so you don't ding up your fins. It might also be helpful getting the pumps off and on to loosen the clamps on both ends of the lower hose to give youurself some added twist the geometry of finaglin' it off.
Getting your belt tension back is a matter of starting the fan shaft back onto the nut when you're done. Tighten it just enough for it to hold, then use whatever in the toolbox works to pry it up enough to get the belt tension right, and hold it there while you finish tightening the shaft onto the nut.
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Today's Featured Article - Bad Vibes - by Curtis Von Fange. One of the strangest ways to communicate with our tractor is to ask it how it feels. "Ask it how it feels," you say? Yup, ask it how it feels. Now, as with the other articles in this series one has to be able to hear what 'ole blue' is trying to say in response. The nice thing about our old iron friends is that they are usually quite consistent in their response, rather unlike some people I know who might change what they say due to the weather or other mitigating circumstances. But since t
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