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I had an A/C clutch replaced once. Don't know how it's done.
Replacing the whole unit with a free-turning junker is a simple solution. Might well be the best way to go.
Another solution is to move the p/s pump towards the radiator about 3/4" (OK, about 18-20 mm) and then run it directly off the pulley that normally runs the A/C pump.
I've seen writeups (here) on a couple different ways to do this. My choice would be to use bushings and/or washers, along with a longer-than-standard power steering mount bolt, to shift it forward. I think you can use a 5/8" bolt if metric is not available. Be sure to get a good grade of hardened steel. When doing so you need to replace the 3 rubber mount bushings with polyurethane ones, as the extended position and leverage from the tightened belt on the p/s pump would pull it out of line. The poly bushings are stiffer.
2 bushings go on the main mount ears, where the long bolt goes. The 3rd bushing is on the tension adjuster. Get 'em from fcpgroton.com. You might need a different length belt - you'll just have to check that out when you get that far along.
There are other methods of bypassing the AC pump - but they usually involve stealing a pulley and belt position from the pair that run the fan, water pump, and alternator. There are reasons why those three are run via two belts, so I think that if I had do do a bypass I'd leave that pair alone, and move the p/s pump forward instead.
Part of my reasoning is, if the fan, water pump or alternator fail, that's major trouble. If something should go wrong with the shifted power steering pump, that's not as serious.
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Sven: '89 245, IPD sways, electric rad. fan conversion, 28+ mpg - auto tranny. 850 mi/week commute.
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