Cusser
+1y
I've got a 1988 B2200 but I have a Sanden AC compressor from a later year of B2200. Mine's a Sanden 708 model 7225 compressor, your 1991 B2600i likely uses a different model of the Sanden 708.
Anyway, just last fall I replaced my AC clutch completely (bearing was starting to go out, and I had a good used clutch saved from my old compressor. But I could've just replaced the bearing, mine takes a standard size, and maybe yours is the same, just measure it. The bearing for mine is available at various retailers, it's a pretty standard size, you'll likely need to measure yours.
My clutch bearing: Bore/i.d. = 35mm, outer diameter = 55mm, and 20mm deep
For me: part #M2021
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