Cusser
+1y
My 1988 B2200 water pump gone bad twice in the 17.5 years I've had it (183K miles), at about 188K and about 177K. each time I noticed a little coolant weeping onto the ground from that area.
First time, mechanic changed it in conjunction with a timing belt change, which was due, as the timing belt comes off first anyway.
Anyway, I replaced the water pump on mine laast Maym hadn't done a B2200 water pump before, or a timing belt of any sorts, took about two hours on a Sunday morning. So don't get CHEAP parts, not worth it. I used a Gates timing belt and a carQuest water pump, about $70 total.
There is a technical how-to here. And there's no need to remove the distributor either. Remember, the crankshaft pulley comes off with six bolts, somewhat hidden (10mm socket) - the large 21mm bolt DOES NOT GET REMOVED FOR THIS.
See