@bavariaboy I think I may end up with a couple spares after this whole ordeal. Thanks for sharing about the vinyl strips in the trunk. I had noticed those, but I have yet to see many 02's in person to compare. Looking forward to going to a meetup someday!
@bergie33 We'll find out if I get to keep the broken pump, would be nice to be able to take the parts and rebuild the original BMW casted one. The Clymer 2002 Workshop Manual (highly recommend) has instructions, but it looks like you need a hydraulic press to pop the flange off and then you have to change out the bearing and set specific clearances then loctite it back on with the press. After reading all that, I think I'll wait till I feel called to tackle that elective and have a press.
@billy g I'm going to install with a new OEM gasket before using any sealant. I've replaced a water pumps in cars and tractors and never needed a gasket sealant. The hard part is keeping the gasket in the right spot when you're installing it so you don't damage it. I'll probably do a test run with the Saleri gasket and then use the BMW one for the real deal. I just read someone using a small amount of spray adhesive to keep it in spot (might try that if I have a hard time). To prep, I cleaned where the water pump impeller rusted on the timing chain cover with some brake cleaner, #0000 steel wool, and a towel. I still need to find a brush to clean out the holes for the bolts and I'll put Permatex anti-seize when reinstalling them for my future self.