I've just noticed the dreaded drip of coolant from the timing belt case bottom, again!, I've rebuilt the pump twice now. I do have one of Joachims new shafts though, perhaps that will help. At least it lasted a few hundred miles this time!.
I've emailed Peter at PeMoPa asking if he has a new water pump for the 350, you never know.
I should have been clear, it's on my 350 Saturno. It's the original pump.
It was rebuilt, very carefully by me, I made the tools up for the press in the workshop at work, it all went well, and it looked just fine, but it's leaking again.