I removed My leaking Water Pump and found the Pump was made in Japan (no makers name) and has a sheet metal impeller. See pic

I know a lot of people don’t like Water Pumps with the sheet metal impellers but I have had the car for 8 years and have had steady temps on the gauge and never over heated (till now that it started leaking) so having a sheet metal impeller is not the issue that People make of it.
On my Volvo Diesel the old pump had a cast impeller and the new one had a sheet metal impeller; again the sheet metal impeller has never caused an issue.

Unfortunately My Wife was driving the Car at the time. Said it over heated and she pulled over and let it cool then drove again. It got hot again and she again pulled over and let it cool. She never told me of the incidents.
The next day she took the car to work 2 miles away. Came home and at that point told me about the overheating. So I don’t really know if the Engine has survived or not.

I ordered a Gates Water Pump at $31.50 from eBay. Don’t want to spend the money on the finest water pump to find out if the Engine is no good.
The PO apparently broke off one of the Water Pump Bolts but it has not leaked from them in 8 years.

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84 300D, 82 Volvo 244Gl Diesel