Replaceing impeller in older 65 merk. Ser.# starts with 21....
it's a 4 cylinder.
In the driveshaft houseing their is a copper water tube that plugs into the impeller housing, Merk part # 2895171.
Merk parts lists it as obsolete? Am I dead in the water or Can I fashon one of my own? Bilbo

If you have the old one you might be able to get a machine shop to help you.

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