Reply To: 1956 Evinrude Big Twin #25022 water pump

[Geer Pyron]

Okay!
Lots of input and suggestions. All valid. Rereading the above posts I realized just how much I’ve learned! Pretty freaking cool. Ol’ Hank too. I suspect he can take off, fix, and replace that gear case and water pump with loud music playing, cars beeping, and pretty, scantily clad women dancing around him.
So, after all the trial and error, a nos wear plate was bought (suggestion of a Mr. Steve Woods) and compared to the old. The old was cupped slightly. New plate was installed and lo! She pumps! Tested on the boat and in a lake!
All is well.
Lesson learned, check the flatness (better word, what word would a machinist use, hmmmm) of the wear plate! Also, clean the diaganol hole in pump housing, which I learned was there and why(!).
Thanks again to all.
Geer

JMGP