Reply To: 1956 Evinrude Big Twin #25022 water pump

[Geer Pyron]

Labrador-guy, your post appeared as I was hitting submit. I noticed the differences in the photos and diagrams as well. We are actually working on a 1956 big twin, #25022, so it does have a different configuration. I’ve been taking from the posts what I can use, like water by-pass cover on correctly, and looking for cracks. These issues would be universal regardless of specific year or pump style. As another example, our pump housing does not have the hole in the outlet or discharge part of the housing. There is a small hole that permits water to fill the top outside of the housing though, just in a different place. At this point all suggestions are greatly appreciated. Specially ones that come with pictures!
I’ve also been working on a 1953/54 big twin. It has the water pump configuration like the above diagram (is it hard to disconnect the shift rod or what?!!!).
Anyway we’ll make it work and if we discover how or what we did to make it work I’ll be sure to let y’all know.
And I’ll keep my eye out for that old RBM.
Thanks again!
G

JMGP