David
Thanks. Yes, being a long time sailor I was surprised to see so many dissimilar metals in contact with each other. I use TefGel on the boat. It pretty much prevents corrosion at the interface of dissimilar metals in a salty, wet marine environment. I still have a few tubes left.
The reason for changing out the water pump was it leaking due to severe corrosion in the area that the hoses connect to. I suspect that I have a big stray current problem.
Does anyone put anodes in their radiators? (It's common on marine engines to have a sacrificial zinc anode in the heat exchanger).. Just a thought.
